@phdthesis{oai:nagoya.repo.nii.ac.jp:00010574,
 author = {金折, 裕司 and Kanaori, Yuji},
 month = {Aug},
 note = {Surface textures of quartz grains from about 250 samples of fault gouges in large faults extending several tens to several hundreds of kilometers in length and small faults ranging in length several meters to several tens of meters,all in the Japanese Island, are examined by means of the scanning electron microscope. It is disclosed that the surface morphology of the grains is variable, but quartz grains extracted from one fault gouge sample commonly show a type of texture different from those observed on the grains extracted from the other samples. the surface textures observed under the microscope are tentatively classified into eight types; subconchoida1, orange peellike,fish scale-like, mosslike, motheaten, stalactitic, pot-hole. and coral-like textures. These textures can be classified into four, i.e., group I to Ⅳ. Arranged in the order of their apparent features, it is interpreted that the progressive corrosion of quartz grains by ground water has taken place after faulting. The change of this surface feature can assist in estimating the time elapsed since the last fault activity.  On the basis of surface features of quartz grains extracted from fault gouges for which the geological age of thier movement is known, the groups,Ⅰto Ⅳ, are tentatively related to the age of formation of surface textures.  River pattern, striation, granular fractured surfaces, and dimple-1ike textures are observed on less corroded surfaces of quartz grains from fault gouges. Fractography of these surfaces of quartz grains is helpful to analyse the fracturing mode of the quartz grains which were released from the original rock mass into the fault gouge., 名古屋大学博士学位論文 学位の種類 : 理学博士(論文) 学位授与年月日 : 昭和58年8月19日},
 school = {名古屋大学, Nagoya University},
 title = {断層粘土中の石英粒子の表面構造による断層の活動および破砕様式の解析},
 year = {1983}
}