Articles | Volume 8, issue 3
https://doi.org/10.5194/esurf-8-637-2020
© Author(s) 2020. 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-8-637-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Jul 2020
Research article |
| 17 Jul 2020
The role of frost cracking in local denudation of steep Alpine rockwalls over millennia (Eiger, Switzerland)
Institute of Geological Sciences, University of Bern, Bern, 3012,
Switzerland
Alessandro Lechmann
Institute of Geological Sciences, University of Bern, Bern, 3012,
Switzerland
Romain Delunel
Institute of Geological Sciences, University of Bern, Bern, 3012,
Switzerland
Serdar Yeşilyurt
Institute of Geological Sciences, University of Bern, Bern, 3012,
Switzerland
Department of Geography, Ankara University, Ankara, 06100, Turkey
Dmitry Tikhomirov
Institute of Geological Sciences, University of Bern, Bern, 3012,
Switzerland
Department of Geography, University of Zurich, Zurich, 8057,
Switzerland
Christof Vockenhuber
Laboratory of Ion Beam Physics, ETH Zurich, Zurich, 8093, Switzerland
Marcus Christl
Laboratory of Ion Beam Physics, ETH Zurich, Zurich, 8093, Switzerland
Naki Akçar
Institute of Geological Sciences, University of Bern, Bern, 3012,
Switzerland
Fritz Schlunegger
Institute of Geological Sciences, University of Bern, Bern, 3012,
Switzerland
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Atlantic Water that carries heat and anthropogenic carbon into the Arctic Ocean plays an important role in the Arctic sea-ice cover decline, but its pathways and travel times remain unclear. Here we used two radionuclides of anthropogenic origin (129I and 236U) to track Atlantic-derived waters along their way through the Arctic Ocean, estimating their travel times and mixing properties. Results help to understand how future changes in Atlantic Water properties will spread through the Arctic.
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Orakei Basin – a former maar lake in Auckland, New Zealand – provides an outstanding sediment record over the last ca. 130 000 years, but an age model is required to allow the reconstruction of climate change and volcanic eruptions contained in the sequence. To construct a relationship between depth in the sediment core and age of deposition, we combined tephrochronology, radiocarbon dating, luminescence dating, and the relative intensity of the paleomagnetic field in a Bayesian age–depth model.
Owen A. Anfinson, Daniel F. Stockli, Joseph C. Miller, Andreas Möller, and Fritz Schlunegger
Solid Earth, 11, 2197–2220, https://doi.org/10.5194/se-11-2197-2020, https://doi.org/10.5194/se-11-2197-2020, 2020
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We present new U–Pb age data to provide insights into the source of sediment for the Molasse Sedimentary Basin in Switzerland. The paper aims to help shed light on the processes that built the Central Alpine Mountains between ~35 and ~15 Ma. A primary conclusion drawn from the results is that at ~21 Ma there was a significant change in the sediment sources for the basin. We feel this change indicates major tectonic changes within the Central Alps.
Samuel Mock, Christoph von Hagke, Fritz Schlunegger, István Dunkl, and Marco Herwegh
Solid Earth, 11, 1823–1847, https://doi.org/10.5194/se-11-1823-2020, https://doi.org/10.5194/se-11-1823-2020, 2020
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Based on thermochronological data, we infer thrusting along-strike the northern rim of the Central Alps between 12–4 Ma. While the lithology influences the pattern of thrusting at the local scale, we observe that thrusting in the foreland is a long-wavelength feature occurring between Lake Geneva and Salzburg. This coincides with the geometry and dynamics of the attached lithospheric slab at depth. Thus, thrusting in the foreland is at least partly linked to changes in slab dynamics.
Marius L. Huber, Maarten Lupker, Sean F. Gallen, Marcus Christl, and Ananta P. Gajurel
Earth Surf. Dynam., 8, 769–787, https://doi.org/10.5194/esurf-8-769-2020, https://doi.org/10.5194/esurf-8-769-2020, 2020
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Large boulders found in two Himalayan valleys show signs of long fluvial transport (>10 km). Paleo-discharges required to mobilize these boulders exceed typical monsoon discharges. Exposure dating shows that a cluster of these boulders was emplaced ca. 5 kyr ago. This period is coeval with a weakening of the Indian monsoon and glacier retreat in the area. We, therefore, suggest that glacier lake outburst floods are likely mechanisms that can explain these exceptional transport processes.
Fritz Schlunegger, Romain Delunel, and Philippos Garefalakis
Earth Surf. Dynam., 8, 717–728, https://doi.org/10.5194/esurf-8-717-2020, https://doi.org/10.5194/esurf-8-717-2020, 2020
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We calculated the probability of sediment transport in coarse-grained mountainous streams in the Alps and the Andes where data on water discharge is available. We find a positive correlation between the predicted probability of sediment transport and the grain size sorting of the bed material. We suggest that besides sediment discharge, the bedload sorting exerts a significant influence on the mobility of sediment and thus on the stability of gravel bars in mountainous streams.
Sandro Rossato, Susan Ivy-Ochs, Silvana Martin, Alfio Viganò, Christof Vockenhuber, Manuel Rigo, Giovanni Monegato, Marco De Zorzi, Nicola Surian, Paolo Campedel, and Paolo Mozzi
Nat. Hazards Earth Syst. Sci., 20, 2157–2174, https://doi.org/10.5194/nhess-20-2157-2020, https://doi.org/10.5194/nhess-20-2157-2020, 2020
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Rock avalanches are extremely dangerous, causing much damage worldwide. The
Masiere di Vedanais a rock avalanche deposit (9 km2, 170 Mm3) in NE Italy. We dated it back to late Roman to early Middle Ages. Identified drivers are the overall structural setting, exceptional rainfall events and seismic shakings. No exceptional event is required as a trigger. When dealing with heavily deformed bedrocks, especially in inhabited areas, the occurrence of a huge event like this must be considered.
Philippos Garefalakis and Fritz Schlunegger
Solid Earth, 10, 2045–2072, https://doi.org/10.5194/se-10-2045-2019, https://doi.org/10.5194/se-10-2045-2019, 2019
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The controls on the 20 Myr old Burdigalian transgression in the Swiss Molasse basin have been related to a reduction in sediment flux, a rise in global sea level, or tectonic processes in the adjacent Alps. Here, we readdress this problem and extract stratigraphic signals from the Upper Marine Molasse deposits in Switzerland. In conclusion, we consider rollback tectonics to be the main driving force controlling the transgression, which is related to a deepening and widening of the basin.
François Clapuyt, Veerle Vanacker, Marcus Christl, Kristof Van Oost, and Fritz Schlunegger
Solid Earth, 10, 1489–1503, https://doi.org/10.5194/se-10-1489-2019, https://doi.org/10.5194/se-10-1489-2019, 2019
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Using state-of-the-art geomorphic techniques, we quantified a 2-order of magnitude discrepancy between annual, decadal, and millennial sediment fluxes of a landslide-affected mountainous river catchment in the Swiss Alps. Our results illustrate that the impact of a single sediment pulse is strongly attenuated at larger spatial and temporal scales by sediment transport. The accumulation of multiple sediment pulses has rather a measurable impact on the regional pattern of sediment fluxes.
