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九江—瑞昌地区中新生代滑脱构造研究

朱清波 杨坤光 程万强

中国地质2012,Vol.39Issue(5):1199-1210,12.
中国地质2012,Vol.39Issue(5):1199-1210,12.

九江—瑞昌地区中新生代滑脱构造研究

Mesozoic-Cenozoic gliding detachment in Jiujiang-Ruichang area

朱清波 1杨坤光 2程万强2

作者信息

  • 1. 南京地质矿产研究所,江苏南京210016
  • 2. 中国地质大学(武汉)构造与油气资源教育部重点实验室,湖北武汉430074
  • 折叠

摘要

Abstract

In Jiujiang—Ruichang area, there are multi— level, multi— period and multi— type gliding detachments. The basement detachment faults and the unconformity between Neoproterozoic and Sinian and Silurian are territorial detachments, which control the detachment structures. Deformations are different at different levels. Four detachment systems (Presinian basement, Cambrian — Ordoviciafi, Silurian, Devonian —Triassic) can be recognized. Different types of detachment structures were developed in different periods characterized by different backgrounds of geotectonics, which include extrusion detachment during Late —Jurassic to Early Cretaceous, extensional detachment in original Early Cretaceous (140Ma) and gravitational detachment in the late stage of Early Cretaceous period (113Ma).

关键词

滑脱构造/九瑞地区/39Ar-40Ar/中新生代

Key words

detachment structure /Jiujiang—Ruichang area/39Ar—40Ar/ Mesozoic—Cenozoic

分类

天文与地球科学

引用本文复制引用

朱清波,杨坤光,程万强..九江—瑞昌地区中新生代滑脱构造研究[J].中国地质,2012,39(5):1199-1210,12.

基金项目

国家自然科学基金项目(40972137)和中石化重大基础研究项目"中国南方中上扬子大陆构造与海相油气前景"联合资助. (40972137)

中国地质

OA北大核心CSCDCSTPCD

1000-3657

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