The 12th Symposium on Polar Science (15 – 18 November 2021)

Oral sessionPoster session

[OG] Polar Geosciences


This session covers research topics from the fields of geology, mineralogy, geomorphology, quaternary research, geodesy, and solid Earth geophysics.

Conveners : Jun'ichi OKUNO (NIPR)

Real-time Oral presentations (10:30 – 12:10, 13:30 - 14:50)

Date: Mon. 15 November

Chair: Mami Takehara (NIPR) (9:55- Announcement)
OGo1 10:30 - 10:50 Current understanding of the geologic framework of easternmost part of Dronning Maud Land and western part of Enderby Land, and future plan (JARE 65-) *Tomokazu Hokada (NIPR), JARE geology group
OGo2 10:50 - 11:10 U-Pb zircon geochronology of high-grade metamorphic rocks from outcrops along the Prince Olav Coast, East Antarctica *Ippei Kitano (Tochigi Prefectural Museum), Tomokazu Hokada (NIPR), Sotaro Baba (University of the Ryukyus), Atsushi Kamei (Shimane University), Yoichi Motoyoshi (NIPR), Tsuyoshi Toyoshima (Niigata University), Masahiro Ishikawa (Yokohama National University), Takuma Katori (Fossa Magna Museum), Nobuhiko Nakano (Kyushu University), Yasuhito Osanai (Kyushu University)
OGo3 11:10 - 11:30 Long-lived anatexis in Rundvagshetta, Lützow-Holm Complex, East Antarctica *Kota Suzuki (Kyoto University),Tetsuo Kawakami (Kyoto University), Shuhei Sakata (ERI, University of Tokyo)
OGo4 11:30 - 11:50 Pressure-Temperature path of a garnet-biotite-sillimanite gneiss from the Oyayubi ridge, Brattnipene, Sør Rondane Mountains. *Tatsuro Adachi (Kyushu University),Tetsuo Kawakami (Kyoto University), Masaoki Uno (Tohoku University), Fumiko Higashino (Kyoto University)
OGo5 11:50 - 12:10 Highlights of the Student Himalayan Exercise Tour 9 years and invitation to the 10th tour *Masaru Yoshida (Gondwana Institute for Geology and Environment, Tribhuvan University), Student Himalayan Field Exercise Project
12:10 - 13:20 Break
Chair: Takeshige Ishiwa (NIPR) (13:25- Announcement)
OGo6 13:30 - 13:50 Paleostress inversion in hydro-fractured metamorphic complex using 3D aerophotography images (Sør Rondane Mountains, East Antarctica) *Masaoki Uno (Tohoku University), Tetsuo Kawakami (Kyoto University), Tatsuro Adachi (Kyushu University), Fumiko Higashino (Kyoto University)
OGo7 13:50- 14:10 Estimation of Shirase Glacier flow velocity from 2018 to 2021 using Sentinel-1 data *Shotaro Ohkawa (The Graduate University for Advanced Studies), Koichiro Doi (NIPR), Kazuki Nakamura (Nihon University), Hiroto Nagai (Waseda University)
OGo8 14:10 - 14:30 Episodes of West Antarctic Ice Sheet retreat during Pliocene warmth revealed by a sedimentary record from the Amundsen Sea *Keiji Horikawa (University of Toyama), Masahiro Noda (University of Toyama), Miyu Fujimoto (University of Toyama), Yoshihiro Asahara (Nagoya University), Ki-Cheol Shin (Research Institute for Humanity and Nature), Masao Iwai (Kochi University), Li Wu (Tongji University), Ellen Cowan (Appalachian State University), Christine Siddoway (Colorado College), Claus-Dieter Hillenbrand (British Antarctic Survey)
OGo9 14:30 - 14:50 Sea-level changes in East Antarctica based on glacial isostatic adjustmet modeling since the Last Interglacial period *Takeshige Ishiwa (NIPR), Jun'ichi Okuno (NIPR), Yusuke Suganuma (NIPR)
15:00 - 15:30 Break
Chair: Jun'ichi Okuno (NIPR)
15:30 - 16:00 Poster session core time
16:00 - 17:30 Free discussion in each presenter's room (oral and poster presenters)

Poster presentations (15 November - 18 November, Real-time presentation: 15 Nov. 15:30 - 17:30)

