Wed. May 23, 2018 3:30 PM - 5:00 PM 101 (1F International Conference Hall, Makuhari Messe)

[JJ] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS14] Biogeochemistry

convener:Keisuke Koba(Center for Ecological Research, Kyoto University), Hideaki Shibata(Field Science Center fot Northern Biosphere, Hokkaido University), Naohiko Ohkouchi(海洋研究開発機構, 共同), Youhei Yamashita(Faculty of Environmental Earth Science, Hokkaido University), Chairperson:Koba Keisuke(Kyoto University), Fujii Kazumichi, Sunamura Michinari

Wed. May 23, 2018 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

[EJ] Poster
| P (Space and Planetary Sciences)
| P-PS Planetary Sciences

[P-PS06] Formation and evolution of planetary materials in the Solar System

[PPS06-P15] Origin of the Earth and Moon

*Hiroshi Ohmoto¹, Uschi M. Graham², Takeshi Kakegawa³, Yuya Tsukamoto³, Katherine L. Crispin¹, Zi-Kui Liu¹ (1.The Pennsylvania State University, 2.Univ. of Kentucky, 3.Tohoku University)

Wed. May 23, 2018 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

[EJ] Evening Poster
| P (Space and Planetary Sciences)
| P-PS Planetary Sciences

[P-PS06] Formation and evolution of planetary materials in the Solar System

[PPS06-P15] Origin of the Earth and Moon

*Hiroshi Ohmoto¹, Uschi M. Graham², Takeshi Kakegawa³, Yuya Tsukamoto³, Katherine L. Crispin¹, Zi-Kui Liu¹ (1.The Pennsylvania State University, 2.Univ. of Kentucky, 3.Tohoku University)

Wed. May 23, 2018 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

[EJ] Poster
| S (Solid Earth Sciences)
| S-RD Resources, Mineral Deposit & Resource Exploration

[S-RD33] Resource Geology

[SRD33-P12] Geological and geochemical studies on Miocene diatomaceous sedimentary rocks at Akita and Aomori in Japan; role of sulfur in maturation of organic matter and petroleum formation

*Ion Hiruta¹, Takeshi Kakegawa¹, Akizumi Ishida¹ (1.Graduate School of Science, Tohoku University)

Wed. May 23, 2018 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

[EJ] Evening Poster
| S (Solid Earth Sciences)
| S-RD Resources, Mineral Deposit & Resource Exploration

[S-RD33] Resource Geology

[SRD33-P12] Geological and geochemical studies on Miocene diatomaceous sedimentary rocks at Akita and Aomori in Japan; role of sulfur in maturation of organic matter and petroleum formation

*Ion Hiruta¹, Takeshi Kakegawa¹, Akizumi Ishida¹ (1.Graduate School of Science, Tohoku University)

Tue. May 22, 2018 10:45 AM - 12:15 PM 101 (1F International Conference Hall, Makuhari Messe)

[EE] Oral
| B (Biogeosciences)
| B-AO Astrobiology & the Origin of Life

[B-AO01] Astrobiology

10:45 AM - 11:10 AM

[BAO01-05] Prebiotic formations of nucleotide and peptide around Hadean juvenile crusts

★Invited Papers

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

11:10 AM - 11:25 AM

[BAO01-06] Clay minerals as a formation catalyst and a stabilizer of ribose on the prebiotic EarthClay minerals as a formation catalyst and a stabilizer of ribose on the prebiotic Earth

*Yoshihiro Furukawa¹, Ayumi Nitta¹, Chiaki Abe¹, Takeshi Kakegawa¹, Hyo-joong Kim², Steven A Benner² (1.Graduate School of Science, Tohoku University, 2.Foundation for Applied Molecular Evolution)

11:40 AM - 11:55 AM

[BAO01-08] Discovery of Ni-Fe phosphides in 3.46 Ga-old Apex basalt from Western Australia

*Yuya Tsukamoto¹, Takeshi Kakegawa¹, Uschi Graham², Zi-Kui Liu³, Hiroshi Ohmoto⁴ (1.Department of Earth Science,Tohoku University, 2.Department of Pharmaccutical Sciences, University of Kentucky, 3.Department of Material Science and Engineering, The Pennsylvania State University, 4.Department of Geosciences, The Pennsylvania State University)

Tue. May 22, 2018 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

[EE] Poster
| B (Biogeosciences)
| B-AO Astrobiology & the Origin of Life

[B-AO01] Astrobiology

[BAO01-P01] Formaldehyde formation in asteroid impacts: a new origin of prebiotic sugar precursor

*Saeka Masuda¹, Takamichi Kobayashi², Takeshi Kakegawa¹, Yoshihiro Furukawa¹ (1.Tohoku University, 2.National Institute for Materials Science)

Tue. May 22, 2018 3:30 PM - 5:00 PM 102 (1F International Conference Hall, Makuhari Messe)

[EE] Oral
| B (Biogeosciences)
| B-AO Astrobiology & the Origin of Life

[B-AO01] Astrobiology

4:25 PM - 4:40 PM

[BAO01-13] Synthesis of Bio-important Organics in Post-impact Plumes

*Jonathan Adam Stimmer¹, Ryohei Kobayashi¹, Takeshi Kakegawa¹, Yoshihiro Furukawa¹ (1.Graduate School of Science, Tohoku University)

Tue. May 22, 2018 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

[EE] Evening Poster
| B (Biogeosciences)
| B-AO Astrobiology & the Origin of Life

[B-AO01] Astrobiology

[BAO01-P01] Formaldehyde formation in asteroid impacts: a new origin of prebiotic sugar precursor