Samuel Mock, Christoph von Hagke, Fritz Schlunegger, István Dunkl, and Marco Herwegh
Solid Earth Discuss., https://doi.org/10.5194/se-2019-56, https://doi.org/10.5194/se-2019-56, 2019
Revised manuscript not accepted
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Based on own and published age data, we can infer tectonic pulses along-strike the entire northern rim of the Central Alps between 12–4 million years. Although lithologic variations largely influence the local deformation pattern, the tectonic signal is remarkably consistent all the way from Lake Geneva to Salzburg. This might result from a deep-seated tectonic force and marks a change from dominantly vertical to large-scale horizontal tectonics in the late stage of Alpine orogeny.
Alessandro Lechmann, David Mair, Akitaka Ariga, Tomoko Ariga, Antonio Ereditato, Ryuichi Nishiyama, Ciro Pistillo, Paola Scampoli, Fritz Schlunegger, and Mykhailo Vladymyrov
Solid Earth, 9, 1517–1533, https://doi.org/10.5194/se-9-1517-2018, https://doi.org/10.5194/se-9-1517-2018, 2018
Short summary
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Muon tomography is a technology, similar to X-ray tomography, to image the interior of an object, including geologically interesting ones. In this work, we examined the influence of rock composition on the physical measurements, and the possible error that is made by assuming a too-simplistic rock model. We performed numerical simulations for a more realistic rock model and found that beyond 300 m of rock, the composition starts to play a significant role and has to be accounted for.
David Mair, Alessandro Lechmann, Marco Herwegh, Lukas Nibourel, and Fritz Schlunegger
Solid Earth, 9, 1099–1122, https://doi.org/10.5194/se-9-1099-2018, https://doi.org/10.5194/se-9-1099-2018, 2018
Maxi Castrillejo, Núria Casacuberta, Marcus Christl, Christof Vockenhuber, Hans-Arno Synal, Maribel I. García-Ibáñez, Pascale Lherminier, Géraldine Sarthou, Jordi Garcia-Orellana, and Pere Masqué
Biogeosciences, 15, 5545–5564, https://doi.org/10.5194/bg-15-5545-2018, https://doi.org/10.5194/bg-15-5545-2018, 2018
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The investigation of water mass transport pathways and timescales is important to understand the global ocean circulation. Following earlier studies, we use artificial radionuclides introduced to the oceans in the 1950s to investigate the water transport in the subpolar North Atlantic (SPNA). For the first time, we combine measurements of the long-lived iodine-129 and uranium-236 to confirm earlier findings/hypotheses and to better understand shallow and deep ventilation processes in the SPNA.
Max Boxleitner, Susan Ivy-Ochs, Dagmar Brandova, Marcus Christl, Markus Egli, and Max Maisch
Geogr. Helv., 73, 241–252, https://doi.org/10.5194/gh-73-241-2018, https://doi.org/10.5194/gh-73-241-2018, 2018
Fritz Schlunegger and Philippos Garefalakis
Earth Surf. Dynam., 6, 743–761, https://doi.org/10.5194/esurf-6-743-2018, https://doi.org/10.5194/esurf-6-743-2018, 2018
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Clast imbrication, which is a depositional fabric where clasts overlap each other similar to a run of toppled dominoes, is one of the most conspicuous sedimentary structures in coarse-grained fluvial deposits. However, the conditions leading to this fabric have been contested. Here, we calculate the hydrological conditions for various stream gradients. We find that clast imbrication most likely forms where channel gradients exceed a threshold and where upper flow regime conditions prevail.
Catharina Dieleman, Susan Ivy-Ochs, Kristina Hippe, Olivia Kronig, Florian Kober, and Marcus Christl
E&G Quaternary Sci. J., 67, 17–23, https://doi.org/10.5194/egqsj-67-17-2018, https://doi.org/10.5194/egqsj-67-17-2018, 2018
Antoine Cogez, Frédéric Herman, Éric Pelt, Thierry Reuschlé, Gilles Morvan, Christopher M. Darvill, Kevin P. Norton, Marcus Christl, Lena Märki, and François Chabaux
Earth Surf. Dynam., 6, 121–140, https://doi.org/10.5194/esurf-6-121-2018, https://doi.org/10.5194/esurf-6-121-2018, 2018
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Sediments produced by glaciers are transported by rivers and wind toward the ocean. During their journey, these sediments are weathered, and we know that this has an impact on climate. One key factor is time, but the duration of this journey is largely unknown. We were able to measure the average time that sediment spends only in the glacial area. This time is 100–200 kyr, which is long and allows a lot of processes to act on sediments during their journey.
Anna Costa, Peter Molnar, Laura Stutenbecker, Maarten Bakker, Tiago A. Silva, Fritz Schlunegger, Stuart N. Lane, Jean-Luc Loizeau, and Stéphanie Girardclos
Hydrol. Earth Syst. Sci., 22, 509–528, https://doi.org/10.5194/hess-22-509-2018, https://doi.org/10.5194/hess-22-509-2018, 2018
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We explore the signal of a warmer climate in the suspended-sediment dynamics of a regulated and human-impacted Alpine catchment. We demonstrate that temperature-driven enhanced melting of glaciers, which occurred in the mid-1980s, played a dominant role in suspended sediment concentration rise, through increased runoff from sediment-rich proglacial areas, increased contribution of sediment-rich meltwater, and increased sediment supply in proglacial areas due to glacier recession.
Lorenz Wüthrich, Claudio Brändli, Régis Braucher, Heinz Veit, Negar Haghipour, Carla Terrizzano, Marcus Christl, Christian Gnägi, and Roland Zech
E&G Quaternary Sci. J., 66, 57–68, https://doi.org/10.5194/egqsj-66-57-2017, https://doi.org/10.5194/egqsj-66-57-2017, 2017
François Clapuyt, Veerle Vanacker, Fritz Schlunegger, and Kristof Van Oost
Earth Surf. Dynam., 5, 791–806, https://doi.org/10.5194/esurf-5-791-2017, https://doi.org/10.5194/esurf-5-791-2017, 2017
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This work aims at understanding the behaviour of an earth flow located in the Swiss Alps by reconstructing very accurately its topography over a 2-year period. Aerial photos taken from a drone, which are then processed using a computer vision algorithm, were used to derive the topographic datasets. Combination and careful interpretation of high-resolution topographic analyses reveal the internal mechanisms of the earthflow and its complex rotational structure, which is evolving over time.
Camille Litty, Fritz Schlunegger, and Willem Viveen
Earth Surf. Dynam., 5, 571–583, https://doi.org/10.5194/esurf-5-571-2017, https://doi.org/10.5194/esurf-5-571-2017, 2017
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This paper focuses on the analysis of the properties controlling the grain size in the streams of the western Peruvian Andes. Pebble size distributions in these streams have been compared to fluvial processes and basin properties. The resulting trends and differences in sediment properties seem to have been controlled by threshold conditions upon supply and transport.
Maarten Lupker, Jérôme Lavé, Christian France-Lanord, Marcus Christl, Didier Bourlès, Julien Carcaillet, Colin Maden, Rainer Wieler, Mustafizur Rahman, Devojit Bezbaruah, and Liu Xiaohan
Earth Surf. Dynam., 5, 429–449, https://doi.org/10.5194/esurf-5-429-2017, https://doi.org/10.5194/esurf-5-429-2017, 2017
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We use geochemical approaches (10Be) on river sediments to quantify the erosion rates across the Tsangpo-Brahmaputra (TB) catchment in the eastern Himalayas. Our approach confirms the high erosion rates in the eastern Himalayan syntaxis region and we suggest that the abrasion of landslide material in the syntaxis is a key process in explaining how erosion signals are transferred to the sediment load.
