Synthetic geological mapping on the Parece Vela Basin : Investigation of tectonic evolution

2011 Fiscal Year Final Research Report

• Project/Area Number: 21540477
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Geology
• Research Institution: 公益財団法人深田地質研究所 (2011); Fukada Geological Institute (2009-2010)
• Principal Investigator: ISHII Teruaki 公益財団法人深田地質研究所, 研究員 (80111582)
• Co-Investigator(Kenkyū-buntansha): OHARAYA Yasuhiko 海洋研究開発機構, 地球内部変動研究センター, 研究員 (10470121)
• Project Period (FY): 2009 – 2011
• Keywords: 東フィリピン海 / 島弧-海溝-背弧海盆系 / テクトニクス / 海洋底地質断面 / マントルカンラン岩 / 海洋コアコンプレックス / ゴジラムリオン / 深海シロウリガイコロニー

Research Abstract

Observation records by 24 Shinkai 6500 dives of 3 R/V Yokosuka cruises and analyses on collected samples elucidate the followings ;(1) Tectonic process of Godzilla mega-mullion, which is the world largest Ocean Core Complex(OCC) in the Parece Vela Basin was investigated, and(2) A serpentinite-hosted new ecosystem consisting of principally Calyptogena clams was discovered at near Moho in the Southern Mariana Forearc. Young volcanic field at rifting stage was also found in those eastern area.

