Articles | Volume 13, issue 2
https://doi.org/10.5194/esurf-13-257-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-13-257-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Mar 2025
Research article |
| 27 Mar 2025
| 27 Mar 2025
Haloturbation in the northern Atacama Desert revealed by a hidden subsurface network of calcium sulfate wedges
Aline Zinelabedin
CORRESPONDING AUTHOR
Institute of Geology and Mineralogy, University of Cologne, Zülpicher Str. 49b, 50674 Cologne, Germany
Institute of Geography, University of Cologne, Zülpicher Str. 45, 50674 Cologne, Germany
Joel Mohren
Institute of Geology and Mineralogy, University of Cologne, Zülpicher Str. 49b, 50674 Cologne, Germany
Department of Geography, RWTH Aachen University, Wüllnerstr. 5b, 52062 Aachen, Germany
Maria Wierzbicka-Wieczorek
Institute of Geology and Mineralogy, University of Cologne, Zülpicher Str. 49b, 50674 Cologne, Germany
Tibor Janos Dunai
Institute of Geology and Mineralogy, University of Cologne, Zülpicher Str. 49b, 50674 Cologne, Germany
Stefan Heinze
Institute for Nuclear Physics, University of Cologne, Zülpicher Str. 77, 50937 Cologne, Germany
Benedikt Ritter
Institute of Geology and Mineralogy, University of Cologne, Zülpicher Str. 49b, 50674 Cologne, Germany
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Volker Wennrich, Julia Diederich-Leicher, Bárbara Nataly Blanco-Arrué, Christoph Büttner, Stefan Buske, Eduardo Campos Sepulveda, Tibor Dunai, Jacob Feller, Emma Galego, Ascelina Hasberg, Niklas Leicher, Damián Alejandro López, Jorge Maldonado, Alicia Medialdea, Lukas Ninnemann, Russell Perryman, Juan Cristóbal Ríos-Contesse, Benedikt Ritter, Stephanie Scheidt, Barbara Vargas-Machuca, Pritam Yogeshwar, and Martin Melles
Sci. Dril., 34, 1–20, https://doi.org/10.5194/sd-34-1-2025, https://doi.org/10.5194/sd-34-1-2025, 2025
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We present the results of comprehensive pre-site surveys and deep drillings in two clay pans in the central Atacama Desert of northern Chile, one of the driest deserts on Earth. The results of the site surveys as well as lithological and downhole-logging data of the deep-drilling operations highlight the potential of the sediment records from the PAG (Playa Adamito Grande) and Paranal clay pans to provide unprecedented information on the Neogene precipitation history of the hyperarid core of the Atacama Desert.
Joel Mohren, Hendrik Wiesel, Wulf Amelung, L. Keith Fifield, Alexandra Sandhage-Hofmann, Erik Strub, Steven A. Binnie, Stefan Heinze, Elmarie Kotze, Chris Du Preez, Stephen G. Tims, and Tibor J. Dunai
Biogeosciences, 22, 1077–1094, https://doi.org/10.5194/bg-22-1077-2025, https://doi.org/10.5194/bg-22-1077-2025, 2025
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We measured concentrations of nuclear fallout in soil samples taken from arable land in South Africa. We find that during the second half of the 20th century, the data strongly correlate with the organic matter content of the soils. The finding implies that wind erosion strongly influenced the loss of organic matter in the soils we investigated. Furthermore, the exponential decline of fallout concentrations and organic matter content over time peaks shortly after native grassland is ploughed.
Benedikt Ritter, Richard Albert, Aleksandr Rakipov, Frederik M. Van der Wateren, Tibor J. Dunai, and Axel Gerdes
Geochronology, 5, 433–450, https://doi.org/10.5194/gchron-5-433-2023, https://doi.org/10.5194/gchron-5-433-2023, 2023
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Chronological information on the evolution of the Namib Desert is scarce. We used U–Pb dating of silcretes formed by pressure solution during calcrete formation to track paleoclimate variability since the Late Miocene. Calcrete formation took place during the Pliocene with an abrupt cessation at 2.9 Ma. The end took place due to deep canyon incision which we dated using TCN exposure dating. With our data we correct and contribute to the Neogene history of the Namib Desert and its evolution.
Tibor János Dunai, Steven Andrew Binnie, and Axel Gerdes
Geochronology, 4, 65–85, https://doi.org/10.5194/gchron-4-65-2022, https://doi.org/10.5194/gchron-4-65-2022, 2022
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We develop in situ-produced terrestrial cosmogenic krypton as a new tool to date and quantify Earth surface processes, the motivation being the availability of six stable isotopes and one radioactive isotope (81Kr, half-life 229 kyr) and of an extremely weathering-resistant target mineral (zircon). We provide proof of principle that terrestrial Krit can be quantified and used to unravel Earth surface processes.
Benedikt Ritter, Andreas Vogt, and Tibor J. Dunai
Geochronology, 3, 421–431, https://doi.org/10.5194/gchron-3-421-2021, https://doi.org/10.5194/gchron-3-421-2021, 2021
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We describe the design and performance of a new noble gas mass laboratory dedicated to the development of and application to cosmogenic nuclides at the University of Cologne (Germany). At the core of the laboratory are a state-of-the-art high-mass-resolution multicollector Helix MCPlus (Thermo-Fisher) noble gas mass spectrometer and a novel custom-designed automated extraction line, including a laser-powered extraction furnace. Performance was tested with intercomparison (CREU-1) material.
Joel Mohren, Steven A. Binnie, Gregor M. Rink, Katharina Knödgen, Carlos Miranda, Nora Tilly, and Tibor J. Dunai
Earth Surf. Dynam., 8, 995–1020, https://doi.org/10.5194/esurf-8-995-2020, https://doi.org/10.5194/esurf-8-995-2020, 2020
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In this study, we comprehensively test a method to derive soil densities under fieldwork conditions. The method is mainly based on images taken from consumer-grade cameras. The obtained soil/sediment densities reflect
truevalues by generally > 95 %, even if a smartphone is used for imaging. All computing steps can be conducted using freeware programs. Soil density is an important variable in the analysis of terrestrial cosmogenic nuclides, for example to infer long-term soil production rates.
Related subject area
Physical: Geomorphology (including all aspects of fluvial, coastal, aeolian, hillslope and glacial geomorphology)
Sediment aggradation rates in Himalayan rivers revealed through the InSAR differential residual topographic phase
The glacial paleolandscapes of Southern Africa: the legacy of the Late Paleozoic Ice Age
Multiple equilibrium configurations in river-dominated deltas
Investigating the celerity of propagation for small perturbations and dispersive sediment aggradation under a supercritical flow
Short communication: Multiscale topographic complexity analysis with pyTopoComplexity
Sub-surface processes and heat fluxes at coarse blocky Murtèl rock glacier (Engadine, eastern Swiss Alps): seasonal ice and convective cooling render rock glaciers climate-robust
Influence of alluvial slope on avulsion in river deltas
Surficial sediment remobilization by shear between sediment and water above tsunamigenic megathrust ruptures: experimental study
Curvature-based pebble segmentation for reconstructed surface meshes
An evaluation of flow-routing algorithms for calculating contributing area on regular grids
Geometric constraints on tributary fluvial network junction angles
Effect of grain-sorting waves on alternate bar dynamics: Implications of the breakdown of the hydrograph boundary layer
Automatic detection of floating instream large wood in videos using deep learning
Investigating uncertainty and parameter sensitivity in bedform analysis by using a Monte Carlo approach
Geomorphic imprint of high-mountain floods: insights from the 2022 hydrological extreme across the upper Indus River catchment in the northwestern Himalayas
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Landscape response to tectonic deformation and cyclic climate change since ca. 800 ka in the southern central Andes
The Aare main overdeepening on the northern margin of the European Alps: basins, riegels, and slot canyons
Surface grain-size mapping of braided channels from SfM photogrammetry
A simple model for faceted topographies at normal faults based on an extended stream-power law
Testing floc settling velocity models in rivers and freshwater wetlands
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The impact of bedrock meander cutoffs on 50 kyr scale incision rates, San Juan River, Utah
Spatiotemporal denudation rates of the Swabian Alb escarpment (Southwest Germany) dominated by base-level lowering and lithology
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Large structure simulation for landscape evolution models
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Role of the forcing sources in morphodynamic modelling of an embayed beach
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Time-varying drainage basin development and erosion on volcanic edifices
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Jingqiu Huang and Hugh D. Sinclair
Earth Surf. Dynam., 13, 531–547, https://doi.org/10.5194/esurf-13-531-2025, https://doi.org/10.5194/esurf-13-531-2025, 2025
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We develop a novel approach based on satellite radar images to quantify millimetre-scale sedimentation during monsoon floods over a 15 km stretch of four rivers, from the Himalayan mountain front to the gravel–sand transition. The results show how sediment accumulates more rapidly near the mountain front and decreases downstream, while the floodplain sinks. This method can improve river monitoring, enhance flood prediction, and benefit communities at risk of flooding in Nepal and India.
Pierre Dietrich, François Guillocheau, Guilhem A. Douillet, Neil P. Griffis, Guillaume Baby, Daniel P. Le Héron, Laurie Barrier, Maximilien Mathian, Isabel P. Montañez, Cécile Robin, Thomas Gyomlai, Christoph Kettler, and Axel Hofmann
Earth Surf. Dynam., 13, 495–529, https://doi.org/10.5194/esurf-13-495-2025, https://doi.org/10.5194/esurf-13-495-2025, 2025
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At the evocation of icy landscapes, Africa is not the first place that comes to mind. The modern relief of Southern Africa is generally considered to be a result of uplift and counteracting erosion. We show that some of the modern relief of this region is due to fossil glacial landscapes – striated pavements, valleys, and fjords – tied to an ice age that occurred ca. 300 Myr ago. We focus on how these landscapes have escaped being erased for hundreds of millions of years.
Lorenzo Durante, Nicoletta Tambroni, and Michele Bolla Pittaluga
Earth Surf. Dynam., 13, 455–471, https://doi.org/10.5194/esurf-13-455-2025, https://doi.org/10.5194/esurf-13-455-2025, 2025
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River deltas evolve due to natural forces and human activities, posing challenges for communities relying on stable water flow. This study examines how different flow distributions shape delta channels. Using a new theoretical model, we identify branch length as the key factor influencing stability. Applying this to Italy's Po River Delta, we highlight areas at risk of change, providing insights for better management and planning.
