Research article 29 Mar 2018
Research article | 29 Mar 2018
Extracting information on the spatial variability in erosion rate stored in detrital cooling age distributions in river sands
Jean Braun et al.
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Benjamin Campforts, Charles M. Shobe, Philippe Steer, Matthias Vanmaercke, Dimitri Lague, and Jean Braun
Geosci. Model Dev., 13, 3863–3886, https://doi.org/10.5194/gmd-13-3863-2020, https://doi.org/10.5194/gmd-13-3863-2020, 2020
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Landslides shape the Earth’s surface and are a dominant source of terrestrial sediment. Rivers, then, act as conveyor belts evacuating landslide-produced sediment. Understanding the interaction among rivers and landslides is important to predict the Earth’s surface response to past and future environmental changes and for mitigating natural hazards. We develop HyLands, a new numerical model that provides a toolbox to explore how landslides and rivers interact over several timescales.
Guillaume Cordonnier, Benoît Bovy, and Jean Braun
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We propose a new algorithm to solve the problem of flow routing across local depressions in the topography, one of the main computational bottlenecks in landscape evolution models. Our solution is more efficient than the state-of-the-art algorithms, with an optimal linear asymptotic complexity. The algorithm has been designed specifically to be used within landscape evolution models, and also suits more generally the efficient treatment of large digital elevation models.
J. Braun, C. Voisin, A. T. Gourlan, and C. Chauvel
Earth Surf. Dynam., 3, 1–14, https://doi.org/10.5194/esurf-3-1-2015, https://doi.org/10.5194/esurf-3-1-2015, 2015
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We have derived a simple solution to the stream power law equation governing the erosion of rapidly uplifting tectonic areas assuming that rainfall varies as a periodic function of time. We show that the erosional response of this forcing is characterized by an amplification of the resulting erosional flux variations as well as a time lag. We show how this time lag can be important in interpreting several geological observations.
T. Croissant and J. Braun
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Xiong Ou, Anne Replumaz, and Peter van der Beek
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The low-relief, mean-elevation Baima Xueshan massif experienced slow exhumation at a rate of 0.01 km/Myr since at least 22 Ma and then regional rock uplift at 0.25 km/Myr since ~10 Ma. The high-relief, high-elevation Kawagebo massif shows much stronger local rock uplift related to the motion along a west-dipping thrust fault, at a rate of 0.45 km/Myr since at least 10 Ma, accelerating to 1.86 km/Myr since 1.6 Ma. Mekong River incision plays a minor role in total exhumation in both massifs.
Benjamin Campforts, Charles M. Shobe, Philippe Steer, Matthias Vanmaercke, Dimitri Lague, and Jean Braun
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Landslides shape the Earth’s surface and are a dominant source of terrestrial sediment. Rivers, then, act as conveyor belts evacuating landslide-produced sediment. Understanding the interaction among rivers and landslides is important to predict the Earth’s surface response to past and future environmental changes and for mitigating natural hazards. We develop HyLands, a new numerical model that provides a toolbox to explore how landslides and rivers interact over several timescales.
Guillaume Cordonnier, Benoît Bovy, and Jean Braun
Earth Surf. Dynam., 7, 549–562, https://doi.org/10.5194/esurf-7-549-2019, https://doi.org/10.5194/esurf-7-549-2019, 2019
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We propose a new algorithm to solve the problem of flow routing across local depressions in the topography, one of the main computational bottlenecks in landscape evolution models. Our solution is more efficient than the state-of-the-art algorithms, with an optimal linear asymptotic complexity. The algorithm has been designed specifically to be used within landscape evolution models, and also suits more generally the efficient treatment of large digital elevation models.
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We used a 2-D thermomechanical code to simulate the evolution of an orogen. Our aim was to study the interaction between tectonic and surface processes in orogenic forelands. We found that an increase in the sediment input to the foreland results in prolonged activity of the active frontal thrust. Such a scenario could occur naturally as a result of increasing relief in the orogenic hinterland or a change in climatic conditions. We compare our results with observations from the Alps.
Margaux Mouchené, Peter van der Beek, Sébastien Carretier, and Frédéric Mouthereau
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The Lannemezan megafan (northern Pyrenean foreland) was abandoned during the Quaternary and subsequently incised. We use numerical models to explore possible scenarios for the evolution of this megafan. We show that autogenic processes are sufficient to explain its evolution. Climate may have played a second-order role; in contrast base-level change, tectonic activity and flexural isostatic rebound do not appear to have influenced its evolution.
J. Braun, C. Voisin, A. T. Gourlan, and C. Chauvel
Earth Surf. Dynam., 3, 1–14, https://doi.org/10.5194/esurf-3-1-2015, https://doi.org/10.5194/esurf-3-1-2015, 2015
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We have derived a simple solution to the stream power law equation governing the erosion of rapidly uplifting tectonic areas assuming that rainfall varies as a periodic function of time. We show that the erosional response of this forcing is characterized by an amplification of the resulting erosional flux variations as well as a time lag. We show how this time lag can be important in interpreting several geological observations.
T. Croissant and J. Braun
Earth Surf. Dynam., 2, 155–166, https://doi.org/10.5194/esurf-2-155-2014, https://doi.org/10.5194/esurf-2-155-2014, 2014
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Revised manuscript accepted for ESurf
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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 show that the new approach may provide chronological information over decadal to millennial timescales for boulders not datable by any other method so far.