Eric Laloy, Koen Beerten, Veerle Vanacker, Marcus Christl, Bart Rogiers, and Laurent Wouters
Earth Surf. Dynam., 5, 331–345, https://doi.org/10.5194/esurf-5-331-2017, https://doi.org/10.5194/esurf-5-331-2017, 2017
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Over very long timescales, 100 000 years or more, landscapes may drastically change. Sediments preserved in these landscapes have a cosmogenic radionuclide inventory that tell us when and how fast such changes took place. In this paper, we provide first evidence of an elevated long-term erosion rate of the northwestern Campine Plateau (lowland Europe), which can be explained by the loose nature of the subsoil.
Jean L. Dixon, Friedhelm von Blanckenburg, Kurt Stüwe, and Marcus Christl
Earth Surf. Dynam., 4, 895–909, https://doi.org/10.5194/esurf-4-895-2016, https://doi.org/10.5194/esurf-4-895-2016, 2016
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We quantify the glacial legacy of Holocene erosion at the eastern edge of the European Alps and add insight to the debate on drivers of Alpine erosion. We present the first data explicitly comparing 10Be-based erosion rates in previously glaciated and non-glaciated basins (n = 26). Erosion rates vary 5-fold across the region, correlating with local topography and glacial history. Our approach and unique study site allow us to isolate the role of glacial topographic legacies from other controls.
Laura Stutenbecker, Anna Costa, and Fritz Schlunegger
Earth Surf. Dynam., 4, 253–272, https://doi.org/10.5194/esurf-4-253-2016, https://doi.org/10.5194/esurf-4-253-2016, 2016
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This paper considers the influence of lithology on the landscape development in the Central Swiss Alps. In high-alpine settings such as the upper Rhône valley, external forcing by climate, glaciation and uplift affects the geomorphological evolution of the landscape. By careful compilation of published data and geomorphological analysis we found that the rock type and its susceptibility to erosion are the main factors controlling the response time to those perturbations.
K. P. Norton, F. Schlunegger, and C. Litty
Earth Surf. Dynam., 4, 147–157, https://doi.org/10.5194/esurf-4-147-2016, https://doi.org/10.5194/esurf-4-147-2016, 2016
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Cut-fill terraces are common landforms throughout the world. Their distribution both in space and time is not clear-cut, as they can arise from numerous processes. We apply a climate-dependent regolith production algorithm to determine potential sediment loads during climate shifts. When combined with transport capacity, our results suggest that the cut-fill terraces of western Peru can result from transient stripping of hillslope sediment but not steady-state hillslope erosion.
Related subject area
Cross-cutting themes: Geochronology applied to establish timing and rates of Earth surface processes
Bias and error in modelling thermochronometric data: resolving a potential increase in Plio-Pleistocene erosion rate
Evaluating optically stimulated luminescence rock surface exposure dating as a novel approach for reconstructing coastal boulder movement on decadal to centennial timescales
Modelling the effects of ice transport and sediment sources on the form of detrital thermochronological age probability distributions from glacial settings
Holocene sea-level change on the central coast of Bohai Bay, China
Early-to-mid Miocene erosion rates inferred from pre-Dead Sea rift Hazeva River fluvial chert pebbles using cosmogenic 21Ne
Denudation systematics inferred from in situ cosmogenic 10Be concentrations in fine (50–100 µm) and medium (100–250 µm) sediments of the Var River basin, southern French Alps
Millennial-scale denudation rates in the Himalaya of Far Western Nepal
Inferring the timing of abandonment of aggraded alluvial surfaces dated with cosmogenic nuclides
Seeking enlightenment of fluvial sediment pathways by optically stimulated luminescence signal bleaching of river sediments and deltaic deposits
Cosmogenic 10Be in river sediment: where grain size matters and why
Dating and morpho-stratigraphy of uplifted marine terraces in the Makran subduction zone (Iran)
How steady are steady-state mountain belts? A reexamination of the Olympic Mountains (Washington state, USA)
Short communication: Increasing vertical attenuation length of cosmogenic nuclide production on steep slopes negates topographic shielding corrections for catchment erosion rates
Glacial dynamics in pre-Alpine narrow valleys during the Last Glacial Maximum inferred by lowland fluvial records (northeast Italy)
Reconstructing lateral migration rates in meandering systems – a novel Bayesian approach combining optically stimulated luminescence (OSL) dating and historical maps
Tectonic controls of Holocene erosion in a glaciated orogen
Extracting information on the spatial variability in erosion rate stored in detrital cooling age distributions in river sands
U–Th and 10Be constraints on sediment recycling in proglacial settings, Lago Buenos Aires, Patagonia
Influence of topography and human activity on apparent in situ 10Be-derived erosion rates in Yunnan, SW China
The CAIRN method: automated, reproducible calculation of catchment-averaged denudation rates from cosmogenic nuclide concentrations
Denudation rates across the Pamir based on 10Be concentrations in fluvial sediments: dominance of topographic over climatic factors
Tectonic and climatic controls on the Chuquibamba landslide (western Andes, southern Peru)
Re-evaluating luminescence burial doses and bleaching of fluvial deposits using Bayesian computational statistics
A linear inversion method to infer exhumation rates in space and time from thermochronometric data
Sean D. Willett, Frédéric Herman, Matthew Fox, Nadja Stalder, Todd A. Ehlers, Ruohong Jiao, and Rong Yang
Earth Surf. Dynam., 9, 1153–1221, https://doi.org/10.5194/esurf-9-1153-2021, https://doi.org/10.5194/esurf-9-1153-2021, 2021
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The cooling climate of the last few million years leading into the ice ages has been linked to increasing erosion rates by glaciers. One of the ways to measure this is through mineral cooling ages. In this paper, we investigate potential bias in these data and the methods used to analyse them. We find that the data are not themselves biased but that appropriate methods must be used. Past studies have used appropriate methods and are sound in methodology.
Dominik Brill, Simon Matthias May, Nadia Mhammdi, Georgina King, Benjamin Lehmann, Christoph Burow, Dennis Wolf, Anja Zander, and Helmut Brückner
Earth Surf. Dynam., 9, 205–234, https://doi.org/10.5194/esurf-9-205-2021, https://doi.org/10.5194/esurf-9-205-2021, 2021
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Wave-transported boulders are important records for storm and tsunami impact over geological timescales. Their use for hazard assessment requires chronological information. We investigated the potential of a new dating technique, luminescence rock surface exposure dating, for estimating transport ages of wave-emplaced boulders. Our results indicate that the new approach may provide chronological information on decadal to millennial timescales for boulders not datable by any other method so far.
Maxime Bernard, Philippe Steer, Kerry Gallagher, and David Lundbek Egholm
Earth Surf. Dynam., 8, 931–953, https://doi.org/10.5194/esurf-8-931-2020, https://doi.org/10.5194/esurf-8-931-2020, 2020
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Detrital thermochronometric age distributions of frontal moraines have the potential to retrieve ice erosion patterns. However, modelling erosion and sediment transport by the Tiedemann Glacier ice shows that ice velocity, the source of sediment, and ice flow patterns affect age distribution shape by delaying sediment transfer. Local sampling of frontal moraine can represent only a limited part of the catchment area and thus lead to a biased estimation of the spatial distribution of erosion.
