Biogeosciences (B)
Session Sub-category Complex & General(CG)
Session ID B-CG04
Title Decoding the history of the Earth-like planets: From their birth to the present
Short Title Decoding the history of the earths
Main Convener Name Tsuyoshi Komiya
Affiliation Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo
Co-Convener 1 Name Fumito Shiraishi
Affiliation Earth and Planetary Systems Science Program, Graduate School of Advanced Science and Engineering, Hiroshima University
Co-Convener 2 Name Yusuke Sawaki
Affiliation The University of Tokyo
Co-Convener 3 Name Teruhiko Kashiwabara
Affiliation Japan Agency for Marine-Earth Science and Technology
Co-Convener 4 Name Stephen James Mojzsis
Affiliation Bavarian Geoinstitute University of Bayreuth
Session Language 
E
Scope 
This session will bring together the latest research results from various approaches, including observations, exploration, field surveys, chemical analysis, experiments, and theoretical calculations, on the evolution and geological processes of Earth and exoplanets from their birth to the present, and will comprehensively discuss the origin and internal evolution of exoplanets and Earth, the causal relationships and interactions between surface environmental changes and the birth and evolution of life. A wide range of related topics are welcome, including astronomy, planetary science, geology, tectonics, igneous and metamorphic petrology, stratigraphy and paleontology, evolution, environmental science, and geochemistry.
Presentation Format Oral and Poster presentation
Time Presentation No Title Presenter
Oral Presentation May 29 AM1
9:00 - 9:15 BCG04-01 Reappraisal of the geology of the northwestern part of the Isua Supracrustal Belt Tsuyoshi Komiya
9:15 - 9:30 BCG04-02 Re-evaluating Ge/Si Ratios in Archean Banded Iron Formations: A New Linear Regression Model to Decouple Seawater Signatures from Mineralogical Fractionation Yuki ISHIHARA
9:30 - 9:45 BCG04-03 Occurrence and geochemistry of calc-silicate rocks in the Isua supracrustal belt: Implications for bio-essential trace element concentrations in the Eoarchean seawater Satoshi Yoshida
9:45 - 10:00 BCG04-04 Komatiite-Hosted Hydrothermal Systems as Sources of Alkaline, hydroen- and Ammonia-Rich Fluids in the early oceans Manabu Nishizawa
10:00 - 10:15 BCG04-05 Development of standard materials for in-situ C isotope measurements of organic matter by SIMS Takayuki Ushikubo
10:15 - 10:30 BCG04-06 A high-fraction of O2 incorporation in sulfate derived from hydrogen sulfide oxidation at pH of 8 Fumihiro Matsuura
Oral Presentation May 29 AM2
10:45 - 11:00 BCG04-07 From Green Oceans to Blue: Light-Driven Evolution Across 2.5 Billion Years Taro Matsuo
11:00 - 11:15 BCG04-08 1-D photochemical model for S-MIF calculation and geochemical data compilation: Oxidation events during the Neoarchean Ryota Mihori
11:15 - 11:30 BCG04-09 Quantifying triple oxygen isotope composition of phosphate in banded iron formations: Implications for the Archean phosphorus cycle Takashi Sambuichi
11:30 - 11:45 BCG04-10 Nitrogen isotope evidence for biogenic nitrogen fixation in the Early Archean Kohei Sasaki
11:45 - 12:00 BCG04-11 Small sulfur isotopic fractionation factors for microbial sulfate reduction under low pH conditions Al Kurihara
12:00 - 12:15 BCG04-12 Reconstructing Precambrian Seawater Temperature: An In-situ Oxygen Isotope Approach Using Stromatolites from the Tumbiana Formation Taiyoh Yoshida
Oral Presentation May 29 PM1
13:45 - 14:00 BCG04-13 Activities of Paleoproterozoic microbial life in oily hot springs Takeshi Kakegawa
14:00 - 14:15 BCG04-14 Conditions for the Lomagundi-Jatuli event limited by phosphorus cycle and stability of climate Kohei Hikichi
14:15 - 14:30 BCG04-15 Reconstructing Phosphorus Dynamics in the Precambrian Ocean Using Multivariate Analysis of Shale Geochemistry Ryosuke Nagao
