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
| 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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Giulia Sinnl, Florian Adolphi, Marcus Christl, Kees C. Welten, Thomas Woodruff, Marc Caffee, Anders Svensson, Raimund Muscheler, and Sune Olander Rasmussen
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Robert Mulvaney, Eric W. Wolff, Mackenzie M. Grieman, Helene H. Hoffmann, Jack D. Humby, Christoph Nehrbass-Ahles, Rachael H. Rhodes, Isobel F. Rowell, Frédéric Parrenin, Loïc Schmidely, Hubertus Fischer, Thomas F. Stocker, Marcus Christl, Raimund Muscheler, Amaelle Landais, and Frédéric Prié
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We present an age scale for a new ice core drilled at Skytrain Ice Rise, an ice rise facing the Ronne Ice Shelf in Antarctica. Various measurements in the ice and air phases are used to match the ice core to other Antarctic cores that have already been dated, and a new age scale is constructed. The 651 m ice core includes ice that is confidently dated to 117 000–126 000 years ago, in the last interglacial. Older ice is found deeper down, but there are flow disturbances in the deeper ice.
Nathan Vandermaelen, Koen Beerten, François Clapuyt, Marcus Christl, and Veerle Vanacker
Geochronology, 4, 713–730, https://doi.org/10.5194/gchron-4-713-2022, https://doi.org/10.5194/gchron-4-713-2022, 2022
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We constrained deposition phases of fluvial sediments (NE Belgium) over the last 1 Myr with analysis and modelling of rare isotopes accumulation within sediments, occurring as a function of time and inverse function of depth. They allowed the determination of three superposed deposition phases and intercalated non-deposition periods of ~ 40 kyr each. These phases correspond to 20 % of the sediment age, which highlights the importance of considering deposition phase when dating fluvial sediments.
David Mair, Ariel Henrique Do Prado, Philippos Garefalakis, Alessandro Lechmann, Alexander Whittaker, and Fritz Schlunegger
Earth Surf. Dynam., 10, 953–973, https://doi.org/10.5194/esurf-10-953-2022, https://doi.org/10.5194/esurf-10-953-2022, 2022
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Grain size data are important for studying and managing rivers, but they are difficult to obtain in the field. Therefore, methods have been developed that use images from small and remotely piloted aircraft. However, uncertainty in grain size data from such image-based products is understudied. Here we present a new way of uncertainty estimation that includes fully modeled errors. We use this technique to assess the effect of several image acquisition aspects on grain size uncertainty.
Joanne Elkadi, Benjamin Lehmann, Georgina E. King, Olivia Steinemann, Susan Ivy-Ochs, Marcus Christl, and Frédéric Herman
Earth Surf. Dynam., 10, 909–928, https://doi.org/10.5194/esurf-10-909-2022, https://doi.org/10.5194/esurf-10-909-2022, 2022
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Glacial and non-glacial processes have left a strong imprint on the landscape of the European Alps, but further research is needed to better understand their long-term effects. We apply a new technique combining two methods for bedrock surface dating to calculate post-glacier erosion rates next to a Swiss glacier. Interestingly, the results suggest non-glacial erosion rates are higher than previously thought, but glacial erosion remains the most influential on landscape evolution.
Michael A. Schwenk, Laura Stutenbecker, Patrick Schläfli, Dimitri Bandou, and Fritz Schlunegger
E&G Quaternary Sci. J., 71, 163–190, https://doi.org/10.5194/egqsj-71-163-2022, https://doi.org/10.5194/egqsj-71-163-2022, 2022
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We investigated the origin of glacial sediments in the Bern area to determine their route of transport either with the Aare Glacier or the Valais Glacier. These two ice streams are known to have joined in the Bern area during the last major glaciation (ca. 20 000 years ago). However, little is known about the ice streams prior to this last glaciation. Here we collected evidence that during a glaciation about 250 000 years ago the Aare Glacier dominated the area as documented in the deposits.
Elena Serra, Pierre G. Valla, Romain Delunel, Natacha Gribenski, Marcus Christl, and Naki Akçar
Earth Surf. Dynam., 10, 493–512, https://doi.org/10.5194/esurf-10-493-2022, https://doi.org/10.5194/esurf-10-493-2022, 2022
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Alpine landscapes are transformed by several erosion processes. 10Be concentrations measured in river sediments at the outlet of a basin represent a powerful tool to quantify how fast the catchment erodes. We measured erosion rates within the Dora Baltea catchments (western Italian Alps). Our results show that erosion is governed by topography, bedrock resistance and glacial imprint. The Mont Blanc massif has the highest erosion and therefore dominates the sediment flux of the Dora Baltea river.
Ariel Henrique do Prado, Renato Paes de Almeida, Cristiano Padalino Galeazzi, Victor Sacek, and Fritz Schlunegger
Earth Surf. Dynam., 10, 457–471, https://doi.org/10.5194/esurf-10-457-2022, https://doi.org/10.5194/esurf-10-457-2022, 2022
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Our work is focused on describing how and why the terrace levels of central Amazonia were formed during the last 100 000 years. We propose to address this question through a landscape evolution numerical model. Our results show that terrace levels at lower elevation were established in response to dry–wet climate changes and the older terrace levels at higher elevations most likely formed in response to a previously higher elevation of the regional base level.
Alessandro Lechmann, David Mair, Akitaka Ariga, Tomoko Ariga, Antonio Ereditato, Ryuichi Nishiyama, Ciro Pistillo, Paola Scampoli, Mykhailo Vladymyrov, and Fritz Schlunegger
Geosci. Model Dev., 15, 2441–2473, https://doi.org/10.5194/gmd-15-2441-2022, https://doi.org/10.5194/gmd-15-2441-2022, 2022
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Muon tomography is a technology that is used often in geoscientific research. The know-how of data analysis is, however, still possessed by physicists who developed this technology. This article aims at providing geoscientists with the necessary tools to perform their own analyses. We hope that a lower threshold to enter the field of muon tomography will allow more geoscientists to engage with muon tomography. SMAUG is set up in a modular way to allow for its own modules to work in between.