Hasan Eslami, Erfan Poursoleymanzadeh, Mojtaba Hiteh, Keivan Tavakoli, Melika Yavari Nia, Ehsan Zadehali, Reihaneh Zarrabi, and Alessio Radice
Earth Surf. Dynam., 13, 437–454, https://doi.org/10.5194/esurf-13-437-2025, https://doi.org/10.5194/esurf-13-437-2025, 2025
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A channel may be aggraded by overloaded sediment. In this study we realize an aggradation experiment and determine the celerity at which an aggradation wave, due to sediment overloading, migrates. We also investigate the celerity of small perturbations, as quantified by mathematical formulations. The celerities of the two kinds are correlated with each other. However, the celerity of small perturbations is larger than the other one, which is less than a few percent of the water velocity.
Larry Syu-Heng Lai, Adam M. Booth, Alison R. Duvall, and Erich Herzig
Earth Surf. Dynam., 13, 417–435, https://doi.org/10.5194/esurf-13-417-2025, https://doi.org/10.5194/esurf-13-417-2025, 2025
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pyTopoComplexity is an open-source Python tool for multiscale land surface complexity analysis. Applied to a landslide-affected area in Washington, USA, it accurately identified landform features at various scales, enhancing our understanding of landform recovery after disturbances. By integrating with Landlab’s landscape evolution simulations, the software allows researchers to explore how different processes drive the evolution of surface complexity in response to natural forces.
Dominik Amschwand, Jonas Wicky, Martin Scherler, Martin Hoelzle, Bernhard Krummenacher, Anna Haberkorn, Christian Kienholz, and Hansueli Gubler
Earth Surf. Dynam., 13, 365–401, https://doi.org/10.5194/esurf-13-365-2025, https://doi.org/10.5194/esurf-13-365-2025, 2025
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Rock glaciers are comparatively climate-robust permafrost landforms. We estimated the energy budget of the seasonally thawing active layer (AL) of Murtèl rock glacier (Swiss Alps) based on a novel sub-surface sensor array. In the coarse blocky AL, heat is transferred by thermal radiation and air convection. The ground heat flux is largely spent on melting seasonal ice in the AL. Convective cooling and the seasonal ice turnover make rock glaciers climate-robust and shield the permafrost beneath.
Octria A. Prasojo, Trevor B. Hoey, Amanda Owen, and Richard D. Williams
Earth Surf. Dynam., 13, 349–363, https://doi.org/10.5194/esurf-13-349-2025, https://doi.org/10.5194/esurf-13-349-2025, 2025
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Decades of delta avulsion (i.e. channel abrupt jump) studies have not resolved what the main controls of delta avulsion are. Using a computer model, integrated with field observation, analytical, and laboratory-made deltas, we found that the sediment load, which itself is controlled by the steepness of the river upstream of a delta, controls the timing of avulsion. We can now better understand the main cause of abrupt channel changes in deltas, a finding that aids flood risk management in river deltas.
Chloé Seibert, Cecilia McHugh, Chris Paola, Leonardo Seeber, and James Tucker
Earth Surf. Dynam., 13, 341–348, https://doi.org/10.5194/esurf-13-341-2025, https://doi.org/10.5194/esurf-13-341-2025, 2025
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We propose a new mechanism of co-seismic sediment entrainment induced by shear stress at the sediment–water interface during major subduction earthquakes rupturing to the trench. Physical experiments show that flow velocities consistent with long-period earthquake motions can entrain synthetic marine sediment, and high-frequency vertical shaking can enhance this mobilization. They validate the proposed entrainment mechanism, which opens new avenues for paleoseismology in deep-sea environments.
Aljoscha Rheinwalt, Benjamin Purinton, and Bodo Bookhagen
EGUsphere, https://doi.org/10.5194/egusphere-2025-1110, https://doi.org/10.5194/egusphere-2025-1110, 2025
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Our study presents a computer-based method to detect and measure pebbles in 3D models reconstructed from camera photos. We tested it in a controlled setup and achieved 98 % accuracy in detecting pebbles. Unlike traditional 2D methods, our approach provides full 3D size and orientation data. This improves sediment analysis and riverbed studies by offering more precise measurements. Our work highlights the potential of 3D modeling for studying natural surfaces.
Alexander B. Prescott, Jon D. Pelletier, Satya Chataut, and Sriram Ananthanarayan
Earth Surf. Dynam., 13, 239–256, https://doi.org/10.5194/esurf-13-239-2025, https://doi.org/10.5194/esurf-13-239-2025, 2025
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Many Earth surface processes are controlled by the spatial pattern of surface water flow. We review commonly used methods for predicting such spatial patterns in digital landform models and document the pros and cons of commonly used methods. We propose a new method that is designed to minimize those limitations and show that it works well in a variety of test cases.
Jon D. Pelletier, Robert G. Hayes, Olivia Hoch, Brendan Fenerty, and Luke A. McGuire
Earth Surf. Dynam., 13, 219–238, https://doi.org/10.5194/esurf-13-219-2025, https://doi.org/10.5194/esurf-13-219-2025, 2025
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We demonstrate that landscapes with more planar initial conditions tend to have lower mean junction angles. Geomorphic processes on alluvial piedmonts result in especially planar initial conditions, consistent with a correlation between junction angles and the presence/absence of Late Cenozoic alluvial deposits and the constraint imposed by the intersection of planar approximations to the topography upslope from tributary junctions. We caution against using junction angles to infer paleoclimate.
Soichi Tanabe and Toshiki Iwasaki
EGUsphere, https://doi.org/10.5194/egusphere-2025-103, https://doi.org/10.5194/egusphere-2025-103, 2025
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We try to understand how the sediment supply from the upstream river reach affect the downstream river morphology using a numerical model. If the supplied sediment is composed of variety of size class of particles, a small size bed wave that is composed of mainly fine particles (sorting wave) can propagate to downstream very long distance. However, presence of bars suppresses the effect of sorting wave greatly, and thus the sediment supply has limited role in the downstream river morphology.
Janbert Aarnink, Tom Beucler, Marceline Vuaridel, and Virginia Ruiz-Villanueva
Earth Surf. Dynam., 13, 167–189, https://doi.org/10.5194/esurf-13-167-2025, https://doi.org/10.5194/esurf-13-167-2025, 2025
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This study presents a novel convolutional-neural-network approach for detecting instream large wood in rivers, addressing the need for flexible monitoring methods across diverse data sources. Using a database of 15 228 fully labelled images, the model achieved a weighted mean average precision of 67 %. Fine-tuning parameters and sampling techniques can improve performance by over 10 % in some cases, offering valuable insights into ecosystem management.
Julius Reich and Axel Winterscheid
Earth Surf. Dynam., 13, 191–217, https://doi.org/10.5194/esurf-13-191-2025, https://doi.org/10.5194/esurf-13-191-2025, 2025
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Analyzing the geometry and the dynamics of riverine bedforms (so-called dune tracking) is important for various fields of application and contributes to sound and efficient river and sediment management. We developed a workflow that enables a robust estimation of bedform characteristics and with which comprehensive sensitivity analyses can be carried out. Using a field dataset, we show that the setting of input parameters in bedform analyses can have a significant impact on the results.
Abhishek Kashyap, Kristen L. Cook, and Mukunda Dev Behera
Earth Surf. Dynam., 13, 147–166, https://doi.org/10.5194/esurf-13-147-2025, https://doi.org/10.5194/esurf-13-147-2025, 2025
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Short-lived, high-magnitude flood events across high mountain regions leave substantial geomorphic imprints, which are frequently triggered by excess precipitation, glacial lake outbursts, and natural dam breaches. These catastrophic floods highlight the importance of understanding the complex interaction between climatic, hydrological, and geological forces in bedrock catchments. Extreme floods can have long-term geomorphic consequences on river morphology and fluvial processes.
Gareth G. Roberts
EGUsphere, https://doi.org/10.5194/egusphere-2025-307, https://doi.org/10.5194/egusphere-2025-307, 2025
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The use of new Artificial Intelligence (AI) techniques to learn how landscapes evolve is demonstrated. A few ‘snapshots' of an eroding landscape at different stages of its history provide enough information for AI to ascertain rules governing its evolution. Once the rules are known, predicting landscape evolution is extremely rapid and efficient, providing new tools to understand landscape change.
Caroline Fenske, Jean Braun, François Guillocheau, and Cécile Robin
Earth Surf. Dynam., 13, 119–146, https://doi.org/10.5194/esurf-13-119-2025, https://doi.org/10.5194/esurf-13-119-2025, 2025
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We have developed a new numerical model to represent the formation of duricrusts, which are hard mineral layers found in soils and at the surface of the Earth. We assume that the formation mechanism implies variations in the height of the water table and that the hardening rate is proportional to precipitation. The model allows us to quantify the potential feedbacks they generate on the surface topography and the thickness of the regolith/soil layer.
Jens M. Turowski, Fergus McNab, Aaron Bufe, and Stefanie Tofelde
Earth Surf. Dynam., 13, 97–117, https://doi.org/10.5194/esurf-13-97-2025, https://doi.org/10.5194/esurf-13-97-2025, 2025
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Channel belts comprise the area affected by a river due to lateral migration and floods. As a landform, they affect water resources and flood hazard, and they often host unique ecological communities. We develop a model describing the evolution of channel-belt area over time. The model connects the behaviour of the river to the evolution of the channel belt over a timescale of centuries. A comparison to selected data from experiments and real river systems verifies the random walk approach.
Rémi Bossis, Vincent Regard, Sébastien Carretier, and Sandrine Choy
Earth Surf. Dynam., 13, 71–79, https://doi.org/10.5194/esurf-13-71-2025, https://doi.org/10.5194/esurf-13-71-2025, 2025
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The erosion of rocky coasts occurs episodically through wave action and landslides, constituting a major natural hazard. Documenting the factors that control the coastal retreat rate over millennia is fundamental to evidencing any change in time. However, the known rates to date are essentially representative of the last few decades. Here, we present a new method using the concentration of an isotope, 10Be, in sediment eroded from the cliff to quantify its retreat rate averaged over millennia.
Jean Vérité, Clément Narteau, Olivier Rozier, Jeanne Alkalla, Laurie Barrier, and Sylvain Courrech du Pont
Earth Surf. Dynam., 13, 23–39, https://doi.org/10.5194/esurf-13-23-2025, https://doi.org/10.5194/esurf-13-23-2025, 2025
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Using a numerical model in 2D, we study how two identical dunes interact with each other when exposed to reversing winds. Depending on the distance between the dunes, they either repel or attract each other until they reach an equilibrium distance, which is controlled by the wind strength, wind reversal frequency, and dune size. This process is controlled by the modification of wind flow over dunes of various shapes, influencing the sediment transport downstream.
