A secular increase in continental crust nitrogen during the Precambrian [PDF]
, 2017 Recent work indicates the presence of substantial geologic nitrogen reservoirs in the mantle and continental crust. Importantly, this geologic nitrogen has exchanged between the atmosphere and the solid Earth over time. Changes in atmospheric nitrogen (i.
Goldblatt, Colin, Johnson, Benjamin W
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Relating in situ hydraulic conductivity, particle size and relative density of superficial deposits in a heterogeneous catchment [PDF]
, 2012 Estimating the permeability of superficial deposits is fundamental to many aspects of catchment science, but can be problematic where insufficient in situ measurements are available from pumping tests in piezometers.
Auton, C.A. +4 more
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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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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 +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 +5 more
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Examining the Contributions of Glacial Till Water to Storm Runoff using Two- and Three-Component Hydrograph Separations [PDF]
, 1994 Two- and three-component hydrograph separations based on 18O and dissolved silica are used to investigate the contributions of glacial till water to the storm runoff of a headwater stream on the Canadian Shield.
English, Michael C. +2 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 +21 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 +6 more
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Subglacial deformation and till formation in a stratigraphic complex Late Pleistocene sequence (Einödgraben/Aurach, Kitzbühel Alps, Austria) [PDF]
Eiszeitalter und GegenwartKnowledge 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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