Clay and smectite analysis of sediment core CRP-2A, supplement to: Ehrmann, Werner (2000): Smectite content and crystallinity in sediments from CRP-2/2A, Victoria Land Basin, Antarctica. Terra Antartica, 7(4), 575-580

Werner Ehrmann
Sediments of the CRP-2/2A drill core from the continental shelf of McMurdo Sound in Ross Sea, Pacific sector of the Southern Ocean, have been investigated for their clay mineral assemblages, especially for the smectite contents and smectite crystallinities. Highest smectite amounts and best crystallinities occur in three intervals below 485 mbsf in CRP-2/2A. They indicate deposition of sediments during a time when chemical weathering was active on large ice-free areas on the nearby Antarctic continent....
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