Siliceous subglacial deposits: archives of subglacial processes during the Last Glacial Maximum
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چکیده
منابع مشابه
The influence of Antarctic subglacial volcanism on the global iron cycle during the Last Glacial Maximum
Marine sediment records suggest that episodes of major atmospheric CO2 drawdown during the last glacial period were linked to iron (Fe) fertilization of subantarctic surface waters. The principal source of this Fe is thought to be dust transported from southern mid-latitude deserts. However, uncertainty exists over contributions to CO2 sequestration from complementary Fe sources, such as the An...
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References html#ref-list-1 http://rspa.royalsocietypublishing.org/content/466/2123/3181.full. This article cites 30 articles, 3 of which can be accessed free Subject collections (17 articles) glaciology (81 articles) mathematical modelling Articles on similar topics can be found in the following collections Email alerting service here the box at the top right-hand corner of the article or...
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We used 5704 14C, 10Be, and 3He ages that span the interval from 10,000 to 50,000 years ago (10 to 50 ka) to constrain the timing of the Last Glacial Maximum (LGM) in terms of global ice-sheet and mountain-glacier extent. Growth of the ice sheets to their maximum positions occurred between 33.0 and 26.5 ka in response to climate forcing from decreases in northern summer insolation, tropical Pac...
متن کاملSubglacial swamps
The existence of both water and sediment at the bed of ice streams is well documented, but there is a lack of fundamental understanding about the mechanisms of ice, water and sediment interaction. We pose a model to describe subglacial water flow below ice sheets, in the presence of a deformable sediment layer. Water flows in a rough-bedded film; the ice is supported by larger clasts, but there...
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ژورنال
عنوان ژورنال: Journal of Glaciology
سال: 2021
ISSN: 0022-1430,1727-5652
DOI: 10.1017/jog.2021.42