[S-GL19] Frontier research on chronostratigraphic unit boundaries

Tue. May 28, 2024 5:15 PM - 6:45 PM Poster Hall (Exhibition Hall 6, Makuhari Messe)

convener:Hiroyuki Hoshi(Aichi University of Education), Reishi Takashima(Tohoku University Museum, Tohoku University), Junichiro Kuroda(Department of Ocean Floor Geoscience, Atmosphere and Ocean Research Institute, the University of Tokyo), Makoto Okada(Department of Earth Sciences, College of Science, Ibaraki University)

This session aims to share the current knowledge on stratigraphy, geochronology, geochemistry, paleoclimatology, and paleoceanography at or around chronostratigraphic unit boundaries. Geological studies dealing with chronostratigraphic unit boundaries, such as the Permian-Triassic (P-T) and Cretaceous-Paleogene (K-Pg) boundaries, as well as boundaries between systems (periods), series (epochs), stages (ages), and other chronozones (chrons) are welcome. We also welcome studies on global events such as oceanic anoxic events (OAEs), asteroid impacts, and geomagnetic reversals, as well as the lithostratigraphy, tephrostratigraphy, sequence stratigraphy, biostratigraphy, chemostratigraphy, magnetostratigraphy, radiometric dating, tectonics, etc. of rock sequences above or below the chronostratigraphic unit boundaries in Japan and elsewhere.

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5:15 PM - 6:45 PM

[SGL19-P01] Correlation of the Lower Cretaceous Weissert Event in NW Pacific.

*Taiga Tomaru¹, Reishi Takashima², Yuji Orihashi³, Toshiro Yamanaka⁴, Hisao Ando⁵, Yoshihiro Asahara⁶, Hiroshi Nishi⁷, Azumi Kuroyanagi² (1.Department of Earth Science, Graduate School of Science, Tohoku University, 2.The Center for Academic Resources and Archives Tohoku University Museum , 3.Global Environment and Disaster Prevention Sciences, Graduate School of Science and Technology, Hirosaki University, 4. School of Marine Resource and Environment, Tokyo University of Marine Science and Technology, 5.Department of Earth Science, Graduate School of Science and Engineering, Ibaraki University, 6.Department of Earth and Environmental Sciences, Graduate School of Environmental Studies, Nagoya University, 7.Institute of Dinosaur Research , Fukui Prefectural University)

5:15 PM - 6:45 PM

[SGL19-P02] Magnetostratigraphy and paleomagnetic rotation of the Nemuro Group in the Shiranuka Hill area, eastern Hokkaido

*Hiroyuki Hoshi¹, Yota Kitano¹, Ichiha Mita¹, Reishi Takashima², Keiichi Hayashi³ (1.Aichi University of Education, 2.Tohoku University, 3.Hokkaido Research Organization)

5:15 PM - 6:45 PM

[SGL19-P03] Paleomagnetism of the Shukunohora Formation of the Miocene Mizunami Group in central Japan: Did a paleoparadoxiid witness the Japan Sea opening?

*Hiroyuki Hoshi¹ (1.Aichi University of Education)

5:15 PM - 6:45 PM

[SGL19-P04] A magneto-oxygen isotopic stratigraphy using an oriented boring core drilled through the Quaternary base horizon in the southernmost Boso Peninsula, Japan

Ryoka Yuhara¹, *Makoto Okada¹, Daiki Nagatomo¹, Yusuke Suganuma² (1.Department of Earth Sciences, College of Science, Ibaraki University, 2.National Institute of Polar Research)

Session information

[S-GL19] Frontier research on chronostratigraphic unit boundaries

[SGL19-P01] Correlation of the Lower Cretaceous Weissert Event in NW Pacific.

[SGL19-P02] Magnetostratigraphy and paleomagnetic rotation of the Nemuro Group in the Shiranuka Hill area, eastern Hokkaido

[SGL19-P03] Paleomagnetism of the Shukunohora Formation of the Miocene Mizunami Group in central Japan: Did a paleoparadoxiid witness the Japan Sea opening?

[SGL19-P04] A magneto-oxygen isotopic stratigraphy using an oriented boring core drilled through the Quaternary base horizon in the southernmost Boso Peninsula, Japan

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