K-Ar ages of fault gouges and felsite dykes from the Median Tectonic Line in Chubu region, central Japan

Hideo Takagi, K. Shibata, S. Uchiumi

研究成果: Chapter

3 引用 (Scopus)

抄録

The K-Ar ages were determined on fine fractions (<2 μm) extracted from six fault gouges at outcrops of the Median Tectonic Line (MTL) in the Kami-ina and Sakuma areas in Chubu Region. The K-Ar ages range from 11.1 to 45.2 Ma and can be divided into three groups, namely 11.1-13.8 Ma, 21.1 Ma and 45.2 Ma. The first age group probably represents the rejuvenation by intrusion of felsite dykes which give the ages of 12.3-15.6 Ma. The second age together with our previous result (19-23 Ma) probably represents the time of hydrothermal alteration. The third age is similar to the data of the fault gouges from Kinki Region. It probably represents the time of major fault movement during the Paleogene in this area. -from English summary

元の言語English
ホスト出版物のタイトルJournal - Geological Society of Japan
ページ377-384
ページ数8
97
エディション5
出版物ステータスPublished - 1991
外部発表Yes

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fault gouge
tectonics
hydrothermal alteration
Paleogene
outcrop

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

これを引用

Takagi, H., Shibata, K., & Uchiumi, S. (1991). K-Ar ages of fault gouges and felsite dykes from the Median Tectonic Line in Chubu region, central Japan. : Journal - Geological Society of Japan (5 版, 巻 97, pp. 377-384)

K-Ar ages of fault gouges and felsite dykes from the Median Tectonic Line in Chubu region, central Japan. / Takagi, Hideo; Shibata, K.; Uchiumi, S.

Journal - Geological Society of Japan. 巻 97 5. 編 1991. p. 377-384.

研究成果: Chapter

Takagi, H, Shibata, K & Uchiumi, S 1991, K-Ar ages of fault gouges and felsite dykes from the Median Tectonic Line in Chubu region, central Japan. : Journal - Geological Society of Japan. 5 Edn, 巻. 97, pp. 377-384.
Takagi H, Shibata K, Uchiumi S. K-Ar ages of fault gouges and felsite dykes from the Median Tectonic Line in Chubu region, central Japan. : Journal - Geological Society of Japan. 5 版 巻 97. 1991. p. 377-384
Takagi, Hideo ; Shibata, K. ; Uchiumi, S. / K-Ar ages of fault gouges and felsite dykes from the Median Tectonic Line in Chubu region, central Japan. Journal - Geological Society of Japan. 巻 97 5. 版 1991. pp. 377-384
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