Orie Cecil, Nicholas Cohn, Matthew Farthing, Sourav Dutta, and Andrew Trautz
Earth Surf. Dynam., 13, 1–22, https://doi.org/10.5194/esurf-13-1-2025, https://doi.org/10.5194/esurf-13-1-2025, 2025
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Using computational fluid dynamics, we analyze the error trends of an analytical shear stress distribution model used to drive aeolian transport for coastal dunes, which are an important line of defense against storm-related flooding hazards. We find that compared to numerical simulations, the analytical model results in a net overprediction of the landward migration rate. Additionally, two data-driven approaches are proposed for reducing the error while maintaining computational efficiency.
Joshua M. Wolstenholme, Christopher J. Skinner, David J. Milan, Robert E. Thomas, and Daniel R. Parsons
EGUsphere, https://doi.org/10.5194/egusphere-2024-3001, https://doi.org/10.5194/egusphere-2024-3001, 2024
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Leaky wooden dams are a popular form of natural flood management used to slow the flow of water by increasing floodplain connectivity whilst decreasing connectivity along the river profile. By monitoring two leaky wooden dams in North Yorkshire, UK, we present the geomorphological response to their installation, highlighting that the structures significantly increase channel complexity in response to different river flow conditions.
Hayden L. Jacobson, Danica L. Roth, Gabriel Walton, Margaret Zimmer, and Kerri Johnson
Earth Surf. Dynam., 12, 1415–1446, https://doi.org/10.5194/esurf-12-1415-2024, https://doi.org/10.5194/esurf-12-1415-2024, 2024
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Loose grains travel farther after a fire because no vegetation is left to stop them. This matters since loose grains at the base of a slope can turn into a debris flow if it rains. To find if grass growing back after a fire had different impacts on grains of different sizes on slopes of different steepness, we dropped thousands of natural grains and measured how far they went. Large grains went farther 7 months after the fire than 11 months after, and small grain movement didn’t change much.
Elizabeth N. Orr, Taylor F. Schildgen, Stefanie Tofelde, Hella Wittmann, and Ricardo N. Alonso
Earth Surf. Dynam., 12, 1391–1413, https://doi.org/10.5194/esurf-12-1391-2024, https://doi.org/10.5194/esurf-12-1391-2024, 2024
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Fluvial terraces and alluvial fans in the Toro Basin, NW Argentina, record river evolution and global climate cycles over time. Landform dating reveals lower-frequency climate cycles (100 kyr) preserved downstream and higher-frequency cycles (21/40 kyr) upstream, supporting theoretical predications that longer rivers filter out higher-frequency climate signals. This finding improves our understanding of the spatial distribution of sedimentary paleoclimate records within landscapes.
Fritz Schlunegger, Edi Kissling, Dimitri Tibo Bandou, Guilhem Amin Douillet, David Mair, Urs Marti, Regina Reber, Patrick Schläfli, and Michael Alfred Schwenk
Earth Surf. Dynam., 12, 1371–1389, https://doi.org/10.5194/esurf-12-1371-2024, https://doi.org/10.5194/esurf-12-1371-2024, 2024
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Overdeepenings are bedrock depressions filled with sediment. We combine the results of a gravity survey with drilling data to explore the morphology of such a depression beneath the city of Bern. We find that the target overdeepening comprises two basins >200 m deep. They are separated by a bedrock riegel that itself is cut by narrow canyons up to 150 m deep. We postulate that these structures formed underneath a glacier, where erosion by subglacial meltwater caused the formation of the canyons.
Loïs Ribet, Frédéric Liébault, Laurent Borgniet, Michaël Deschâtres, and Gabriel Melun
EGUsphere, https://doi.org/10.5194/egusphere-2024-3697, https://doi.org/10.5194/egusphere-2024-3697, 2024
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This work presents a protocol and a model to get the size of the pebbles in mountain rivers from Unmanned Aerial Vehicle images. A set of 12 rivers located in south-eastern France were photographed to build the model. The results show that the model has little error and should be usable for similar rivers. Grain-size of mountain rivers is an important parameter for environmental diagnostics by mapping the aquatic habitats and for flood management by estimating the pebbles fluxes during floods.
Stefan Hergarten
Earth Surf. Dynam., 12, 1315–1327, https://doi.org/10.5194/esurf-12-1315-2024, https://doi.org/10.5194/esurf-12-1315-2024, 2024
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Faceted topographies are impressive footprints of active tectonics in geomorphology. This paper investigates the evolution of faceted topographies at normal faults and their interaction with a river network theoretically and numerically. As a main result beyond several relations for the geometry of facets, the horizontal displacement associated with normal faults is crucial for the dissection of initially polygonal facets into triangular facets bounded by almost parallel rivers.
Justin A. Nghiem, Gen K. Li, Joshua P. Harringmeyer, Gerard Salter, Cédric G. Fichot, Luca Cortese, and Michael P. Lamb
Earth Surf. Dynam., 12, 1267–1294, https://doi.org/10.5194/esurf-12-1267-2024, https://doi.org/10.5194/esurf-12-1267-2024, 2024
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Fine sediment grains in freshwater can cohere into faster-settling particles called flocs, but floc settling velocity theory has not been fully validated. Combining three data sources in novel ways in the Wax Lake Delta, we verified a semi-empirical model relying on turbulence and geochemical factors. For a physics-based model, we showed that the representative grain diameter within flocs relies on floc structure and that heterogeneous flow paths inside flocs increase floc settling velocity.
Jessica Marggraf, Guillaume Dramais, Jérôme Le Coz, Blaise Calmel, Benoît Camenen, David J. Topping, William Santini, Gilles Pierrefeu, and François Lauters
Earth Surf. Dynam., 12, 1243–1266, https://doi.org/10.5194/esurf-12-1243-2024, https://doi.org/10.5194/esurf-12-1243-2024, 2024
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Suspended-sand fluxes in rivers vary with time and space, complicating their measurement. The proposed method captures the vertical and lateral variations of suspended-sand concentration throughout a river cross-section. It merges water samples taken at various positions throughout the cross-section with high-resolution acoustic velocity measurements. This is the first method that includes a fully applicable uncertainty estimation; it can easily be applied to any other study sites.
Dominic T. Robson and Andreas C. W. Baas
Earth Surf. Dynam., 12, 1205–1226, https://doi.org/10.5194/esurf-12-1205-2024, https://doi.org/10.5194/esurf-12-1205-2024, 2024
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Barchans are fast-moving sand dunes which form large populations (swarms) on Earth and Mars. We show that a small range of model parameters produces swarms in which dune size does not vary downwind – something that is observed in nature but not when using earlier models. We also show how the shape of dunes and the spatial patterns they form are affected by wind direction. This work furthers our understanding of the interplay between environmental drivers, dune interactions, and swarm properties.
Jeffrey Keck, Erkan Istanbulluoglu, Benjamin Campforts, Gregory Tucker, and Alexander Horner-Devine
Earth Surf. Dynam., 12, 1165–1191, https://doi.org/10.5194/esurf-12-1165-2024, https://doi.org/10.5194/esurf-12-1165-2024, 2024
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MassWastingRunout (MWR) is a new landslide runout model designed for sediment transport, landscape evolution, and hazard assessment applications. MWR is written in Python and includes a calibration utility that automatically determines best-fit parameters for a site and empirical probability density functions of each parameter for probabilistic model implementation. MWR and Jupyter Notebook tutorials are available as part of the Landlab package at https://github.com/landlab/landlab.
Ariane Mueting and Bodo Bookhagen
Earth Surf. Dynam., 12, 1121–1143, https://doi.org/10.5194/esurf-12-1121-2024, https://doi.org/10.5194/esurf-12-1121-2024, 2024
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This study investigates the use of optical PlanetScope data for offset tracking of the Earth's surface movement. We found that co-registration accuracy is locally degraded when outdated elevation models are used for orthorectification. To mitigate this bias, we propose to only correlate scenes acquired from common perspectives or base orthorectification on more up-to-date elevation models generated from PlanetScope data alone. This enables a more detailed analysis of landslide dynamics.
Cho-Hee Lee, Yeong Bae Seong, John Weber, Sangmin Ha, Dong-Eun Kim, and Byung Yong Yu
Earth Surf. Dynam., 12, 1091–1120, https://doi.org/10.5194/esurf-12-1091-2024, https://doi.org/10.5194/esurf-12-1091-2024, 2024
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Topographic metrics were used to understand changes due to tectonic activity. We evaluated the relative tectonic activity along the Ulsan Fault Zone (UFZ), one of the most active fault zones in South Korea. We divided the UFZ into five segments, based on the spatial variation in activity. We modeled the landscape evolution of the study area and interpreted tectono-geomorphic history during which the northern part of the UFZ experienced asymmetric uplift, while the southern part did not.
Viktoria Kosmalla, Oliver Lojek, Jana Carus, Kara Keimer, Lukas Ahrenbeck, Björn Mehrtens, David Schürenkamp, Boris Schröder, and Nils Goseberg
EGUsphere, https://doi.org/10.5194/egusphere-2024-2688, https://doi.org/10.5194/egusphere-2024-2688, 2024
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This study analysed seasonal biomechanical traits of marram grass at two coastal dune sites using monthly field and lab data acquired 2022. Differences in density, leaf length, and flower stems were observed, which are unaffected by wind and deemed transferable. These findings enable surrogate model development for numerical and physical experiments alike, where live vegetation is impractical. Results address the knowledge gap how dune stability and erosion resistance are affected by vegetation.
Juditha Aga, Livia Piermattei, Luc Girod, Kristoffer Aalstad, Trond Eiken, Andreas Kääb, and Sebastian Westermann
Earth Surf. Dynam., 12, 1049–1070, https://doi.org/10.5194/esurf-12-1049-2024, https://doi.org/10.5194/esurf-12-1049-2024, 2024
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Coastal rock cliffs on Svalbard are considered to be fairly stable; however, long-term trends in coastal-retreat rates remain unknown. This study examines changes in the coastline position along Brøggerhalvøya, Svalbard, using aerial images from 1970, 1990, 2010, and 2021. Our analysis shows that coastal-retreat rates accelerate during the period 2010–2021, which coincides with increasing storminess and retreating sea ice.
