[S-GL37] [JJ] Geochronology and Isotope Geology

Thu. May 25, 2017 10:45 AM - 12:15 PM 101 (International Conference Hall 1F)

convener:Takahiro Tagami(Graduate School of Science, Kyoto University), Yuji Sano(Division of Ocean and Earth Systems, Atmosphere and Ocean Research Institute, University of Tokyo), Chairperson:Yuji Sano(Division of Ocean and Earth Systems, Atmosphere and Ocean Research Institute, University of Tokyo), Chairperson:Takahiro Tagami(Graduate School of Science, Kyoto University)

Reliable reconstruction of geohistory is of primary importance to better envision the present and future of the Earth. Geochronology and isotope geology play major roles in the reconstruction. This session offers an opportunity to present the results of fundamental studies, including the developments / improvements of analytical methods and age calibration, as well as applications to the Earth and planetary materials. We particularly focus on: (1) radiometric dating, bio-stratigraphy, magneto-stratigraphy and stable isotopic time series that provide the age information, (2) radioisotopes and stable isotopes widely employed for analyzing the Earth and planetary systems and (3) hypothesis and numerical modeling that utilize / assimilate the age and isotopic data. We also welcome contributions that integrate a variety of relevant disciplines.

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10:45 AM - 11:00 AM

[SGL37-07] Nucleosynthetic isotope anomalies of trans-iron elements in meteorites: implication for the origin of terrestrial planets

★Invited papers

*Tetsuya Yokoyama¹, Taishi Nakamoto¹, Satoshi Okuzumi¹, Francesca Eleanora DeMeo² (1.Department of Earth and Planetary Sciences, School of Science, Tokyo Institute of Technology, 2.Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology)

11:00 AM - 11:15 AM

[SGL37-08] Strontium and Hydrogen Isotopes of Apatite Inclusion in Archaean Zircon

*Yuji Sano¹, Akizumi Ishida¹, Naoto Takahata¹, Jean David², Danilele L Pinti² (1.Division of Ocean and Earth Systems, Atmosphere and Ocean Research Institute, University of Tokyo, 2.GEOTOP, University of Quebec at Montreal)

11:15 AM - 11:30 AM

[SGL37-09] Uranium-Lead dating of Zagami and RBT04261 phosphates by NanoSIMS

*Takuya Morita¹, Yuji Sano¹, Mizuho Koike¹, Satoki Onda¹, Hajime Hiyagon², Naoto Takahata¹, Takafumi Niihara³ (1.Atmosphere and Ocean Research Institute, The University of Tokyo, 2.Graduate School of Science, The University of Tokyo, 3.The University Museum, The University of Tokyo)

11:30 AM - 11:45 AM

[SGL37-10] Refining the Geomagnetic Polarity Timescale: High-precision U-Pb geochronology from Late Cretaceous of US Western Interior and NE China

*Jahandar Ramezani¹, Kaori Tsukui¹, William C. Clyde², Tiantian Wang³, Kirk R. Johnson⁴, Scott Wing⁴, Samuel A. Bowring¹ (1.Massachusetts Institute of Technology, 2.University of New Hampshire, 3.China University of Geosciences, 4.National Museum of Natural History)

11:45 AM - 12:00 PM

[SGL37-11] Short-lived U- and Th-series isotopes: Tracers and chronometers of Earth surface processes though Anthropocene to global change time frame

*Bassam Ghaleb¹, Claude Hillaire-Marcel¹, Ana-Carolina Ruiz-Fernandez², Florent Barbecot¹ (1.University of Quebec at Montreal, GEOTOP, Montreal, Canada, 2.Instituto de Ciencias del Mar y Limnología, UNAM, Calz. Joel Montes Camarena s/n, Col. Playa Sur, Mazatlán, Sin., México)

Discussion (12:00 PM - 12:15 PM)

Session information