Results 71 to 80 of about 832 (174)

Refinement of the Quaternary seismic stratigraphy and analysis of buried glacial channels on the Labrador Shelf

Journal of Quaternary Science, Volume 41, Issue 7, Page 1141-1158, October 2026.
ABSTRACT The Laurentide Ice Sheet covered vast areas of North America during the Wisconsinan, including the Labrador Shelf, off the coast of eastern Canada. The shelf is characterized by glacial cross‐shelf troughs, which have been considered as predominantly eroded by the last ice advance.
Kai‐Frederik Lenz, Felix Gross, A. Catalina Gebhardt, Arne Lohrberg, Ralph Schneider, Henriette Kolling, Florian Riefstahl, Orlando Martinez Bautista, Viktoria Thamm, Sebastian Krastel   +9 more
wiley   +1 more source

Depositional and Hydrological Relationships Between Buried Dead Ice and the Active Layer in the McMurdo Dry Valleys, Antarctica: A Study of Sediment Geochemistry and Cation Concentrations

Permafrost and Periglacial Processes, Volume 37, Issue 4, Page 725-752, October/December 2026.
ABSTRACT The McMurdo Dry Valleys, the largest ice‐free region in Antarctica, are home to a cold‐desert hydrologic system of glaciers, snowbanks, streams, and lakes. Freshwater is also stored as dead glacial ice, which is poorly constrained in terms of ion concentrations and interactions with both in situ and overlying sediments.
Matthew C. Witscheber, Kate M. Swanger
wiley   +1 more source

ENVIRONMENT PROTECTION AND ENVIRONMENT MONITORING ISSUES IN THE PROJECTS OF SUBGLACIAL LAKES STUDIES IN ANTARCTICA

Лëд и снег, 2015
Antarctic subglacial lakes can represent extreme natural habitats for microorganisms from the position of their evolution and adaptation, as well as they can contain the information on Antarctic ice sheet history and climatic changes in their sediments ...
I. A. Alekhina, N. I. Vasiliev, V. Ya. Lipenkov   +2 more
doaj   +1 more source

A glaciotectonic landform in the Shyok valley, Trans-Himalayan Karakoram Range, India

Journal of Glaciology
This study reports and discusses the first case of glaciotectonic landforms in the Shyok valley of the Trans-Himalayan Karakoram Range, Ladakh, where a large decomposed granite megablock (8.2 km2) along with underlying diamicton is thrust over the ...
Abdul Qayoom Paul, Harish Bahuguna, Parveen Kumar   +2 more
doaj   +1 more source

Glacier sliding, seismicity and sediment entrainment

Annals of Glaciology, 2019
The evolution of glaciers and ice sheets depends on processes in the subglacial environment. Shear seismicity along the ice–bed interface provides a window into these processes. Such seismicity requires a rapid loss of strength that is typically ascribed
Bradley Paul Lipovsky, Colin R. Meyer, Lucas K. Zoet, Christine McCarthy, Dougal D. Hansen, Alan W. Rempel, Florent Gimbert   +6 more
doaj   +1 more source

Sedimentological and mineralogical characteristics of active glacial sediments in the Indian Himalaya regions

Geology, Ecology, and Landscapes, 2020
Glaciated sediments are a significant source to know the glacier environment processes. Glacial meltwater streams draining from the Himalayan glaciers carry with a different type of sediment sizes, because of the supraglacial, englacial, and subglacial ...
Sarfaraz Ahmad, Zabiullah Ansari, Mohd Mulhim   +2 more
doaj   +1 more source

Analysis of technologies and equipment for Antarctic subglacial lake research

Записки Горного института
Antarctica's subglacial hydrological system is a unique and still largely unexplored source of geological, paleoclimatic, and biological information that can be accessed only through direct investigation involving the sampling of water, suspended ...
Ilya V. Rakitin, Dmitrii A. Vasilev, Aleksei V. Bolshunov, Anatolii Yu. Ozhigin   +3 more
doaj  

Grain-size distribution and origins of unconsolidated fine sediments in ice-free areas, Soya Coast, East Dronning Maud Land, East Antarctica

Antarctic Record, 2005
Unconsolidated fine sediments (UFS), sporadically deposited in Soya Coast ice-free areas, have often been described as glacial deposits (till) or subglacial till in previous studies, but their genesis and depositional environments have never been ...
Shogo Iwasaki, Hideki Miura, Hideaki Maemoku   +2 more
doaj   +1 more source

Basal conditions at Engabreen, Norway, inferred from surface measurements and inverse modelling

Journal of Glaciology, 2018
Engabreen is an outlet glacier of the Svartisen Ice Cap located in Northern Norway. It is a unique glacier due to the Svartisen Subglacial Laboratory which allows direct access to the glacier bed.
ANNE M. SOLGAARD, ALEXANDRA MESSERLI, THOMAS SCHELLENBERGER, CHRISTINE S. HVIDBERG, ASLAK GRINSTED, MIRIAM JACKSON, THOMAS ZWINGER, NANNA B. KARLSSON, DORTHE DAHL-JENSEN   +8 more
doaj   +1 more source

Insights into glacial processes from micromorphology of silt-sized sediment [PDF]

The Cryosphere
Silt-rich meltwater plume deposits (MPDs) analyzed from marine sediment cores have elucidated relationships that are clearly connected, yet difficult to constrain, between subglacial hydrology, ice-marginal landforms, and grounding-zone retreat patterns ...
A. P. Lepp, L. E. Miller, J. B. Anderson, M. O'Regan, M. C. M. Winsborrow, J. A. Smith, C.-D. Hillenbrand, J. S. Wellner, L. O. Prothro, E. A. Podolskiy   +9 more
doaj   +1 more source