Research Products

• [Journal Article] A serpentinite-hosted eco-system in the Southern Mariana Forearc (2012)
  • Author(s): Ohara, Y., M. K. Reagan, K. Fujikura, H. Watanabe, K. Michibayashi, T. Ishii, R. J. Stern, I. Pujana, F. Martinez, G. Girard, J. Ribeiro, M. Brounce, N. Komori, and M. Kino
  • Journal Title: Proceedings of the National Academy of Sciences of the United States of America Volume: 109 Pages: 2831-2835
  • Peer Reviewed
• [Journal Article] The early Miocene(～ 25Ma) volcanism inthe northern Kyushu-Palau Ridge, enriched mantle source injection during rifting prior to the Shikoku backarc basin opening (2011)
  • Author(s): Haraguchi, S., T. Ishii, J.-I. Kimura, and Y. Kato
  • Journal Title: Contributions to Mineralogy and Petrology
  • DOI: DOI:10.1007/s00410-011-0680-x
  • Peer Reviewed
• [Journal Article] Petrology and mineralogy of mantle peridotites from the southern Marianas (2011)
  • Author(s): Sato, H. and T. Ishii
  • Journal Title: Modern Approaches in Solid Earth Sciences Volume: 8 Pages: 129-147
  • DOI: doi:10.1007/978-90-481-8885-7_6
  • Peer Reviewed
• [Journal Article] ソレアイト質マグマに由来する箱根火山のカルクアルカリ岩:輝石地質温度計によるマグマの温度解析 (2011)
  • Author(s): 石井輝秋
  • Journal Title: 深田地質研究所年報 Volume: 12 Pages: 1-16
• [Journal Article] Tectonics of magma-starved crust formation in the Parece Vela Basin (2011)
  • Author(s): Ohara, Y., K. Okino, and J. E. Snow
  • Journal Title: Modern Approaches in Solid Earth Sciences Volume: 8 Pages: 149-168
  • DOI: doi:10.1007/978-90-481-8885-7_7
  • Peer Reviewed
• [Journal Article] Deformation and hydrothermal meta-morphism of gabbroic rocks within the Godzilla Megamullion (2011)
  • Author(s): Harigane, Y., K. Michibayashi, and Y. Ohara
  • Journal Title: Parece Vela Basin, Philippine Sea Volume: 124 Pages: 185-199
  • Peer Reviewed
• [Journal Article] Relicts of deformed lithospheric mantle within serpentinites and weathered peridotites from the Godzilla Megamullion (2011)
  • Author(s): Harigane, Y., K. Michibayashi, and Y. Ohara
  • Journal Title: Parece Vela Back-arc Basin, Philippine Sea
  • DOI: doi:10.1111/j.1440-1738.2011.00759.x
  • Peer Reviewed
• [Journal Article] Making and breaking an island arc : a new perspective from the Oligocene Kyushu-Palau arc (2011)
  • Author(s): Ishizuka, O., R. N. Taylor, M. Yuasa, and Y. Ohara
  • Journal Title: Geochem-istry, Geophysics Volume: 12 Pages: Q05005
  • DOI: doi:10.1029/2010GC003440
  • Peer Reviewed
• [Journal Article] Termination of backarc spreading : zircon dating of a giant oceanic core complex (2011)
  • Author(s): Tani, K., D. Dunkley, and Y. Ohara
  • Journal Title: Geology Volume: 39 Pages: 47-50
  • DOI: doi:10.1130/G31322.1
  • Peer Reviewed
• [Journal Article] Fore-arc basalts and subduction initiation in the Izu-Bonin-Mariana system (2010)
  • Author(s): Reagan, M. K., O. Ishizuka, R. J. Stern, K. A. Kelley, Y. Ohara, J. Blichert-Toft, S. H. Bloomer, J. Cash, P. Fryer, B. B. Hanan, R. Hickey-Vargas, T. Ishii, J.-I. Kimura, D. W. Peate, M. C. Rowe, and M. Woods
  • Journal Title: Geochem-istry, Geophysics Volume: 11 Pages: Q03X12
  • DOI: doi:10.1029/2009GC002871
  • Peer Reviewed
• [Journal Article] Mineral Classification from Quantitative X-ray Maps using Neural Network : Application to Volcanic Rocks (2010)
  • Author(s): Tsuji T., H. Yamaguchi, T. Ishii, and T. Matsuoka
  • Journal Title: Island Arc Volume: 19 Pages: 105-119
  • Peer Reviewed
• [Journal Article] トカラ列島における中期更新世の酸性海底火山活動 (2010)
  • Author(s): 横瀬久芳・佐藤創・藤本悠太・M. H. Mira-bueno・小林哲夫・秋元和實・吉村浩・森井康宏・山脇信博・石井輝秋・本座栄一
  • Journal Title: 地学雑誌 Volume: 119 Pages: 30-52
  • Peer Reviewed
• [Journal Article] Amphibolitization within the lower crust in the termination area of the Godzi-lla Megamullion, an oceanic core complex in the Parece Vela Basin (2010)
  • Author(s): Harigane, Y., K. Michibayashi, and Y. Ohara
  • Journal Title: Island Arc Pages: 1440-1738
  • DOI: doi:10.1111/j.1440-1738.2010.00741.x
  • Peer Reviewed
• [Journal Article] Peridotites from a ductile shear zone within back-arc lithospheric mantle, southern Mariana Trench : results of a Shinkai 6500 dive (2009)
  • Author(s): Michibayashi, K., Y. Ohara, R. J. Stern, P. Fryer, J.-I. Kimura, M. Tasaka, Y. Harigane, and T. Ishii
  • Journal Title: Geochemistry, Geophysics, Geosystems Volume: 10 Pages: Q05X06
  • DOI: doi:10.1029/2008GC002197
  • Peer Reviewed
• [Journal Article] Tectonics of the southern tip of the Parece Vela Basin (2009)
  • Author(s): Okino K., Y. Ohara, T. Fujiwara, S.-M. Lee, K. Koizumi, Y. Nakamura, and S. Wu
  • Journal Title: Philippine Sea Plate, Tectono-physics Volume: 466 Pages: 213-228
  • Peer Reviewed
• [Presentation] TN273 Cruise onboard 19 scientists, Geological and petrological studies in the southern Mariana margin,-R/V Thomas G. Thompson TN273 Cruise quick report- (2012)
  • Author(s): T. ISHII, F. MARTINEZ, K. A. KELLEY, R. J. STERNY, Y. OHARA
  • Organizer: 日本地球惑星科学連合2012年大会
  • Place of Presentation: 千葉県、幕張メッセ
  • Year and Date: 2012-05-22
• [Presentation] Fabric and petrological characteristics of serpentinized peridotites from the southern Mariana Trench (2011)
  • Author(s): Michibayashi, K., Uehara, S., Ohara, Y. and Ishii, T.
  • Organizer: Abstract V51I-02(Invited), AGU 2011 Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 20111204-09
• [Presentation] Geology of a dying backarc spreading segment : results of high-density samplings of Godzilla Megamullion (2011)
  • Author(s): Ohara, Y., J. E. Snow, K. Michibayashi, H. J. B. Dick, Y. Harigane, K. Tani, H. Yamashita, O. Ishizuka, M. Loocke, T. Ishii, and K. Okino
  • Organizer: 2011 AGU Fall Meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 20110000
• [Presentation] Structure and composition of the Southern Mariana Forearc : Shinkai 6500 dive studies (2010)
  • Author(s): Ohara, Y.
  • Organizer: The fifth international symposium on application of marine geophysical data and undersea feature names, Korean Cartographic Association
  • Place of Presentation: Busan, Korea
  • Year and Date: 2010-10-21
• [Presentation] ゴジラムリオン研究チーム、フィリピン海背弧拡大とゴジラムリオンの形成 (2010)
  • Author(s): 小原泰彦・Jonathan E. Snow・石塚治・谷健一郎・石井輝秋
  • Organizer: 日本地球惑星科学連合2010大会
  • Place of Presentation: 千葉県、幕張メッセ
  • Year and Date: 2010-05-27