Fu Wang, Yongqiang Zong, Barbara Mauz, Jianfen Li, Jing Fang, Lizhu Tian, Yongsheng Chen, Zhiwen Shang, Xingyu Jiang, Giorgio Spada, and Daniele Melini
Earth Surf. Dynam., 8, 679–693, https://doi.org/10.5194/esurf-8-679-2020, https://doi.org/10.5194/esurf-8-679-2020, 2020
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Our new Holocene sea level curve is not only different to previously published data but also different to global glacio-isostatic adjustment (GIA) models. We see that as soon as ice melting has ceased, local processes control shoreline migration and coast evolution. This indicates that more emphasis should be placed on regional coast and sea-level change modelling under a global future of rising sea level as local government needs more specific and effective advice to deal with coastal flooding.
Michal Ben-Israel, Ari Matmon, Alan J. Hidy, Yoav Avni, and Greg Balco
Earth Surf. Dynam., 8, 289–301, https://doi.org/10.5194/esurf-8-289-2020, https://doi.org/10.5194/esurf-8-289-2020, 2020
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Early-to-mid Miocene erosion rates were inferred using cosmogenic 21Ne measured in chert pebbles transported by the Miocene Hazeva River (~ 18 Ma). Miocene erosion rates are faster compared to Quaternary rates in the region. Faster Miocene erosion rates could be due to a response to topographic changes brought on by tectonic uplift, wetter climate in the region during the Miocene, or a combination of both.
Apolline Mariotti, Pierre-Henri Blard, Julien Charreau, Carole Petit, Stéphane Molliex, and the ASTER Team
Earth Surf. Dynam., 7, 1059–1074, https://doi.org/10.5194/esurf-7-1059-2019, https://doi.org/10.5194/esurf-7-1059-2019, 2019
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This work is the first assessment of the suitability of the in situ 10Be method to determine denudation rates from fine (50–100 μm) detrital quartz at the watershed scale. This method is used worldwide to determine denudation rates from sandy sediments (250 μm-1 mm). We show that in the Var catchment fine-grained sediments (50–100 μm) are suited to the 10Be method, which is vital for future applications of 10Be in sedimentary archives such as offshore sediments.
Lujendra Ojha, Ken L. Ferrier, and Tank Ojha
Earth Surf. Dynam., 7, 969–987, https://doi.org/10.5194/esurf-7-969-2019, https://doi.org/10.5194/esurf-7-969-2019, 2019
Mitch K. D'Arcy, Taylor F. Schildgen, Jens M. Turowski, and Pedro DiNezio
Earth Surf. Dynam., 7, 755–771, https://doi.org/10.5194/esurf-7-755-2019, https://doi.org/10.5194/esurf-7-755-2019, 2019
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The age of formation of sedimentary deposits is often interpreted to record information about past environmental changes. Here, we show that the timing of abandonment of surfaces also provides valuable information. We derive a new set of equations that can be used to estimate when a sedimentary surface was abandoned based on what is known about its activity from surface dating. Estimates of abandonment age can benefit a variety of geomorphic analyses, which we illustrate with a case study.
Elizabeth L. Chamberlain and Jakob Wallinga
Earth Surf. Dynam., 7, 723–736, https://doi.org/10.5194/esurf-7-723-2019, https://doi.org/10.5194/esurf-7-723-2019, 2019
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Sand and mud may take many different pathways within a river as they travel from inland to the coast. During the trip, grains may be exposed to daylight, resetting a signal trapped within certain minerals. The signal can be measured in a laboratory to estimate the time since last light exposure. Here, we measure the trapped signal of sand and mud grains from the Mississippi River and its banks. We use this information to infer sediment pathways. Such knowledge is useful for delta management.
Renee van Dongen, Dirk Scherler, Hella Wittmann, and Friedhelm von Blanckenburg
Earth Surf. Dynam., 7, 393–410, https://doi.org/10.5194/esurf-7-393-2019, https://doi.org/10.5194/esurf-7-393-2019, 2019
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The concentration of cosmogenic 10Be is typically measured in the sand fraction of river sediment to estimate catchment-average erosion rates. Using the sand fraction in catchments where the 10Be concentrations differ per grain size could potentially result in biased erosion rates. In this study we investigated the occurrence and causes of grain size-dependent 10Be concentrations and identified the types of catchments which are sensitive to biased catchment-average erosion rates.
Raphaël Normand, Guy Simpson, Frédéric Herman, Rabiul Haque Biswas, Abbas Bahroudi, and Bastian Schneider
Earth Surf. Dynam., 7, 321–344, https://doi.org/10.5194/esurf-7-321-2019, https://doi.org/10.5194/esurf-7-321-2019, 2019
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We studied and mapped uplifted marine terraces in southern Iran that are part of the Makran subduction zone. Our results show that most exposed terraces were formed in the last 35 000–250 000 years. Based on their altitude and the paleo sea-level, we derive surface uplift rates of 0.05–5 mm yr−1. The marine terraces, tilted with a short wavelength of 20–30 km, indicate a heterogeneous accumulation of deformation in the overriding plate.
Lorenz Michel, Christoph Glotzbach, Sarah Falkowski, Byron A. Adams, and Todd A. Ehlers
Earth Surf. Dynam., 7, 275–299, https://doi.org/10.5194/esurf-7-275-2019, https://doi.org/10.5194/esurf-7-275-2019, 2019
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Mountain-building processes are often investigated by assuming a steady state, meaning the balance between opposing forces, like mass influx and mass outflux. This work shows that the Olympic Mountains are in flux steady state on long timescales (i.e., 14 Myr), but the flux steady state could be disturbed on shorter timescales, especially by the Plio–Pleistocene glaciation. The contribution highlights the temporally nonsteady evolution of mountain ranges.
Roman A. DiBiase
Earth Surf. Dynam., 6, 923–931, https://doi.org/10.5194/esurf-6-923-2018, https://doi.org/10.5194/esurf-6-923-2018, 2018
Sandro Rossato, Anna Carraro, Giovanni Monegato, Paolo Mozzi, and Fabio Tateo
Earth Surf. Dynam., 6, 809–828, https://doi.org/10.5194/esurf-6-809-2018, https://doi.org/10.5194/esurf-6-809-2018, 2018
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Glaciations may induce significant changes in the catchments of major sedimentary systems over time, even during a single phase. The rugged morphology of Alpine valleys may slow, block or divert glacial tongues. This conclusion arises from reconstructions made regarding the dynamics of the Brenta glacial system (northeast Italy). These reconstructions included sediment analysis techniques on the related alluvial stratigraphic record and mapping of in-valley glacial/glaciofluvial remnants.
Cindy Quik and Jakob Wallinga
Earth Surf. Dynam., 6, 705–721, https://doi.org/10.5194/esurf-6-705-2018, https://doi.org/10.5194/esurf-6-705-2018, 2018
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Identifying contemporary river migration rates is often based on aerial photos or recent topographical maps. Here, we propose to use river sediments as an archive to look further back in time using optically stimulated luminescence (OSL) dating and develop a modelling procedure for the joint analysis of dating results and historical maps. The procedure is applied to the Overijsselse Vecht river in The Netherlands, and we show that the river migrated with 0.9–2.6 m yr−1 between 1400 and 1900 CE.
Byron A. Adams and Todd A. Ehlers
Earth Surf. Dynam., 6, 595–610, https://doi.org/10.5194/esurf-6-595-2018, https://doi.org/10.5194/esurf-6-595-2018, 2018
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Where alpine glaciers were active in the past, they have created scenic landscapes that are likely in the process of morphing back into a form that it more stable with today's climate regime and tectonic forces. By looking at older erosion rates from before the time of large alpine glaciers and erosion rates since deglaciation in the Olympic Mountains (USA), we find that the topography and erosion rates have not drastically changed despite the impressive glacial valleys that have been carved.
