1989 Fiscal Year Final Research Report Summary
Studies on the Massive Ground Ice Body Related to Paleoclimatology in the Canadian Arctic.
| Project/Area Number |
63041006
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| Research Category |
Grant-in-Aid for Overseas Scientific Survey.
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| Allocation Type | Single-year Grants |
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| Section | Field Research |
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| Research Institution | Institute of Low Temperature Science, Hokkaido University. |
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Principal Investigator |
FUJINO Kazuo Professor, Institute of Low Temperature Science, Hokkaido University, 低温科学研究所, 教授 (50001649)
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| Co-Investigator(Kenkyū-buntansha) |
MICHEL F.A. Ass.Professor, Dept. of Geology, Carleton University. CANADA, Dept. of Geology, Ass. Profes
NATSUME Syunnji Instructor, Faculty of Agriculture, Hokkaido University., 農学部附属演習林, 助手 (30180532)
SHIMIZU Osamu Instructor, Faculty of Agriculture, Hokkaido University., 農学部, 助手 (20178966)
KAWAMURA Toshiyuki Instructor, Inst. of Low Temp. Sci., Hokkaido University., 低温科学研究所, 助手 (50091434)
MATSUDA Kyo Ass.Professor, Faculty of Agriculture, Hokkaido University., 農学部附属演習林, 助教授 (30002075)
SATO Seiji Ass.Professor, Faculty of Science, Hokkaido University., 理学部, 助教授 (30000813)
KATO Kikuo Ass.Professor, Water Research Institute, Nagoya University., 水圈科学研究所, 助教授 (00022616)
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| Project Period (FY) |
1988 – 1989
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| Keywords | Massive ground ice / Pingo / Segrigated ice origin / Congelation ice origin / Parmafrost of Canadian Arctic |
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| Research Abstract |
In March 1982, Fujino et al obtained core samples throughout the ice body and transported them to the cold laboratory of Institute of Low Temperature Science, Hokkaido University. And stratigraphic features were examined along the entire length of the core. The analyzed data suggested that the mechanism of its growth is not identical to that of the growth of a pingo in which segregated ice lenses constitute the core. Arguments have been about the origin and formation process and time of formation of the ice body.
For answering the arguments and clarifying them, the research project " Studies of the massive ground ice body in the western Canadian Arctic related to paleoclimatology" (Chief investigator: K. Fujino) started from 1984 through 1989, supported by Japanese government and also P.C.S.P. of Canadian government. This research project was also accepted as one of the projects of Japan-Canada Joint Science Program in 1986.
Results obtained in this project showed that characteristics of the ice body are markedly different from the ice of the segregated origin based upon crystalographic study, geochemical analyses and geological observation. These results obtained strongly suggest that the ice body originates from superimposed snow-ice formed by congelation of water, and buried in the period of Wisconscin glacial epoch.
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