Holocene depositional environments and surface-level changes at Lake Fryxell, Antarctica
Autor: | Thomas Edward Whittaker, Chris H. Hendy, Brenda L. Hall, Sarah A. Spaulding |
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Rok vydání: | 2008 |
Předmět: | |
Zdroj: | The Holocene. 18:775-786 |
ISSN: | 1477-0911 0959-6836 |
DOI: | 10.1177/0959683608091797 |
Popis: | We report on Holocene surface-level variations of Lake Fryxell, Antarctica, as determined from multi-proxy analyses of 18 sediment cores. During this time accumulating sediments were predominantly aeolian sand with algal and carbonate laminae. Based on stratigraphy, mineralogy and diatom assemblages we suggest some carbonate laminae were deposited when lake level dropped, leading to concentration and subsequent precipitation of salts. Although lake level appears to have remained relatively stable throughout the Holocene, minor ( |
Databáze: | OpenAIRE |
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