JpGU Meeting 2018
Session outline| Solid Earth Sciences(S) | ||
|---|---|---|
| Session Sub-category | Geology | |
| Session ID | S-GL32 | |
| Title | Lower-Middle Pleistocene Boundary GSSP in the Kazusa Group | |
| Short Title | L-M Boundary GSSP | |
| Main Convener | Name | Makoto Okada |
| Affiliation | Department of Earth Sciences, Faculty of Science, Ibaraki University | |
| Co-Convener 1 | Name | Yusuke Suganuma |
| Affiliation | National institute of Polar Research | |
| Co-Convener 2 | Name | Koji Kameo |
| Affiliation | Department of Earth Sciences, Faculty of Science, Chiba University | |
| Co-Convener 3 | Name | Yoshimi Kubota |
| Affiliation | National Museum of Nature and Science | |
| Session Language | JJ | |
| Scope | In the Chiba Composite Section, a candidate for the Lower-Middle Pleistocene GSSP which is currently under review, a lot of stratigraphic studies using paleomagentism, marine microfossils, tephra layers and isotopes have been conducted intensively to propose GSSP. The aim of this session is to summarize and discuss scientific results from those studies including stratigraphic, chronologic and sedimentologic researches focusing on the Chiba Composite Section and/or some other contemporary sedimentary sequences. | |
| Presentation Format | Oral and Poster presentation | |
| Co-Sponsoring Societies (Society Members) | The Geological Society of Japan | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 24 PM2 | ||||
| 15:30 - 15:45 | SGL32-01 | A summary of the Chiba Section, Japan: a proposed Global Boundary Stratotype Section and Point (GSSP) for the base of the Middle Pleistocene Subseries | Yusuke Suganuma | Abstract |
| 15:45 - 16:00 | SGL32-02 | A high-resolution biostratigraphy of calcareous nannofossils around the Matuyama-Brunhes boundary in the Kokumoto Formation, Kazusa Group, in the Boso Peninsula, central Japan | Koji Kameo | Abstract |
| 16:00 - 16:15 | SGL32-03 | A high resolution paleomagnetic record across the Matuyama-Brunhes polarity transition from the Chiba composite section, a candidate for the L-M Pleistocene boundary GSSP | Makoto Okada | Abstract |
| 16:15 - 16:30 | SGL32-04 | Ultra-high temporal resolution foraminiferal isotope records during MIS 19 from the Chiba composite section | Yuki Haneda | Abstract |
| 16:30 - 16:45 | SGL32-05 | High-resolution climatostratigraphy for the MIS 19 interglacial from the Chiba Section | Masayuki Hyodo | Abstract |
| 16:45 - 17:00 | SGL32-06 | Quantitative paleotemperature reconstruction covering the Early-Middle Pleistocene boundary (MIS18-20) based on the pollen record obtained from the Chiba composite section, SE Japan | Masaaki Okuda | Abstract |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 24 Core Time | |||
| SGL32-P01 | An integrated chronostratigraphy in the lower Pleistocene Obama Formation, Inubo Group, distributed in the Choshi district, Chiba Prefecture, central Japan, based on data from paleomagnetic and oxygen isotopic analyses | Keisuke Yamamoto | Abstract |
| SGL32-P02 | Tephrostratigraphy of the Kokumoto Formation, Kazusa Group in the Yoro river route | Hiroomi Nakazato | Abstract |
| SGL32-P03 | Planktonic foraminiferal faunal changes around the Matuyama–Brunhes boundary in the northwestern Pacific and its paleoceanographic implications | Hiroki Hayashi | Abstract |
| SGL32-P04 | Radiolarian fossils from the Kokumoto Formation | Takuya Itaki | Abstract |