Fri. May 26, 2023 9:00 AM - 10:15 AM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-GL Geology

[S-GL22] Frontier research on chronostratigraphic unit boundaries

convener:Hiroyuki Hoshi(Department of Earth Sciences, 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), Chairperson:Hiroyuki Hoshi(Department of Earth Sciences, 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), Tetsuji Onoue(Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University)

Fri. May 26, 2023 10:45 AM - 12:00 PM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-GL Geology

[S-GL22] Frontier research on chronostratigraphic unit boundaries

convener:Hiroyuki Hoshi(Department of Earth Sciences, 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), Chairperson:Hiroyuki Hoshi(Department of Earth Sciences, 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), Tetsuji Onoue(Department of Earth and Planetary Sciences, Faculty of Science, Kyushu University)

Fri. May 26, 2023 1:45 PM - 3:15 PM Online Poster Zoom Room (4) (Online Poster)

[J] Online Poster
| S (Solid Earth Sciences )
| S-GL Geology

[S-GL22] Frontier research on chronostratigraphic unit boundaries

convener:Hiroyuki Hoshi(Department of Earth Sciences, 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)

Wed. May 24, 2023 10:45 AM - 12:15 PM Online Poster Zoom Room (14) (Online Poster)

[J] Online Poster
| S (Solid Earth Sciences )
| S-EM Earth's Electromagnetism

[S-EM15] Geomagnetism and paleomagnetism

10:45 AM - 12:15 PM

[SEM15-P06] Preliminary SQUID microscopic analysis of remanent magnetization components recorded in Plio-Pleistocene sedimentary rocks distributed in the Boso Peninsula

*Akihiro Tanimoto^1,2, Hirokuni Oda², Makoto Okada¹, Naoto Fukuyo² (1.Ibaraki University, 2. Institute of Geology and Geoinformation, Geological Survey of Japan, AIST)

Fri. May 26, 2023 10:45 AM - 12:00 PM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-GL Geology

[S-GL22] Frontier research on chronostratigraphic unit boundaries

11:15 AM - 11:30 AM

[SGL22-08] Precise correlations between geomagnetic reversals and the marine isotopic stratigraphy using a marine Pleistocene succession distributed in the southern Boso Peninsula, central Japan

*Makoto Okada¹, Daiki Kotsuka¹, Takumi Konishi^2,3, Yuta Ebe¹ (1.Department of Earth Sciences, College of Science, Ibaraki University, 2.Graduate School of Science and Engineering, Ibaraki University, 3.Yachiyo Engineering Co.,Ltd.)

11:30 AM - 11:45 AM

[SGL22-09] Mid-Piacenzian oxygen isotope–magnetostratigraphy and paleoclimatic reconstruction in the northwestern Pacific

*Yuki Haneda¹, Makoto Okada², Yoshimi Kubota³, Misao Hongo⁴, Koretaka Nakatani¹ (1.Geological Survey of Japan, AIST, 2.Department of Earth Sciences, College of Science, Ibaraki University, 3.National Museum of Nature and Science, 4.Alps Technical Research Laboratory Co.,Ltd.)

11:45 AM - 12:00 PM

[SGL22-10] Chronostratigraphy around the Quaternary base of a Plio-Pleistocene succession in the southernmost part of the Boso Peninsula.

*Daiki Nagatomo¹, Makoto Okada¹, Joan WIlly Songeons¹ (1.Ibaraki University)

Fri. May 26, 2023 1:45 PM - 3:15 PM Online Poster Zoom Room (4) (Online Poster)

[J] Online Poster
| S (Solid Earth Sciences )
| S-GL Geology

[S-GL22] Frontier research on chronostratigraphic unit boundaries

1:45 PM - 3:15 PM

[SGL22-P11] Paleomagnetic records around the Mammoth reversed subchron from the Mera Formation, Chikura Group, distributed in the southernmost part of the Boso Peninsula

*Akihiro Tanimoto¹, Makoto Okada¹ (1.Ibaraki University)

1:45 PM - 3:15 PM

[SGL22-P12] Matuyama-Brunhes reversal in oriented drill cores from Akan caldera-forming eruption deposits, east Hokkaido, Japan

*Takeshi Hasegawa¹, Chie Kusu¹, Makoto Okada¹, Aoi Hiratsuka¹, Kuniaki Nishiki², Yuki Sato² (1.College of Science, Ibaraki University, 2.Nuclear Regulation Authority)

Tue. May 23, 2023 10:45 AM - 12:00 PM International Conference Room (IC) (International Conference Hall, Makuhari Messe)

[J] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS15] Paleoclimatology and Paleoceanography

11:15 AM - 11:30 AM

[MIS15-08] Past Kuroshio Current variability in response to precession forcing during Early Pleistocene (MIS 36–41)

*Daisuke Kuwano¹, Koji Kameo¹, Yoshimi Kubota², Masayuki Utsunomiya³, Kanako Mantoku^2,4, Makoto Okada⁵ (1.Chiba Univ., 2.National Museum of Nature and Science, 3.AIST, 4.National Institute for Environmental Studies, 5.Ibaraki Univ.)

Makoto Okada

Convener, Chairperson

[S-GL22] Frontier research on chronostratigraphic unit boundaries

[S-GL22] Frontier research on chronostratigraphic unit boundaries

[S-GL22] Frontier research on chronostratigraphic unit boundaries

Speaker, Author, Co-Author

[S-EM15] Geomagnetism and paleomagnetism

[SEM15-P06] Preliminary SQUID microscopic analysis of remanent magnetization components recorded in Plio-Pleistocene sedimentary rocks distributed in the Boso Peninsula

[S-GL22] Frontier research on chronostratigraphic unit boundaries

[SGL22-08] Precise correlations between geomagnetic reversals and the marine isotopic stratigraphy using a marine Pleistocene succession distributed in the southern Boso Peninsula, central Japan

[SGL22-09] Mid-Piacenzian oxygen isotope–magnetostratigraphy and paleoclimatic reconstruction in the northwestern Pacific

[SGL22-10] Chronostratigraphy around the Quaternary base of a Plio-Pleistocene succession in the southernmost part of the Boso Peninsula.

[S-GL22] Frontier research on chronostratigraphic unit boundaries

[SGL22-P11] Paleomagnetic records around the Mammoth reversed subchron from the Mera Formation, Chikura Group, distributed in the southernmost part of the Boso Peninsula

[SGL22-P12] Matuyama-Brunhes reversal in oriented drill cores from Akan caldera-forming eruption deposits, east Hokkaido, Japan

[M-IS15] Paleoclimatology and Paleoceanography

[MIS15-08] Past Kuroshio Current variability in response to precession forcing during Early Pleistocene (MIS 36–41)