2012 Fiscal Year Final Research Report
Geomorphological and environmental development of the Kamikochi Basin and neighboring mountain area on the basis of 300m depth drilling core analysis.
| Project/Area Number |
22540468
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Geology
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| Research Institution | Shinshu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KAWAI Sayuri 信州大学, 山岳科学総合研究所, 研究員 (30510010)
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| Co-Investigator(Renkei-kenkyūsha) |
MOMOHARA Arata 千葉大学, 大学院・園芸学研究科, 准教授 (00250150)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 地形発達史 / 山岳環境変動 / 堰止め湖 / 花粉分析 / 温暖化 / 14C年代 |
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| Research Abstract |
Extremely plane topography of the Kamikochi Basin in the Northern Japan Alps was a result of 12,000 y.BP. damming up of the Paleo-Azusa river by volcanic eruption of the Yakedake Volcanoes, and thick lacustrine sediment (180m in thick) deposited in paleo-Kamikochi Lake. Based on pollen analysis of the sediment core drilled at Kamikouchi basin, there was poor vegetation around the lake at first because of cold. The pioneer forest has gradually developed withwarming. From 11000 to 9000 y.BP, subarctic conifers escaped from the lower areas increased.From 9000 to 4000 y.BP, deciduous broadleaved forest dominated by Fagus crenata and Quercus(Lepidobalanus) increased.
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[Remarks] 掲載文書・展示 (1) 原山 智,その昔上高地は,巨大な湖だった.地質探偵ハラヤマの謎解き講座.ふるさと百名山,集英社,東京,no.02,31,2010.7
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[Remarks] 掲載文書・展示 (2) 原山 智・河合小百合,上高地の生い立ちを探る。山を科学する2011-その最前線-,平成23年度山岳博物館創立60周年記念 信州大学山岳科学総合研究所・市立大町山岳博物館 連携企画展11-14.2011
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[Remarks] 新聞掲載記事 (1)「上高地 1万2000年前に巨大湖」中日新聞,2010.2.13 朝刊1面
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[Remarks] 新聞掲載記事 (2)「巨大湖の水 松本盆地に?」 中日新聞,2011.2.27 朝刊32面
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[Remarks] 新聞掲載記事 (3)「上高地中心部 2つの活断層」 信濃毎日新聞,2011.12.17 朝刊23面
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[Remarks] 新聞掲載記事 (4)「上高地をジオパークに 県内研究者登録目指し準備委」 信濃毎日新聞,2012.9.29朝刊31面