Aaron T. Steelquist, Gustav B. Seixas, Mary L. Gillam, Sourav Saha, Seulgi Moon, and George E. Hilley
Earth Surf. Dynam., 12, 1071–1089, https://doi.org/10.5194/esurf-12-1071-2024, https://doi.org/10.5194/esurf-12-1071-2024, 2024
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The rates at which rivers erode their bed can be used to interpret the geologic history of a region. However, these rates depend significantly on the time window over which you measure. We use multiple dating methods to determine an incision rate for the San Juan River and compare it to regional rates with longer timescales. We demonstrate how specific geologic events, such as cutoffs of bedrock meander bends, are likely to preserve material we can date but also bias the rates we measure.
Mirjam Schaller, Daniel Peifer, Alexander B. Neely, Thomas Bernard, Christoph Glotzbach, Alexander R. Beer, and Todd A. Ehlers
EGUsphere, https://doi.org/10.5194/egusphere-2024-2729, https://doi.org/10.5194/egusphere-2024-2729, 2024
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This study reports chemical weathering, physical erosion, and total denudation rates from river load data in the Swabian Alb, Southwest Germany. Tributaries to the Neckar River draining to the North show higher rates than tributaries draining to the South into the Danube River causing a retreat of the Swabian Alb escarpment. Observations are discussed in the light of lithology, climate, and topography. The data are further compared to other rates over space and time as well as to global data.
Riccardo Bonomelli, Marco Pilotti, and Gabriele Farina
EGUsphere, https://doi.org/10.5194/egusphere-2024-2267, https://doi.org/10.5194/egusphere-2024-2267, 2024
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Debris flows are fundamental components of the hazard in mountain regions and numerical models must be used for the related risk computation. Most existing commercial software strongly conceptualizes the main characteristics of the flow, leading to an inevitable calibration process, that is time-consuming and difficult to accomplish. This contribution offers some physically based solutions to confine the calibration process and to better understand the implications of the selected choice.
Johannes Leinauer, Michael Dietze, Sibylle Knapp, Riccardo Scandroglio, Maximilian Jokel, and Michael Krautblatter
Earth Surf. Dynam., 12, 1027–1048, https://doi.org/10.5194/esurf-12-1027-2024, https://doi.org/10.5194/esurf-12-1027-2024, 2024
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Massive rock slope failures are a significant alpine hazard and change the Earth's surface. Therefore, we must understand what controls the preparation of such events. By correlating 4 years of slope displacements with meteorological and seismic data, we found that water from rain and snowmelt is the most important driver. Our approach is applicable to similar sites and indicates where future climatic changes, e.g. in rain intensity and frequency, may alter the preparation of slope failure.
Julien Coatléven and Benoit Chauveau
Earth Surf. Dynam., 12, 995–1026, https://doi.org/10.5194/esurf-12-995-2024, https://doi.org/10.5194/esurf-12-995-2024, 2024
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The aim of this paper is to explain how to incorporate classical water flow routines into landscape evolution models while keeping numerical errors under control. The key idea is to adapt filtering strategies to eliminate anomalous numerical errors and mesh dependencies, as confirmed by convergence tests with analytic solutions. The emergence of complex geomorphic structures is now driven exclusively by nonlinear heterogeneous physical processes rather than by random numerical artifacts.
Jingjuan Li, John D. Jansen, Xuanmei Fan, Zhiyong Ding, Shugang Kang, and Marco Lovati
Earth Surf. Dynam., 12, 953–971, https://doi.org/10.5194/esurf-12-953-2024, https://doi.org/10.5194/esurf-12-953-2024, 2024
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In this study, we investigated the geomorphology, sedimentology, and chronology of Tuanjie (seven terraces) and Taiping (three terraces) terraces in Diexi, eastern Tibetan Plateau. Results highlight that two damming and three outburst events occurred in the area during the late Pleistocene, and the outburst floods have been a major factor in the formation of tectonically active mountainous river terraces. Tectonic activity and climatic changes play a minor role.
Hanne Hendrickx, Xabier Blanch, Melanie Elias, Reynald Delaloye, and Anette Eltner
EGUsphere, https://doi.org/10.5194/egusphere-2024-2570, https://doi.org/10.5194/egusphere-2024-2570, 2024
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This study introduces a novel AI-based method to track and analyse the movement of rock glaciers and landslides, key indicators of permafrost dynamics in high mountain regions. Using time-lapse images, our approach provides detailed velocity data, revealing patterns that traditional methods miss. This cost-effective tool enhances our ability to monitor geohazards, offering insights into climate change impacts on permafrost and improving safety in alpine areas.
Andrew Hollyday, Maureen E. Raymo, Jacqueline Austermann, Fred Richards, Mark Hoggard, and Alessio Rovere
Earth Surf. Dynam., 12, 883–905, https://doi.org/10.5194/esurf-12-883-2024, https://doi.org/10.5194/esurf-12-883-2024, 2024
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Sea level was significantly higher during the Pliocene epoch, around 3 million years ago. The present-day elevations of shorelines that formed in the past provide a data constraint on the extent of ice sheet melt and the global sea level response under warm Pliocene conditions. In this study, we identify 10 escarpments that formed from wave-cut erosion during Pliocene times and compare their elevations with model predictions of solid Earth deformation processes to estimate past sea level.
Gregory A. Ruetenik, Ken L. Ferrier, and Odin Marc
Earth Surf. Dynam., 12, 863–881, https://doi.org/10.5194/esurf-12-863-2024, https://doi.org/10.5194/esurf-12-863-2024, 2024
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Fluvial sediment fluxes increased dramatically in Taiwan during Typhoon Morakot in 2009, which produced some of the heaviest landsliding on record. We analyzed fluvial discharge and suspended sediment concentration data at 87 gauging stations across Taiwan to quantify fluvial sediment responses since Morakot. In basins heavily impacted by landsliding, rating curve coefficients sharply increased during Morakot and then declined exponentially with a characteristic decay time of <10 years.
Nil Carrion-Bertran, Albert Falqués, Francesca Ribas, Daniel Calvete, Rinse de Swart, Ruth Durán, Candela Marco-Peretó, Marta Marcos, Angel Amores, Tim Toomey, Àngels Fernández-Mora, and Jorge Guillén
Earth Surf. Dynam., 12, 819–839, https://doi.org/10.5194/esurf-12-819-2024, https://doi.org/10.5194/esurf-12-819-2024, 2024
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The sensitivity to the wave and sea-level forcing sources in predicting a 6-month embayed beach evolution is assessed using two different morphodynamic models. After a successful model calibration using in situ data, other sources are applied. The wave source choice is critical: hindcast data provide wrong results due to an angle bias, whilst the correct dynamics are recovered with the wave conditions from an offshore buoy. The use of different sea-level sources gives no significant differences.
Thomas J. Barnes, Thomas V. Schuler, Simon Filhol, and Karianne S. Lilleøren
Earth Surf. Dynam., 12, 801–818, https://doi.org/10.5194/esurf-12-801-2024, https://doi.org/10.5194/esurf-12-801-2024, 2024
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In this paper, we use machine learning to automatically outline landforms based on their characteristics. We test several methods to identify the most accurate and then proceed to develop the most accurate to improve its accuracy further. We manage to outline landforms with 65 %–75 % accuracy, at a resolution of 10 m, thanks to high-quality/high-resolution elevation data. We find that it is possible to run this method at a country scale to quickly produce landform inventories for future studies.
Eric Petersen, Regine Hock, and Michael G. Loso
Earth Surf. Dynam., 12, 727–745, https://doi.org/10.5194/esurf-12-727-2024, https://doi.org/10.5194/esurf-12-727-2024, 2024
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Ice cliffs are melt hot spots that increase melt rates on debris-covered glaciers which otherwise see a reduction in melt rates. In this study, we show how surface runoff streams contribute to the generation, evolution, and survival of ice cliffs by carving into the glacier and transporting rocky debris. On Kennicott Glacier, Alaska, 33 % of ice cliffs are actively influenced by streams, while nearly half are within 10 m of streams.
Daniel O'Hara, Liran Goren, Roos M. J. van Wees, Benjamin Campforts, Pablo Grosse, Pierre Lahitte, Gabor Kereszturi, and Matthieu Kervyn
Earth Surf. Dynam., 12, 709–726, https://doi.org/10.5194/esurf-12-709-2024, https://doi.org/10.5194/esurf-12-709-2024, 2024
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Understanding how volcanic edifices develop drainage basins remains unexplored in landscape evolution. Using digital evolution models of volcanoes with varying ages, we quantify the geometries of their edifices and associated drainage basins through time. We find that these metrics correlate with edifice age and are thus useful indicators of a volcano’s history. We then develop a generalized model for how volcano basins develop and compare our results to basin evolution in other settings.
Brayden Noh, Omar Wani, Kieran B. J. Dunne, and Michael P. Lamb
Earth Surf. Dynam., 12, 691–708, https://doi.org/10.5194/esurf-12-691-2024, https://doi.org/10.5194/esurf-12-691-2024, 2024
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In this paper, we propose a framework for generating risk maps that provide the probabilities of erosion due to river migration. This framework uses concepts from probability theory to learn the river migration model's parameter values from satellite data while taking into account parameter uncertainty. Our analysis shows that such geomorphic risk estimation is more reliable than models that do not explicitly consider various sources of variability and uncertainty.
Steven Y. J. Lai, David Amblas, Aaron Micallef, and Hervé Capart
Earth Surf. Dynam., 12, 621–640, https://doi.org/10.5194/esurf-12-621-2024, https://doi.org/10.5194/esurf-12-621-2024, 2024
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This study explores the creation of submarine canyons and hanging-wall fans on active faults, which can be defined by gravity-dominated breaching and underflow-dominated diffusion processes. The study reveals the self-similarity in canyon–fan long profiles, uncovers Hack’s scaling relationship and proposes a formula to estimate fan volume using canyon length. This is validated by global data from source-to-sink systems, providing insights into deep-water sedimentary processes.
Cited articles
Alewell, C., Pitois, A., Meusburger, K., Ketterer, M., and Mabit, L.: 239+240Pu from “contaminant” to soil erosion tracer: Where do we stand?, Earth Sci. Rev., 172, 107–123, https://doi.org/10.1016/j.earscirev.2017.07.009, 2017.
Allmendinger, R. W. and González, G.: Invited review paper: Neogene to Quaternary tectonics of the Coastal Cordillera, Northern Chile, Tectonophysics, 495, 93–110, https://doi.org/10.1016/j.tecto.2009.04.019, 2010.
