Geological Features and Significance of Thrust Ductile Deformation Belt of Gongyiming-Gaojiacun at Northern Daqingshan in Inner Mongolia
详细信息
- 责任者：Jiang Zhiquan (Inner Mongolia Second Hydrogeological Exploration Institute ; Hohhot 017000 ; China) ; Li Manhuan
- 刊名：Jilin Geology
- 出版年：2013
- 卷期：32(1)
- 关键词：韧性剪切带 ; ductile shear zones ; 内蒙古 ; Inner Mongolia
- 页码：p.14-19
- 图表：illus., 10 refs.
- 分类号：0300
- issnNo：ISSN1001-2427
- isbnNo：CN22-1099/P
摘要
Gongyiming-Gaojiacun ductile deformation belt is located in near the contact zone of the Archean granite greenstone belt and high-grade metamorphic rock,in space nearly EW direction,being thrust ductile deformation belt from north to south.The ductile belt was modified by two deformation phases,the early deformationwhich was mainly ductile deformation mechanism,took place in the conditions of amphibolite facies of deep crustal tectonic levels.The late deformation one,which was mainly ductile-brittle deformation mechanism,took place in middle-shallow tectonic level of the crust.In ductile deformation belt,the main tectonite is the tectonic schist,which was consist of new flaky minerals and fibrous minerals.The macrograph and micrograph asymmetrical flow fabrics shows that movement direction of ductile deformation belt was thrusting from north to south.The ductile compression thrust deformation took place in late Archean,being relate to the collision between the northern granite greenstone belt and the southern high-grade metamorphic rock.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |