Solid Earth Sciences (S)
Session Sub-category Complex & General(CG)
Session ID S-CG57
Title Hybrid Geochronology from Date to Age
Short Title Hybrid Geochronology
Main Convener Name Sota Niki
Affiliation Division for Chronological Research, Institute for Space-Earth Environmental Research, Nagoya University
Co-Convener 1 Name Ito Kengo
Affiliation The University of Tokyo
Co-Convener 2 Name Shuhei Sakata
Affiliation Earthquake Research Institute, The University of Tokyo
Co-Convener 3 Name Hideki Iwano
Affiliation Geochemical Research Center, The University of Tokyo
Session Language
J
Scope
Quantitative chronological data derived from radioisotope dating methods is essential for elucidating the mechanism of geological and cosmological phenomena. Recent advances in mass spectrometry utilised for radioisotope dating methods have led to the acquisition of high-quality and large-quantity chronological data, resulting in the establishment of new research fields including chronological cytometry and multi-geochronology. However, comprehending the true meaning of radioisotope dates is challenging without wisdom from multiple geoscience fields (geology, geophysics and geochemistry).
In this session, hence, we propose Hybrid Geochronology that integrates insights provided by geochronology and various research fields, and groundbreaking research presentations from all aspects of geochronology are welcomed. Through the past two sessions in this series, we are aware of the necessity of not only the novel development of radioisotope dating methods, but also observations in macroscopic and microscopic scales from outcrops to thin sections and trace-element imaging analysis. We hope to create an opportunity for discussing new research approaches from original viewpoints.
Presentation Format Oral and Poster presentation
Time Presentation No Title Presenter
Oral Presentation May 27 AM2
10:45 - 11:00 SCG57-01 U–Pb Dating of Biogenic Apatite in Pelagic Clay: A New Approach for Deep-Sea Sediment Chronology Daiki Terauchi
11:00 - 11:15 SCG57-02 Elucidation of the thermal history of parent asteroid based on textural observation and in-situ U–Pb dating of winonaite meteorites Ryosuke Sakai
11:15 - 11:30 SCG57-03 U-Pb dating of magnetite and garnet: application to the Kamaishi skarn deposit, Iwate Prefecture, Northeast Japan Mayuko Fukuyama
11:30 - 11:45 SCG57-04 Development of a U–Pb dating method for monazite utilizing LA-MC-ICP-MS Shumpei Kudo
11:45 - 12:00 SCG57-05 Zircon Formation Mechanisms in Mafic Rocks and Interpretation of Their Ages Keita Itano
12:00 - 12:15 SCG57-06 Limitations on the accuracy of in situ U-Pb dating Axel Gerdes
Oral Presentation May 27 PM1
13:45 - 14:00 SCG57-07 Test for high-precision double dating of 238U–206Pb and 238U–230Th zircon ages with LA-ICPMS: a case study from Ohda pyroclastic flow in the Sanbe volcanic system. Hisashi Asanuma
14:00 - 14:15 SCG57-08 Age estimation by paleomagnetic field intensity: from submarine volcanoes to archeological artifacts Yutaka Yoshimura
14:15 - 14:30 SCG57-09 Assessment of the applicability of U–Th dating to Hematite Ito Kengo
14:30 - 14:45 SCG57-10 Development of an analytical method for 238U–230Th isotope ratios of whole-rock powder samples utilising multiple-spot LA-CRC-ICP-MS Sota Niki
14:45 - 15:00 SCG57-11 Reconstruction of U-Th-Pb series dating for investigation of high-temperature magma process Shuhei Sakata
Presentation No Title Presenter
Poster Presentation May 27 PM3
SCG57-P01 Can the faulting age of brittle fault rocks be determined using fission track dating? Jun Hosoi
SCG57-P02 Comparison of 193 nm and 213 nm laser abrasion systems for LA-ICP-MS zircon U-Th dating Hisatoshi Ito
SCG57-P03 Simultaneous determination of U–Th ages and trace-element compositions for zircon utilising LA-ICP-MS/MS Sota Niki
SCG57-P04 Complexity in zircon geochronology of serpentinite bodies Hikaru Sawada
SCG57-P05 Crystal growth for reference materials based on the flux method:Attempt to use natural monazite as starting materials Shoma Fukuda
SCG57-P06 Investigation of inherited zircons in felsic igneous rocks of the Setouchi Volcanic Rocks Hironao Shinjoe
SCG57-P07 Development of LA-ICP-MS U−Th disequilibrium/fission-track double dating for zircon and its application to Holocene volcanics Hideki Iwano
SCG57-P08 On the term "age" and "date" Mitsuhiro Nagata