Amit, R., Gerson, R., and Yaalon, D. H.: Stages and rate of the gravel shattering process by salts in desert Reg Soils, Geoderma, 57, 295–324, https://doi.org/10.1016/0016-7061(93)90011-9, 1993.
Amundson, R.: Meteoric water alteration of soil and landscapes at Meridiani Planum, Mars, Earth Plane. Sci. Lett., 488, 155–167, https://doi.org/10.1016/j.epsl.2018.02.012, 2018.
Arens, F. L., Airo, A., Feige, J., Sager, C., Wiechert, U., and Schulze-Makuch, D.: Geochemical proxies for water-soil interactions in the hyperarid Atacama Desert, Chile, CATENA, 206, 105531, https://doi.org/10.1016/j.catena.2021.105531, 2021.
Balco, G., Stone, J. O., Lifton, N. A., and Dunai, T. J.: A complete and easily accessible means of calculating surface exposure ages or erosion rates from 10Be and 26Al measurements, Quat. Geochronol., 3, 174–195, https://doi.org/10.1016/j.quageo.2007.12.001, 2008.
Balme, M. R. and Gallagher, C.: An equatorial periglacial landscape on Mars, Earth Planet. Sci. Lett., 285, 1–15, https://doi.org/10.1016/j.epsl.2009.05.031, 2009.
Beaugnon, F., Quiligotti, S., Chevreux, S., and Wallez, G.: On the monoclinic distortion of β-anhydrite CaSO4, Solid State Sci., 108, 106399, https://doi.org/10.1016/j.solidstatesciences.2020.106399, 2020.
Benavente, D., Linares-Fernández, L., Cultrone, G., and Sebastián, E.: Influence of microstructure on the resistance to salt crystallisation damage in brick, Mater. Struct., 39, 105–113, https://doi.org/10.1617/s11527-005-9037-0, 2006.
Bishop, J. L., Quinn, R., and Dyar, M. D.: Spectral and thermal properties of perchlorate salts and implications for Mars, Am. Min., 99, 1580–1592, https://doi.org/10.2138/am.2014.4707, 2014.
Black, R. F.: Periglacial features indicative of permafrost: Ice and soil wedges, Quaternary Res., 6, 3–26, https://doi.org/10.1016/0033-5894(76)90037-5, 1976.
Bobst, A. L., Lowenstein, T. K., Jordan, T. E., Godfrey, L. V., Ku, T.-L., and Luo, S.: A 106 ka Paleoclimate record from drill core of the Salar de Atacama, Northern Chile, Palaeogeogr. Palaeoclimatol. Palaeoecol., 173, 21–42, https://doi.org/10.1016/s0031-0182(01)00308-x, 2001.
Böhm, C., Reyers, M., Knarr, L., and Crewell, S.: The role of moisture conveyor belts for precipitation in the Atacama Desert, Geophys. Res. Lett., 48, e2021GL094372., https://doi.org/10.1029/2021gl094372, 2021.
Bozkurt, D., Rondanelli, R., Garreaud, R., and Arriagada, A.: Impact of warmer Eastern Tropical Pacific SST on the March 2015 Atacama floods, Mon. Weather Rev., 144, 4441–4460, https://doi.org/10.1175/mwr-d-16-0041.1, 2016.
Buck, B. J., Rech, J. A., Howell, M. S., Prellwitz, J., and Brock, A. L.: Salt Heave: A new formation process for patterned ground, Atacama Desert, Chile, Geological Society of America Abstracts with Programs 38, no.7, 520, 2006.
Butscher, C., Scheidler, S., Farhadian, H., Dresmann, H., and Huggenberger, P.: Swelling potential of clay-sulfate rocks in tunneling in complex geological settings and impact of hydraulic measures assessed by 3D groundwater modeling, Eng. Geol., 221, 143–153, https://doi.org/10.1016/j.enggeo.2017.03.010, 2017.
Butscher, C., Breuer, S., and Blum, P.: Swelling laws for clay-sulfate rocks revisited, Bull. Eng. Geol., 77, 399–408, https://doi.org/10.1007/s10064-016-0986-z, 2018.
Cabré, A., Remy, D., Marc, O., Burrows, K., and Carretier, S.: Flash floods triggered by the 15–17th March 2022 rainstorm event in the Atacama Desert mapped from insar coherence time series, Nat. Hazards, 116, 1345–1353, https://doi.org/10.1007/s11069-022-05707-y, 2022.
Campbell-Heaton, K., Lacelle, D., and Fisher, D.: Ice wedges as winter temperature proxy: Principles, limitations and noise in the Δ18O records (an example from high Arctic Canada), Quaternary Sci. Rev., 269, 107135, https://doi.org/10.1016/j.quascirev.2021.107135, 2021.
Cereceda, P., Larrain, H., Osses, P., Farías, M., and Egaña, I.: The spatial and temporal variability of fog and its relation to fog oases in the Atacama Desert, Chile, Atmos. Res., 87, 312–323, https://doi.org/10.1016/j.atmosres.2007.11.012, 2008.
Certini, G. and Ugolini, F. C.: Nonsorted Patterned Ground, in: Encyclopedia of Planetary Landforms, edited by: Hargitai, H. and Kereszturi, Á., Springer, New York, NY, https://doi.org/10.1007/978-1-4614-3134-3_518, 2015.
Chamizo, E., García-León, M., Peruchena, J. I., Cereceda, F., Vidal, V., Pinilla, E., and Miró, C.: Presence of plutonium isotopes, 239Pu and 240Pu, in soils from Chile, Nucl. Instrum. Methods Phys. Res. B Nucl. Instrum. Meth. B., 269, 3163–3166, https://doi.org/10.1016/j.nimb.2011.04.021, 2011.
Chatterji, S. and Jeffery, J. W.: A new hypothesis of sulphate expansion, Mag. Concrete Res., 15, 83–86, https://doi.org/10.1680/macr.1964.16.49.236, 1963.
Cheng, R.-L., He, H., Michalski, J. R., and Li, Y.-L.: A new type of polygonal terrain formed by sulfate weathering in arid regions, Geomorphology, 383, 107695, https://doi.org/10.1016/j.geomorph.2021.107695, 2021.
Chukanov, N. V., Krivoveichev, S. V., Chernyatieva, A. P., Möhn, G., Pekov, I. V., Belakovskiy, D. I., Van, K. V., and Lorenz, J. A.: Vendidaite Al2(SO4)(OH)3Cl • 6H2O, a new mineral from La Vendida copper mine, Antofagasta region, Chile, Can. Mineral., 51, 559–568, https://doi.org/10.3749/canmin.51.4.559, 2013.
Clark, B. and van Hart, D. C.: The salts of Mars, Icarus, 45, 370–378, https://doi.org/10.1016/0019-1035(81)90041-5, 1981.
Cody, R. D. and Hull, A. B.: Experimental growth of primary anhydrite at low temperatures and water salinities, Geology, 8, 505–509, https://doi.org/10.1130/0091-7613(1980)8$<$505:EGOPAA$>$2.0.CO;2, 1980.
Cooke, R. U. and Warren, A.: Geomorphology in Deserts, Univ. of California Press, Berkeley, 374 pp., https://doi.org/10.1525/9780520329584, 1973.
Cosentino, N. J. and Jordan, T. E.: 87Sr/86Sr of calcium sulfate in ancient soils of hyperarid settings as a paleoaltitude proxy: Pliocene to Quaternary constraints for northern Chile (19.5–21.7° S), Tectonics, 36, 137–162, https://doi.org/10.1002/2016tc004185, 2017.
Croudace, I. W., Rindby, A., and Rothwell, R. G.: ITRAX: description and evaluation of a new multi-function X-ray core scanner, Geol. Soc. Spec. Publ., 267, 51–63, 2006.
Dang, Y., Zhang, F., Zhao, J., Wang, J., Xu, Y., Huang, T., and Xiao, L.: Diverse polygonal patterned grounds in the Northern Eridania Basin, mars: Possible origins and implications, J. Geophys. Res. Planets, 125, e2020JE006647, https://doi.org/10.1029/2020JE006647, 2020.
del Río, C., Garcia, J.-L., Osses, P., Zanetta, N., Lambert, F., Rivera, D., Siegmund, A., Wolf, N., Cereceda, P., Larraín, H., and Lobos, F.: ENSO influence on coastal fog-water yield in the Atacama Desert, Chile, Aerosol Air Qual. Res., 18, 127–144, https://doi.org/10.4209/aaqr.2017.01.0022, 2018.
de Porras, M. E., Maldonado, A., De Pol-Holz, R., Latorre, C., and Betancourt, J. L.: Late Quaternary environmental dynamics in the Atacama Desert reconstructed from rodent midden pollen records, J. Quat. Sci., 32, 665–684, https://doi.org/10.1002/jqs.2980, 2017.
Dewald, A., Heinze, S., Jolie, J., Zilges, A., Dunai, T., Rethemeyer, J., Melles, M., Staubwasser, M., Kuczewski, B., Richter, J., Radtke, U., von Blanckenburg, F., and Klein, M.: CologneAMS, a dedicated center for accelerator mass spectrometry in Germany, Nucl. Instrum. Methods Phys. Res. B Nucl. Instrum. Meth. B., 294, 18–23, https://doi.org/10.1016/j.nimb.2012.04.030, 2013a.
Dewald, A., Heinze, S., Feuerstein, C., Müller-Gatermann, C., Stolz, A., Schiffer, M., Zitzer, G., Dunai, T., Rethemeyer, J., Melles, M., Wiesel, H., and von Blanckenburg, F.: The first year of operation of CologneAMS; performance and developments, EPJ Web Conf, 63, 03006, https://doi.org/10.1051/epjconf/20136303006, 2013b.
Diederich, J. L., Wennrich, V., Bao, R., Büttner, C., Bolten, A., Brill, D., Buske, S., Campos, E., Fernández-Galego, E., Gödickmeier, P., Ninnemann, L., Reyers, M., Ritter, B., Ritterbach, L., Rolf, C., Scheidt, S., Dunai, T. J., and Melles, M.: A 68 ka precipitation record from the hyperarid core of the Atacama Desert in northern Chile, Glob. Planet. Change, 184, 103054, https://doi.org/10.1016/j.gloplacha.2019.103054, 2020.
Dunai, T. J., González López, G. A., and Juez-Larré, J.: Oligocene–Miocene age of aridity in the Atacama Desert revealed by exposure dating of erosion-sensitive landforms, Geology, 33, 321, https://doi.org/10.1130/g21184.1, 2005.
