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Preparation and design of tephra database in and around Japan

Update: 10. 17, 2011

(Jan. 11, 2011)


Date: January 11, 2011 (Tue) 10:40-17:00
January 12.2011 (Wed) 10:00-16:00
Venue: Auditorium
Atmosphere and Ocean Research Institute, The University of Tokyo 
5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8564, JAPAN Tel: +81-4-7136-6011
Invited Speakers: Takehiko Suzuki, Department of Geography, Tokyo Metropolitan University, suzukit[a]
Contact Person at AORI: Yusuke Yokoyama, Department of Ocean Floor GeoScience, yokoyama[a]

*[a] is 'at' simbol

January 11.2011 (Tue) 
10:40-11:00 Introduction of the symposium: tephra study in Japan
Takehiko Suzuki
11:00-11:40 A review of late-middle Quaternary deep-sea tephras around Japan
Kaori Aoki
11:40-12:20 Megafaunal extinctions during the MIS3-2 transition on the JapaneseArchipelago
Akira Iwase

13:10-13:40 Proposal of method to locate Japanese tephras in the framework of global stratigraphy since MIS3 and significance of high-resolution stratigraphy
Hideki Miura
13:40-14:20 The role of tephras in developing a prescise chronology for palaeoenvironmental reconstruction and human history, since 30,000 years ago: aiming for a construction of precise chronoliogical framwark in Japan
Hiroshi Moriwaki

14:30-15:10 Tephrochronology and volcanic geology 
Teruki Oikawa
15:10-15:50 Eruptive history of Akan, Kutcharo and Mashu Calderas, eastern part of Hokkaido
Takeshi Hasegawa
15:50-16:30 Identification of volcanic produsts using refractive indices of plagioclase phenocrysts: products of Haruna and Asama volcanoes
Masayuki Oishi
16:30-17:00 Discussion
17:20-19:20 Party

January 12.2011 (Wed)
10:00-10:20 Introduction of the symposium: aiming for tephra database
Takehiko Suzuki
10:20-10:50 Curation of core samples in JAMSTEC 
Takayuki Tomiyama, Hideaki Machiyama, Yuko Sagawa
10:50-11:20 GANSEKI: deep sea floor rock sample database operated by JAMSTEC 
Yuji Ichiyama
11:20-11:50 Active Fault Database of Japan by AIST
Toshikazu Yoshioka

13:00-13:30 Risk assessment of volcanic disasters related to tephra fall
Yoichi Nakamura
13:30-14:00 Study on volcanic disaster prevention by tephra GIS and Geospatial Information 
Mamoru Koarai
14:00-14:30 Database of the volcanic ash fall distribution map of Japan and its application
Shigeru Suto
14:30-15:00 The status quo and direction of development of J-Tephra
Masanori Hiranaka
15:00-15:30 Digital database of tephra in Japan (provisional)
Tastuhiko Sakamoto
15:30-16:00 Discussion


Research meeting