Tectonic relationship between the Median Tectonic Line and the Tanakura Tectonic Line viewed from isotopic ages and Sr isotopes of granitic rocks in the northern Kanto Mountains

K. Shibata, Hideo Takagi

Research output: Chapter in Book/Report/Conference proceedingChapter

15 Citations (Scopus)

Abstract

Initial 87Sr/86Sr ratios have been determined for Permian and Early Cretaceous allochthonous granitic rocks and Late Cretaceous ones from the northern marginal areas of the Kanto Mountains, and for granitic rocks from the Yamizo Mountains and granitic clasts from the Usuginu conglomerate in Northeast Japan. Ages and Sr isotopic data of granitic rocks from the Kanto Mountains suggest that the Okitano-Iwayama Line and the Naranashi Fault are the eastern extension of the Median Tectonic Line. In addition, the components of the Abukuma-South Kitakami Belt are now shown to be distributed in the northern marginal areas of the Kanto Mountains between the Ryoke and Sambagawa Belts, and thus the Median Tectonic Line can be extended to the Tanakura Tectonic Line. -from English summary

Original languageEnglish
Title of host publicationJournal - Geological Society of Japan
Pages687-700
Number of pages14
Volume95
Edition9
Publication statusPublished - 1989
Externally publishedYes

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isotope
tectonics
mountain
rock
Cretaceous
clast
conglomerate
Permian

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Tectonic relationship between the Median Tectonic Line and the Tanakura Tectonic Line viewed from isotopic ages and Sr isotopes of granitic rocks in the northern Kanto Mountains. / Shibata, K.; Takagi, Hideo.

Journal - Geological Society of Japan. Vol. 95 9. ed. 1989. p. 687-700.

Research output: Chapter in Book/Report/Conference proceedingChapter

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