Alexander R. Groos, Janik Niederhauser, Bruk Lemma, Mekbib Fekadu, Wolfgang Zech, Falk Hänsel, Luise Wraase, Naki Akçar, and Heinz Veit
Earth Syst. Sci. Data, 14, 1043–1062, https://doi.org/10.5194/essd-14-1043-2022, https://doi.org/10.5194/essd-14-1043-2022, 2022
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Continuous observations and measurements from high elevations are necessary to monitor recent climate and environmental changes in the tropical mountains of eastern Africa, but meteorological and ground temperature data from above 3000 m are very rare. Here we present a comprehensive ground temperature monitoring network that has been established between 3493 and 4377 m in the Bale Mountains (Ethiopian Highlands) to monitor and study the afro-alpine climate and ecosystem in this region.
Michael A. Schwenk, Patrick Schläfli, Dimitri Bandou, Natacha Gribenski, Guilhem A. Douillet, and Fritz Schlunegger
Sci. Dril., 30, 17–42, https://doi.org/10.5194/sd-30-17-2022, https://doi.org/10.5194/sd-30-17-2022, 2022
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A scientific drilling was conducted into a bedrock trough (overdeepening) in Bern-Bümpliz (Switzerland) in an effort to advance the knowledge of the Quaternary prior to 150 000 years ago. We encountered a 208.5 m-thick succession of loose sediments (gravel, sand and mud) in the retrieved core and identified two major sedimentary sequences (A: lower, B: upper). The sedimentary suite records two glacial advances and the subsequent filling of a lake sometime between 300 000 and 200 000 years ago.
Irene Schimmelpfennig, Joerg M. Schaefer, Jennifer Lamp, Vincent Godard, Roseanne Schwartz, Edouard Bard, Thibaut Tuna, Naki Akçar, Christian Schlüchter, Susan Zimmerman, and ASTER Team
Clim. Past, 18, 23–44, https://doi.org/10.5194/cp-18-23-2022, https://doi.org/10.5194/cp-18-23-2022, 2022
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Small mountain glaciers advance and recede as a response to summer temperature changes. Dating of glacial landforms with cosmogenic nuclides allowed us to reconstruct the advance and retreat history of an Alpine glacier throughout the past ~ 11 000 years, the Holocene. The results contribute knowledge to the debate of Holocene climate evolution, indicating that during most of this warm period, summer temperatures were similar to or warmer than in modern times.
Emilija Krsnik, Katharina Methner, Marion Campani, Svetlana Botsyun, Sebastian G. Mutz, Todd A. Ehlers, Oliver Kempf, Jens Fiebig, Fritz Schlunegger, and Andreas Mulch
Solid Earth, 12, 2615–2631, https://doi.org/10.5194/se-12-2615-2021, https://doi.org/10.5194/se-12-2615-2021, 2021
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Here we present new surface elevation constraints for the middle Miocene Central Alps based on stable and clumped isotope geochemical analyses. Our reconstructed paleoelevation estimate is supported by isotope-enabled paleoclimate simulations and indicates that the Miocene Central Alps were characterized by a heterogeneous and spatially transient topography with high elevations locally exceeding 4000 m.
Renas I. Koshnaw, Fritz Schlunegger, and Daniel F. Stockli
Solid Earth, 12, 2479–2501, https://doi.org/10.5194/se-12-2479-2021, https://doi.org/10.5194/se-12-2479-2021, 2021
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As continental plates collide, mountain belts grow. This study investigated the provenance of rocks from the northwestern segment of the Zagros mountain belt to unravel the convergence history of the Arabian and Eurasian plates. Provenance data synthesis and field relationships suggest that the Zagros Mountains developed as a result of the oceanic crust emplacement on the Arabian continental plate, followed by the Arabia–Eurasia collision and later uplift of the broader region.
Alexander R. Groos, Janik Niederhauser, Luise Wraase, Falk Hänsel, Thomas Nauss, Naki Akçar, and Heinz Veit
Earth Surf. Dynam., 9, 145–166, https://doi.org/10.5194/esurf-9-145-2021, https://doi.org/10.5194/esurf-9-145-2021, 2021
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Large sorted stone stripes have been discovered on the 4000 m high central Sanetti Plateau of the tropical Bale Mountains in Ethiopia. The stripes are a mystery as similar landforms have so far only been reported in the temperate zone and polar regions. Our investigations suggest that the stripes formed in the vicinity of a former ice cap on the plateau during a much colder climatic period. The distinct pattern is the result of a process related to cyclic freezing and thawing of the ground.
Anne-Marie Wefing, Núria Casacuberta, Marcus Christl, Nicolas Gruber, and John N. Smith
Ocean Sci., 17, 111–129, https://doi.org/10.5194/os-17-111-2021, https://doi.org/10.5194/os-17-111-2021, 2021
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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.
Leonie Peti, Kathryn E. Fitzsimmons, Jenni L. Hopkins, Andreas Nilsson, Toshiyuki Fujioka, David Fink, Charles Mifsud, Marcus Christl, Raimund Muscheler, and Paul C. Augustinus
Geochronology, 2, 367–410, https://doi.org/10.5194/gchron-2-367-2020, https://doi.org/10.5194/gchron-2-367-2020, 2020
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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
Short summary
Short summary
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
Short summary
Short summary
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.
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.