OGp01 Barberton impact spherules, South Africa: pursuing of shock metamorphism by using Raman spectroscopy *Arpad Csamer (University of Debrecen), Diana Skita (University of Debrecen), Istvan Rigo (Wigner Research Centre for Physics), Miklos Veres (Wigner Research Centre for Physics), Peter Futo (University of Debrecen), Jozsef Vanyo (Eszterhazy Karoly University), Arnold Gucsik (Eszterhazy Karoly University)
OGp02 Absolute Gravity Measurements Planned in JARE63 *Koichiro Doi (NIPR), Akito Araya (ERI, The University of Tokyo), Daisuke Oka (Hokkaido Research Organization), Yoichi Fukuda (NIPR), Yuichi Aoyama (NIPR), Jun’ichi Okuno (NIPR), Akihisa Hattori (SOKENDAI)
OGp03 Geochronological and petrogenesis of charnockite from Mt. Cronus, Napier Complex, Enderby Land, East Antarctica *Miku Endo (Yamagata University), Kenichiro Tani (National Museum of Nature and Science), Shin-ichi Kagashima (Yamagata University)
OGp04 Unveiling seafloor spreading mode and geodynamics in the Southeast Indian Ridge: New challenge in Japanese Antarctic Research Expedition *Masakazu Fujii (NIPR)
OGp05 Counterclockwise and clockwise P-T histories recorded in a single sample? (Brattnipene, Sør Rondane Mountains, East Antarctica) *Hayato,Ikeda (Kyoto University), Tetsuo Kawakami (Kyoto University), Higashino Fumiko (Kyoto University)
OGp06 Monazite U-Th-Pb ages of the “unnamed nunatak (Nunatak 170224-3)” east of Forfinger Point, Western Rayner Complex, Enderby Land, East Antarctica *Tomokazu Hokada (NIPR), Sotaro Baba (University of the Ryukyus), Atsushi Kamei (Shimane University), Ippei Kitano (Kyushu University)
OGp07 Preliminary reports of U-Pb zircon age of charnockites in Aker Peaks of the Napier Complex, East Antarctic *Kenji Horie (NIPR), Mami Takehara (NIPR), Tomokazu Hokada (NIPR), Allen Nutman (University of Wollongong)
OGp08 Dependence of GIA-induced gravity change in Antarctica on viscoelastic Earth structure *Yoshiya Irie (NIPR), Jun’ichi Okuno (NIPR), Takeshige Ishiwa (NIPR), Koichiro Doi (NIPR), Yoichi Fukuda (NIPR)
OGp09 Monitoring and assessing the permafrost coast retreat along the Kara Sea by integrating in situ measurements *Arata Kioka (Kyushu University), Vladislav Isaev (Lomonosov Moscow State University), Pavel Kovov (Lomonosov Moscow State University), Takeshi Tsuji (Kyushu University), Stanislav Ogorodov (Lomonosov Moscow State University), Masakazu Fujii (NIPR), Osip Kokin (Lomonosov Moscow State University), Michail Tsarapov (Lomonosov Moscow State University), Andrey Koshurnikov (Lomonosov Moscow State University), Yaroslav Shevchuk (Lomonosov Moscow State University)
OGp10 Metamorphic zone mapping of the High Himalayan Crystalline nappe in Dhankuta, Eastern Nepal *Shumpei Kudo (Kyoto University), Tetsuo Kawakami (Kyoto University), Nakajima Toru (Tono Geoscience Center), Harutaka Sakai (Kyoto University)
OGp11 Characteristics and evolution process of tectonic regions in the Antarctic Plate and its adjacent area based on marine geophysical data *Takeshi Matsumoto (University of the Ryukyus), Yoshifumi Nogi (NIPR)
OGp12 Dependence of the Holocene rapid melting on GIA-induced vertical rate in East Antarctica *Jun'ichi Okuno (NIPR), Akihisa Hattori (SOKENDAI), Yoshiya Irie (NIPR), Yuichi Aoyama (NIPR), Koichiro Doi (NIPR), Yoichi Fukuda (NIPR)
OGp13 Ice sheet thinning since the Last Glacial Maximum in central Dronning Maud Land, East Antarctica *Yusuke Suganuma (NIPR), Heitaro Kaneda (Chuo University), Takushi Koyama (Oita University), Takeshige Ishiwa (NIPR), Jun'ichi Okuno (NIPR), Motohiro Hirabayashi (NIPR)
OGp14 Geochemical characterization of zircons for age determination of metamorphism in Fyfe Hills of the Napier Complex, East Antarctica *Mami Takehara (NIPR), Kenji Horie (NIPR), Tomokazu Hokada (NIPR)
OGp15 Ancient earthquakes and E-W compressional stress field recorded by brittle faults and pseudotachylytes from southwestern Skarvsnes in the Lützow-Holm Complex, East Antarctica *Tsuyoshi Toyoshima (Niigata University), Ippei Kitano (Tochigi Prefectural Museum), Masahiro Ishikawa (Yokohama National University), Takuma Katori (Fossa Magna Museum), Tomokazu Hokada (NIPR)
OGp16 C-O-H fluid was present during the garnet-forming partial melting in the Aoyama area, Ryoke metamorphic belt, SW Japan *Natsumi Yoshimoyo (Kyoto University), Tetsuo Kawakami (Kyoto University)