Results 11 to 20 of about 708,716 (215)
Subglacial hydrology from high-resolution ice-flow simulations of the Rhine Glacier during the Last Glacial Maximum: a proxy for glacial erosion [PDF]
Eiszeitalter und Gegenwart, 2023 At the Last Glacial Maximum (LGM), the Rhine Glacier complex (Rhine and Linth glaciers) formed large piedmont lobes extending north into the Swiss and German Alpine forelands. Numerous overdeepened valleys there were formed by repeated glaciations.
D. Cohen +6 more
doaj +1 more source
Discrete element modeling of subglacial sediment deformation [PDF]
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE, 2013 The Discrete Element Method (DEM) is used in this study to explore the highly nonlinear dynamics of a granular bed when exposed to stress conditions comparable to those at the bed of warm-based glaciers. Complementary to analog experiments, the numerical approach allows a detailed analysis of the material dynamics and the shear zone development during ...
Anders Damsgaard +5 more
+8 more sources
Acta Universitatis Lodziensis. Folia Geographica Physica, 2021 The study presents the problem of complex genesis of eskers formed in N-channels on the example of an esker located near Tosie in east-central Poland.
Małgorzata Frydrych
doaj +1 more source
Ploughing of subglacial sediment [PDF]
Journal of Glaciology, 1994 AbstractMechanical conditions at the base of Trapridge Glacier, Yukon Territory, were investigated using a “ploughmeter”. We describe the physical characteristics and the theory of this new instrument as well as its operation. Observational results reveal variations in ploughmeter response that might be attributed to spatial variability in subglacial ...
URS H. Fischer, Garry K. C. Clarke
openaire +1 more source
Radar sounding survey over Devon Ice Cap indicates the potential for a diverse hypersaline subglacial hydrological environment [PDF]
The Cryosphere, 2022 Prior geophysical surveys provided evidence for a hypersaline subglacial lake complex beneath the center of Devon Ice Cap, Canadian Arctic; however, the full extent and characteristics of the hydrological system remained unknown due to limited data ...
A. Rutishauser +9 more
doaj +1 more source
Journal of Glaciology, 2021 The recently-advancing Taku Glacier is excavating subglacial sediments at high rates over multi-decadal timescales. However, sediment redistribution over shorter timescales remains unquantified.
Jenna M. Zechmann +4 more
doaj +1 more source
Sediment oxygen consumption in
Limnology and Oceanography, 2023 AbstractOxygen consumption in aquatic sediments is an indicator of overall biological activity of the ecosystem. As such, rates of sedimentary oxygen utilization are well documented for much of the open oceans and freshwater lakes. However, there are few direct measurements of sedimentary oxygen consumption from Antarctic subglacial aquatic sediments ...
Alexander B. Michaud, John C. Priscu
openaire +2 more sources
Tracking coarse sediment in an Alpine subglacial channel using radio-tagged particles
Journal of Glaciology, 2023 We present a method for tracking radio-tagged pebbles and cobbles through subglacial meltwater channels under shallow temperate glaciers. Natural particles tagged with active radio transmitters were injected directly into a large subglacial channel 300 m
Matt Jenkin +6 more
doaj +1 more source
, 2020 In order to determine chemical weathering rates on the subglacial land surface of Antarctica, we compare the composition and mineralogy of freshly emerging fine sediments to that of the underlying bedrock, as represented by glacially derived cobble-sized
J. Graly, K. Licht, N. Bader, D. Bish
semanticscholar +1 more source
Subglacial Sediment Plumes in Greenland
, 2022 This is a data dump of the output from the Bachelor of Science Senior Thesis "Subglacial Sediment Plumes in Greenland" ( https://scholarsphere.psu.edu/resources/1315c9d5-83bf-4c53-a502-766d63f56e70)
Dibert, John P, Dr. Ken Mankoff
openaire +1 more source