Jean Braun, Lorenzo Gemignani, and Peter van der Beek
Earth Surf. Dynam., 6, 257–270, https://doi.org/10.5194/esurf-6-257-2018, https://doi.org/10.5194/esurf-6-257-2018, 2018
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We present a new method to interpret a type of data that geologists obtained by dating minerals in river sand samples. We show that such data contain information about the spatial distribution of the erosion rate (wear of surface rocks by natural processes such as river incision, land sliding or weathering) in the regions neighboring the river. This is important to understand the nature and efficiency of the processes responsible for surface erosion in mountain belts.
Antoine Cogez, Frédéric Herman, Éric Pelt, Thierry Reuschlé, Gilles Morvan, Christopher M. Darvill, Kevin P. Norton, Marcus Christl, Lena Märki, and François Chabaux
Earth Surf. Dynam., 6, 121–140, https://doi.org/10.5194/esurf-6-121-2018, https://doi.org/10.5194/esurf-6-121-2018, 2018
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Sediments produced by glaciers are transported by rivers and wind toward the ocean. During their journey, these sediments are weathered, and we know that this has an impact on climate. One key factor is time, but the duration of this journey is largely unknown. We were able to measure the average time that sediment spends only in the glacial area. This time is 100–200 kyr, which is long and allows a lot of processes to act on sediments during their journey.
Amanda H. Schmidt, Thomas B. Neilson, Paul R. Bierman, Dylan H. Rood, William B. Ouimet, and Veronica Sosa Gonzalez
Earth Surf. Dynam., 4, 819–830, https://doi.org/10.5194/esurf-4-819-2016, https://doi.org/10.5194/esurf-4-819-2016, 2016
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In order to test the assumption that erosion rates derived from Be-10 are not affected by increases in erosion due to contemporary agricultural land use, we measured erosion rates in three tributaries of the Mekong River. We find that in the most heavily agricultural landscapes, the apparent long-term erosion rate correlates best with measures of modern land use, suggesting that agriculture has eroded below the mixed layer and is affecting apparent erosion rates derived from Be-10.
Simon Marius Mudd, Marie-Alice Harel, Martin D. Hurst, Stuart W. D. Grieve, and Shasta M. Marrero
Earth Surf. Dynam., 4, 655–674, https://doi.org/10.5194/esurf-4-655-2016, https://doi.org/10.5194/esurf-4-655-2016, 2016
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Cosmogenic nuclide concentrations are widely used to calculate catchment-averaged denudation rates. Despite their widespread use, there is currently no open source method for calculating such rates, and the methods used to calculate catchment-averaged denudation rates vary widely between studies. Here we present an automated, open-source method for calculating basin averaged denudation rates, which may be used as a stand-alone calculator or as a front end to popular online calculators.
M. C. Fuchs, R. Gloaguen, S. Merchel, E. Pohl, V. A. Sulaymonova, C. Andermann, and G. Rugel
Earth Surf. Dynam., 3, 423–439, https://doi.org/10.5194/esurf-3-423-2015, https://doi.org/10.5194/esurf-3-423-2015, 2015
A. Margirier, L. Audin, J. Carcaillet, S. Schwartz, and C. Benavente
Earth Surf. Dynam., 3, 281–289, https://doi.org/10.5194/esurf-3-281-2015, https://doi.org/10.5194/esurf-3-281-2015, 2015
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This study deals with the control of crustal tectonic activity and Altiplano climatic fluctuations in the evolution of the arid western Andes. Based on geomorphic analysis coupled with terrestrial cosmogenic nuclide investigation, we point out the role of active faulting and wet events in the development of the Chuquibamba landslide (southern Peru). Our main outcome is that the last major debris flow coincides in time with the Ouki wet climatic event identified on the Altiplano.
A. C. Cunningham, J. Wallinga, N. Hobo, A. J. Versendaal, B. Makaske, and H. Middelkoop
Earth Surf. Dynam., 3, 55–65, https://doi.org/10.5194/esurf-3-55-2015, https://doi.org/10.5194/esurf-3-55-2015, 2015
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Rivers transport sediment from mountains to coast, but on the way sediment is trapped and re-eroded multiple times. We looked at Rhine river sediments to see if they preserve evidence of how geomorphic variables have changed over time. We found that measured signals potentially relate to water level and river management practices. These relationships can be treated as hypotheses to guide further research, and our statistical approach will increase the utility of research in this field.
M. Fox, F. Herman, S. D. Willett, and D. A. May
Earth Surf. Dynam., 2, 47–65, https://doi.org/10.5194/esurf-2-47-2014, https://doi.org/10.5194/esurf-2-47-2014, 2014
Cited articles
Akçar, N., Deline, P., Ivy-Ochs, S., Alfimov, V., Hajdas, I., Kubik, P.
W., Christl, M., and Schlüchter, C.: The AD 1717 rock avalanche deposits
in the upper Ferret Valley (Italy): A dating approach with cosmogenic 10Be,
J. Quaternary Sci., 27, 383–392, https://doi.org/10.1002/jqs.1558, 2012.
Aldred, J., Eppes, M. C., Aquino, K., Deal, R., Garbini, J., Swami, S.,
Tuttle, A., and Xanthos, G.: The influence of solar-induced thermal stresses
on the mechanical weathering of rocks in humid mid-latitudes, Earth Surf.
Proc. Land., 41, 603–614, https://doi.org/10.1002/esp.3849, 2016.
Allen, S. K., Gruber, S., and Owens, I. F.: Exploring steep bedrock
permafrost and its relationship with recent slope failures in the Southern
Alps of New Zealand, Permafr. Periglac., 20, 345–356,
https://doi.org/10.1002/ppp.658, 2009.
Amitrano, D., Gruber, S., and Girard, L.: Evidence of frost-cracking inferred
from acoustic emissions in a high-alpine rock-wall, Earth Planet. Sc.
Lett., 341–344, 86–93, https://doi.org/10.1016/j.epsl.2012.06.014, 2012.
Andersen, J. L., Egholm, D. L., Knudsen, M. F., Jansen, J. D., and Nielsen, S. B.: The periglacial engine of mountain erosion – Part 1: Rates of frost cracking and frost creep, Earth Surf. Dynam., 3, 447–462, https://doi.org/10.5194/esurf-3-447-2015, 2015.
Anderson, R. S.: Near-Surface Thermal Profiles in Alpine Bedrock:
Implications for the Frost Weathering of Rock, Arct. Antartct. Alp. Res., 30, 362–372,
https://doi.org/10.2307/1552008, 1998.
Anderson, R. S., Repka, J. L., and Dick, G. S.: Explicit treatment of
inheritance in dating depositional surfaces using in situ 10Be and 26Al,
Geology, 24, , 47–51, https://doi.org/10.1130/0091-7613(1996)024<0047:ETOIID>2.3.CO;2, 1996.
Anderson, R. S., Anderson, S. P., and Tucker, G. E.: Rock damage and regolith
transport by frost: An example of climate modulation of the geomorphology of
the critical zone, Earth Surf. Proc. Land,, 38, 299–316,
https://doi.org/10.1002/esp.3330, 2013.
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.