Edelman, C. H., Florschutz, F., and Jeswiet, J.: Über Spätpleistozäne und frühholozäne kryoturbate Ablagerungen in östlichen Niederlanden.Verhandelingen van het Geologisch-Mijnbouwkundig Genootschap voor Nederland en Koloniën, Geol. Ser., 11, 301–336, 1936.
Ehlmann, B. L. and Edwards, C. S.: Mineralogy of the Martian surface, Annu. Rev. Earth Planet. Sci., 42, 291–315, https://doi.org/10.1146/annurev-earth-060313-055024, 2014.
Ericksen, A. G. E.: Geology and Origin of the Chilean Nitrate Deposits, Geological Survey Professional Paper, 1188, 37 pp., https://doi.org/10.3133/pp1188, 1981.
Ericksen, A. G. E.: The Chilean Nitrate Deposits: The origin of the Chilean nitrate deposits, which contain a unique group of saline minerals, has provoked lively discussion for more than 100 years, Am. Sci., 71, 366–374, 1983.
Evenstar, L. A., Hartley, A. J., Stuart, F. M., Mather, A. E., Rice, C. M., and Chong, G.: Multiphase development of the Atacama planation surface recorded by cosmogenic 3He exposure ages: Implications for uplift and Cenozoic climate change in western South America, Geology, 37, 27–30, https://doi.org/10.1130/g25437a.1, 2009.
Evenstar, L. A., Mather, A. E., Hartley, A. J., Stuart, F. M., Sparks, R. S. J., and Cooper, F. J.: Geomorphology on geologic timescales: Evolution of the Late Cenozoic pacific paleosurface in northern Chile and Southern Peru, Earth-Sci. Rev., 171, 1–27, https://doi.org/10.1016/j.earscirev.2017.04.004, 2017.
Ewing, S. A., Sutter, B., Owen, J., Nishiizumi, K., Sharp, W., Cliff, S. S., Perry, K., Dietrich, W., McKay, C. P., and Amundson, R.: A threshold in soil formation at Earth's arid–hyperarid transition, Geochim. Cosmochim. Acta, 70, 5293–5322, https://doi.org/10.1016/j.gca.2006.08.020, 2006.
Farías, M., Charrier, R., Comte, D., Martinod, J., and Hérail, G.: Late Cenozoic deformation and uplift of the western flank of the Altiplano: evidence from the depositional, tectonic, and geomorphologic evolution and shallow seismic activity (northern Chile at 19°30′ S), Tectonics, 24, TC4001, https://doi.org/10.1029/2004TC001667, 2005.
Finstad, K., Pfeiffer, M., McNicol, G., Barnes, J., Demergasso, C., Chong, G., and Amundson, R.: Rates and geochemical processes of soil and salt crust formation in Salars of the Atacama Desert, Chile, Geoderma, 284, 57–72, https://doi.org/10.1016/j.geoderma.2016.08.020, 2016.
Flatt, R. J., Caruso, F., Sanchez, A. M., and Scherer, G. W.: Chemo-mechanics of salt damage in stone, Nat. Commun., 5, 4823, https://doi.org/10.1038/ncomms5823, 2014.
Fookes, P. G. and Lee, E. M.: Salt Weathering and Haloturbation, in: Geology for Engineers, CRC Press, 345–367, https://doi.org/10.1201/9780203740784, 2018.
Garreaud, R. D., Vuille, M., Compagnucci, R., and Marengo, J.: Present-day South American climate, Palaeogeogr. Palaeoclimatol. Palaeoecol., 281, 180–195, https://doi.org/10.1016/j.palaeo.2007.10.032, 2009.
Gendrin, A., Mangold, N., Bibring, J.-P., Langevin, Y., Gondet, B., Poulet, F., Bonello, G., Quantin, C., Mustard, J., Arvidson, R., and Lemouélic, S.: Sulfates in Martian Layered Terrains: The OMEGA/Mars Express View, Science, 307, 1587–1591, https://doi/10.1126/science.1109087, 2005.
Hanley, J., Chevrier, V. F., Berget, D. J., and Adams, R. D.: Chlorate salts and solutions on Mars, Geohys. Res. Lett., 39, L08201, https://doi.org/10.1029/2012gl051239, 2012.
Hardie, L. A.: The gypsum-anhydrite equilibrium at one atmosphere pressure, Amer. Mineral., 52, 171–200, 1967.
Hartley, A. J. and Evenstar, L.: Cenozoic stratigraphic development in the North Chilean forearc: Implications for basin development and uplift history of the Central Andean Margin, Tectonophysics, 495, 67–77, https://doi.org/10.1016/j.tecto.2009.05.013, 2010.
Hartley, A. J. and May, G.: Miocene gypcretes from the Calama Basin, Northern Chile, Sedimentology, 45, 351–364, https://doi.org/10.1046/j.1365-3091.1998.0166e.x, 1998.
Hauber, E., Reiss, D., Ulrich, M., Preusker, F., Trauthan, F., Zanetti, M., Hiesinger, H., Jaumann, R., Johansson, L., Johnsson, A., Van Gasselt, S., and Olvmo, M.: Landscape evolution in Martian mid-latitude regions: Insights from analogous periglacial landforms in Svalbard, Geol. Soc. Spec. Publ., 356, 111–131, https://doi.org/10.1144/sp356.7, 2011.
Houston, J.: Variability of precipitation in the Atacama Desert: Its causes and hydrological impact, Int. J. Climate, 26, 2181–2198, https://doi.org/10.1002/joc.1359, 2006.
Howell, M. S.: Mineralogy and micromorphology of an Atacama Desert soil, Chile: A model for hyperarid pedogenesis, Master's thesis, UNLV Theses, Dissertations, Professional Papers, and Capstones 52, https://doi.org/10.34870/1363798, 2009.
Howell, M. S., Buck, B. J., Rech, J. A., Brock, A. L., and Prellwitz, J.: Genesis of the Hyperarid Soils of the Atacama Desert: Analogue for Mars?, 18th World Congress of Soil Science, Philadelphia, Pennsylvania, 2006.
Jarzyna, A., Bąbel, M., Ługowski, D., and Vladi, F.: Petrographic record and conditions of expansive hydration of anhydrite in the recent weathering zone at the abandoned Dingwall Gypsum Quarry, Nova Scotia, Canada, Minerals, 12, 58, https://doi.org/10.3390/min12010058, 2021.
Joeckel, R. M., Wally, K. D., Ang Clement, B. J., Hanson, P. R., Dillon, J. S., and Wilson, S. K.: Secondary minerals from extrapedogenic per latus acidic weathering environments at geomorphic edges, Eastern Nebraska, USA, Catena, 85, 253–266, https://doi.org/10.1016/j.catena.2011.01.01, 2011.
Jordan, T. E., Kirk-Lawlor, N. E., Blanco, N. P., Rech, J. A., and Cosentino, N. J.: Landscape modification in response to repeated onset of hyperarid paleoclimate states since 14 Ma, Atacama Desert, Chile, Geol. Soc. Am. Bull., 126, 1016–1046, https://doi.org/10.1130/b30978.1, 2014.
Jordan, T. E., Herrera L., C., Godfrey, L. V., Colucci, S. J., Gamboa P., C., Urrutia M., J., González L., G., and Paul, J. F.: Isotopic characteristics and paleoclimate implications of the extreme precipitation event of March 2015 in Northern Chile, Andean Geol., 46, 1, https://doi.org/10.5027/andgeov46n1-3087, 2019.
Kelley, J. M., Bond, L. A., and Beasley, T. M.: Global distribution of Pu isotopes and 237Np, Sci. Total Environ., 237–238, 483–500, https://doi.org/10.1016/s0048-9697(99)00160-6, 1999.
Kessler, M. A. and Werner, B. T.: Self-organization of sorted patterned ground, Science, 299, 380–383, https://doi.org/10.1126/science.1077309, 2003.
Kober, F., Ivy-Ochs, S., Schlunegger, F., Baur, H., Kubik, P. W., and Wieler, R.: Denudation rates and a topography-driven rainfall threshold in northern Chile: Multiple cosmogenic nuclide data and sediment yield budgets, Geomorphology, 83, 97–120, https://doi.org/10.1016/j.geomorph.2006.06.029, 2007.
Kohl, C. P. and Nishiizumi, K.: Chemical isolation of quartz for measurement of in-situ -produced cosmogenic nuclides, Geochim. Cosmochim. Acta, 56, 3583–3587, https://doi.org/10.1016/0016-7037(92)90401-4, 1992.
Lachenbruch, A. H.: Mechanics of thermal contraction cracks and ice-wedge polygons in permafrost. Geol. Soc. Am. Spec. Pap., 70, 1–69, https://doi.org/10.1130/SPE70, 1962.
Lal, D.: Cosmic Ray labeling of erosion surfaces: In situ nuclide production rates and erosion models, Earth Planet. Sci. Lett., 104, 424–439, https://doi.org/10.1016/0012-821x(91)90220-c, 1991.
Latorre, C., González, A. L., Quade, J., Fariña, J. M., Pinto, R., and Marquet, P. A.: Establishment and formation of fog-dependent tillandsia landbecki i dunes in the Atacama Desert: Evidence from radiocarbon and stable isotopes, J. Geophys. Res.-Biogeosci., 116, 1–11, https://doi.org/10.1029/2010jg001521, 2011.
Lehmann, S. B.: Climatic and Tectonic Implications of a mid-Miocene Landscape: Examination of the Tarapaca Pediplain, Atacama Desert, Chile, Master’s thesis, Miami University, OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1375486991 (last access: 2 August 2023), 2013.
Levy, J., Head, J., and Marchant, D.: Thermal contraction crack polygons on Mars: Classification, distribution, and climate implications from HiRISE Observations, J. Geophys. Res., 114, E01007, https://doi.org/10.1029/2008je003273, 2009.
Levy, J., Head, J. W., and Marchant, D. R.: Concentric crater fill in the northern mid-latitudes of Mars: Formation processes and relationships to similar landforms of glacial origin, Icarus, 209, 390–404, https://doi.org/10.1016/j.icarus.2010.03.036, 2010.
Lifton, N., Sato, T., and Dunai, T. J.: Scaling in situ cosmogenic nuclide production rates using analytical approximations to atmospheric cosmic-ray fluxes, Earth Planet. Sci. Lett., 386, 149–160, https://doi.org/10.1016/j.epsl.2013.10.052, 2014.
