An integrated study of subduction-zone metasomatism in a very lowgeothermal environment

2008 Fiscal Year Final Research Report

• Project/Area Number: 19740312
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Geology
• Research Institution: Okayama University
• Principal Investigator: TSUJIMORI Tatsuki Okayama University, 地球物質科学研究センター, 准教授 (00436833)
• Project Period (FY): 2007 – 2008
• Keywords: 高圧変成岩 / 沈み込み帯 / 超低地温勾配域 / 沈み込みメタソマティズム

Research Abstract

超低地温勾配域の環境を経験した海洋地殻起源の超低温高圧変成岩類に記録された「沈み込みメタソマティズム」についての実像把握を目的に,中米グアテマラの広域ローソン石エクロジャイトとそれに準ずる世界の低温エクロジャイト相変成岩(北米フランシスカン帯,西南日本蓮華帯など)を対象に,地質学的・岩石学的・地球化学的・年代学的な総合研究を行った.そして,超低温高圧変成岩試料から正確な地質情報をデコードし,それに記録されたその複雑系の地質現象に年代を与えていくための研究ルーチンを確立した.

Research Products

• [Journal Article] Regional-scale excess Arwave in a Barrovian type metamorphic belt eastern Tibetan Plateau(doi:10.1111/j.1440-1738.2009.00668.x) (2009)
  • Author(s): Itaya T., Hyodo H., Tsujimori T., Wallis S., Aoya M., Kawakami T., Gouzu C.
  • Journal Title: The Island Arc
• [Journal Article] Ultrahigh-pressure minerals and metamorphic terranes(doi:10.1016/j.jseaes.2008.10.012) (2009)
  • Author(s): Liou J. G., Ernst W. G., Zhang R. Y., Tsujimori T., Jahn B. M.
  • Journal Title: The view from China : Journal of Asian Earth Sciences
• [Journal Article] Petrology and U-Pb SHRIMP geochronology of a garnet peridotite (2007)
  • Author(s): Zhao R., Liou J. G., Tsujimori T., Zhang R. Y.
  • Journal Title: Sulu UHP terrane, east-central China International Geology Review v.49,no.8 Pages: 732-752
• [Journal Article] Finding of high-grade tectonic blocks from the New Idria serpentinite body, Diablo Range, California : Petrologic constraints on the tectonic evolution of an active serpentinite diapir(doi:10.1130/2007.2419(03)) (2007)
  • Author(s): Tsujimori T., Liou J. G., Coleman R. G.,(Cloos M., Carlson W. D., Gilbert M. C., Liou J. G., Sorensen S. S., W. G. Ernst)
  • Journal Title: Geological Society of America Special 419 Pages: 67-80
• [Journal Article] On-going orogeny in the outer arc of Timor-Tanimbar region(doi:10.1016/j.gr.2006.04.013.) (2007)
  • Author(s): Kaneko Y., Maruyama S., Kadarusman A., Ota T., Ishikawa M., Tsujimori T., Ishikawa A., Okamoto K.
  • Journal Title: eastern Indonesia : Gondwana Research v.11,no.1-2 Pages: 218-233
• [Journal Article] Permo-Triassic collision ultrahigh-pressure metamorphism, and tectonic exhumation along the Eaxst Asian continental margin(doi:10.1146/annurev.earth.35.031306.140146) (2007)
  • Author(s): Ernst W. G., Tsujimori T., Zhang R. Y., Liou J. G.
  • Journal Title: Annual Review of Earth and Planetary Sciences v.35 Pages: 73-110
• [Presentation] Permo-Triassic mountain building and ore formation along the margin of East Asia: Subduction-zone metamorphism, continental growth, and exhumation. (2008)
  • Author(s): Ernst W. G., Tsujimori T., Zhang R. Y., Liou J. G.
  • Organizer: Asia Oceania Geosciences Society Conference
  • Place of Presentation: Busan, Korea
  • Year and Date: 20080616-20
• [Presentation] UHP minerals and metamorphic terranes-Aperspective view (2008)
  • Author(s): Liou J. G., Ernst W. G., Tsujimori T., Zhang R. Y., Jahn B. M.
  • Organizer: Asia Oceania Geosciences Society Conference
  • Place of Presentation: Busan, Korea
  • Year and Date: 20080616-20
• [Presentation] P-T conditions for eclogite / garnetamphibolite from serpentinite melanges along the Motagua Fault Zone, Guatemala. (2008)
  • Author(s): Harlow G. E., Sission V. B., TsujimoriT., Sorensen S. S., Brueckner H. K.
  • Organizer: Geological Society of America 2008 Annual Meeting
  • Place of Presentation: Huston, U.S.A
  • Year and Date: 2008-10-02
• [Presentation] Large-scale fluid flow in a cold subduction-zone: SIMS Li-isotope study of jadeitite veins in Franciscan metagraywacke. (2007)
  • Author(s): Tsujimori T., Moriguti T., KunihiroT., Kobayashi K., Nakamura E.
  • Organizer: Goldschmidt Conference
  • Place of Presentation: Colone, Germany
  • Year and Date: 20070819-24