1:00 PM - 1:15 PM

[R8-O-1] Reconstruction of Early Pleistocene sea-surface temperature in the Northwestern Pacific region based on calcareous nannofossil assemblages

*Daisuke Kuwano¹, Koji Kameo¹, Yoshimi Kubota², Masayuki Utsunomiya³, Kanako Mantoku^4,2, Makoto Okada⁵ (1. Chiba University, 2. National Museum of Nature and Science, 3. National Institute of Advanced Industrial Science and Technology, 4. National Institute for Environmental Studies, 5. Ibaraki Univesity)

1:15 PM - 1:30 PM

[R8-O-2] Reorganization of the Asian monsoon and nutrient provenance during the late Miocene global cooling in the Japan Sea

*Kenji M. Matsuzaki¹, Mayasuki Ikeda², Ryuji Tada² (1. Atmosphere and Ocean Research Institute, The University of Tokyo, 2. Graduate School of Science, The University of Tokyo)

1:30 PM - 1:45 PM

[R8-O-3] Total organic carbon concentration and isotope composition changes over the last 66 ka in the southern part of the Japan Sea

*Naoto Ishida¹, Koji Seto², Fumio Akiba³, Ryo Matsumoto⁴ (1. Center for Advanced Marine Core Research, Kochi University, 2. Estuary Research Center, Shimane University, 3. Diatom Mini Lab., 4. Gas Hydrate Research Laboratory, Meiji University)

1:45 PM - 2:00 PM

[R8-O-4] ¹⁴C age of the dead deep-sea coral Pleurocorallium elatius off Zanpa Cape, Okinawajima island and its geological significance

*Fujio KUMON¹, Hidekazu TOKUYAMA, Tomoyo OKUMURA¹, Masayoshi Arai², Kosaku ARAI³ (1. Center for Advanced Marine Core Research, Kochi University, 2. Fukada Salvage and Marine Works Co. LTD, 3. National Institute of Advanced Industrial Science and Technology)

Cancelled

2:00 PM - 2:15 PM

[R8-O-5] What is sedimentation mechanism of event sediment in two marine cores collected from Uranouchi Inlet Bay, Kochi?

*Masafumi Murayama Murayama^1,6, Wataru Tanikawa², Akira Ijiri³, Tatsuhiko Hoshino², Takehiro Hirose², Katsuya Nejigaki⁶, Kazuno Arai⁶, Yasuo Kondo⁴, Goichiro Uramoto⁶, Hiromasa Ozaki⁵, Minoru Yoneda⁵ (1. Faculty of Agriculture and Marine Science, Kochi University, 2. Institute for Extra-cutting-edge Science and Technology Avant-garde Research, Kochi Institute for Core Sample Research, JAMSTEC, 3. Kobe University, 4. Faculty of Science and Technology, Kochi University, 5. The University Museum,The University of Tokyo, 6. Center for advanced Marine Core Research, Kochi University)

Break (2:15 PM - 2:30 PM)

2:30 PM - 2:45 PM

[R8-O-6] Reconstruction of ice sheet history since the LGH in Lutzow Holm Bay, East Antarctica revealed by sedimentological records

*Yusuke Suganuma^1,2, Yuki Haneda³, Takuya Itaki³, Takeshige Ishiwa¹, Masakazu Fujii^1,2, Yuji Kato⁹, Takayuki Omori⁷, Atsuko Amano³, Masao Iwai⁹, Naoshisa Nishida¹⁰, Kazuya Kusahara⁸, Daisuke Hirano^1,2, Mosamu Seki⁴, Kota Katsuki⁵, Moto Kawamata^1,11, Hiroki Matsui⁶, Jyun'ichi Okuno^1,2, Minoru Ikehara⁹, Hideki Miura^1,2 (1. National Institute of Polar Research, 2. The Graduate University for Advanced Studies (SOKENDAI), 3. Geological Survey of Japan, AIST, 4. Hokkaido University, 5. Shimane University, 6. Akita University, 7. University of Tokyo, 8. JAMSTEC, 9. Kochi Core center, 10. Tokyo Gakugei Daigaku, 11. CERI)

2:45 PM - 3:00 PM

[R8-O-7] Clarification of eruption mechanism of submarine mud volcanoes off Tanegashima Island by thermal history analysis of sediments

*Ryoma Setoguchi¹, Akira Ijiri², Takeyasu Yamagata³, Hiroyuki Matsuzaki³, Kyoko Hagino¹, Yohei Hamada⁵, Osamu Tadai⁶, Wataru Tanikawa⁵, Juichiro Ashi⁴, Masafumi Murayama¹ (1. Kochi University, 2. Kobe University, 3. The University Museum, The University of Tokyo, 4. Atmosphere and Ocean Research Institute, The University of Tokyo, 5. Japan Agency for Marine-Earth Science and Technology, 6. Marine Works Japan Ltd.)

3:00 PM - 3:15 PM

[R8-O-8] A report of YK20-14S/YK21-07S scientific cruises to Petit-spot volcanic fields, Tohoku-Oki, Japan

*Norikatsu Akizawa¹, Naoto Hirano², Shiki Machida³, Akira Ishikawa⁴, Gen Shimoda⁵, Kazutaka Yasukawa⁶, Kenji Matsuzaki¹, Chiori Tamura¹, Junji Kaneko⁷, Onboard Science Party (1. Atmosphere and Ocean Research Institute, The Univ. Tokyo, 2. Tohoku Univ., 3. Chiba Tech., 4. Tokyo Tech., 5. AIST, 6. School of Engeneering, The Univ. Tokyo, 7. JAMSTEC)

3:15 PM - 3:30 PM

[R8-O-9] Rotation of the Philippine Sea plate inferred from paleomagnetism of oriented cores taken with a ROV-based coring apparatus

*Toshitsugu Yamazaki¹, Shun Chiyonobu², Osamu Ishizuka^3,4, Fumisato Tajima⁵, Naoki Uto⁵, Shinichi Takagawa⁵ (1. Atmosphere and Ocean Research Institute, The University of Tokyo, 2. Graduate School of International Resource Sciences, Akita University, 3. Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 4. Japan Agency for Marine-Earth Science and Techonology, 5. KOKEN BORING MACHINE CO. LTD)

Session information

[3ch313-21] R8 [Regular Session]Marine geology