David Mair, Alessandro Lechmann, Romain Delunel, Serdar Yeşilyurt, Dmitry Tikhomirov, Christof Vockenhuber, Marcus Christl, Naki Akçar, and Fritz Schlunegger
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Apolline Mariotti, Pierre-Henri Blard, Julien Charreau, Carole Petit, Stéphane Molliex, and the ASTER Team
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Lujendra Ojha, Ken L. Ferrier, and Tank Ojha
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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
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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
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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
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Lorenz Michel, Christoph Glotzbach, Sarah Falkowski, Byron A. Adams, and Todd A. Ehlers
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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
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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.
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
Brandon, M.: Decomposition of fission-track grain-age distributions,
Am. J. Sci., 292, 535–564, 1992. a
Braun, J.: Strong imprint of past orogenic events on the thermochronological
record, Tectonophysics, 683, 325–332, 2016. a
Brewer, I. D., Burbank, D. W., and Hodges, K. V.: Downstream development of a
detrital cooling-age signal: Insights from 40Ar/39Ar muscovite
thermochronology in the Nepalese Himalaya, in: Special Paper 398: Tectonics,
Climate, and Landscape Evolution, Geological Society of
America, 321–338, 2006. a, b
Brown, R.: Backstacking apatite fission track “stratigraphy”: a method for
resolving the erosional and isostatic rebound components of tectonic uplift
histories, Geology, 19, 74–77, 1991. a
Enkelmann, E. and Ehlers, T. A.: Evaluation of detrital thermochronology for
quantification of glacial catchment denudation and sediment mixing, Chem.
Geol., 411, 299–309, 2015. a
Enkelmann, E., Ehlers, T. A., Zeitler, P. K., and Hallet, B.: Denudation of
the Namche Barwa antiform, eastern Himalaya, Earth Planet. Sc. Lett., 307,
323–333, 2011. a
Garzanti, E. and Andò, S.: Heavy mineral concentration in modern sands:
implications for provenance interpretation, Elsevier,
Amsterdam, 567–598, 2007. a
Gleadow, A. and Brooks, C. K.: Fission track dating, thermal histories and
tectonics of igneous intrusions in East Greenland, Contrib. Mineral. Petr., 71, 45–60, 1979. a
Kellett, D. A., Grujic, D., Coutand, I., Cottle, J., and Mukul, M.: The South
Tibetan detachment system facilitates ultra rapid cooling of granulite-facies
rocks in Sikkim Himalaya, Tectonics, 32, 252–270, 2013. a
McPhillips, D. and Brandon, M.: Using tracer thermochronology to measure
modern relief change in the Sierra Nevada, California, Earth
Planet. Sc. Lett., 296, 373–383, 2010. a
Ruhl, K. W. and Hodges, K. V.: The use of detrital mineral cooling ages to
evaluate steady state assumptions in active orogens: An example from the
central Nepalese Himalaya, Tectonics, 24, TC4015, https://doi.org/10.1029/2004TC001712, 2005. a
Sambridge, M. and Compston, W.: Mixture modeling of multi-component data sets
with application to ion-probe zircon ages, Earth Planet. Sc. Lett., 128,
373–390, 1994. a
Singh, S. and France-Lanord, C.: Tracing the distribution of erosion in the
Brahmaputra watershed from isotopic compositions of stream sediments, Earth
Planet. Sc. Lett., 202, 645–662, 2002. a
Stock, G. M., Ehlers, T. A., and Farley, K. A.: Where does sediment come from?
Quantifying catchment erosion with detrital apatite (U-Th)/He
thermochronometry, Geology, 34, 725–728, 2006. a
Vermeesch, P.: Quantitative geomorphology of the White Mountains (California)
using detrital apatite fission track thermochronology, J. Geophys. Res.,
112, FO3004, https://doi.org/10.1029/2006JF000671, 2007. a
Vermeesch, P.: On the visualisation of detrital age distributions,
Comput. Geosci., 312, 190–194, 2012. a
Whipp, D. M., Ehlers, T. A., Braun, J., and Spath, C. D.: Effects of
exhumation kinematics and topographic evolution on detrital thermochronometer
data, J. Geophys. Res., 114, F04021, https://doi.org/10.1029/2008JF001195, 2009. a
Wobus, C. W., Hodges, K. V., and Whipple, K. X.: Has focused denudation
sustained active thrusting at the Himalayan topographic front?, Geology, 31,
861–864, 2003. a
Wobus, C. W., Whipple, K. X., and Hodges, K. V.: Neotectonics of the central
Nepalese Himalaya: Constraints from geomorphology, detrital 40Ar/39Ar
thermochronology, and thermal modeling, Tectonics, 25, TC4011, https://doi.org/10.1029/2005TC001935, 2006. a
Yin, A., Dubey, C., Kelty, T., Webb, A., Harrison, T., Chou, C., and
Célérier, J.: Geologic correlation of the Himalayan orogen and Indian
craton: Part 2. Structural geology, geochronology, and tectonic evolution of
the Eastern Himalaya, Geol. Soc. Am. Bull., 122, 360–395, 2010. a
Short summary
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.
We present a new method to interpret a type of data that geologists obtained by dating minerals...