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Uplift of Himalayas and its induced Global Environmental Changes

Research Project

Project/Area Number 11304030
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Geology
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

SAKAI Harutaka  Division of Environmental Changes, Graduate School of Social and Cultural Studies, Kyushu University, Professor, 大学院・比較社会文化研究院, 教授 (90183045)

Co-Investigator(Kenkyū-buntansha) KUWAHARA Yoshihiro  Ibid, Research Associate, 大学院・比較社会文化研究院, 助手 (90281196)
OHNO Masao  Ibid, Associate Professor, 大学院・比較社会文化研究院, 助教授 (00251413)
NISHI Hiroshi  Ibid, Associate Professor, 大学院・比較社会文化研究院, 助教授 (20192685)
SAKAI Hideo  Faculty of Science, Toyama University, Associate Professor, 理学部, 助教授 (30134993)
YAMANAKA Toshiro  Ibid, Research Associate, 大学院・比較社会文化研究院, 助手
豊田 和弘  北海道大学, 大学院・地球環境科学研究科, 助教授 (10207649)
山縣 毅  九州大学, 大学院・比較社会文化研究科, 助手 (10239858)
折橋 裕二  東京大学, 地震研究所, 助手
瀧上 豊  関東学園大学, 法学部, 助教授 (40206909)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥39,230,000 (Direct Cost: ¥38,600,000、Indirect Cost: ¥630,000)
Fiscal Year 2001: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2000: ¥16,100,000 (Direct Cost: ¥16,100,000)
Fiscal Year 1999: ¥20,400,000 (Direct Cost: ¥20,400,000)
KeywordsHimalaya / Uplift / Monsoon / Paleoclimate / Environments / Lake / Lesser Himalaya / Kathmandu / カトマンズ盆地 / 学術ボーリング / 氷期・間氷期 / 湖成堆積物 / 古地磁気 / 逆帯磁 / モンストーン / エベレスト / デタッチメント / 変成岩ナップ
Research Abstract

We carried out geological field investigation and core drilling for academic purpose in the southern part of the Kathmandu Basin, in order to clarify the uplift process of the Himalaya and changes in Indian monsoon during the last 3 myr. Regarding on the drilled cores, we undertook the following studies.
1. Paleomagnetic study : we measured natural remanent magnetization and stepwise alternating field demagnetization, and detected two excursions corresponding to Mono Lake and Laschamp excursion.
2. 14C age determination : we measured AMS C 14 ages of twelve pieces of carbonized fragment, and clarified that the draining of lake water started at 11 kyr B.P.
3. Pollen analysis : we analyzed pollen assemblage of topmost 30 m at 10 cm interval, and obtained a curve of paleoclimatic changes during the last 50 kyr.
4. Diatom analysis : we examined the existence and assemblage of fossil diatom, and detected 5 genus 11 species of Centrales and 22 genus and 38 species of Pennales, some of which are useful as indicators of paleoenvironments of the lake.
5. Paleobotanical Study : we collected and identified fossil-leaves from more than 160 horizons and examined their significance as indicators of paleoclimate.
6. Grain-size distribution : we analyzed grain-size distribution of topmost 30 m, and clarified the difference between lacustrine and fluvial sediments.
7. Clay analysis : we carried out clay of topmost 50 m by XRD decomposition method, and obtained a curve of paleoclimatic change during the last 450 kyr.
8. Inorganic chemical analysis : we carried out radioactivation analysis of clay of topmost 30 m, and examined the relationship between changes of major and rare-earth elements and climatic changes.
9. Organic chemical analysis : we measured amount of total organic carbon and C/N ratio of topmost 30 m at 10 cm interval, and examined the relationship between their changes and environmental and climatic changes.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (35 results)

All Other

All Publications (35 results)