14:30 - 14:45 BCG04-16 Characteristics and habitats of early eukaryotes in the Mesoproterozoic succession in India Abhishek Pandey
14:45 - 15:00 BCG04-17 Three-dimensional Reconstruction of Ediacaran Brown Algae (Phaeophytes) with Multicellular Connections from the Weng'an Phosphorite Biota Wei DU
15:00 - 15:15 BCG04-18 Exploring Earth-like Planets beyond the Solar System Masahiro Ikoma
Oral Presentation May 29 PM2
15:30 - 15:45 BCG04-19 Oceanography during the Snowball Earth recorded in the sedimentary sequence of the Sturtian Glaciation Akihiro Kano
15:45 - 16:00 BCG04-20 Carbon isotope stratigraphy of the Cryogenian interglacial in South Australia Shiori Yabe
16:00 - 16:15 BCG04-21 Osmium isotope evidence for palaeoceanographic changes across the Norian/Rhaetian boundary from the western Tethys Shotaro Omori
16:15 - 16:30 BCG04-22 Microbial reef formation on the pelagic seamount precedes the end-Permian mass extinction event Shunta Ichimura
16:30 - 16:45 BCG04-23 Terrestrial and marine ecosystem responses to the Early Late Paleocene Event (ELPE) in the Nemuro Group, Hokkaido, Japan Tatsuya Yoshida
16:45 - 17:00 BCG04-24 A unified framework for mass extinction: volcanism, impacts, nuclear war, and the limits of life on Earth Kunio Kaiho
Presentation No Title Presenter
Poster Presentation May 29 PM3
BCG04-P01 Northeastern extension of the Adaatsag ophiolite distributed in the Bayantsagaan, central Mongolia Kazumasa Aoki
BCG04-P02 Cathodoluminescence Characteristics of Hadean Zircons : Implications for Primary Geochemical Signatures Shota Seno
BCG04-P03 Sulfate immobilization by water–rock interaction in Europa-relevant brines: 100 °C, 200 MPa experiments with eucrite and MgSO4–NaCl solutions Takuya Saito
BCG04-P04 Intramolecular isotope analysis of kerogen using flash-pyrolysis Fuka Nagayama
BCG04-P05 Multiple origins of graphite in Eoarchean metasedimentary rocks from Labrador, Canada inferred from in situ carbon isotope analyses Motoko Igisu
BCG04-P06 Crystallinity and geologic occurrence of carbonaceous material in shallow-marine and deep-sea sediments in the Isua supracrustal belt, southern West Greenland. Hikaru Tanabe
BCG04-P07 New development and application of a method for estimating paleoocean composition based on pyrite occurrence, sulfur isotopes and trace element composition Takatoshi Iwatsubo
BCG04-P08 Re-evaluation of the 3.5 Ga hydrothermal strontium isotope composition: Insights from micro-sampled barite in the Dresser Formation, North Pole, Pilbara Craton Kai Kurose
BCG04-P09 Formation process of phosphate stromatolite in the Paleoproterozoic Jhamarkotra Formation, India Kuon Sato
BCG04-P10 Tectonic history of a Paleozoic seamount in the Gorkhi Formation: Possible petit-spot volcanism in the Mongol–Okhotsk Ocean Tomohiko Sato
BCG04-P11 Unusual Mn–Ca silicates in weakly metamorphosed Famennian (Late Devonian) BIF-like chert, Ultra-Tamba Belt (SW Japan): Submicron evidence for incipient metamorphic mineralization of iron formation. Nana Suzuki
BCG04-P12 Early Jurassic vegetation change firstly found in the Toyora Group, Yamaguchi Prefecture Naoki Ban
BCG04-P13 Surface ocean biogeochemical dynamics during the Cenomanian-Turonian Ocean Anoxic Event (OAE2) Tenga Yokoyama
BCG04-P14 Formation factors of the Torinosu-type Limestone from Shirokawa area in Ehime Prefecture and comparison with other regions Taketo Kito
BCG04-P15 A modelling study of changes in the ocean biogeochemical cycling and carbonate chemistry across the K-Pg boundary Tomoki Takeda
BCG04-P16 Paleoenvironmental variations recorded by biomarkers in coal beds of the Cretaceous Hakobuchi Formation, Hokkaido, Japan Keishiro Sakurai
BCG04-P17 Reconstruction of paleovegetation changes using biomarkers in sedimentary rocks of the K/Pg boundary in the Nemuro Group, Hokkaido, Japan Ritomi Kinoshita
BCG04-P18 Seismic stratigraphic evidence for past bottom current variability on Shatsky Rise, northwestern Pacific Ryota Murai