Bini, A., Buoncristiani, J. F., Couterrand, S., Ellwanger, D., Felber, M., Florineth, D., Graf, H. R., Keller, O., Kelly, M., Schlüchter, C., and Schöneich, P.: Die Schweiz während des letzteiszeitlichen Maximums (LGM), karte 1:500 000, Federal Office of Topography swisstopo, Wabern, Switzerland, 2009.
Berger, A., Mercolli, I., Herwegh, M., and Gnos E.: Geological Map of the Aar Massif, Tavetsch and Gotthard Nappes 1:100 000, Federal Office of Topography Swisstopo, Wabern, 2017.
Borchers, B., Marrero, S., Balco, G., Caffee, M., Goehring, B., Lifton, N.,
Nishiizumi, K., Phillips, F., Schaefer, J., and Stone, J.: Geological
calibration of spallation production rates in the CRONUS-Earth project,
Quat. Geochronol., 31, 188–198, https://doi.org/10.1016/j.quageo.2015.01.009, 2016.
Braucher, R., Brown, E. T., Bourlès, D. L., and Colin, F.: In situ
produced 10Be measurements at great depths: Implications for production
rates by fast muons, Earth Planet. Sc. Lett., 211, 251–258,
https://doi.org/10.1016/S0012-821X(03)00205-X, 2003.
Braucher, R., Bourlès, D., Merchel, S., Vidal Romani, J.,
Fernadez-Mosquera, D., Marti, K., Léanni, L., Chauvet, F., Arnold, M.,
Aumaître, G., and Keddadouche, K.: Determination of muon attenuation
lengths in depth profiles from in situ produced cosmogenic nuclides, Nucl.
Instrum. Meth. B,
294, 484–490, https://doi.org/10.1016/j.nimb.2012.05.023, 2013.
Braucher, R., Del Castillo, P., Siame, L., Hidy, A. J., and Bourlés, D. L.: Determination of both exposure time and denudation rate from an in situ-produced 10Be depth profile: A mathematical proof of uniqueness. Model sensitivity and applications to natural cases, Quat. Geochronol., 4, 56–67, https://doi.org/10.1016/j.quageo.2008.06.001, 2009.
Büntgen, U., Frank, D. C., Nievergelt, D., and Esper, J.: Summer
Temperature Variations in the European Alps, < scp >a.d.< /scp > 755–2004, J. Climate, 19, 5606–5623,
https://doi.org/10.1175/JCLI3917.1, 2006.
Büntgen, U., Tegel, W., Nicolussi, K., McCormick, M., Frank, D., Trouet,
V., Kaplan, J. O., Herzig, F., Heussner, K.-U., Wanner, H., Luterbacher, J.,
and Esper, J.: 2500 Years of European Climate Variability and Human
Susceptibility, Science, 331, 578–582,
https://doi.org/10.1126/science.1197175, 2011.
Christl, M., Vockenhuber, C., Kubik, P. W., Wacker, L., Lachner, J.,
Alfimov, V., and Synal, H. A.: The ETH Zurich AMS facilities: Performance
parameters and reference materials, Nucl. Instrum. Meth. B, 294, 29–38,
https://doi.org/10.1016/j.nimb.2012.03.004, 2013.
CH2018: Climate Scenarios for Switzerland, Technical Report, National
Centre for Climate Services, Zurich, 2018.
Collins, B. D. and Stock, G. M.: Rockfall triggering by cyclic thermal
stressing of exfoliation fractures, Nat. Geosci., 9, 395–400,
https://doi.org/10.1038/ngeo2686, 2016.
Davidson, G. P. and Nye, J. F.: A photoelastic study of ice pressure in rock
cracks, Cold Reg. Sci. Technol., 11, 141–153,
https://doi.org/10.1016/0165-232X(85)90013-8, 1985.
Delunel, R., van der Beek, P. A., Carcaillet, J., Bourlès, D. L., and
Valla, P. G.: Frost-cracking control on catchment denudation rates: Insights
from in situ produced 10Be concentrations in stream sediments
(Ecrins-Pelvoux massif, French Western Alps), Earth Planet. Sc. Lett., 293,
72–83, https://doi.org/10.1016/j.epsl.2010.02.020, 2010.
Draebing, D. and Krautblatter, M.: P-wave velocity changes in freezing hard low-porosity rocks: a laboratory-based time-average model, The Cryosphere, 6, 1163–1174, https://doi.org/10.5194/tc-6-1163-2012, 2012.
Draebing, D. and Krautblatter, M.: The Efficacy of Frost Weathering
Processes in Alpine Rockwalls, Geophys. Res. Lett., 46, 6516–6524,
https://doi.org/10.1029/2019GL081981, 2019.
Draebing, D., Krautblatter, M., and Dikau, R.: Interaction of thermal and
mechanical processes in steep permafrost rock walls: A conceptual approach,
Geomorphology, 226, 226–235, https://doi.org/10.1016/j.geomorph.2014.08.009, 2014.
Draebing, D., Haberkorn, A., Krautblatter, M., Kenner, R., and Phillips, M.:
Thermal and Mechanical Responses Resulting From Spatial and Temporal Snow
Cover Variability in Permafrost Rock Slopes, Steintaelli, Swiss Alps,
Permafr. Periglac., 28, 140–157, https://doi.org/10.1002/ppp.1921, 2017a.
Draebing, D., Krautblatter, M., and Hoffmann, T.: Thermo-cryogenic controls
of fracture kinematics in permafrost rockwalls, Geophys. Res. Lett., 44,
3535–3544, https://doi.org/10.1002/2016GL072050, 2017b.
Dunai, T. J. and Stuart, F. M.: Reporting of cosmogenic nuclide data for
exposure age and erosion rate determinations, Quat. Geochronol., 4,
437–440, https://doi.org/10.1016/j.quageo.2009.04.003, 2009.
Dunne, J., Elmore, D., and Muzikar, P.: Scaling factors for the rates of
production of cosmogenic nuclides for geometric shielding and attenuation at
depth on sloped surfaces, Geomorphology, 27, 3–11,
https://doi.org/10.1016/S0169-555X(98)00086-5, 1999.
Eppes, M. C., Magi, B., Hallet, B., Delmelle, E., Mackenzie-Helnwein, P.,
Warren, K., and Swami, S.: Deciphering the role of solar-induced thermal
stresses in rock weathering, B. Geol. Soc. Am., 128, 1315–1338,
https://doi.org/10.1130/B31422.1, 2016.
Fu, P. and Rich, P. M.: A geometric solar radiation model with applications
in agriculture and forestry, Comput. Electron. Agr., 37, 25–35,
https://doi.org/10.1016/S0168-1699(02)00115-1, 2002.
Girard, L., Gruber, S., Weber, S., and Beutel, J.: Environmental controls of
frost cracking revealed through in situ acoustic emission measurements in
steep bedrock, Geophys. Res. Lett., 40, 1748–1753, https://doi.org/10.1002/grl.50384,
2013.
Gobiet, A., Kotlarski, S., Beniston, M., Heinrich, G., Rajczak, J., and
Stoffel, M.: 21st century climate change in the European Alps-A review, Sci.
Total Environ., 493, 1138–1151, https://doi.org/10.1016/j.scitotenv.2013.07.050, 2014.
Gosse, J. C. and Phillips, F. M.: Terrestrial in situ cosmogenic nuclides:
Theory and application, Quaternary Sci. Rev., 20, 1475–1560,
https://doi.org/10.1111/j.1755-0998.2010.02842.x, 2001.
