1998 Fiscal Year Annual Research Report

深海掘削試料解析・孔内長期観測による地球ダイナミックスの研究

Research Project

Project/Area Number	10044067
Research Category	Grant-in-Aid for international Scientific Research
Section	Joint Research .
Research Institution	The University of Tokyo
Principal Investigator	平朝彦東京大学, 海洋研究所, 教授 (50112272)
Co-Investigator(Kenkyū-buntansha)	徐垣九州大学, 理学部, 助教授 (90183847) 多田隆治東京大学, 大学院・理学系研究科, 助教授 (30143366) 徳山英一東京大学, 海洋研究所, 助教授 (10107451) 玉木賢策東京大学, 海洋研究所, 教授 (50188421) 末広潔東京大学, 海洋研究所, 教授 (20133928)
Keywords	国際深海掘削計画 / 地球内部ダイナミックス / 地球環境ダイナミックス / ケルゲレン / 海洋古環境 / 炭酸塩堆積物 / 大陸のリフティング / 九州・パラオ海嶺
Research Abstract	本計画は掘削研究船ジョイデス・レゾリューションを用いて、深海底の掘削を行い、海底堆積物と岩石の柱状試料(コア)を連続的に採取し、また検層装置(ロギング)などによって地殻の諸性質を直接測定することにより、地球内部および地球環境ダイナミックスの2大テーマの解明を目指す国際共同研究である。日本からは、掘削船の各航海に研究者を乗船-参加させて船上での共同研究を推進し、また研究船白鳳丸を用いて掘削候補地の事前海底探査を行う。本年度は、インド洋、南大洋、西太平洋にて掘削を行なった。インド洋の東経90度海嶺では、グローバルな地震計ネットワーク敷設の一貫として海底地震計設置用の孔井を掘削した。またケルゲレン海嶺の掘削では、それが単純なプルーム起源の海台ではなく、大陸地殻の断片を巻き込んだものであることが示された。南大洋では、南極-オーストラリア-ニュージーランドの間の海洋循環経路の確立とその影響が調べられ、またオーストラリア南縁で、温帯大陸棚における炭酸塩堆積物の発達過程を研究した。西太平洋のウッドラーク海盆では、大陸地殻のリフティングに伴う断層を掘削した。事前調査としては、九州・パラオ海嶺の岩石学的調査を中心に行なった。 ODPの計画運営活動に関しては、理事会、科学委員会、各ハパネル・委員会へ出席し、日本の成果の発表と計画への意志反映を行なった。

Research Products
(30 results)

All Other

All Publications (30 results)