*Saeka Masuda¹, Takamichi Kobayashi², Takeshi Kakegawa¹, Yoshihiro Furukawa¹ (1.Tohoku University, 2.National Institute for Materials Science)

Mon. May 21, 2018 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

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

[B-BG02] Interrelation between Life, Water, Mineral, and Atmosphere

[BBG02-P01] New evidence and significance of biogenic Mn oxides in 12Ma carbonaceous sedimentary rocks in the Hokuroku district, Akita: constrain from fossil DNA and magnetic field

*Yuya Tsukamoto¹, Takeshi Kakegawa¹ (1.Graduate School of Science,Tohoku University)

[BBG02-P04] Geochemical study on the sulfide and organic matter at the Potterdoal deposit in Abitibi Greenstone Belt in Canada

*Takeru Osato¹, Takeshi Kakegawa¹, Akizumi Ishida¹ (1.Tohoku University)

[BBG02-P08] Geochemical Study of Organic Matter in the 15 Ma to 12 Ma Sedimentary Rocks in the Hokuroku District, Akita

*Seina Tsuchida¹, Takeshi Kakegawa¹ (1.Graduate School of Science, Tohoku University)

Mon. May 21, 2018 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

[JJ] Evening Poster
| B (Biogeosciences)
| B-BG Biogeosciences & Geosphere-Biosphere Interactions

[B-BG02] Interrelation between Life, Water, Mineral, and Atmosphere

[BBG02-P01] New evidence and significance of biogenic Mn oxides in 12Ma carbonaceous sedimentary rocks in the Hokuroku district, Akita: constrain from fossil DNA and magnetic field

*Yuya Tsukamoto¹, Takeshi Kakegawa¹ (1.Graduate School of Science,Tohoku University)

[BBG02-P04] Geochemical study on the sulfide and organic matter at the Potterdoal deposit in Abitibi Greenstone Belt in Canada

*Takeru Osato¹, Takeshi Kakegawa¹, Akizumi Ishida¹ (1.Tohoku University)

[BBG02-P08] Geochemical Study of Organic Matter in the 15 Ma to 12 Ma Sedimentary Rocks in the Hokuroku District, Akita

*Seina Tsuchida¹, Takeshi Kakegawa¹ (1.Graduate School of Science, Tohoku University)

Tue. May 22, 2018 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

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

[B-CG09] Decoding the history of Earth: From Hadean to the present

[BCG09-P08] Geological and geochemical studies of 2.7 Ga banded iron formation and black shale in Kukatush, Swayze Greenstone Belt, Ontario, Canada.

*Taku Nemoto¹, Takeshi Kakegawa¹ (1.Graduate School of Science, Tohoku University)

[BCG09-P09] Geochemical study on microfossils and coexisting minerals from 1.9 billion years Gunflint Formation, Canada

*Kouhei Sasaki¹, Akizumi Ishida¹, Takeshi Kakegawa¹ (1.Graduate School of Science, Tohoku University)

Tue. May 22, 2018 3:30 PM - 5:00 PM 101 (1F International Conference Hall, Makuhari Messe)

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

[B-CG09] Decoding the history of Earth: From Hadean to the present

4:00 PM - 4:15 PM

[BCG09-15] Microfossil-like carbonaceous materials in 3.2 Ga banded iron formations of Sheba Gold mine, Moodies Group, Barberton Greenstone Belt, South Africa

*Yoko Ohtomo¹, Ryo Nakajima¹, Tsubasa Otake¹, Takeshi Kakegawa², Tsutomu Sato¹ (1.Faculty of Engineering, Hokkaido University, 2.Graduate School of Science, Tohoku University)

Tue. May 22, 2018 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

[JJ] Evening Poster
| B (Biogeosciences)
| B-CG Complex & General

[B-CG09] Decoding the history of Earth: From Hadean to the present

[BCG09-P08] Geological and geochemical studies of 2.7 Ga banded iron formation and black shale in Kukatush, Swayze Greenstone Belt, Ontario, Canada.

*Taku Nemoto¹, Takeshi Kakegawa¹ (1.Graduate School of Science, Tohoku University)

[BCG09-P09] Geochemical study on microfossils and coexisting minerals from 1.9 billion years Gunflint Formation, Canada

*Kouhei Sasaki¹, Akizumi Ishida¹, Takeshi Kakegawa¹ (1.Graduate School of Science, Tohoku University)

Tue. May 22, 2018 10:45 AM - 12:15 PM Convention Hall B (CH-B) (2F International Conference Hall, Makuhari Messe)

[EJ] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS08] Drilling Earth Science

11:45 AM - 12:00 PM

[MIS08-11] Constraints on terrestrial and shallow marine environments of 3.2 Ga Earth:ICDP full proposal for Moodies Group Drilling Project in South Africa

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

Sun. May 20, 2018 9:00 AM - 10:30 AM A03 (Tokyo Bay Makuhari Hall)

[JJ] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-TT Technology & Techniques

[M-TT37] Frontiers in Geochemistry

9:00 AM - 9:15 AM

[MTT37-01] Simultaneous in situ analysis of C and N Isotope ratios in organic matter by SIMS: application for geological samples

*Akizumi Ishida^1,4, Kouki Kitajima², Kenneth H Williford³, Michael L Tuite³, Takeshi Kakegawa⁴, John W Valley² (1.Institute for Excellence in Higher Edcucation, Tohoku University, 2.WiscSIMS Lab., NASA Astrobiology Institute, department of Geoscience, University of Wisconsin, Madison WI, 3.Planetary, Chemistry and Astrobiology, Jet Propulsion Laboratory, 4.Department of Earth Science, Graduate School of Science, Tohoku University)

Takeshi Kakegawa

Convener, Chairperson

Speaker, Author, Co-Author

★Invited Papers