Grämiger, L. M., Moore, J. R., Gischig, V. S., Ivy-Ochs, S., and Loew,
S.: Beyond debuttressing: Mechanics of paraglacial rock slope damage during
repeat glacial cycles, J. Geophys. Res.-Earth, 122, 1004–1036,
https://doi.org/10.1002/2016JF003967, 2017.
Gruber, S. and Haeberli, W.: Permafrost in steep bedrock slopes and its
temperatures-related destabilization following climate change, J. Geophys.
Res.-Earth, 112, 1–10, https://doi.org/10.1029/2006JF000547, 2007.
Gruber, S., Hoelzle, M., and Haeberli, W.: Permafrost thaw and
destabilization of Alpine rock walls in the hot summer of 2003, Geophys.
Res. Lett., 31, L13504, https://doi.org/10.1029/2004GL020051, 2004a.
Gruber, S., Hoelzle, M., and Haeberli, W.: Rock-wall temperatures in the
Alps: Modelling their topographic distribution and regional differences,
Permafr. Periglac., 15, 299–307, https://doi.org/10.1002/ppp.501, 2004b.
Günzler-Seifert, H. and Wyss, R.: Erläuterungen zum Kartenblatt
Grindelwald, Geol. Kommision der schweiz. Naturforsch. Gesellschaft, Bern, 1938.
Haberkorn, A., Hoelzle, M., Phillips, M., and Kenner, R.: Snow as a driving
factor of rock surface temperatures in steep rough rock walls, Cold Reg.
Sci. Technol., 118, 64–75, https://doi.org/10.1016/j.coldregions.2015.06.013, 2015.
Haeberli, W., Wegmann, M., and Mühll, D. V.: Slope stability problems
related to glacier shrinkage and permafrost degradation in the Alps, Eclogae
Geol. Helv., 90, 407–414, 1997.
Hales, T. C. and Roering, J. J.: Climatic controls on frost cracking and
implications for the evolution of bedrock landscapes, J. Geophys. Res.-Earth, 112, 1–14, https://doi.org/10.1029/2006JF000616, 2007.
Hales, T. C. and Roering, J. J.: A frost “buzzsaw” mechanism for erosion
of the eastern Southern Alps, New Zealand, Geomorphology, 107, 241–253,
https://doi.org/10.1016/j.geomorph.2008.12.012, 2009.
Hallet, B., Walder, J. S., and Stubbs, C. W.: Weathering by segregation ice
growth in microcracks at sustained subzero temperatures: Verification from
an experimental study using acoustic emissions, Permafr. Periglac.,
2, 283–300, https://doi.org/10.1002/ppp.3430020404, 1991.
Harris, C., Haeberli, W., Vonder Mühll, D., and King, L.: Permafrost
monitoring in the high mountains of Europe: the PACE Project in its global
context, Permafr. Periglac., 12, 3–11, https://doi.org/10.1002/ppp.377, 2001.
Heisinger, B., Lal, D., Jull, A. J. T., Kubik, P., Ivy-Ochs, S., Neumaier,
S., Knie, K., Lazarev, V., and Nolte, E.: Production of selected cosmogenic
radionuclides by muons: 1. Fast muons, Earth Planet. Sc. Lett., 200,
345–355, https://doi.org/10.1016/S0012-821X(02)00640-4, 2002a.
Heisinger, B., Lal, D., Jull, A. J. T., Kubik, P., Ivy-Ochs, S., Knie, K.,
and Nolte, E.: Production of selected cosmogenic radionuclides by muons: 2.
Capture of negative muons, Earth Planet. Sc. Lett., 200, 357–369,
https://doi.org/10.1016/S0012-821X(02)00641-6, 2002b.
Herwegh, M., Berger, A., Baumberger, R., Wehrens, P., and Kissling, E.:
Large-Scale Crustal-Block-Extrusion During Late Alpine Collision, Sci. Rep.-UK,
7, 1–10, https://doi.org/10.1038/s41598-017-00440-0, 2017.
Hidy, A. J., Gosse, J. C., Pederson, J. L., Mattern, J. P., and Finkel, R.
C.: A geologically constrained Monte Carlo approach to modeling exposure
ages from profiles of cosmogenic nuclides: An example from Lees Ferry,
Arizona, Geochem. Geophy. Geosy., 11, Q0AA10, https://doi.org/10.1029/2010GC003084,
2010.
Ivy-Ochs, S., Kerschner, H., Maisch, M., Christl, M., Kubik, P. W., and
Schlüchter, C.: Latest Pleistocene and Holocene glacier variations in
the European Alps, Quaternary Sci. Rev., 28, 2137–2149,
https://doi.org/10.1016/j.quascirev.2009.03.009, 2009.
Kelly, M. A., Buoncristiani, J. F., and Schlüchter, C.: A reconstruction
of the last glacial maximum (LGM) ice-surface geometry in the western Swiss
Alps and contiguous Alpine regions in Italy and France, Eclogae Geol. Helv.,
97, 57–75, https://doi.org/10.1007/s00015-004-1109-6, 2004.
Krautblatter, M. and Moore, J. R.: Rock slope instability and erosion:
Toward improved process understanding, Earth Surf. Proc. Land., 39,
1273–1278, https://doi.org/10.1002/esp.3578, 2014.
Krautblatter, M., Moser, M., Schrott, L., Wolf, J., and Morche, D.:
Significance of rockfall magnitude and carbonate dissolution for rock slope
erosion and geomorphic work on Alpine limestone cliffs (Reintal, German
Alps), Geomorphology, 167–168, 21–34, https://doi.org/10.1016/j.geomorph.2012.04.007,
2012.
Krautblatter, M., Funk, D., and Günzel, F. K.: Why permafrost rocks
become unstable: A rock-ice-mechanical model in time and space, Earth Surf.
Proc. Land., 38, 876–887, https://doi.org/10.1002/esp.3374, 2013.
Lal, D.: Cosmic ray labeling of erosion surfaces: in situ nuclide production
rates and erosion models, Earth Planet. Sc. Lett., 104, 424–439,
https://doi.org/10.1016/0012-821X(91)90220-C, 1991.
Larocque-Tobler, I., Stewart, M. M., Quinlan, R., Trachsel, M., Kamenik, C., and Grosjean, M.: A last millennium temperature reconstruction using chironomids preserved in sediments of anoxic Seebergsee (Switzerland): Consensus at local, regional and Central European scales, Quaternary Sci. Rev., 41, 49–56, https://doi.org/10.1016/j.quascirev.2012.03.010, 2012.
Mair, D., Lechmann, A., Herwegh, M., Nibourel, L., and Schlunegger, F.: Linking Alpine deformation in the Aar Massif basement and its cover units – the case of the Jungfrau–Eiger mountains (Central Alps, Switzerland), Solid Earth, 9, 1099–1122, https://doi.org/10.5194/se-9-1099-2018, 2018.
Mair, D., Lechmann, A., Yesilyurt, S., Tikhomirov, D., Delunel, R.,
Vockenhuber, C., Akçar, N., and Schlunegger, F.: Fast long-term
denudation rate of steep alpine headwalls inferred from cosmogenic 36Cl
depth profiles, Sci. Rep.-UK, 9, 11023, https://doi.org/10.1038/s41598-019-46969-0, 2019.
Marrero, S. M., Phillips, F. M., Borchers, B., Lifton, N., Aumer, R., and
Balco, G.: Cosmogenic nuclide systematics and the CRONUScalc program, Quat.
Geochronol., 31, 160–187, https://doi.org/10.1016/j.quageo.2015.09.005, 2016.
