Shoshonitic intrusive suite in SE Guangxi: Petrology and geochemistry

被引：0

作者：

LI Xianhua ZHOU Hanwen LIU Ying LEE Chiyu SUN Min CHEN Chenhong Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou China ^{[510640
]}

Department of Earth Sciences University of Hong Kong Pokfulam Road Hong Kong China

Department of Geology Taiwan University Taipei China ^{[106
,17
]}

机构：

来源：

ChineseScienceBulletin | 2000年 / 07期

关键词：

shoshonitic rocks; petrology; element geochemistry; Guangxi;

D O I：

暂无

中图分类号：

P595 [元素地球化学];

学科分类号：

070902 ;

摘要：

<正> A NE-direction Mesozoic shoshonitic intrusive s黫te in SE Guangxi has been identified in terms of geological, petrological and geochemical investigations. The shoshonitic intrusives are characterized by enrichment of LILE, HFSE and LREE and no obvious Nb-Ta depletion, similar to those potassic rocks formed in within-plate and rifting environments. Unlike most shoshonitic rocks forming in arc settings, the SE Guangxi shoshonitic intrusives were likely generated during regional lithosphere extension induced by upwelling of asthenosphere mantle.

引用

页码：653 / 659

页数：7