Liu, X.-J. and Lai, Z.-P.: Optical dating of sand wedges and ice-wedge casts from Qinghai Lake area on the northeastern Qinghai-Tibetan Plateau and its palaeoenvironmental implications, Boreas, 42, 333–341, https://doi.org/10.1111/j.1502-3885.2012.00288.x, 2013.
Mackay, J. R.: Some observations on the growth and deformation of epigenetic, Syngenetic and anti-syngenetic ice wedges, Permafr. Periglac. Process., 1, 15–29, https://doi.org/10.1002/ppp.3430010104, 1990.
Mangold, N.: High latitude patterned grounds on Mars: Classification, distribution and Climatic Control, Icarus, 174, 336–359, https://doi.org/10.1016/j.icarus.2004.07.030, 2005.
Mangold, N., Maurice, S., Feldman, W. C., Costard, F., and Forget, F.: Spatial relationships between patterned ground and ground ice detected by the Neutron Spectrometer on Mars, J. Geophys. Res., 109, E08001., https://doi.org/10.1029/2004je002235, 2004.
May, S. M., Hoffmeister, D., Wolf, D., and Bubenzer, O.: Zebra stripes in the Atacama Desert revisited – Granular fingering as a mechanism for zebra stripe formation?, Geomorphology, 344, 46–59, https://doi.org/10.1016/j.geomorph.2019.07.014, 2019.
Medialdea, A., May, S. M., Brill, D., King, G., Ritter, B., Wennrich, V., Bartz, M., Zander, A., Kuiper, K., Hurtado, S., Hoffmeister, D., Schulte, P., Gröbner, M., Opitz, S., Brückner, H., and Bubenzer, O.: Identification of humid periods in the Atacama Desert through hillslope activity established by infrared stimulated luminescence (IRSL) dating, Glob. Planet. Change, 185, 103086, https://doi.org/10.1016/j.gloplacha.2019.103086, 2020.
Michalski, G., Böhlke, J. K., and Thiemens, M.: Long term atmospheric deposition as the source of nitrate and other salts in the Atacama Desert, Chile: New evidence from mass-independent oxygen isotopic compositions, Geochim. Cosmochim. Acta, 68, 4023–4038, https://doi.org/10.1016/j.gca.2004.04.009, 2004.
Milsch, H., Priegnitz, M., and Blöcher, G.: Permeability of gypsum samples dehydrated in Air, Geophys. Res. Lett., 38, L18304, https://doi.org/10.1029/2011gl048797, 2011.
Mohren, J., Binnie, S. A., Ritter, B., and Dunai, T. J.: Development of a steep erosional gradient over a short distance in the hyperarid core of the Atacama Desert, northern Chile, Glob. Planet. Change, 184, 995–1020, https://doi.org/10.1016/j.gloplacha.2019.103068, 2020.
Mörchen, R., Amelung, W., Giese, C., Böhnert, T., Ruhm, J., and Lehndorff, E.: Fingerprint of plant life in the Atacama Desert – insights from n-alkane analyses, Org. Geochem., 151, 104145, https://doi.org/10.1016/j.orggeochem.2020.104145, 2021.
Mossop, G. D. and Shearman, D. J.: Origins of secondary gypsum, Trans. Inst. Mining, Metal. 82, 147–154, 1973.
Muñoz, N. and Sepúlveda, S. A.: Estructuras compresivas con vergencia al oeste en el borde oriental de la Depresión Central, Norte de Chile (19°15′ S), Rev. Geol. Chile, 19, 241–247, https://doi.org/10.5027/andgeoV44n2-a01, 1992.
Muñoz, R. C., Quintana, J., Falvey, M. J., Rutllant, J. A., and Garreaud, R.: Coastal clouds at the eastern margin of the Southeast Pacific: Climatology and trends, J. Climate, 29, 4525–4542, https://doi.org/10.1175/jcli-d-15-0757.1, 2016.
Neal, J. T., Langer, A. M., and Kerr, P. F.: Giant desiccation polygons of Great Basin Playas, Geol. Soc. Am. Bull. 79, 69–90, https://doi.org/10.1130/0016-7606(1968)79[69:GDPOGB]2.0.CO;2, 1968.
Nishiizumi, K., Caffee, M. W., Finkel, R. C., Brimhall, G., and Mote, T.: Remnants of a fossil alluvial fan landscape of Miocene age in the Atacama Desert of northern Chile using cosmogenic nuclide exposure age dating, Earth Planet. Sci. Lett., 237, 499–507, https://doi.org/10.1016/j.epsl.2005.05.032, 2005.
Opel, T., Meyer, H., Wetterich, S., Laepple, T., Dereviagin, A., and Murton, J.: Ice wedges as archives of winter paleoclimate: A Review, Permafr. Periglac. Process., 29, 199–209, https://doi.org/10.1002/ppp.1980, 2018.
Osterloo, M. M., Hamilton, V. E., Bandfield, J. L., Glotch, T. D., Baldridge A. M., Christensen, P. R., Tornabene, L. L., and Anderson, F. S.: Chloride-bearing materials in the Southern Highlands of Mars, Science, 319, 1651–1654, https://doi.org/10.1126/science.115069, 2008.
Pfeiffer, M., Morgan, A., Heimsath, A., Jordan, T., Howard, A., and Amundson, R.: Century scale rainfall in the absolute Atacama Desert: Landscape response and implications for past and future rainfall, Quaternary Sci. Rev., 254, 106797, https://doi.org/10.1016/j.quascirev.2021.106797, 2021.
Placzek, C., Granger, D. E., Matmon, A., Quade, J., and Ryb, U.: Geomorphic process rates in the central Atacama Desert, Chile: Insights from cosmogenic nuclides and implications for the onset of hyperaridity, Am. J. Sci., 314, 1462–1512, https://doi.org/10.2475/10.2014.03, 2014.
Placzek, C. J., Matmon, A., Granger, D. E., Quade, J., and Niedermann, S.: Evidence for active landscape evolution in the hyperarid atacama from multiple terrestrial cosmogenic nuclides, Earth Planet. Sci. Lett., 295, 12–20, https://doi.org/10.1016/j.epsl.2010.03.006, 2010.
Rapin, W., Dromart, G., Clark, B. C., Schieber, J., Kite, E. S., Kah, L. C., Thompson, L. M., Gasnault, O., Lasue, J., Meslin, P.-Y., Gasda, P. J., and Lanza, N. L.: Sustained wet–dry cycling on early Mars, Nature, 620, 299–302, https://doi.org/10.1038/s41586-023-06220-3, 2023.
Rech, J. A., Quade, J., and Hart, W. S.: Isotopic evidence for the source of Ca and s in soil gypsum, anhydrite and calcite in the Atacama Desert, Chile, Geochim. Cosmochim. Acta, 67, 575–586, https://doi.org/10.1016/s0016-7037(02)01175-4, 2003.
Rech, J. A., Currie, B. S., Michalski, G., and Cowan, A. M.: Neogene climate change and uplift in the Atacama Desert, Chile, Geology, 34, 761, https://doi.org/10.1130/g22444.1, 2006.
Rech, J. A., Currie, B. S., Jordan, T. E., Riquelme, R., Lehmann, S. B., Kirk-Lawlor, N. E., Li, S., and Gooley, J. T.: Massive Middle Miocene Gypsic Paleosols in the Atacama Desert and the formation of the Central Andean rain-shadow, Earth Planet. Sci. Lett., 506, 184–194, https://doi.org/10.1016/j.epsl.2018.10.040, 2019.
Reyers, M., Boehm, C., Knarr, L., Shao, Y., and Crewell, S.: Synoptic-to-regional-scale analysis of rainfall in the Atacama Desert (18–26° S) using a long-term simulation with WRF, Mon. Weather Rev., 149, 91–112, https://doi.org/10.1175/mwr-d-20-0038.1, 2021.
Ritter, B., Stuart, F. M., Binnie, S. A., Gerdes, A., Wennrich, V., and Dunai, T. J.: Neogene fluvial landscape evolution in the hyperarid core of the Atacama Desert, Sci. Rep., 8, 13952, https://doi.org/10.1038/s41598-018-32339-9, 2018.
Ritter, B., Wennrich, V., Medialdea, A., Brill, D., King, G., Schneiderwind, S., Niemann, K., Fernández-Galego, E., Diederich, J., Rolf, C., Bao, R., Melles, M., and Dunai, T. J.: Climatic fluctuations in the hyperarid core of the Atacama Desert during the past 215 ka, Sci. Rep., 9, 5270, https://doi.org/10.1038/s41598-019-41743-8, 2019.
Ritter, B., Vogt, A., and Dunai, T. J.: Technical Note: Noble gas extraction procedure and performance of the Cologne Helix MC Plus multi-collector noble gas mass spectrometer for cosmogenic neon isotope analysis, Geochronology, 3, 421–431, https://doi.org/10.5194/gchron-3-421-2021, 2021.
Ritter, B., Diederich-Leicher, J. L., Binnie, S. A., Stuart, F. M., Wennrich, V., Bolten, A., and Dunai, T. J.: Impact of CaSO4-rich soil on Miocene surface preservation and Quaternary sinuous to meandering channel forms in the hyperarid Atacama Desert, Sci. Rep., 12, 17951, https://doi.org/10.1038/s41598-022-22787-9, 2022.
Ritter, B., Mohren, J., Binnie, S. A., Wennrich, V., Dunkl, I., Albert, R., Gerdes, A., LoBue, S., and Dunai, T. J.: Shaping the Huara Intrusive Complex in the Hyperarid Atacama Desert–Erosional Near-Stasis Contrasting High Topographic Gradients, J. Geophys. Res.-Earth Surf., 128, e2022JF006986, https://doi.org/10.1029/2022JF006986, 2023.
Ritterbach, L. and Becker, P.: Temperature and humidity dependent formation of CaSO4 • XH2O (x = 0...2) phases, Glob. Planet. Change, 187, 103132, https://doi.org/10.1016/j.gloplacha.2020.103132, 2020.
Rodriguez-Navarro, C. and Doehne, E.: Salt weathering: influence of evaporation rate, supersaturation and crystallization pattern, Earth Surf. Process. Landf. 24, 191–209, https://doi.org/10.1002/(SICI)1096-9837(199903)24:3<191::AID-ESP942>3.0.CO;2-G, 1999.
