The characteristics of geophysical field and tectonic evolution in the Bransfield Strait

Bochu, Yao and Guangyu, Wang and Bangyan, Chen and Shengyuan, Chen (1995) The characteristics of geophysical field and tectonic evolution in the Bransfield Strait. Advances in Polar Science, 6 (1). pp. 12-23.

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Abstract

Having analyzed the data collected by our survey ship "Ocean IV" in the Bransfield Strait in 1991, we recognized that the geomorphology, gravity and magnetic anomalies trending NE direction along bandings. The sediments in the Bransfield Strait can be subdivided into two sequences: the first rifting sequence and the second rifting sequence. The basement was faulted into a half-graben in northwestern side of the Bransfield trough. Considering the crustal structure crossing the South Shetland Islands, the Bransfield Strait and the Antarctic Peninsula, we propose a two-phase rifting tectonic evolution model and a layered-shear model for the lithospheric deformation under the effects of extensional stress field.

Item Type: Article
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    Keywords: geophysical field, crustal structure, tectonic evolution, layered-shear model.
    Subjects: Unspecified
    Organizations: Unspecified
    Date Deposited: 17 Apr 2023 14:35
    URI: http://library.arcticportal.org/id/eprint/2088

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