东秦岭-大别造山带中新生代盆地构造特征与形成机制

张淼; 云金表

doi:10.11781/sysydz201602183

东秦岭-大别造山带中新生代盆地构造特征与形成机制

doi: 10.11781/sysydz201602183

张淼,
云金表

中国石化石油勘探开发研究院, 北京 100083

基金项目: 国家科技重大专项(2011ZX05005)资助。

详细信息

作者简介:
张淼(1983-),男,博士,工程师,从事构造地质学研究。E-mail:zhangmiao.syky@sinopec.com。

中图分类号: P542.2
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出版历程
- 收稿日期: 2015-03-04
- 修回日期: 2016-01-26
- 刊出日期: 2016-03-28

Mechanics and evolution of Mesozoic and Cenozoic basins in the East Qinling-Dabie Orogenic Belt

SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China

摘要

摘要: 东秦岭-大别造山带中新生代伸展-走滑关联断裂体系控制的中新生代盆地与大别地区变质核杂岩组成了完整的伸展拆离体系。盆地沿北西西与北东向基底断裂带分布特征、盆地沉降方向的转变过程以及与造山带北侧前陆盆地体系的时空分布关系,均揭示盆地群的发育经历了造山挤压与区域伸展2个发育阶段。它与东秦岭-大别造山带由挤压到造山后伸展的演化过程具有同步特点。综合造山带深部地球物理特征、造山后期"气球膨胀式"花岗质杂岩的发育过程,推断造山带上叠伸展盆地具有区域伸展与造山带深部调整双重体制动力。盆地群的形成是东秦岭-大别造山带陆内俯冲、松弛与区域伸展共同控制形成的产物。
- 伸展盆地 /
- 前陆盆地 /
- 造山松弛 /
- 东秦岭-大别造山带
Abstract: In the East Qinling-Dabie Orogenic Belt, the Mesozoic and Cenozoic basins controlled by the Mesozoic and Cenozoic stretching and strike-slip faults formed a complete stretching and detachment system together with metamorphic core complexes in Dabie area. These basins have experienced two evolution stages including orogenic extrusion and regional extension in response to the NWW and NE oriented basement faults, the changes of basin subsidence direction, and the time-space relationship of foreland basins to the north of the orogenic belt, which is in accordance with the evolution history of the East Qinling-Dabie Orogenic Belt. The geophysical characteristics of deep formations in the orogenic belt and the generation of granite complex during the late stage of orogenic movement showed that the basins in the orogenic belt were controlled by regional extension and deep adjustment. The basins were formed due to the subduction and relaxation of the East Qinling-Dabie Orogenic Belt and regional extension.
- extensional basin /
- foreland basin /
- orogenic relaxation /
- East Qinling-Dabie Orogenic Belt

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