Elucidation of dehydration and hydration at subduction zones and solid earth processes

• Project/Area Number: 20540468
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: Okayama University
• Principal Investigator: MORIGUCHI Takuya Okayama University, 地球物質科学研究センター, 准教授 (70304342)
• Co-Investigator(Kenkyū-buntansha): TSUJIMORI Tatsuki 岡山大学, 地球物質科学研究センター, 准教授 (00436833)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2008: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 三波川変成岩 / 年代学 / エクロジャイト / 脱水作用 / 加水作用 / 固体地球プロセス / 沈み込み帯 / 三波川変成帯 / K-Ar年代 / U-Pb年代 / Rb-Sr年代 / Sm-Nd年代 / Lu-Hf年代 / 微量元素 / ジルコン / 変成作用 / リチウム同位体 / ホウ素同位体

Research Abstract

Exhumation processes after eclogite phases metamorphism at subduction zone were made clear chronologically by multiple-chronometers using Rb-Sr, Sm-Nd, K-Ar and Lu-Hf isotope system were applied to mineral separates of garnet, omphacite, amphibole, phengite and zircon.

Research Products

• [Journal Article] Slab decarbonation and CO2 recycling in the Southwestern Colombian volcanic arc. (2010)
  • Author(s): Marin-Ceron M.I., Moriguti T., Makishima A., Nakamura E.
  • Journal Title: Geochimica et Cosmochimica Acta 74 Pages: 1104-1121
  • Peer Reviewed
• [Journal Article] Degassing, crystallization and eruption dynamics at Stromboli : trace element and lithium isotopic evidence from 2003 ashes. (2010)
  • Author(s): Schiavi F., Kobayashi K., Moriguti T., Nakamura E., Pompilio M., Tiepolo M., Vannucci R.
  • Journal Title: Contributions to Mineralogy and Petrology 159 Pages: 541-561
  • Peer Reviewed
• [Presentation] In-Situ geochemistry of garnet peridotites of Lashaine, Tanazania craton : Re-fertilization in sub-cratonic lithospheric mantle. (2010)
  • Author(s): Sarbadhikari, B.A., Tsujimori, T., Moriguti, T., Kunihiro, T., Nakamura, E.
  • Organizer: Goldschimdt Conference 2010
  • Place of Presentation: ノックスビル(アメリカ合衆国)
  • Year and Date: 2010-06-18
• [Presentation] Sr-Nd-Hf-Pb isotopic characteristics of North-Western and Southern Ethiopian lithospheric mantle. (2010)
  • Author(s): Melesse, A., Kunihiro, T., Ota, T., Tanaka, R., Moriguti, T., Nakamura, E.
  • Organizer: Goldschimdt Conference 2010
  • Place of Presentation: ノックスビル(アメリカ合衆国)
  • Year and Date: 2010-06-17
• [Remarks] ホームページ等
  • URL: http://pmlgw.misasa.okayama-u.ac.jp/