Abstract
Clay minerals in seven shallow water (100 to 600 m deep) dredged samples and in two deep-sea (3,000 to 5,000 m deep) core samples near West Antarctica were investigated by X-ray diffraction analyses. Variation of montmorillonite concentration appears to be closely related to volcanic activity. Chlorite is the most dominant constituent in most of the dredged samples, though it is not a principal component in core samples. Illite concentration is negatively correlated to that of montmorillonite. Kaolinite is found in four out of seven dredged samples near and around the Antarctic Peninsula while the content of kaolinite in two deep-sea cores from the Pacific-Antarctic Basin and the Indian-Antarctic Basin is more abundant than in the dredged samples. The clay mineral composition in the latter two basins may be closely related to volcanic activity and mechanical weathering products near and on Antarctica.
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Aoki, S., Oinuma, K. Clay mineral composition in shallow water sediment samples near the Antarctic Peninsula and in deep-sea core samples from the pacific and the Indian-Antarctic Basins. Journal of the Oceanographical Society of Japan 36, 23–29 (1980). https://doi.org/10.1007/BF02209351
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DOI: https://doi.org/10.1007/BF02209351