[Publications] Jin-Oh PARK: "Seismic record of tectonic evolution and backarc rifting in the southern Ryukyu island arc system." Tectonophysics. 294. 21-42 (1998)
[Publications] K.T.PICKERING: "Glacio-eustatic control on deep-marine clastic forearc sedimentation,Pliocene-mid-Pleistocene(c.1180-600 ka)" Journal of the Geological Society,London. 156. 125-136 (1999)
[Publications] Taira,A.: "Nature and growth rate of the Northern Izu-Ogasawara arc crust and their implications to continental crust formation." The Island Arc. 7. 395-407 (1998)
[Publications] Flower,M.: "Mantle extrusion:a model for dispersed volcanism and DUPAL-like asthenos phere in East Asia and the Western" AGU Geodynamics Series Monograph. 27. 67-88 (1998)
[Publications] FUJIMOTO,H.: "Development of Instruments for seafloor geodesy" Earth,Planets and Space. 50(11). 905-911 (1998)
[Publications] K.Okamura: "Selective and sensitive determination of trace manganesc in seawater by flow through technique using luminol-hydrogen" Analytica Chimica Acta. 377. 125-131 (1998)
[Publications] Nakanishi,M.: "Tectonic history of the Pacific-Farallon-Phoenix triple junction form Late Jurassic to Early Cretaceous:An abandoned" J.Geophys.Res.103. 12453-12468 (1998)
[Publications] Saito,S.: "Major and trace element geochemistry of sediments from East Greenland Continantal Rise:An implication for sediment" Proc.ODP,Scientific Results. 152. 19-28 (1998)
[Publications] Goldberg,D.: "Detection of gas hydrates using downhole logs" Geological Society of London,Special Publication. 137. 150-155 (1998)
[Publications] 望月公廣: "海台の地殻構造と沈み込み帯での運命" 月刊地球・号外. 23. 149-159 (1999)
[Publications] 多田隆治: "数百年〜数千年スケールの急激な気候変動-Dansgaard-Oeschger Cycleに対する地球システムの応答-" 地学雑誌. 107. 218-233 (1998)
[Publications] 木村学: "世界の沈み込み帯と日本列島-浸食と成長のテクトニックバランス" 科学. 68. 42-49 (1998)
[Publications] U.Tsunogai: "Methane-rich plumes in Suruga Trough(Japan)and their carbon isotope characterization." Earth and Planetary Scinece Letters. 160(1/2). 97-105 (1998)
[Publications] Arima,M.: "Experimental study of growth and resorption of diamond in kimb erlitic melts at high pressures and temperatures." Extended Abstract,7th Int emational Kimberlite Conference,Cape Twon. 32-34 (1998)
[Publications] Soh,W.: "Arc-arc collision in the Izu collision zone,central Japan,deduced from the Ashigara Basin and adjacent Tanzawa" The Island Arc.7. 330-341 (1998)
[Publications] Sakai,H.: "A.Paleomagnetic study of marine sediments from Antarctic Sea-Central Wilkes Land margin,Dumon d'Urville Sea and" Polar Geoscience. 11. 222-238 (1998)
[Publications] 村上由記: "深部地質環境における微生物群集-東濃地域を例として" 原子力バックエンド研究. 第5巻第2号(印刷中). (1999)
[Publications] Sakai H.: "K-Ar ages of the Mogi and Ugetsuiwa subaqueous pyroclastic flow deposits in the Taishu Group" Tsushima Islands Memoirs of the National science Museum. 31. 24-28 (1998)
[Publications] Kaiho,K.: "Global climatic forcing of deep-sea benthic foraminiferal test size during the past 120 m.y." Geology. 26. 491-494 (1998)
[Publications] Okada,H.: "Neogene and Quatemary calcareous nannofossils from the Blake Ridge Sites 994,995 and 997." Proc.ODP,Sci.Results. 164. (in press)
[Publications] Takizawa,S.: "Dilatant clayey microstructure in the Barbados decollement zone." Journal of Structural Geology. 21. 117-122 (1999)
[Publications] 伊勢崎修弘: "地殻環境変化と地球磁場(地磁気異常)" 月刊地球. 22. 42-46 (1998)
[Publications] Lund,S.P.: "Geomagnetic field excursions occurred often during the last million years" EOS,transactions,AGU,. 79. 178-179 (1998)
[Publications] Leg 174A Shipboard Scientists(including Koichi Hoyanagi and Hirokuni Oda): "Continuing the New Jersey Mid-Atrantic sea-level transect." Proceedings of the Ocean Drilling Program,Initial Reports. 174A. 324p (1998)
[Publications] Ikehara,M.: "Organic geochemistry of greenish clay and organic rich sediments since early Miocene from Hole 985A,Norway" Proceedings of the Ocean Drilling Program,Scientific Results. 162. (in press)
[Publications] Takemura,A.: "Preliminary report on the lithostratigraphy of the Arrow rocks,and geologic age of the northern part of the Waipapa Terrane," NOM. Spec.Vol.,No.11. 47-57 (1999)
[Publications] 徳山英一: "東海沖の海底活断層" 東京大学出版会, 174 (1999)
[Publications] Moore,J.C.: "Proc.ODP,Initial Reports,171A" College Station,TX(Ocean Drilling Program), 106 (1998)
[Publications] Silver,E.: "Proc.ODP,Initial Reports,170" College Station,TX(Ocean Drilling Program), 458 (1998)
[Publications] 有馬眞: "岩波講座地球惑星科学-13巻地球進化論-第4章火成作用の変遷と大陸地殻の進化" 岩波書店, 259-302 (1998)

1998 Fiscal Year Annual Research Report

深海掘削試料解析・孔内長期観測による地球ダイナミックスの研究

Principal Investigator

平 朝彦 東京大学, 海洋研究所, 教授 (50112272)

Research Products

[Publications] Jin-Oh PARK: "Seismic record of tectonic evolution and backarc rifting in the southern Ryukyu island arc system." Tectonophysics. 294. 21-42 (1998)

[Publications] K.T.PICKERING: "Glacio-eustatic control on deep-marine clastic forearc sedimentation,Pliocene-mid-Pleistocene(c.1180-600 ka)" Journal of the Geological Society,London. 156. 125-136 (1999)

[Publications] Taira,A.: "Nature and growth rate of the Northern Izu-Ogasawara arc crust and their implications to continental crust formation." The Island Arc. 7. 395-407 (1998)

[Publications] Flower,M.: "Mantle extrusion:a model for dispersed volcanism and DUPAL-like asthenos phere in East Asia and the Western" AGU Geodynamics Series Monograph. 27. 67-88 (1998)

[Publications] FUJIMOTO,H.: "Development of Instruments for seafloor geodesy" Earth,Planets and Space. 50(11). 905-911 (1998)

[Publications] K.Okamura: "Selective and sensitive determination of trace manganesc in seawater by flow through technique using luminol-hydrogen" Analytica Chimica Acta. 377. 125-131 (1998)

[Publications] Nakanishi,M.: "Tectonic history of the Pacific-Farallon-Phoenix triple junction form Late Jurassic to Early Cretaceous:An abandoned" J.Geophys.Res.103. 12453-12468 (1998)

