来自利比亚中西部Jabal Al Hasawnah的s型花岗岩

Journal of African Earth Sciences (1983) Pub Date : 1987-01-01 DOI:10.1016/0899-5362(87)90043-1

K.M. Oun, M.T. Busrewil

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引用次数: 2

摘要

泛非洲时代的白云母-黑云母花岗岩在利比亚中西部的Jabal Al Hasawnah露头。初步化学数据表明，该组份具有过铝化学性质，具有较高的Rb、Y和Nb微量元素。花岗岩的刚玉规范性质、化学性质和野外观测表明，它是由泥质沉积物(s型)的部分熔融形成的，可能是在“板块内”构造环境中形成的。

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S-type granite from Jabal Al Hasawnah, west central Libya

Muscovite-biotite granite of Pan-African age outcrops at Jabal Al Hasawnah, west central Libya. Preliminary chemical data indicates that the suite has a peraluminous chemistry and high Rb, Y, and Nb trace elements. The corundum normative nature of the granite, the chemistry, and field observations suggest that it was formed by partial melting of pelitic sediments (S-type), probably in a “within plate” tectonic environment.

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来源期刊

Journal of African Earth Sciences (1983)

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