| Co-Investigator(Kenkyū-buntansha) |
URABE Tetsuro Geological Survey of Japan, 主任研究官 (50107687)
DELANEY John R. School of Oceanography, University of Washington, 海洋学部, 教授
FUJII Naoyuki Faculty of Science, Nagoya University, 理学部, 教授 (60011631)
NAGAO Toshiyasu Faculty of Science, Kanazawa University, 理学部, 助手 (20183890)
HIRATA Naoshi Faculty of Science, Chiba University, 理学部, 助教授 (90156670)
HIRABAYASHI Jun-ichi Faculty of Science, Tokyo Institute of Technology, 草津白根観測所, 助教授 (30114888)
SHIMAMURA Hideki Faculty of Science, Hokkaido University, 理学部, 教授 (10011636)
ISEZAKI Nobuhiro Faculty of Science, Chiba University, 理学部, 教授 (60107943)
DETRICK Robert S. Graduate School of Oceanography, University of Rhode Island, 海洋研究所, 教授
LANGMUIR Charles H. Lamont-Doherty Geological Observatory, Columbia University, 教授
KANAZAWA Toshihiko Faculty of Science, University of Tokyo, 理学部, 助教授 (30114698)
HAMANO Yozo Faculty of Science, University of Tokyo, 理学部, 教授 (90011709)
URA Tamaki Institute of Industrial Science, University of Tokyo, 生産技術研究所, 助教授 (60111564)
YAMANO Makoto Earthquake Research Institute, University of Tokyo, 地震研究所, 助手 (60191368)
KASAHARA Junzo Earthquake Research Institute, University of Tokyo, 地震研究所, 助教授 (70012953)
FUJII Toshitugu Earthquake Research Institute, University of Tokyo, 地震研究所, 教授 (00092320)
KINOSHITA Hajimu Earthquake Research Institute, University of Tokyo, 地震研究所, 教授 (10110347)
GAMO Toshitaka Ocean Research Institute, University of Tokyo, 海洋研究所, 助手 (70143550)
SEGAWA Jiro Ocean Research Institute, University of Tokyo, 海洋研究所, 教授 (60013570)
TAMAKI Kensaku Ocean Research Institute, University of Tokyo, 海洋研究所, 助教授 (50188421)
BOUGAULT Henri Center de Brest, IFREMER, 主任研究員
CANN Johnson R. Department of Earth Science, The University of Leeds, 地球科学, 教授
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| Research Abstract |
The spreading ridges are now recognized as an extensive province of focused mass and energy exchange that affects the entire earth. Technological progress has provided strong support for the scientific impulse to pursue investigations of the ridges. The objective of this program is to initiate cooperative researches of the geodynamics of crustal accretion in the mid-ocean ridges and back-arc basins as a joint research program among Japan and US/European countries.
Although this program was approved as a one-year preliminary program, it has produced a good chance to initiate cooperative researches, and to join the international planning activities for the InterRidge program.
A RIDGE workshop on observation of temporal variability of ridgecrest processes was held in November 1991 in Seattle. Dr. Kanazawa attended the workshop and discussed on future research programs and instrumental developments. Drs. T. Fujii and T. Gamo attended RIDGE Theoretical Institute held in January 1992 in Tucson, Arizona, and discussed on the observed results and theories of hydrothermal and magma chamber processes at mid-ocean ridges and back-arc basins.
The Mariana Trough and Ayu Trough in the western Pacific were surveyed by several members of the research group of this program during the Hakuho-maru cruise KH-92-1. Dr. Laura Kong, NOAA in Hawaii, was invited to the Mariana Trough cruise and joined in the bathymetric and seismic survey of the ridge segmentation.
The InterRidge program has been pursued as an international and interdisciplinary research initiative concerned with all aspects of midocean ridges, and is going to start at the 2nd InterRidge meeting held in March 1992 in York, UK. Drs. Tamaki and Fujimoto will attend the meeting to make a program plan. Owing to the one-year research activities under this joint program, the research group has made a ground for future integrated research programs of spreading ridges.
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