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Shimada, Koji
Chishitsu Gijutsu, (9), p.25 - 40, 2019/09
Today many collaborations are there in Earth-scientific research and development. Structural geology can serve crucial information on tectonic strain at sampling point in Japan, belonging to the circum-Pacific orogenic belt. Visualize of strain estimation would be effective during field geological survey and for better understanding for non-specialist on structural geology. Illustrations decoding mathematical expressions of strain estimation methods are presented here.
Tamura, Hajimu; Sato, Keiko*
Chishitsu Gijutsu, (3), p.21 - 25, 2013/09
K-Ar age of fault is sometimes exclusive fact age of fault activity though the age of fault activity is determined on stratigraphy and ages by different dating methods. This note describes application of K-Ar dating to fault sample. Pseudotachylyte and Authigenic illite in fault gauge are major target material of dating. Sample preparation and determination of age are difficult for both of them and the geochronology is still in development stage. Dating examples of Pseudotachylyte says that sample separation is important to select part which was equilibrate to atomosphere in generation by spot analysis like laser fusion 
Ar-
Ar dating, as illite examples that sample preparation to obtain fine - about 1 micrometer or less - grain and sample determination by inspection with electron microscope or XRD analysis are important.
Sakai, Ryutaro; Munakata, Masahiro; Kimura, Hideo; Ooka, Masao*; Kameya, Hiroshi*; Hosoda, Koichi*
Dai-21-Kai Zenkoku Chishitsu Chosagyo Kyokai Rengokai "Gijutsu Foramu" Koenshu (CD-ROM), 2 Pages, 2010/11
no abstracts in English