glacial erosion
Ancient pre-glacial erosion surfaces preserved beneath the West Antarctic Ice Sheet
... the erosion surfaces occurred during periods of intermediate ice sheet cover ...of glacial incision between the valleys ...by glacial erosion downstream of these major mountain ...incised, ...
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High lability Fe particles sourced from glacial erosion can meet previously unaccounted biological demand: Heard Island, Southern Ocean
... within glacial outflow near Heard Island were relatively fresh, leading to the higher chemical lability we observed, in comparison to highly refractory minerals such as ilmenite collected ubiquitously around both ...
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Ice flow models and glacial erosion over multiple glacial–interglacial cycles
... the glacial erosion rate, subglacial topography, glacier thick- ness, and sediment thickness; these primary outputs are ana- lyzed for the rest of the ...SIA glacial-flow physics and with the HO ...
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DECIPHERING THE FINEST IMPRINT OF GLACIAL EROSION: OBJECTIVE ANALYSIS OF STRIAE PATTERNS ON BEDROCK
... The aim of this study is to compare the efficiency of different mathematical and statistical geometrical methods applied to characterise the orientation distribution of striae on bedrock for deciphering the finest ...
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Investigating processes of glacial erosion and cirque formation by numerical modeling and field observations in the Southern Sierra Nevada, California
... the erosion rate of rivers (Hallet et ...by glacial bedrock erosion can cause isostatic uplift of peaks, disrupting weather patterns with consequent effects on global climate (Molnar and England, ...
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Patterns of glacial erosion and deposition in Prydz Bay and the past behaviour of the Lambert Glacier
... 1979 showed that abrasion by ice depended on vertical stress as much as ice velocity, thus explaining the common observation of maximum depths of erosion beneath the thickest parts of gl[r] ...
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Glacial limitation of tropical mountain height
... Last Glacial Maximum (LGM) ELA estimated around the tropics ...during glacial periods in the Late Pleistocene ...Where glacial landforms are dated to the LGM such bias is likely negligi- ...the ...
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Subglacial basins: Their origin and importance in glacial systems and landscapes
... by glacial erosion of subglacial rock and/or sediment and are known as ...pre glacial (usually tectonic) ...the glacial system, the efficiency of which is dependent upon the gradient of the ...
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Ice-stream flow switching by up-ice propagation of instabilities along glacial marginal troughs
... Abstract. Ice-stream networks constitute the arteries of ice sheets through which large volumes of glacial ice are rapidly delivered from the continent to the ocean. Modifications in ice-stream networks have a ...
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Erosional response of an actively uplifting mountain belt to cyclic rainfall variations
... between glacial and non-glacial periods, such as the strength of the monsoon, or the latitudinal dis- tribution of precipitation (Rossignolstrick, 1983; Prell and Kutzbach, 1987; Demenocal and Rind, 1993; ...
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Climatic and glacial impact on erosion patterns and sediment provenance in the Himalayan rain shadow, Zanskar River, NW India
... focused glacial erosion and monsoonal rainfall along the Greater Himalaya and Zanskar Shear ...of erosion in Zanskar is not directly controlled by monsoonal rainfall as is the case in the frontal ...
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Arctic–alpine blockfields in the northern Swedish Scandes: late Quaternary – not Neogene
... of glacial isostasy on these calculations, we used a 3-dimensional ice-dynamical model forced by the Lisiecki and Raymo (2005) stack of global benthic δ 18 O records and an ELRA bedrock ...best glacial ...
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The sedimentology of Holocene Prydz Bay : sedimentary patterns and processes
... Terrigenous material is entrained by basal glacial erosion and introduced to the sea via iceberg rafting, meltout, and rollover in the periphery of Prydz Bay where iceberg drift tracks a[r] ...
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Changing glacial lakes and associated outburst floods risks in Nanda Devi Biosphere Reserve, Indian Himalaya
... in glacial and periglacial mountain regions in response to climate change due to their higher level of sensitivity (Barry 1990, Couture and Pollard 2007, Mal and Singh ...including glacial de-buttressing, ...
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Mapping the Late Holocene Glacial Geomorphology and Glacier Surface Types in the Mt Harajoriha, Central Tian Shan
... DOI: 10.4236/ijg.2019.106038 671 International Journal of Geosciences glaciers is often directly illustrated with the highly dynamic glacio-fluvial and geomorphic processes in a short distance (a few kilometers) ...
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Glacial geomorphology of the northern Kivalliq region, Nunavut, Canada, with an emphasis on meltwater drainage systems
... 3(C,D)). Glacial lineations reflect different ice-flow phases, with principal flows aligned E–W (in the southern part) and S – N (in the ...as glacial lineations, though we note some uncertainty in this ...
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Anthropic erosion of mountain land in Canterbury
... A quantitative measure of regional soil disturbance, if we knew how to measure it, would be a statistical magnitude-frequency distribution, giving information on the return periods of various volumes or areas of soil ...
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The Takahe - a Relict of the Pleistocene Grassland Avifauna of New Zealand
... swamps at this time, and had declined. . It is known that the bird survived in Northland and Hawkes Bay in the early Holocene and in the Ruahine Range, Taranaki, Nelson, Otago and Southland in early Maori times. The ...
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Salinity changes in the Agulhas leakage area recorded by stable hydrogen isotopes of C 37 alkenones during Termination I and II
... early glacial periods and gradually extending over the glacial termination phases (Martinez-Mendez et ...during glacial periods when salinity was likely elevated (Ferguson et ...
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Glacial areas, lake areas, and snow lines from 1975 to 2012: status of the Cordillera Vilcanota, including the Quelccaya Ice Cap, northern central Andes, Peru
... recent glacial-area changes and how the glaciers in this region respond to climate changes, and, ultimately, how these changes will affect lake and water ...tain glacial- and lake-area outlines for the ...
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