摘要
不同期次不同体系的推覆构造在同一地区相叠加而形成的复式推覆构造叫叠加型推覆构造，汉南－米仓山推覆构造便是典型一例。印支－燕山期，受秦岭巨型推覆构造控制，本区形成东西向的推覆构造，喜马拉雅期，在龙门山推覆构造影响下，本区又发育北东向推覆构造，从而形成一大型推覆构造带。本文重点论述了米仓山地区叠加型推覆构造几何结构及构造演化。
HanNan Micangshan nappe structure is a superposed nappe structure resulted from the superposition of nappe structures of different episodes and systems.During the Indo sinina epoch,the E-W trend nappe structure was formed under the control of the large scaled Qinling nappe structure and the northeast trend nappe structure was developed during the Himalayan epoch under the control of Longmenshan nappe structure,forming a large scaled superposed nappe structure belt in this area.This paper describes the geometrical texture and structural evolution of the superposed nappe structure in the Micangshan area.
出处
《矿物岩石》
CAS
CSCD
北大核心
1998年第S1期22-26,共5页
Mineralogy and Petrology
基金
国家计委"八.五"重点攻关项目
关键词
推覆构造
叠加型推覆构造
几何结构
构造演化
米仓山
nappe structure superposed nappe structure geometrical texture structural evalution Micangshan