  • [Publications] Harutaka Sakai: "Changes in depositional system of the Paleo-Kathmandu Lake caused by uplift of the Nepal Lesser Himalayas"Journal of Asian Earth Sciences. 20. 267-277 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Rie Fujii, Harutaka Sakai: "Paleoclimatic changes during the last 2.5 myr recorded in the Kathmandu Basin, Central Nepal Himalayas"Journal of Asian Earth Sciences. 20. 256-266 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 酒井治孝: "100万年前のヒマラヤ前縁山地の急激な上昇"月刊地球. 24・4(印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 酒井治孝: "ヒマラヤ・チベット山塊の2Ma以降急上昇説の再検討:シシャパンマ峰北斜面の含植物化石層は本当に上部鮮新統か?"月刊地球. 24・4(印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 酒井治孝: "古カトマンズ湖の学術ボーリングとこれまでの成果"月刊地球. 24・5(印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 酒井治孝: "ヒマラヤの上昇とモンスーン変動:今後の課題と展望"月刊地球. 24・5(印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hrutaka Sakai (ed): "Special Issue, Himalaya Uplift and Paleoclimatic Changes in Central Nepal"Nepal Geological Society. 155 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Harutaka Sakai: "The Kathmandu Basin : An archive of the Himalayan uplift and past monsoon climate"Jour. Nepal Geol. Soc.. v. 25, Special Issue. 1-8 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Harutaka Sakai et al: "Core drilling of the basin-fill sediments in the Kathmandu Valley for paleoclimatic study : preliminary results"Jour. Nepal Geol. Soc.. v. 25, Special Issue. 9-18 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Harutaka Sakai: "Stratigraphic division and sedimentary facies of the Kathmandu Basin Group, central Nepal"Jour. Nepal Geol. Soc.. v. 25, Special Issue. 19-32 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Rie Fujii and Harutaka Sakai: "Palynological study of the drilled sediments from the Kathmandu Basin and its paleoclimatic and sedimentological significance"Jour. Nepal Geol. Soc.. v. 25, Special Issue. 53-62 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Rie Fujii et al: "Mineral composition changes recorded in the sediments from a 284-m-long drill-well in central part of the Kathmandu Basin, Nepal"Jour. Nepal Geol. Soc.. v. 25, Special Issue. 63-70 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yoshihiro Kuwahara et al: "Measurement of crystallinity and relative amount of clay minerals in the Kathmandu Basin Sediments by decomposition of XRD patterns (profile fitting)"Jour. Nepal Geol. Soc.. v. 25, Special Issue. 71-80 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Harutaka Sakai: "Danuwargaun fault as a possible trigger for draining of the Paleo-Kathmandu Lake"Jour. Nepal Geol. Soc.. v. 25, Special Issue. 89-92 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Harutaka Sakai: "Changes in depositional system of the Paleo-Kathmandu Lake caused by uplift of the Nepal Lesser Himalayas"Jour. Asian Earth Sci.. v. 20. 267-277 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Rie Fujii and Harutaka Sakai: "Paleoclimatic changes during the last 2.5 myr recorded in the Kathmandu Basin, Central Nepal Himalayas"Jour. Asian Earth Sci.. v. 20. 256-266 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Harutaka Sakai: "Changes in depositional system of the Paleo-Kathmandu Lake caused by uplift of the Nepal Lesser Himalayas"Journal of Asian Earth Sciences. 20. 267-277 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Rie Fujii, Harutaka Sakai: "Paleoclimatic changes during the last 2.5 myr recorded in the Kathmandu Basin, Central Nepal Himalayas"Journal of Asian Earth Sciences. 20. 256-266 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 酒井治孝: "100万年前のヒマラヤ前縁山地の急激な上昇"月刊地球. 24・4(印刷中). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 酒井治孝: "ヒマラヤ・チベツト山塊の2Ma以降急上昇説の再検討:シシャパンマ峰北斜面の含植物化石層は本当に上部鮮新統か?"月刊地球. 24・4(印刷中). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 酒井治孝 他: "古カトマンズ湖の学術ボーリングとこれまでの成果"月刊地球. 24・5(印刷中). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 酒井治孝: "ヒマラヤの上昇とモンスーン変動:今後の課題と展望"月刊地球. 24・5(印刷中). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Harutaka Sakai(ed): "Special Issue, Himalaya Uplift and Paleoclimatic Changes in Central Nepal"Nepal Geological Society. 155 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Harutaka Sakai: "Thrust package of 1.68 Ga Indian supracrustal rocks in the Miocene Siaralik Belt, Central Nepal Himalaya"Earth Science Frontiers. Vol7.Suppl. 64-66 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Rie Fujii: "Paleoclimatic changes during the last 2.5Ma recorded in the Kathmandu Baoin, Central Nepal Himalaya"Earth Science Frontiers. Vol7,Suppl. 383-385 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 酒井治孝: "古カトマンズ湖の堆積物に記録された気候変動ヒテクトニックイベント"地学雑誌. 109卷・5号. 759-769 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 西弘嗣: "無氷河時代(白亜紀)の気候と生物の絶滅"月刊地球. 103卷6号. 543-563 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hideo Sakai: "Paleomagnetic and rock magnetic studies on Lake Baikal sediments-BDP96 bore hole at Academician Ridge""Lake Baikal"Elsevier Science. 35-52 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Yoshihiro Kuwahara: "The surface structure of trioctahedral mica phlogopite by fluid contact mode AFM."Bull.of the Graduate School of Social and Cultual Studied,Kyushu University. 6卷. 87-95 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 酒井冶孝: "滑り落ちたヒマラヤ-エベレスト頂上直下の低角正断層の正体"科学. 69巻. 787-789 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] H.Sakai,Y.Takigani,Y,Nakanuita,H,nommra: "Invarted metamorphism in the Pre-Siwalik foreland basin sediments beneath the crystalline napper western Nepal Himalaya"Journal of Asian Earth Sciences. 17巻5/6号. 1-13 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 高嶋礼詩、西弘嗣: "中蝦夷地変の再検討と北海道の白亜紀テクトニクス"地質学雑誌.. 105巻10号. 711-728 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 藤田和彦、西弘嗣、斉藤常正: "琉球列島沿岸海草帯に生息する葉上性孔虫類の季節変化"化石. 66号. 16-33 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 桑原義博: "AFMによる鉱物表面微細像および格子像の観察とその問題点"鉱物学雑誌. 28巻4号. 173-180 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M,Loha,T,gamagata,J,C.Moore: "Structural fobrici and hydrocarbon content of the Scan Gregorio faultzone Moss Beach California"Special Lssuce of Amer,Assec,Petro.Geologists. 21-34 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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