Solid Earth Sciences (S) | ||
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Session Sub-category | Science of the Earth's Interior & Tectonophysics(IT) | |
Session ID | S-IT21 | |
Title | Understanding the first 150 million years of the solar system | |
Short Title | Solar system beginnings | |
Main Convener | Name | Yuki Hibiya |
Affiliation | Research Center for Advanced Science and Technology, The University of Tokyo | |
Co-Convener 1 | Name | Hiroko Watanabe |
Affiliation | Research Center for Neutrino Science, Tohoku University | |
Co-Convener 2 | Name | William F McDonough |
Affiliation | Department of Earth Science and Research Center for Neutrino Science, Tohoku University, Sendai, Miyagi 980-8578, Japan | |
Session Language |
E |
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Scope |
The first 150 million years of solar system history witnessed the formation of the rocky and gas giant planets, the Earth's Moon, and the asteroid belt. We seek to define the absolute and relative timing of these events, particularly in the inner solar system in order to explore hypotheses for their nature, origins, and timing of events at 10^6 to 10^8 time scales. For example, iron meteorites ages span from CAI formation to Mars formation, whereas chondrites ages postdate most early, small planetesimal formation and differentiation. Rocky planets likely grew rapidly by accretion of differentiated planetesimals (e.g., iron meteorite parent bodies) heated by 26Al. In contrast, chondritic parent bodies that accreted post-26Al lifetime remained undifferentiated. Mars and the Earth are equally enriched in refractory elements at 1.9 times CI chondrite, Mars is less volatile-depleted and more oxidized, and both formed Hadean crusts in the presence of surface water (cf., the Moon). We welcome contributions providing insights from physics and chemistry to the mechanisms forming and influencing these processes. |
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Presentation Format | Oral and Poster presentation | |
Invited Authors |
Shota Notsu (Earth and Planetary System Science Group, Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo) Tomoya Obase (Institute of Science Tokyo) Shogo Tachibana (UTokyo Organization for Planetary and Space Science, University of Tokyo ) Junji Yamamoto (Kyushu University) |
Time | Presentation No | Title | Presenter |
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Oral Presentation May 27 AM2 | |||
10:45 - 11:00 | SIT21-01 | Planet formation and astrochemistry in protoplanetary disks through theoretical modeling and astronomical observations with ALMA | Shota Notsu |
11:00 - 11:15 | SIT21-02 | Energetic solar activity from the first million years to present: Insights from noble gases in planetary materials | Tomoya Obase |
11:15 - 11:30 | SIT21-03 | Chemical Evolution of the Sun's Protoplanetary Disk: Constraints from Extraterrestrial Materials | Shogo Tachibana |
11:30 - 11:45 | SIT21-04 | Potential source materials of terrestrial noble gases inferred from mantle noble gas isotopic compositions | Junji Yamamoto |
11:45 - 12:00 | SIT21-05 | Theoretical Insights into Earth's Heat from Geoneutrino Detection by Ocean Bottom Detector: Role of Angular Resolution | Zhihao Xu |
12:00 - 12:15 | SIT21-06 | Composition, origin, and evolution of the Earth and its energy budget | William F McDonough |
Presentation No | Title | Presenter |
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Poster Presentation May 27 PM3 | ||
SIT21-P01 | Development of Ocean Bottom Detector for Direct Measurement of Mantle Geoneutrinos: Simulation studies and Prototype Development | Simran Chauhan |
SIT21-P02 | From planetesimals to planetary embryos: clues from differentiation of enstatite chondritic body | WEI DU |
SIT21-P03 | The late thermal events of carbonaceous chondrites revealed by I-Xe dating and halogen analyses | Yuki Hibiya |
SIT21-P04 | Deciphering solar system formation by linking the heterogeneity of short-lived and stable isotopes | Yuki Hibiya |