Proposed Drilling in McMurdo Sound-1979
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概要
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The purpose of drilling is twofold. We expect to obtain a record of the early history of the East Antarctic Ice Sheet, and to date its initiation in the Ross Sea region. We also hope to relate the offshore sedimentary sequence in McMurdo Sound to the strata cored landward of the Transantarctic Mountain Front and hence gauge the extent of late Cenozoic movement. The project calls for continuous coring at two sites in western McMurdo Sound to 300m sub-bottom and in water 150m deep, using the annual ice as a drilling platform. Drilling would take place between about October 20 and December 10,1979. At the first site (MSS 1) 22km southeast of Marble Point, the drill is expected to pass through about 120m of Plio-Pleistocene basaltic sand and 160m of Miocene diamictite (glacial debris) before reaching the "pre-glacial" strata. At the second site (MSS 2) in New Harbor, the sequence will probably be entirely glacial and Miocene or possibly older in age. A total of 25 scientists and assistants will be required. The core will be measured, described, photographed and sampled, and then shipped to New Zealand for storage.
- 国立極地研究所の論文
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関連論文
- Sedimentology and Petrology of DVDP 15, Western McMurdo Sound, Antarctica (Abstract)
- Proposed Drilling in McMurdo Sound-1979