大别山南缘(团陂-马垅剖面)构造变形分析及意义  

Analysis of the structural deformation of rocks at the southern margin of Dabie Mountain(Tuanpi-Malong area)and its significance

作　　者：陈泽超[1] 宋传中[1] 黄文成[1] 连芸[1] 蔡志川[1] 

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2009年第9期1394-1398,共5页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(40772131);中石化基础研究资助项目(09-02)

摘　　要：大别造山带自形成以来经历了早期扬子板块向华北板块的俯冲碰撞，以及后造山伸展阶段的伸展滑脱，岩层中保留了多期的构造变形记录，导致俯冲碰撞期的构造变形难以识别。文章重点研究大别山南缘团陂至马垅这一剖面，通过野外的宏观构造及室内显微构造分析，得知该地区岩石的有限应变测量值为1.5-2.0，岩石形成温度为300-700℃，并探讨大别造山带南缘俯冲期的构造变形记录。The Dabie Mountain＇s structural formation has experienced the early diving collision of Yan-gtze plate to the North China Plate and extension detachment of the post-orogenic extension phase. The structural deformations which occurred in different periods have been recorded in rocks, but the tectonic deformation at the subduction-collision period is hard to identify. The paper focuses on the southern edge of the Dabie Mountain area and finds the vestiges of the collision event in rocks through the analysis of macro-structure, microstructure and limited strains. The finite strain observed value is 1.5-2.0, and the rock formation temperature is between 300℃ and 700℃.The tectonic evolution of the southern margin of the Dabie Mountain area is also discussed.

关 键 词：大别造山带 俯冲构造 岩石有限应变 变形 

分 类 号：P542.2[天文地球—构造地质学]