[Publications] Saito,S.: "Major and trace element geochemistry of sediments from East Greenland Continantal Rise:An implication for sediment" Proc.ODP,Scientific Results. 152. 19-28 (1998)

[Publications] Goldberg,D.: "Detection of gas hydrates using downhole logs" Geological Society of London,Special Publication. 137. 150-155 (1998)

[Publications] 望月 公廣: "海台の地殻構造と沈み込み帯での運命" 月刊 地球・号外. 23. 149-159 (1999)

[Publications] 多田隆治: "数百年〜数千年スケールの急激な気候変動-Dansgaard-Oeschger Cycleに対する地球システムの応答-" 地学雑誌. 107. 218-233 (1998)

[Publications] 木村 学: "世界の沈み込み帯と日本列島-浸食と成長のテクトニックバランス" 科学. 68. 42-49 (1998)

[Publications] U.Tsunogai: "Methane-rich plumes in Suruga Trough(Japan)and their carbon isotope characterization." Earth and Planetary Scinece Letters. 160(1/2). 97-105 (1998)

[Publications] Arima,M.: "Experimental study of growth and resorption of diamond in kimb erlitic melts at high pressures and temperatures." Extended Abstract,7th Int emational Kimberlite Conference,Cape Twon. 32-34 (1998)

[Publications] Soh,W.: "Arc-arc collision in the Izu collision zone,central Japan,deduced from the Ashigara Basin and adjacent Tanzawa" The Island Arc.7. 330-341 (1998)

[Publications] Sakai,H.: "A.Paleomagnetic study of marine sediments from Antarctic Sea-Central Wilkes Land margin,Dumon d'Urville Sea and" Polar Geoscience. 11. 222-238 (1998)

[Publications] 村上由記: "深部地質環境における微生物群集-東濃地域を例として" 原子力バックエンド研究. 第5巻第2号(印刷中). (1999)

[Publications] Sakai H.: "K-Ar ages of the Mogi and Ugetsuiwa subaqueous pyroclastic flow deposits in the Taishu Group" Tsushima Islands Memoirs of the National science Museum. 31. 24-28 (1998)

[Publications] Kaiho,K.: "Global climatic forcing of deep-sea benthic foraminiferal test size during the past 120 m.y." Geology. 26. 491-494 (1998)

[Publications] Okada,H.: "Neogene and Quatemary calcareous nannofossils from the Blake Ridge Sites 994,995 and 997." Proc.ODP,Sci.Results. 164. (in press)

[Publications] Takizawa,S.: "Dilatant clayey microstructure in the Barbados decollement zone." Journal of Structural Geology. 21. 117-122 (1999)

[Publications] 伊勢崎 修弘: "地殻環境変化と地球磁場(地磁気異常)" 月刊地球. 22. 42-46 (1998)

[Publications] Lund,S.P.: "Geomagnetic field excursions occurred often during the last million years" EOS,transactions,AGU,. 79. 178-179 (1998)

[Publications] Leg 174A Shipboard Scientists(including Koichi Hoyanagi and Hirokuni Oda): "Continuing the New Jersey Mid-Atrantic sea-level transect." Proceedings of the Ocean Drilling Program,Initial Reports. 174A. 324p (1998)

[Publications] Ikehara,M.: "Organic geochemistry of greenish clay and organic rich sediments since early Miocene from Hole 985A,Norway" Proceedings of the Ocean Drilling Program,Scientific Results. 162. (in press)

[Publications] Takemura,A.: "Preliminary report on the lithostratigraphy of the Arrow rocks,and geologic age of the northern part of the Waipapa Terrane," NOM. Spec.Vol.,No.11. 47-57 (1999)

[Publications] 徳山英一: "東海沖の海底活断層" 東京大学出版会, 174 (1999)

[Publications] Moore,J.C.: "Proc.ODP,Initial Reports,171A" College Station,TX(Ocean Drilling Program), 106 (1998)

[Publications] Silver,E.: "Proc.ODP,Initial Reports,170" College Station,TX(Ocean Drilling Program), 458 (1998)

[Publications] 有馬 眞: "岩波講座 地球惑星科学-13巻 地球進化論-第4章 火成作用の変遷と大陸地殻の進化" 岩波書店, 259-302 (1998)

平朝彦東京大学, 海洋研究所, 教授 (50112272)

[Publications] 望月公廣: "海台の地殻構造と沈み込み帯での運命" 月刊地球・号外. 23. 149-159 (1999)

[Publications] 木村学: "世界の沈み込み帯と日本列島-浸食と成長のテクトニックバランス" 科学. 68. 42-49 (1998)

[Publications] 伊勢崎修弘: "地殻環境変化と地球磁場(地磁気異常)" 月刊地球. 22. 42-46 (1998)

[Publications] 有馬眞: "岩波講座地球惑星科学-13巻地球進化論-第4章火成作用の変遷と大陸地殻の進化" 岩波書店, 259-302 (1998)