助手标题
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
共[5]页 共[87]条 当前为第1条到20条
 

相关语句
ductile shear
These rocks occur exclusively in high-temperature ductile shear zones, which can develop either during the primary exhumation of rock complexes or during the overprinting by high-temperature dynamometamorphism.
      
Ductile shear zones developed in Archean granulite gneisses simultaneously with their exhumation, and, hence, their P-T trajectories are segments of decompression and/or isobaric cooling paths.
      
Straight gneisses in Proterozoic polymetamorphic complexes commonly compose high-temperature ductile shear zones overprinted on Archean granulite complexes, and the P-T paths of these rocks are Z-shaped.
      
Such ductile shear zones commonly have a strike-slip morphology and can be easily seen in aerial photographs and discerned during structural geological surveying.
      
Fluid participation in ductile shear zone: Evidence from geological, geochemical and13O/16O relations from south part of Tanchen
      
The large-scale ductile shear zone in Kuda, western Kunlun
      
Jingshan superlarge gold deposit is a typical deposit closely related to the ductile shear zone, developing the economic enrichment during the transition form the ductile deformation to the brittle deformation.
      
40Ar/39Ar geochronology and exhumation of mylonitized metamorphic complex in Changle-Nanao ductile shear zone
      
The40Ar/39 Ar plateau ages, K-Ar date of K-feldspar and other geochronologic information suggest that the exhumation rate of the ductile shear zone is about 0.18-1.12 mm/a in the range of 107-70 Ma, which is mainly influenced by tectonic extension.
      
A planar deformation analysis of this kind of ductile shear zone is carried out with the polar Mohr diagram.
      
Strain and shear types of the Louzidian ductile shear zone in southern Chifeng, Inner Mongolia, China
      
The Louzidian ductile shear zone at the south of Chifeng strikes NE-SW and dips SE at low-medium-angles.
      
This ductile shear zone is mainly composed of granitic mylonite, which grades structurally upward into a chloritized zone, a microbreccia zone, a brittle fault and a gouge zone.
      
These kinds of shear types only produce a/ab strain facies, so the lineation in the ductile shear zone could not deflect 90° in the progressively deformation.
      
The present profile of the ductile shear zone with consistent SW-dipping mineral elongation lineation shows antiform and reversed S-shape from northeast to southwest respectively.
      
Exposure structures, microstructures and quartz C-axis fabric all indicate top-to-SW movement for the ductile shear zone.
      
Intrusion of the Hongzhen granite with a biotite plateau age of 124.8±1.2 Ma rendered the ductile shear zone curved, uplifted and final localization of the core complex.
      
The control of ductile shear zones over gold mineralization could be explained in view of pressure solution of gold-bearing miner als under shearing stress and the resultant mobilization of this metal.
      
The shape and distribution of orebodies are controlled by brittle-ductile shear zones; (3) Multistage wall-rock alteration.
      
When brittle structures were formed locally in the ductile shear zone, the ore-forming fluids migrated to the structures along microfractures, and preciptated auriferous quartz because of reduction of pressure and temperature.
      
 

首页上一页12345下一页尾页 

 
CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社