Rychliński, T., Jaglarz, P., Uchman, A., and Vainorius, J., Unusually well preserved casts of halite crystals: A case from the Upper Frasnian of northern Lithuania, Sediment. Geol., 308, 44–52, https://doi.org/10.1016/j.sedgeo.2014.05.005, 2014.
Sager, C., Airo, A., Arens, F. L., and Schulze-Makuch, D.: New type of sand wedge polygons in the salt cemented soils of the hyper-arid Atacama Desert, Geomorphology, 373, 107481, https://doi.org/10.1016/j.geomorph.2020.107481, 2021.
Sager, C., Airo, A., Arens, F. L., and Schulze-Makuch, D.: Eolian erosion of polygons in the Atacama Desert as a proxy for hyper-arid environments on Earth and beyond, Sci. Rep., 12, 12394, https://doi.org/10.1038/s41598-022-16404-y, 2022.
Sager, C., Airo, A., Mangelsdorf, K., Arens, F. L., Karger, C., and Schulze-Makuch, D.: Habitability of Polygonal Soils in the Hyper-Arid Atacama Desert After a Simulated Rain Experiment, J. Geophys. Res.-Biogeosci., 128, e2022JG00732, https://doi.org/10.1029/2022JG007328, 2023.
Sanzeni, A., Colleselli, F., Crippa, F., and Merlini, M.: On the swelling behaviour of weak rocks due to gypsum crystallization, Procedia Eng., 158, 128–133, https://doi.org/10.1016/j.proeng.2016.08.417, 2016.
Schiro, M., Ruiz-Agudo, E., and Rodriguez-Navarro, C.: Damage mechanisms of porous materials due to in-pore salt crystallization, PRL, 109, 265503, https://doi.org/10.1103/physrevlett.109.265503, 2012.
Schween, J. H., Hoffmeister, D., and Löhnert, U.: Filling the observational gap in the Atacama Desert with a new network of climate stations, Glob. Planet. Change, 184, 103034, https://doi.org/10.1016/j.gloplacha.2019.103034, 2020.
Shi, E., Wang, A., Li, H., Ogliore, R., and Ling, Z.: Gamma-CaSO4 With Abnormally High Stability From a Hyperarid Region on Earth and From Mars, J. Geophys. Res.-Planets, 127, e2021JE007108, https://doi.org/10.1029/2021JE007108, 2022.
Smith, D. B.: Possible displacive halite in the Permian Upper Evaporite Group of northeast Yorkshire, Sedimentology, 17, 221–232, https://doi.org/10.1111/j.1365-3091.1971.tb00352.x, 1971.
Soare, R. J., Conway, S. J., and Dohm, J. M.: Possible ice-wedge polygons and recent landscape modification by “wet” periglacial processes in and around the Argyre impact basin, Mars, Icarus, 233, 214–228, https://doi.org/10.1016/j.icarus.2014.01.034, 2014.
Starke, J., Ehlers, T. A., and Schaller, M.: Tectonic and climatic controls on the spatial distribution of denudation rates in northern Chile (18° S to 23° S) determined from cosmogenic nuclides, J. Geophys. Res., 122, 1949–1971, https://doi.org/10.1002/2016jf004153, 2017.
Stone, J. O.: Air pressure and cosmogenic isotope production, J. Geophys. Res., 105, 23753–23759, https://doi.org/10.1029/2000jb900181, 2000.
Stuut, J.-B. W. and Lamy, F.: Climate variability at the southern boundaries of the Namib (southwestern Africa) and Atacama (northern Chile) coastal deserts during the last 120,000 yr., Quaternary Res., 62, 301–309, https://doi.org/10.1016/j.yqres.2004.08.001, 2004.
Tang, Y., Gao, J., Liu, C., Chen, X., and Zhao, Y.: Dehydration pathways of gypsum and the rehydration mechanism of soluble anhydrite γ-CaSO4, ACS Omega, 4, 7636–7642, https://doi.org/10.1021/acsomega.8b03476, 2019.
Tucker, R. M.: Giant polygons in the Triassic salt of Cheshire, England. A thermal contraction model for their origin, J. Sediment. Res., 51, 779–786, https://doi.org/10.1306/212F7DA6-2B24-11D7-8648000102C1865D, 1981.
Vaniman, D. T., Martínez, G. M., Rampe, E. B., Bristow, T. F., Blake, D. F., Yen, A. S., Ming, D. W., Rapin, W., Meslin, P.-Y., Morookian, J. M., Downs, R. T., Chipera, S. J., Morris, R. V., Morrison, S. M., Treiman, A. H., Achilles, C. N., Robertson, K., Grotzinger, J. P., Hazen, R. M., Wiens, R. C., and Sumner, D. Y.: Gypsum, bassanite, and anhydrite at Gale Crater, Mars, Am. Min., 103, 1011–1020, https://doi.org/10.2138/am-2018-6346, 2018.
Vicencio Veloso, J. M.: Analysis of an extreme precipitation event in the Atacama Desert on January 2020 and its relationship to humidity advection along the Southeast Pacific, Atmósfera, https://doi.org/10.20937/atm.52911, 2022.
Voigt, C., Klipsch, S., Herwartz, D., Chong, G., and Staubwasser, M.: The spatial distribution of soluble salts in the surface soil of the Atacama Desert and their relationship to hyperaridity, Glob. Planet. Change, 184, 103077, https://doi.org/10.1016/j.gloplacha.2019.103077, 2020.
von Rotz, R., Schlunegger, F., Heller, F., and Villa, I.: Assessing the age of relief growth in the Andes of northern Chile: Magneto-polarity chronologies from Neogene continental sections, Terra Nova, 17, 462–471, https://doi.org/10.1111/j.1365-3121.2005.00634.x, 2005.
Waele, J. D., Carbone, C., Sanna, L., Vattano, M., Galli, E., Sauro, F., and Forti, P.: Secondary minerals from salt caves in the Atacama Desert (Chile): a hyperarid and hypersaline environment with potential analogies to the Martian subsurface, J. Arid Environ., 147, 21–33, https://doi.org/10.1016/j.jaridenv.2017.06.002, 2017.
Wang, F., Michalski, G., Seo, J., and Ge, W.: Geochemical, isotopic, and mineralogical constraints on atmospheric deposition in the hyper-arid Atacama Desert, Chile, Geochim. Cosmochim. Acta, 135, 29–48, https://doi.org/10.1016/j.gca.2014.03.017, 2014.
Wang, F., Michalski, G., Seo, J.-H., Granger, D. E., Lifton, N., and Caffee, M.: Beryllium-10 concentrations in the hyper-arid soils in the Atacama Desert, Chile: Implications for arid soil formation rates and El Niño driven changes in Pliocene precipitation, Geochim. Cosmochim. Acta, 160, 227–242, https://doi.org/10.1016/j.gca.2015.03.008, 2015.
Warren, J. K.: Evaporites: A Geological Compendium, Springer International Publishing, Cham, https://doi.org/10.1007/978-3-319-13512-0, 2016.
Washburn, A. L.: Classification of patterned ground and review of suggested origins, Geol. Soc. Am. Bull., 67, 823–865, https://doi.org/10.1177/0309133312438909, 1956.
Washburn, A. L.: Geocryology. A Survey of Periglacial Processes and Environments. ix + 406 pp., numerous illustrations, London: Edward Arnold, ISBN 0713161191, 1979.
Wehmann, N., Lenting, C., and Jahn, S.: Calcium sulfates in planetary surface environments, Glob. Planet. Change, 230, 104257, https://doi.org/10.1016/j.gloplacha.2023.104257, 2023.
Wells, S. G., McFadden, L. D., Poths, J., and Olinger, C. T.: Cosmogenic 3He surface-exposure dating of stone pavements: Implications for landscape evolution in deserts, Geology, 23, 613–616, https://doi.org/10.1130/0091-7613(1995)023<0613:CHSEDO>2.3.CO;2, 1995.
Wennrich, V., Böhm, C., Brill, D., Carballeira, R., Hoffmeister, D., Jaeschke, A., Kerber, F., Maldonado, A., May, S. M., Olivares, L., Opitz, S., Rethemeyer, J., Reyers, M., Ritter, B., Schween, J. H., Sevinç, F., Steiner, J., Walber-Hellmann, K., and Melles, M.: Late Pleistocene to modern precipitation changes at the Paranal Clay Pan, central Atacama Desert, Glob. Planet. Change, 233, 104349, https://doi.org/10.1016/j.gloplacha.2023.104349, 2024.
Wierzchos, J., Cámara, B., de Los Ríos, A., Davila, A. F., Sánchez Almazo, I. M., Artieda, O., Wierzchos, K., Gómez-Silva, B., McKay, C., and Ascaso, C.: Microbial colonization of Ca-sulfate crusts in the hyperarid core of the Atacama Desert: implications for the search for life on Mars, FEMS Microbiol. Ecol., 73, 1–9, https://doi.org/10.1111/j.1472-4669.2010.00254.x, 2010.
Williams, G. E.: Precambrian permafrost horizons as indicators of Palaeoclimate, Precambrian Res., 32, 233–242, https://doi.org/10.1016/0301-9268(86)90008-2, 1986.
Winkler, E. M. and Singer, P.: Crystallisation pressure of salts in stone and concrete, Geol. Soc. Am. Bull., 83, 3509–3514, https://doi.org/10.1130/0016-7606(1972)83[3509:CPOSIS]2.0.CO;2, 1972.
Zhu, J., Wu, B., Zhao, T., and Li, Y.: Polygons with halite-crusted floors and gypsum-raised rims in western Qaidam Basin and implications for polygonal landforms on Mars, Geomorphology, 443, 108934, https://doi.org/10.1016/j.geomorph.2023.108934, 2023.
Zinelabedin, A., Riedesel, S., Reimann, T., Ritter, B., and Dunai, T. J.: Testing the potential of using coarse-grain feldspars for post-IR IRSL dating of calcium sulphate-wedge growth in the Atacama Desert, Quat. Geochronol., 71, 101341, https://doi.org/10.1016/j.quageo.2022.101341, 2022.
Short summary
In order to interpret the formation processes of subsurface salt wedges and polygonal patterned grounds from the northern Atacama Desert, we present a multi-methodological approach. Due to the high salt content of the wedges, we suggest that their formation is dominated by subsurface salt dynamics requiring moisture. We assume that the climatic conditions during the wedge growth were slightly wetter than today, offering the potential to use the wedges as palaeoclimate archives.
In order to interpret the formation processes of subsurface salt wedges and polygonal patterned...
