文章基本信息

标题：The geology and age of Peter I Øy, Antarctica
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作者：Tore Prestvik ; Robert A. Duncan
期刊名称：Polar Research
印刷版ISSN：1751-8369
出版年度：1991
卷号：9
期号：1
页码：89-98
DOI：10.3402/polar.v9i1.6781
语种：English
出版社：Co-Action Publishing
摘要：The island Peter I 0y is located in the BeUinghausen Sea 400 km off the coast of West Antarctica. It is situated at the transition between oceanic and contintental crust close to a former transform fault, the Tharp fracture zone. The island is completely volcanic, consisting of predominantly alkali basalt and hawaiite and some more evolved rocks. Sampling done by the Aurora expedition in 1987 has made dating and detailed petrological studies possible. The island appears to be much younger (