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RESEARCH ON THE MICRO-MORPHOLOGY OF QUARTZ FROM FAULT GOUGES IN ZHUYING-GONGDA FAULT, SICHUAN PROVINCE

WU De-chao

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Abstract

Gouge is an information carrier for fault activity.The date of the fault activity can be identified by observation of the micro-morphologic characteristics of quartz in the gouges.In this paper,the dissolved micro-morphology of quartz,which are collected from the gouge of the Zhuying-Gongda fault belt in Sichuan Province,are observed and statistically analyzed by SEM.The result shows that the dissolved micro-morphology is not complicated.Comparing it with the diagram by Kanaori Y et al,it is indicated that the fault activity time was of Middle Pleistocene.This analysis is consistent with the dating value of the fault by ESR.

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What this paper is about

Gouge is an information carrier for fault activity.The date of the fault activity can be identified by observation of the micro-morphologic characteristics of quartz in the gouges.In this paper,the dissolved micro-morphology of quartz,which are collected from the gouge of the Zhuying-Gongda fault belt in Sichuan Province,are observed and statistically analyzed by SEM.The result shows that the dissolved micro-morphology is not complicated.Comparing it with the diagram by Kanaori Y et al,it is indicated that the fault activity time was of Middle Pleistocene.This analysis is consistent with the dating value of the fault by ESR.

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Available abstract

Gouge is an information carrier for fault activity.The date of the fault activity can be identified by observation of the micro-morphologic characteristics of quartz in the gouges.In this paper,the dissolved micro-morphology of quartz,which are collected from the gouge of the Zhuying-Gongda fault belt in Sichuan Province,are observed and statistically analyzed by SEM.The result shows that the dissolved micro-morphology is not complicated.Comparing it with the diagram by Kanaori Y et al,it is indicated that the fault activity time was of Middle Pleistocene.This analysis is consistent with the dating value of the fault by ESR.

Key concepts: Fault gouge, Geology, Quartz, Fault (geology), Fault plane, Pleistocene, Morphology (biology), Geochemistry

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