Takeshi Kakegawa

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Speaker, Author, Co-Author

Mon. May 22, 2023 3:30 PM - 4:45 PM 201A (International Conference Hall, Makuhari Messe)

[J] Oral
| H (Human Geosciences )
| H-RE Resource and Engineering Geology

[H-RE11] Earth Resource Science

3:45 PM - 4:00 PM

[HRE11-06] Sulfur cycles around ca. 15 Ma Kuroko deposits and new perspective for causative factors of mass-independent fractionation of sulfur

*Tomoaki Koya¹, Akizumi Ishida¹, Takeshi Kakegawa¹ (1.Graduate school of science, Tohoku University)

Tue. May 23, 2023 10:45 AM - 12:15 PM Online Poster Zoom Room (18) (Online Poster)

[E] Online Poster
| B (Biogeosciences )
| B-BG Biogeosciences & Geosphere-Biosphere Interactions

[B-BG01] Earth and Planetary Science Frontiers for Life and Global Environment

10:45 AM - 12:15 PM

[BBG01-P07] Connection of deep crustal fluids and surface microbial activities: case studies at non-volcanic hot springs in northeastern Japan

*Takeshi Kakegawa¹ (1.Graduate School of Science, Tohoku University)

Thu. May 25, 2023 3:30 PM - 4:45 PM 301A (International Conference Hall, Makuhari Messe)

[J] Oral
| B (Biogeosciences )
| B-PT Paleontology

[B-PT04] Biotic History

3:30 PM - 3:45 PM

[BPT04-01] Behavior of phosphorous during the 2.7 Ga submarine hydrothermal activities at Abitibi Greenstone Belt, Canada

*Yuki Takashina¹, Akizumi Ishida¹, Takeshi Kakegawa¹ (1.Graduate School of Science, Tohoku University)

Mon. May 22, 2023 9:00 AM - 10:15 AM 304 (International Conference Hall, Makuhari Messe)

[J] Oral
| B (Biogeosciences )
| B-CG Complex & General

[B-CG06] Rock-Bio Interactions and its Applications

9:15 AM - 9:30 AM

[BCG06-02] 3.2 Ga biological carbon and nitrogen cycles: Constraints from banded iron formation from Fig Tree Group, S. Africa

*Hikari Saito¹, Akizumi Ishida¹, Ko Hashizume², Takeshi Kakegawa¹ (1.Graduate School of Science, Tohoku University, 2.Faculty of Science, Ibaraki University)

Tue. May 23, 2023 10:45 AM - 12:15 PM Online Poster Zoom Room (19) (Online Poster)

[J] Online Poster
| B (Biogeosciences )
| B-CG Complex & General

[B-CG06] Rock-Bio Interactions and its Applications

10:45 AM - 12:15 PM

[BCG06-P05] Geological and mineralogical studies of ca. 12 Ma submarine hydrothermal iron oxides in the Hokuroku area, Akita Prefecture, Japan

*Mayuko Hikichi¹, Akizumi Ishida¹, Takeshi Kakegawa¹ (1.tohoku university)

Fri. May 26, 2023 10:45 AM - 12:15 PM Online Poster Zoom Room (20) (Online Poster)

[J] Online Poster
| B (Biogeosciences )
| B-CG Complex & General

[B-CG07] Decoding the history of Earth: From Hadean to the present

10:45 AM - 12:15 PM

[BCG07-P03] Geological and geochemical study of organic-rich sedimentary rocks in the Matachewan area, Abitibi Greenstone Belt, Canada (2.7 Ga)

★Invited Papers

*Kazuki Kobayashi¹, Akizumi Ishida¹, Takeshi Kakegawa¹ (1.Tohoku University)

10:45 AM - 12:15 PM

[BCG07-P06] Geological and geochemical studies of stromatolites and associated rocks of ca. 1.9 Ga Gunflint formation, Canada.

★Invited Papers

*Sota Iijima¹, Akizumi Ishida¹, Kouhei Sasaki¹, Takeshi Kakegawa¹ (1.Tohoku university)