The Ninth Symposium on Polar Science (4 – 7 December 2018)

Oral sessionPoster session

Interdisciplinary session
[ID] Polar science developed by leading-edge analytical technology ~Beyond the micro meters and micro grams~

Scopes

The recent developments of analytical technology have allowed us to acquire data with high precision and high resolution from microscale targets in many scientific fields. Targets with a small size and/or small amount can produce valuable information. Nowadays, we have a chance to access that information. The scientific methods for processing the samples properly, extracting information from it and applying the information to various fields can make a breakthrough in natural science as well as the polar science.
In this session, “microscale” is focused on and the oral presenters from the fourth one will be invited to introduce their specialty for “microscale”. The conveners would like delegates from any fields to talk about and discuss laboratory techniques for investigating any subjects in microscale, such as samples, textures, trace elements, and isotopes, with high precision and resolution and/or application of the techniques for natural science as well as polar science. The conveners also intend to provide the delegates the opportunities to share the information of applicable techniques for each their own field and to start new collaborative works.

Conveners : Mami Takehara, Tomokazu Hokada, and Ryosuke Makabe (NIPR)

Oral presentations (10:15 – 11:40, 14:00 – 16:10)

Date : Thu. 6 Dec.
Place : 3F Seminar room, National Institute of Polar Research

10:15 - 10:20 OPENING
Chair: Kento Motomura (Kyushu Univ.), Kenji Horie (NIPR)
10:20 - 10:40 Disturbance of U-Pb and trace-element systems in hydrothermally altered zircon revealed by sensitive high-resolution ion microprobe (SHRIMP) *Mami Takehara (National Institute of Polar Research), Kenji Horie (National Institute of Polar Research), Tomokazu Hokada (National Institute of Polar Research), Shoichi Kiyokawa (Kyushu University)
10:40 - 11:00 Effect of impact energy on U–Pb zircon dating by a sensitive high-resolution ion microprobe (SHRIMP-II) *Kenji Horie (National Institute of Polar Research), Mami Takehara (National Institute of Polar Research)
11:00 - 11:20 Geochemical studies about late Paleoproterozoic ocean environment: The Cape Smith belt, Canada *Kento Motomura (Kyushu Univ.), Shoichi Kiyokawa (Kyushu Univ.), Minoru Ikehara (Kochi Univ.), Kentaro Tanaka (Univ. of Tokyo), Takashi Sano (National Museum of Nature and Science), Yukiyasu Tsutsumi (National Museum of Nature and Science), Yuji Sano (Univ. of Tokyo)
11:20 - 11:40

Elemental mapping with a micro X-ray fluorescence spectrometer (micro-XRF) : applications for geological samples

*Masatsugu Ogasawara (Geological Survey of Japan, AIST)
Lunch
13:00 - 14:00 Poster presentations
Place: Entrance Hall (1st floor) at National Institute of Polar Research (NIPR)
Chair: Mami Takehara (NIPR), Kenji Horie (NIPR)
14:00 - 14:20

Quantitative determination of silica content in siliceous shell plankton using Microfocus X-ray CT

*Takahito Ikenoue (MERI), Katsunori Kimoto (JAMSTEC), Yuriko Nakamura (JAMSTEC), Naoki Kuramoto (AIST), Masaaki Ueki (AIST), Yuichi Ota (AIST), Kjell Bjørklund (University of Oslo), Jonaotaro Onodera (JAMSTEC), Naomi Harada (JAMSTEC)
14:20 - 14:40

Identification of origins and biogeochemical process of cryoconite on glaciers using Sr and Nd stable isotope ratios

*Naoko Nagatsuka (National Institute of Polar Research), Nozomu Takeuchi (Chiba University), Kicheol Shin (Research Institute for Humanity and Nature), Takanori Nakano (Waseda University)
14:40 - 15:10 Dynamic phenomena recorded in geochemical and environmental materials *Satoshi Utsunomiya (Kyushu University)
15:10 - 15:20 Coffee Break
Chair: Mami Takehara (NIPR), Tomokazu Hokada (NIPR)
15:20 - 15:50 Systematic REE Isotopic Analyses for Cosmochemistry *Hiroshi Hidaka (Nagoya University)
15:50 - 16:10

Chemical composition of fluid in the subduction zone: Quantitative analysis of individual fluid inclusions by LA-ICP-MS

*Mayuko Fukuyama (Akita University), Masatsugu Ogasawara (Geological Survey of Japan, AIST), Tatsuhiko Kawamoto (Kyoto University)

Poster presentations (Core time: 13:00 - 14:00)

Place : Entrance Hall (1st floor) at National Institute of Polar Research (NIPR)

IDp1

Wind forced near-inertial period internal waves and their contribution to the mixed layer at the Antarctic Circumpolar current

*Matheus Ferreira Azevedo (Tokyo University of Marine Sciences and Technology), Yujiro Kitade (Tokyo University of Marine Sciences and Technology), Shigeru Aoki (Institute of Low Temperature Science, Hokkaido University)
IDp2 Nd isotopic analysis of silicates by using a 5-head advanced multi-collector sensitive high-resolution ion microprobe (SHRIMP-II/AMC) *Kenji Horie (National Institute of Polar Research), Mami Takehara (National Institute of Polar Research)
IDp3 Recovery rates and external morphologies of zircon grains from mechanical and electrical pulverization of rock samples: examples from TEMORA2 and AS3 *Mami Takehara (National Institute of Polar Research), Kenji Horie (National Institute of Polar Research), Tomokazu Hokada (National Institute of Polar Research), Shoichi Kiyokawa (Kyushu University)