Matsuoka, N.: The rate of bedrock weathering by frost action: Field
measurements and a predictive model, Earth Surf. Proc. Land., 15,
73–90, https://doi.org/10.1002/esp.3290150108, 1990.
Matsuoka, N.: Microgelivation versus macrogelivation: towards bridging the
gap between laboratory and field frost weathering, Permafr. Periglac., 12, 299–313, https://doi.org/10.1002/ppp.393, 2001.
Matsuoka, N.: Frost weathering and rockwall erosion in the southeastern
Swiss Alps: Long-term (1994–2006) observations, Geomorphology, 99, 353–368,
https://doi.org/10.1016/j.geomorph.2007.11.013, 2008.
Matsuoka, N. and Murton, J.: Frost weathering: recent advances and future
directions, Permafr. Periglac., 19, 195–210, https://doi.org/10.1002/ppp.620,
2008.
McColl, S. T.: Paraglacial rock-slope stability, Geomorphology, 153–154,
1–16, https://doi.org/10.1016/j.geomorph.2012.02.015, 2012.
McColl, S. T. and Draebing, D.: Rock Slope Instability in the Proglacial
Zone: State of the Art, in: Geomorphology of Proglacial Systems, Geography of the Physical Environment, edited by: Heckmann, T. and Morche, D., Springer, 119–141,
https://doi.org/10.1007/978-3-319-94184-4_8, 2019.
Moore, J. R., Sanders, J. W., Dietrich, W. E., and Glaser, S. D.: Influence
of rock mass strength on the erosion rate of alpine cliffs, Earth Surf.
Proc. Land., 34, 1339–1352, https://doi.org/10.1002/esp.1821, 2009.
Murton, J. B., Peterson, R., and Ozouf, J. C.: Bedrock fracture by ice
segregation in cold regions, Science, 314, 1127–1129,
https://doi.org/10.1126/science.1132127, 2006.
Murton, J. B., Ozouf, J. C., and Peterson, R.: Heave, settlement and fracture
of chalk during physical modelling experiments with temperature cycling
above and below 0 ∘C, Geomorphology, 270, 71–87,
https://doi.org/10.1016/j.geomorph.2016.07.016, 2016.
Noetzli, J., Gruber, S., Kohl, T., Salzmann, N., and Haeberli, W.:
Three-dimensional distribution and evolution of permafrost temperatures in
idealized high-mountain topography, J. Geophys. Res., 112, F02S13,
https://doi.org/10.1029/2006JF000545, 2007.
PERMOS: PERMOS Database, Swiss Permafrost Monitoring Network, Fribourg
and Davos, Switzerland, https://doi.org/10.13093/permos-2019-01, 2019.
Rapp, A.: Recent Development of Mountain Slopes in Kärkevagge and
Surroundings, Northern Scandinavia, Geogr. Ann., 42, 65–200, https://doi.org/10.2307/520126,
1960.
Rempel, A. W., Marshall, J. A., and Roering, J. J.: Modeling relative frost
weathering rates at geomorphic scales, Earth Planet. Sc. Lett., 453,
87–95, https://doi.org/10.1016/j.epsl.2016.08.019, 2016.
Rode, M., Schnepfleitner, H., and Sass, O.: Simulation of moisture content in
alpine rockwalls during freeze–thaw events, Earth Surf. Proc. Land.,
41, 1937–1950, https://doi.org/10.1002/esp.3961, 2016.
Sanders, J. W., Cuffey, K. M., Moore, J. R., MacGregor, K. R., and Kavanaugh,
J. L.: Periglacial weathering and headwall erosion in cirque glacier
bergschrunds, Geology, 40, 779–782, https://doi.org/10.1130/G33330.1, 2012.
Sass, O.: Rock moisture measurements: Techniques, results, and implications
for weathering, Earth Surf. Proc. Land., 30, 359–374,
https://doi.org/10.1002/esp.1214, 2005.
Sass, O. and Wollny, K.: Investigations regarding Alpine talus slopes using
ground-penetrating radar (GPR) in the Bavarian Alps, Germany, Earth Surf.
Proc. Land., 26, 1071–1086, https://doi.org/10.1002/esp.254, 2001.
Savi, S., Delunel, R., and Schlunegger, F.: Efficiency of frost-cracking
processes through space and time: An example from the eastern Italian Alps,
Geomorphology, 232, 248–260, https://doi.org/10.1016/j.geomorph.2015.01.009, 2015.
Schlunegger, F. and Norton, K. P.: Water versus ice: The competing roles of
modern climate and Pleistocene glacial erosion in the Central Alps of
Switzerland, Tectonophysics, 602, 370–381, https://doi.org/10.1016/j.tecto.2013.03.027,
2013.
Schön, J. H.: Chapter 9 – Thermal Properties, in Physical Properties of Rocks, edited by: Schön, J. H., Developments in Petroleum Science, 65, 369–414, https://doi.org/10.1016/B978-0-08-100404-3.00009-3, 2015.
Stone, J. O.: Air pressure and cosmogenic isotope production, J. Geophys.
Res.-Sol. Ea., 105, 23753–23759, https://doi.org/10.1029/2000JB900181, 2000.
Terzaghi, K.: Stability of Steep Slopes on Hard Unweathered Rock,
Géotechnique, 12, 251–270, https://doi.org/10.1680/geot.1962.12.4.251, 1962.
Viles, H. A.: Linking weathering and rock slope instability: Non-linear
perspectives, Earth Surf. Proc. Land., 38, 62–70,
https://doi.org/10.1002/esp.3294, 2013.
Vollmer, F. W.: C program for automatic contouring of spherical orientation
data using a modified Kamb method, Comput. Geosci., 21, 31–49,
https://doi.org/10.1016/0098-3004(94)00058-3, 1995.
Vollmer, F. W.: Orient 3: A new integrated software program for orientation
data analysis, kinematic analysis, spherical projections, and Schmidt plots,
Abstr. with Programs – Geol. Soc. Am., GSA Annual Meeting in Baltimore, Maryland, USA, 47,
2015.
Walder, J. S. and Hallet, B.: Geological Society of America Bulletin A
theoretical model of the fracture of rock during freezin, GSA Bull., 96,
336–346, https://doi.org/10.1130/0016-7606(1985)96<336, 1985.
Walder, J. S. and Hallet, B.: The Physical Basis of Frost Weathering: Toward
a More Fundamental and Unified Perspective, Arct. Alp. Res., 18, 27–32,
https://doi.org/10.2307/1551211, 1986.
Wehrens, P., Baumberger, R., Berger, A., and Herwegh, M.: How is strain
localized in a meta-granitoid, mid-crustal basement section? Spatial
distribution of deformation in the central Aar massif (Switzerland), J.
Struct. Geol., 94, 47–67, https://doi.org/10.1016/j.jsg.2016.11.004, 2017.
Wirsig, C., Zasadni, J., Ivy-Ochs, S., Christl, M., Kober, F., and
Schlüchter, C.: A deglaciation model of the Oberhasli, Switzerland, J.
Quaternary Sci., 31, 46–59, https://doi.org/10.1002/jqs.2831, 2016a.
Wirsig, C., Zasadni, J., Christl, M., Akçar, N., and Ivy-Ochs, S.: Dating
the onset of LGM ice surface lowering in the High Alps, Quaternary Sci. Rev.,
143, 37–50, https://doi.org/10.1016/j.quascirev.2016.05.001, 2016b.
