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Observation of ultra-microtexture of

时间:2021-12-07 17:44:58 天文地理论文 我要投稿

Observation of ultra-microtexture of fault rocks in shearing-sliding zones

Based on scanning electronic microscopic observation of three fault rocks in ductile-brittle shearing-sliding zones (including one palimpsest mylonite sampled from deep bore cores of Cajon Pass, California, two flowing-structured carbargillites sampled from Shaancan Well 1 located in north Shaanxi, and Well NH located in Huanghai, respectively), micron- and nanometer-scaled ultra-fine grinding grain texture of fault rocks is discovered in this study. And the geological significance of grinding grain texture is discussed in terms of its particulate organization, rheology of particulate slipping, laminar petrography and micro dynamics including dynamothermal metamorphism, fluid transferring, particulate autorotation, and so on. In addition, the remaining problems to be solved and broad prospects in this new study field are also discussed.

作 者: SUN Yan LU Xiancai SHU LiangShu GU Lianxing ZHU Wenbin GUO Jichun LIN Aiming   作者单位: SUN Yan,LU Xiancai,SHU LiangShu,GU Lianxing,ZHU Wenbin,GUO Jichun(State Key Laboratory of Mineral Deposits Research, Department of Earth Sciences, Nanjing University, Nanjing 210093, China)

LIN Aiming(Department of Geosciences, Shizuoka University, Shizuoka 836, Japan) 

刊 名: 自然科学进展(英文版)  SCI 英文刊名: PROGRESS IN NATURAL SCIENCE  年,卷(期): 2005 15(5)  分类号: P5  关键词: ductile-brittle shearing zone   fault rock   texture of grinding grain   rheology of particulate slipping