Articles | Volume 4, issue 1
https://doi.org/10.5194/esurf-4-125-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/esurf-4-125-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Efficacy of bedrock erosion by subglacial water flow
Department of Earth Sciences, Simon Fraser University, 8888 University Drive, V5A 1S6, Burnaby, BC, Canada
G. E. Flowers
Department of Earth Sciences, Simon Fraser University, 8888 University Drive, V5A 1S6, Burnaby, BC, Canada
J. G. Venditti
Department of Geography, Simon Fraser University, 8888 University Drive, V5A 1S6, Burnaby, BC, Canada
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35 citations as recorded by crossref.
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- A Model for the Formation of Eskers I. Hewitt & T. Creyts 10.1029/2019GL082304
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- Topographic Controls on Channelized Meltwater in the Subglacial Environment L. Simkins et al. 10.1029/2021GL094678
- Proglacial erosion rates and processes in a glacierized catchment in the Swiss Alps I. Delaney et al. 10.1002/esp.4239
34 citations as recorded by crossref.
- Filtering of the Signal of Sediment Export From a Glacier by Its Proglacial Forefield D. Mancini et al. 10.1029/2023GL106082
- Modeling glacial and fluvial landform evolution at large scales using a stream-power approach S. Hergarten 10.5194/esurf-9-937-2021
- Paleofluvial and subglacial channel networks beneath Humboldt Glacier, Greenland S. Livingstone et al. 10.1130/G38860.1
- The geometry and complexity of spatial patterns of terrestrial channel networks: Distinctive fingerprints of erosional regimes A. Grau Galofre & A. Jellinek 10.1002/2016JF003825
- A model for interaction between conduits and surrounding hydraulically connected distributed drainage based on geomorphological evidence from Keewatin, Canada E. Lewington et al. 10.5194/tc-14-2949-2020
- Modelling alpine glacier geometry and subglacial erosion patterns in response to contrasting climatic forcing F. Magrani et al. 10.1002/esp.5302
- Tunnel valley formation beneath deglaciating mid-latitude ice sheets: Observations and modelling J. Kirkham et al. 10.1016/j.quascirev.2022.107680
- Warming-driven erosion and sediment transport in cold regions T. Zhang et al. 10.1038/s43017-022-00362-0
- Thermo-Mechanical Regime of the Greenland Ice Sheet and Erosion Potential of the Crystalline Bedrock Z. Li & T. Nguyen 10.3390/min11020120
- Advances in understanding subglacial meltwater drainage from past ice sheets L. Simkins et al. 10.1017/aog.2023.16
- A Multi-Physics Experiment with a Temporary Dense Seismic Array on the Argentière Glacier, French Alps: The RESOLVE Project F. Gimbert et al. 10.1785/0220200280
- A Model for the Formation of Eskers I. Hewitt & T. Creyts 10.1029/2019GL082304
- Glacial erosion: status and outlook R. Alley et al. 10.1017/aog.2019.38
- On the morphological characteristics of overdeepenings in high‐mountain glacier beds W. Haeberli et al. 10.1002/esp.3966
- A Numerical Model for Fluvial Transport of Subglacial Sediment I. Delaney et al. 10.1029/2019JF005004
- Subglacial lakes and their changing role in a warming climate S. Livingstone et al. 10.1038/s43017-021-00246-9
- The infill of tunnel valleys in the central North Sea: Implications for sedimentary processes, geohazards, and ice-sheet dynamics J. Kirkham et al. 10.1016/j.margeo.2023.107185
- Sediment yield over glacial cycles: A conceptual model G. Antoniazza & S. Lane 10.1177/0309133321997292
- Regional stagnation of the western Keewatin ice sheet and the significance of meltwater corridors and eskers, northern Canada D. Sharpe et al. 10.1139/cjes-2020-0136
- Declining Basal Motion Dominates the Long‐Term Slowing of Athabasca Glacier, Canada W. Armstrong et al. 10.1029/2021JF006439
- Modeling Sediment Transport in Ice‐Walled Subglacial Channels and Its Implications for Esker Formation and Proglacial Sediment Yields F. Beaud et al. 10.1029/2018JF004779
- Glacial overdeepenings in the Swiss Alps and foreland: Spatial distribution and morphometrics F. Magrani et al. 10.1016/j.quascirev.2020.106483
- Struggles with stream power: Connecting theory across scales J. Venditti et al. 10.1016/j.geomorph.2019.07.004
- Glacial Erosion Rates Determined at Vorab Glacier: Implications for the Evolution of Limestone Plateaus O. Steinemann et al. 10.3390/geosciences11090356
- Effects of basal topography and ice-sheet surface slope in a subglacial glaciofluvial deposition model D. Stevens et al. 10.1017/jog.2022.71
- Deformation of salt structures by ice-sheet loading: insights into the controlling parameters from numerical modelling J. Lang & A. Hampel 10.1007/s00531-023-02295-5
- Subglacial Water Flow Over an Antarctic Palaeo‐Ice Stream Bed K. Hogan et al. 10.1029/2021JF006442
- Glacier melt runoff controls bedload transport in Alpine catchments F. Comiti et al. 10.1016/j.epsl.2019.05.031
- The impact of glaciers on mountain erosion F. Herman et al. 10.1038/s43017-021-00165-9
- Excavation of subglacial bedrock channels by seasonal meltwater flow F. Beaud et al. 10.1002/esp.4367
- Neogene‐Quaternary Uplift and Landscape Evolution in Northern Greenland Recorded by Subglacial Valley Morphology G. Paxman et al. 10.1029/2021JF006395
- Grain Size in Landscapes L. Sklar 10.1146/annurev-earth-052623-075856
- Glacial erosion by the Trift glacier (Switzerland): Deciphering the development of riegels, rock basins and gorges O. Steinemann et al. 10.1016/j.geomorph.2020.107533
- Topographic Controls on Channelized Meltwater in the Subglacial Environment L. Simkins et al. 10.1029/2021GL094678
1 citations as recorded by crossref.
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Latest update: 21 Nov 2024
Short summary
In regions formerly, or currently, covered by glaciers, landscapes have largely been shaped by glaciers. Glaciers erode bedrock through three main mechanisms: abrasion, quarrying, and subglacial meltwater erosion (SME). The latter, however, remains enigmatic. We present the first numerical modelling study of bedrock erosion by subglacial water and find that SME is negligible compared to abrasion and quarrying across the glacier, but its localization can explain the formation of bedrock channels.
In regions formerly, or currently, covered by glaciers, landscapes have largely been shaped by...