Tue. May 24, 2022 10:45 AM - 12:15 PM 105 (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-SS Seismology

[S-SS07] Fault Rheology and Earthquake Physics

12:00 PM - 12:15 PM

[SSS07-24] DSeis Report 5: Compilation of 452 measurements of DCDA core stress around the upper fringe of the aftershock zone of the M5.5 Orkney M5.5 earthquake

*Yoshihiro Mima¹, Hiroshi Ogasawara¹, Yasuo Yabe², Akio Funato³, Takatoshi Ito² (1.Ritsumeikan University, 2.Tohoku University, 3.Fukada Geological Institute)

Tue. May 31, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (19) (Ch.19)

[J] Poster
| S (Solid Earth Sciences )
| S-SS Seismology

[S-SS07] Fault Rheology and Earthquake Physics

11:00 AM - 1:00 PM

[SSS07-P18] DSeis Report 4: Calibration of 3D seismic velocity field around the seismogenic zone of the M5.5 Orkney earthquake ｰ Comparison between DD-relocated aftershocks, 3D reflection data, and mafic/ultramafic intrusives.

Koichiro Suzuki¹, *Hiroshi Ogasawara¹, Ryogo Tadokoro¹, Musa Manzi², Lindsay Linzer^3,2, Raymond Durrheim², van Heerden Esterhuizen⁴, Bennie Liebenberg⁴, DSeis Team (1.Faculty of Science and Engineering, Ritsumeikan University, 2.School of Geoscience, Witwatersrand University, 3.SRK Ltd., South Africa, 4.Moab Khotsong mine, South Africa)

Wed. Jun 1, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (27) (Ch.27)

[E] Poster
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG46] Hard-Rock Drilling Science: From Continental to Deep Sea Drilling, and Oman Project

11:00 AM - 1:00 PM

[SCG46-P05] DSeis Report 2 Chemical and physical property of the mafic/ultramafic adjacent dykes accompanying aftershocks and hypersaline brine in deep and non-meteoric water environment

*seiya ohba¹, Masaya Wakimoto¹, kaoru fujita¹, Kotaro OGAWA¹, Hiroshi Ogasawara¹, Yasuo Yabe², Takuya Matsuzaki³, Yuhji Yamamoto³, Team DSeis (1.Ritsumeikan university, 2.Tohoku University, 3.Kochi University)

11:00 AM - 1:00 PM

[SCG46-P06] DSeis Report 3: Spatial variation in seismic velocity in downhole sonic log and core measurements for the mafic/ultramafic adjacent dikes accompanying aftershocks and hypersaline brine in deep and non-meteoric water environment

*kaoru fujita¹, Hiroshi Ogasawara¹, Yasuo Yabe², Yuhji Yamamoto³, Team DSeis (1.Ritsumeikan University, 2.Tohoku University, 3.Kochi University)

Mon. May 23, 2022 3:30 PM - 5:00 PM 304 (International Conference Hall, Makuhari Messe)

[J] Oral
| B (Biogeosciences )
| B-GM Geomicrobiology

[B-GM02] Rock-Bio Interactions and its Applications

3:30 PM - 3:50 PM

[BGM02-06] Archean metasedimental rock and mafic/ultramafic altered intrusives in non-meteoric hypersaline brine environment at 3 km depth in South African gold mines.

★Invited Papers

*Hiroshi Ogasawara¹, DSeis Team (1.Faculty of Science and Engineering, Ritsumeikan University)

Fri. May 27, 2022 9:00 AM - 10:30 AM 201B (International Conference Hall, Makuhari Messe)

[J] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-GI General Geosciences, Information Geosciences & Simulations

[M-GI32] Drilling Earth Science

9:45 AM - 10:00 AM

[MGI32-08] ICDP DSeis Report 1: An overview of the FY2021 activity in the drilling into seismogenic zones of M2.0-5.5 earthquakes in South African gold mines

*Hiroshi Ogasawara¹, DSeis Team (1.Faculty of Science and Engineering, Ritsumeikan University)

Hiroshi Ogasawara

Speaker, Author, Co-Author

★Invited Papers