Results 21 to 30 of about 413 (265)

Glacial erosion: status and outlook

Annals of Glaciology, 2019
Glacier-erosion rates range across orders of magnitude, and much of this variation cannot be attributed to basal sliding rates. Subglacial till acts as lubricating ‘fault gouge’ or ‘sawdust’, and must be removed for rapid subglacial bedrock erosion. Such
R. B. Alley, K. M. Cuffey, L. K. Zoet
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Genesis of schlottenkarren on the Avon Peninsula of Nova Scotia (Canada) with implications for the geochronology of evaporite karsts and caves of Atlantic Canada

International Journal of Speleology, 2017
Exposed schlottenkarren karst terrains developed on gypsum-anhydrite evaporites in the Canadian Maritime provinces might be post-Glacial landscape features (formed on glacially-denuded rocks after they are uncovered by progressive erosion of overlying ...
Max Moseley
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Reworked Middle Pleistocene deposits preserved in the core region of the Fennoscandian Ice Sheet

Quaternary Science Advances, 2020
During successive Pleistocene ice ages, Finnish Lapland lay under the cold-based centre of the Fennoscandian Ice Sheet (FIS). This area largely escaped deep glacial erosion by the fast-flowing wet-based ice streams that developed toward the periphery of ...
Niko Putkinen, Pertti Sarala, Nick Eyles, Heidi Daxberger, Jouni Pihlaja, Andrew Murray   +5 more
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Age of the Most Extensive Glaciation in the Alps

Geosciences, 2022
Previous research suggested that the Alpine glaciers of the Northern Swiss Foreland reached their maximum extensive position during the Middle Pleistocene.
Catharina Dieleman, Marcus Christl, Christof Vockenhuber, Philip Gautschi, Hans Rudolf Graf, Naki Akçar   +5 more
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Submarginal drumlin formation and late Holocene history of Fláajökull, southeast Iceland

Annals of Glaciology, 2016
Fláajökull is a non-surging outlet glacier draining the south-eastern part of the Vatnajökull, southeast Iceland. Fláajökull was stationary or advanced slightly between 1966 and 1995 and formed a prominent end moraine.
Sverrir Aðalsteinn Jónsson, Ívar Örn Benediktsson, Ólafur Ingólfsson, Anders Schomacker, Helga Lucia Bergsdóttir, William R. Jacobson, Hans Linderson   +6 more
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Geomorphology and shallow sub-sea-floor structures underneath the Ekström Ice Shelf, Antarctica [PDF]

The Cryosphere, 2022
The Ekström Ice Shelf is one of numerous small ice shelves that fringe the coastline of western Dronning Maud Land, East Antarctica. Reconstructions of past ice-sheet extent in this area are poorly constrained, due to a lack of geomorphological evidence.
A. Oetting, A. Oetting, E. C. Smith, E. C. Smith, J. E. Arndt, J. E. Arndt, B. Dorschel, R. Drews, T. A. Ehlers, C. Gaedicke, C. Hofstede, J. P. Klages, G. Kuhn, A. Lambrecht, A. Läufer, C. Mayer, R. Tiedemann, R. Tiedemann, F. Wilhelms, F. Wilhelms, O. Eisen, O. Eisen   +21 more
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SPM Effect in Glacial Till [PDF]

ASEG Extended Abstracts, 2015
SUMMARY The SPM effect is not traditionally associated with glacial tills. However, effects of viscous magnetization, i.e. superparamagnetism, are observed in many places in Northern Finland in high sensitivity and low frequency time domain ground EM surveys.
openaire   +1 more source

Subglacial deformation and till formation in a stratigraphic complex Late Pleistocene sequence (Einödgraben/Aurach, Kitzbühel Alps, Austria) [PDF]

Eiszeitalter und Gegenwart
Knowledge of subglacial conditions is of great relevance in understanding glacier dynamics. A combination of micro- and macrosedimentological analysis of diamictons and deformation structures can form the basis for the reconstruction of past subglacial ...
J. M. Reitner, J. Menzies
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Preliminary assessment of variability of selected Hardening Soil model parameters for glacial tills and clays from Poland [PDF]

E3S Web of Conferences, 2019
Typical ranges of variability of basic soil parameters are relatively well known. Such knowledge is important to aid engineers in the selection of characteristic values for design or as a basis for conducting sensitivity analyses for more complex soil ...
Bogusz Witold, Witowski Marcin
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Deep ice drilling, bedrock coring and dust logging with the Rapid Access Ice Drill (RAID) at Minna Bluff, Antarctica

Annals of Glaciology, 2021
Rapid Access Ice Drill is a new drilling technology capable of quickly accessing the glacial bed of Antarctic ice sheets, retrieving ice core and rock core samples, and providing boreholes for downhole logging of physical properties.
John W. Goodge, Jeffrey P. Severinghaus, Jay Johnson, Delia Tosi, Ryan Bay   +4 more
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