综述与评述

花岗岩构造与侵位机制研究进展

  • 杨坤光 ,
  • 刘强
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  • 中国地质大学地球科学学院,湖北 武汉 430074
杨坤光(1954-),男,安徽滁州人,教授,主要从事构造地质学的教学和科研工作.E-mail:dxy07@cug.edu.cn

收稿日期: 2001-11-05

  修回日期: 2002-01-25

  网络出版日期: 2002-08-01

基金资助

国家自然科学基金项目“大别山中生代花岗岩构造样式与变形序列研究”(编号:40172069)资助.

ADVANCES IN GRANITIC STRUCTURES AND EMPLACEMENT MECHANISMS

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  • Faculty of Earth Science, China University of Geosciences, Wuhan  430074, China

Received date: 2001-11-05

  Revised date: 2002-01-25

  Online published: 2002-08-01

摘要

近年来对造山带花岗岩构造与侵位机制的研究表明,花岗岩不但可以侵位在区域伸展的构造背景,也可以侵位在区域挤压(缩短)的构造背景。花岗岩侵位受断裂的控制并不是像以前认为的那样明显,而是受多种侵位机制的共同作用,而构造样式和变形组构则是侵位机制研究的基础。提出了一些新的研究思路和方法。此外,对大别山中生代花岗岩构造、侵位机制作了简要讨论。

本文引用格式

杨坤光 , 刘强 . 花岗岩构造与侵位机制研究进展[J]. 地球科学进展, 2002 , 17(4) : 546 -550 . DOI: 10.11867/j.issn.1001-8166.2002.04.0546

Abstract

 Great advances have been made on granitic structures and emplacement mechanisms in recent years. Studies on many granitoid plutons in different orogenic belts have got new conclusions: granitoid plutons not only emplaced in the regional extension setting, but also in the regional compressive (shortening) setting. The relationship between granitoid plutons and faults has been attentively investigated in orogenic belts recently. It is much unlikely thought before that emplaced granitoid pluton had been controlled by faults or fractures. In fact, the process of intruding and opening space must have been controlled by multiple emplacement mechanisms. Meanwhile, study on structural patterns and deformed fabrics of granitic pluton is the key to emplacement mechanisms. So we suggest some research ideas and  methods in this paper: studies on vertical structural pattern, use aluminium-in- hornblende  geobarometer  to determine an emplaced depth, tectonic analyses and deformation sequences, quantification studies on multiple emplacement mechanisms, etc. At last, we discuss the Mesozoic granitic structures and emplacement mechanisms in Dabie mountain orogen.  

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