Petrological study for finding of diamond in convergent plate margins

2010 Fiscal Year Final Research Report

• Project/Area Number: 20549003
• 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: Kanazawa University
• Principal Investigator: MIZUKAMI Tomoyuki 金沢大学, 自然システム学系, 助教 (80396811)
• Project Period (FY): 2008 – 2010
• Keywords: 地殻・マントル物質 / 岩石・鉱物・鉱床学 / テクトニクス

Research Abstract

In order to understand a petrological background for the natural diamond from Japan I carried out a petrological study of the mantle and cructal xenoliths in the Shingu alkaline basaltic dike The results suggest the following magmatic events :(1) high degree of partial meling of mantle and production of a large amount of magma, and subsequent melt transport though veins ;(2) mantle metasomatism probably by iron-rich melt ;(3) formation of gabbro-norite through interaction between mantle and undersaturated alkaline magmas that have caused at depths. These magmatic activities have significant contributions to the thermal and lithological structures just before the subduction of Philippine Sea plate. Although there is no petrological signature found in the xenoliths for diamond-stable high-pressure conditions, the host alkali basaltic magma with significant amount of CO2 might be such a high pressure origin.

Research Products

• [Journal Article] Raman spectroscopy of hydrous inclusions in olivine and orthopyroxene in ophiolitic barzburgite : Implications for elementary processes in serpentinization (2011)
  • Author(s): Miura, M., Arai, S. and Mizukami, T
  • Journal Title: Journal of Mineralogical and Petrological Sciences Volume: 106 Pages: 91-96
• [Journal Article] Direct evidence for upper mantle structure in the NW Pacific Plate : Microstructural analysis of a petit-spot peridotite xenolith (2011)
  • Author(s): Harigane, Y., Mizukami, T., Morishita, T., Michibayashi, K., Abe, N. and Hirano, N.
  • Journal Title: Earth and Planetary Science Letters Volume: 302 Pages: 194-202
• [Journal Article] Extending the applicability of the Raman carbonaceous-material geothermometer using data from contact metamorphic rocks (2010)
  • Author(s): Aoya, M., Kouketsu, Y., Endo, S., Shimizu, H., Mizukami, T., Nakamura, D. and Wallis, S
  • Journal Title: Journal ofMetamorphic Geology Volume: 28 Pages: 895-914
• [Journal Article] Seawater-derived noble gases and halogens preserved in exhumed mantle wedge peridotite (2010)
  • Author(s): Sumino, H., Burgess, R., Holland, G., Mizukami, T., Wallis, S. and Ballentine, C. J.
  • Journal Title: Earth and Planetary Science Letters Volume: 294 Pages: 163-172
• [Journal Article] Omphacite-bearing metapelite from the Besshi region, Sambagawa metamorphic belt (2010)
  • Author(s): Kouketsu, Y., Enami, M. and Mizukami, T
  • Journal Title: Journal of Mineralogical and Petrological Sciences Volume: 105 Pages: 9-19
• [Journal Article] Subduction of mantle wedge peridotites : Evidence from the Higashi-akaishi ultramafic body in the Sanbagawa metamorphic belt (2010)
  • Author(s): Hattori, K., Wallis, S., Enami, M. and Mizukami, T
  • Journal Title: Island Arc Volume: 19 Pages: 192-207
• [Journal Article] High-P metamorphism, pattern of induced flow in the mantle wedge, and the link with plutonism in paired metamorphic belts (2009)
  • Author(s): Aoya, M., Mizukami, T., Uehara, S. and Wallis, S.
  • Journal Title: Terra Nova Volume: 21 Pages: 67-73
• [Presentation] 愛媛県新宮に産する斜長石を含むかんらん岩捕獲岩の岩石学的研究 (2010)
  • Author(s): 野口渉・水上知行
  • Organizer: 日本地質学会2010年大会
  • Place of Presentation: 富山大学(富山県)
  • Year and Date: 2010-09-18
• [Presentation] 三波川帯東赤石かんらん岩体のかんらん石-単斜輝石集積岩の起源マグマ (2010)
  • Author(s): 服部達也・水上知行・荒井章司・田村明弘
  • Organizer: 日本地質学会2010年大会
  • Place of Presentation: 富山大学(富山県)
  • Year and Date: 2010-09-18
• [Presentation] Higashi-akaishi peridotite body from a hanging wall of an oceanic subduction zone at the east Eurasian margin (2010)
  • Author(s): Mizukami, T., Wallis, S., Hattori, K. and Enami, M.
  • Organizer: Goldschmidt 2010(Geochemistry Conference)
  • Place of Presentation: Knoxville Convention Center(USA)
  • Year and Date: 2010-06-16
• [Presentation] Compositional layering of the Higashi-akaishi peridotite body in Sanbagawa belt : A record of fractionational crystallization (2010)
  • Author(s): Hattori, T. and Mizukami, T.
  • Organizer: 日本地球惑星科学連合大会2010
  • Place of Presentation: 幕張メッセ(千葉県)
  • Year and Date: 2010-05-26
• [Presentation] Pressure estimation using Raman CO2 densimeter (2010)
  • Author(s): Mizukami, T
  • Organizer: 日本地球惑星科学連合大会2010
  • Place of Presentation: 幕張メッセ(千葉県)
  • Year and Date: 2010-05-25
• [Presentation] 四国新宮地域に産する地殻-マントル捕獲岩から読み取るユーラシア大陸東縁の熱構造 (2009)
  • Author(s): 水上知行
  • Organizer: 日本地質学会2009年会
  • Place of Presentation: 岡山理科大学(岡山県)
  • Year and Date: 2009-09-04
• [Presentation] クリソタイルO-H結合の収縮挙動:ラマン分光による高圧下その場観察 (2009)
  • Author(s): 水上知行・鍵裕之・Simon Wallis・福良哲史
  • Organizer: 日本惑星地球科学連合2009年会
  • Place of Presentation: 幕張メッセ(千葉県)
  • Year and Date: 2009-05-16
• [Presentation] 三波川帯東赤石岩体周辺のザクロ石中石英包有物の残留歪み (2008)
  • Author(s): 水上知行・榎並正樹・毛利崇・ウォリス=サイモン
  • Organizer: 日本鉱物科学会2008年会
  • Place of Presentation: 秋田大学(秋田県)
  • Year and Date: 2008-09-20
• [Presentation] ラマン密度計のための二酸化炭素標準試料 (2008)
  • Author(s): 水上知行,荒川雅,山本順司,鍵裕之,榎並正樹,川本竜彦,小林記之,平島崇男,中野信彦,小山内康人,石橋秀巳, M. Satish-Kumar
  • Place of Presentation: 幕張メッセ(千葉県)
  • Year and Date: 2008-05-25