Recent progress in studies on the nano-sized particle layer in rock shear planes  

Recent progress in studies layer in rock on the nano-sized particle shear planes

作　　者：Yan Sun Liangshu Shu Xiancai Lu Hao Liu Xihui Zhang Aiming Lin Kazuo Kosaka 

机构地区：[1]Department of Earth Sciences, State Key Laboratory of Mineral Deposites Research, Nanjing University, Nanjing 210093, China [2]Department of Management Information Systems, University of Memphis, Memphis, Tennessee 38152, USA [3]Department of Geosciences, Shizuoka University, Shizuoka 422-8529, Japan [4]Department of Geosystem Sciences, Nihon University, Tokyo 156-8550, Japan

出　　处：《Progress in Natural Science:Materials International》2008年第4期367-373,共7页自然科学进展·国际材料（英文版）

基　　金：National Natural Science Foundation of China（Grant Nos.40634022,40372092,40572118,and 40373024）;the State Key Laboratory of Geology and Exploitation of Petroleum Reservoir（PLN 0606）

摘　　要：Since the 1990s, an ultramicro-particle texture in nano- or micron-sized scale has been continually found in shear planes of various rocks, and recently further progress was made in generic physical mechanisms. In this article, the characteristics of the nano-sized particle layer in rock shear planes (including widespread distribution, layering texture, non-linear genetic mechanism, and multiple functions) on an ultra micro-scale were briefly introduced and more information was obtained by analyzing cases from home and abroad. Our findings suggest that (1) there is a paragenetic relationship between the development of shear frictional- viscous and the formation of nano-sized particles, and (2) in the shear movement, partitioning, segregating, and layering in rocks are initiated by the sliding motion of the nano-sized particle layer. Moreover, the plastic rheology of rocks is essentially the move- ment of ultra-micro-sized particles (nano-size and micro-size), and the nano-sized particle layer in rock shear planes is characterized by some particular physical and chemical effects.Since the 1990s, an ultramicro-particle texture in nano- or micron-sized scale has been continually found in shear planes of various rocks, and recently further progress was made in generic physical mechanisms. In this article, the characteristics of the nano-sized particle layer in rock shear planes （including widespread distribution, layering texture, non-linear genetic mechanism, and multiple functions） on an ultra micro-scale were briefly introduced and more information was obtained by analyzing cases from home and abroad. Our findings suggest that （1） there is a paragenetic relationship between the development of shear frictional- viscous and the formation of nano-sized particles, and （2） in the shear movement, partitioning, segregating, and layering in rocks are initiated by the sliding motion of the nano-sized particle layer. Moreover, the plastic rheology of rocks is essentially the movement of ultra-micro-sized particles （nano-size and micro-size）, and the nano-sized particle layer in rock shear planes is characterized by some particular physical and chemical effects.

关 键 词：Shear plane Nano-sized particle Frictional-viscous Plastic rheology High field strength elements 

分 类 号：P58[天文地球—岩石学]