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广东从化石岭碱性杂岩的岩石学特征及其地质意义

肖振宇 汪礼明 杨学明 杨晓勇   

  1. [1]中国有色金属工业总公司广东地质勘查局 [2]中国科学技术大学地示与空间科学系
  • 收稿日期:1998-06-20 修回日期:1998-06-20 出版日期:1998-06-20 发布日期:1998-06-20

PETROLOGICAL CHARACTERISTICS OF SHILING ALKALINE COMPLEX, CONGHUA, GUANGDONG PROVINCE, AND ITS GEOLOGICAL IMPLICATIONS

Xiao Zheng-yu1, Wang Li-ming1, Yang Xue-ming2, Yang Xiao-yong2   

  1. 1. Guangdong Bureau of Geological Survey, CNNC, Guangzhou 510080; 2. Department of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026; The Advanced Research Center for Earth Science and Astronomy, University of Science and Technology of China, The Third World Academy of Science, Hefei 230026
  • Received:1998-06-20 Revised:1998-06-20 Online:1998-06-20 Published:1998-06-20

摘要: 对广东从化石岭碱性杂岩体进行了1:1万地质调查和填图,并进行了详细的岩石力学研究。其结果表明:杂岩体由霞石角闪石正长岩、角闪石正长岩、墨云母正长岩等岩性组成,为A-型花岗岩的分异结晶作用所形成,产于板内引张构造环境,与深大断裂有关。岩体本身已构成霞石正长岩矿床,具有较高的工业利用和经济价值。

Abstract: On the basis of detailed geological investigation and mapping, this paper studies the petrological features of Shiling alkaline complex, Conghua, Guangdong Province. Which is mainly composed of nepheline-hornblende syenite, hornblende syenite and biotite syenite. The alkaline complex is formed by granite fractionation, occurs in intraplate extensional tectonic setting and is related to deep fault. It is significant that the complex itself is a nepheline syenite mineral deposit of industrial and economic values.