[S-GL28] Regional geology and tectonics

Mon. May 27, 2019 9:00 AM - 10:30 AM A09 (TOKYO BAY MAKUHARI HALL)

convener:Makoto Otsubo(Geological Survey of Japan, Research Institute of Earthquake and Volcano Geology), Jun Hosoi(Geological Survey of Japan, Institute of Geology and Geoinformation, AIST), Chairperson:Makoto Otsubo(Research Institute of Earthquake and Volcano Geology, Geological Survey of Japan)

The main aim of this session is to discuss geologic structure and tectonic history of East Asia, especially of Japanese Islands, on the basis of the recent results of geology and other earth sciences.

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9:00 AM - 9:15 AM

[SGL28-01] Lithology and zircon U-Pb geochronology of Paleoproterozoic and Paleozoic granitic complex in Maizuru Terrane from Tsuwano area, Shimane Prefecture, SW Japan

*Kosuke Kimura¹, Yasutaka Hayasaka¹, Tomoyuki Shibata¹, Kenta Kawaguchi¹, Hiroshi Fujiwara¹ (1.Hiroshima University)

9:15 AM - 9:30 AM

[SGL28-02] Tectonic significance of new Zircon U-Pb ages of sedimentary complexes in the northern Hidaka Belt, central Hokkaido, northern Japan

*Futoshi Nanayama^1,5, Toru Yamasaki¹, Jun Tajika², Hideki Iwano³, Tohru Danhara³, Takafumi Hirata⁴ (1.Geological Survey of Japan, AIST, 2.Docon Co. Ltd, 3.Kyoto Fission-Track Co.Ltd, 4.Tokyo Univ., 5.CWMD, Kumamoto Univ.)

9:30 AM - 9:45 AM

[SGL28-03] New age constraints and tectonic significance of Late Oligocene marine biosiliceous deposits in the Hidaka Belt, northeastern Hokkaido, northern Japan

*Futoshi Nanayama^1,6, Hiroshi Kurita², Toru Yamasaki¹, Jun Tajika³, Hideki Iwano⁴, Tohru Danhara⁴, Takafumi Hirata⁵ (1.Geological Survey of Japan, AIST, 2.Niigata Univ., 3.Docon Co. Ltd, 4.Kyoto Fission-Track Co. Ltd, 5.Tokyo Univ., 6.CWMD, Kumamoto Univ.)

9:45 AM - 10:00 AM

[SGL28-04] Late Cretaceous sea-level changes and tectonic history recorded in the forearc sedimentary successions of the Northeast Japan

*Jun Arimoto¹, Reishi Takashima², Hiroshi Nishi², Yuji Orihashi³, Toshiro Yamanaka⁴ (1.Department of Earth Science, Graduate School of Science, Tohoku University, 2.The Center for Academic Resources and Archives, Tohoku University, 3.Department of Earth and Environmental Sciences, Graduate School of Hirosaki University, 4.Tokyo University of Marine Science and Technology)

10:00 AM - 10:15 AM

[SGL28-05] Paleo-stress analysis in coherent zone, an exhumed Cretacesou accretionary complex, Shimanto Belt, in Konan city and Geisei villege, Kochi prefecture, SW Japan

*Makoto Hashiguchi¹, Yoshitaka Hashimoto¹ (1.Kochi University)

10:15 AM - 10:30 AM

[SGL28-06] Relationship between accretion of limestone blocks and subduction tectonics in Japan

*Koji Wakita¹ (1.Yamaguchi University)

Session information