Chemical evolution of the upper mantle : Constraints from pressure temperature history of the major European peridotite bodies.

2011 Fiscal Year Final Research Report

• Project/Area Number: 21340158
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: The University of Tokyo
• Principal Investigator: OZAWA Kazuhito 東京大学, 大学院・理学系研究科, 教授 (90160853)
• Co-Investigator(Kenkyū-buntansha): OBATA Masaaki 京都大学, 大学院・理学研究科, 教授 (20126486)
• Project Period (FY): 2009 – 2011
• Keywords: 地殻 / マントル / 核

Research Abstract

In order to understand the chemical evolution of the upper mantle, we have examined ascent history of orogenic mantle bodies occurring in Europe : peridotite masses in Pyrenees, Ronda ultramafic complex, and Lanzo ultramafic complex. We conducted field survey in the three ultramafic bodies and collected many samples, on which thin section observation, EPMA analysis, and SEM/EBSD analysis were made. We estimated decompressional histories of these ultramafic bodies including the initial condition. The results were compared with our data on the Horoman ultramafic complex, Hokkaido. There is a wide variation in ascent history of lithospheric mantle, each of which corresponds to dynamics of thermal and mechanical interaction of lithospheric and asthenospheric mantle.

Research Products

• [Journal Article] Therole of exchange reactions in oxygenisotope fractionation during CAI andchondrule formation (2012)
  • Author(s): Nagahara, H. and Ozawa, K.
  • Journal Title: Meteoritics and Planetary Science Volume: (in press)
  • Peer Reviewed
• [Journal Article] Kinetics of evaporation of forsteritein vacuum (2012)
  • Author(s): Ozawa, K., Nagahara, H., Morioka, M., Matsumoto, M., Hutcheon, I. D., Noguchi, T., and Kagi, H.
  • Journal Title: American Mineralogist Volume: 97 Pages: 80-99
  • DOI: 10.2138/am.2012.3750
  • Peer Reviewed
• [Journal Article] Cooperation of upper and lowerboundary layer fractionations in asheet-like intrusion (2011)
  • Author(s): Takada, Y. and Ozawa, K.
  • Journal Title: Composition and microstructure of the Aosawa doleritesill in Yamagata prefecture, northeastern Japan Volume: 106 Pages: 277-298
  • DOI: doi:10.2465/jmps.100306
  • Peer Reviewed
• [Journal Article] Kinetic condensationand evaporation of metallic iron andimplications for metallic iron dustformation (2011)
  • Author(s): Tachibana, S., Nagahara, H., zawa, K., Ikeda, Y., Nomura, R., Tatsumi, K., and Joh, Y.
  • Journal Title: Astrophysical Journal Volume: 736 Pages: 16
  • DOI: doi:10.1088/0004-637X/736/1/16
  • Peer Reviewed
• [Journal Article] Magmaticfractionation by compositionalconvection in a sheet-like magma body (2011)
  • Author(s): Simura, . and Ozawa, K.
  • Journal Title: constraints from the Nosappumisaki Intrusion, northern Japan Volume: 52 Pages: 1887-1925
  • DOI: doi:10.1093/petrology/egr034
  • Peer Reviewed
• [Journal Article] Topotaxic relationships betweenspinel and pyroxene in kelyphite aftergarnet in mantle-derived peridotitesand their implications to reactionmechanism and kinetics (2011)
  • Author(s): Obata, M. and Ozawa, K.
  • Journal Title: Mineralogy and Petrology Volume: 101 Pages: 217-224
  • DOI: DOI:10.1007/s00710-011-0145-y.
  • Peer Reviewed
• [Journal Article] マントル科学研究の最近の動向-特に再肥沃化,レオロジー,オフィオライト問題:第5回国際レルゾライト会議報告 (2010)
  • Author(s): 森下知晃・小澤一仁・小畑正明
  • Journal Title: 岩石鉱物科学 Volume: 39 Pages: 85-103
  • Peer Reviewed
• [Journal Article] 月地殻形成条件を用いたマグマオーシャン化学組成制約への試み (2010)
  • Author(s): 酒井理沙・久城育夫・永原裕子・小澤一仁・橘省吾
  • Journal Title: 日本惑星科学会誌 Volume: 19 Pages: 82-88
  • Peer Reviewed
• [Journal Article] Laboratory condensation and reactionof silicate dust (2009)
  • Author(s): Nagahara, H., Ozawa, K., Ogawa, R., Tachibana, S., and Chiba, H.
  • Journal Title: ASP Conf. Ser Volume: 414 Pages: 403-410
  • Peer Reviewed
• [Presentation] ざくろ石かんらん岩中に見いだされたざくろ石の等化学組成分解によって形成したケリファイト (2011)
  • Author(s): 小畑正明・小澤一仁・苗村康輔
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2011-05-26
• [Presentation] 幌満かんらん岩体北部の温度・圧力・変形履歴 (2011)
  • Author(s): 荻野哲・小澤一仁・永原裕子
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2011-05-26
• [Presentation] 輝石内部の化学・組織パターンから読み解くマントルかんらん岩の変形史 (2011)
  • Author(s): 小澤一仁・ボディニエジャンルイ・ガリドカルロス・永原裕子
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2011-05-24
• [Presentation] 超マフィック岩中の極細粒断層岩mylonitic pseudotachylyteの変形機構 (2011)
  • Author(s): 上田匡将・小畑正明・清水以知子・唐戸俊一郎・小澤一仁
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2011-05-22
• [Presentation] New approach fordecoding P-T-d history based on Aldistribution in orthopyroxene (2010)
  • Author(s): Ozawa, K, Bodinier, J-L, Garrido, C, and Nagahara, H.
  • Organizer: American Geophysical Union
  • Place of Presentation: San Francisco
  • Year and Date: 2010-12-16
• [Presentation] 幌満岩体斜長石かんらん岩に含まれる斜長石-かんらん石集合体中のSrの2次元分布 (2010)
  • Author(s): 小澤一仁
  • Organizer: 日本地球惑星科学連合
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2010-05-23
• [Presentation] Two types ofdifferentiation mechanisms in asheet-like intrusion (2010)
  • Author(s): 高田悠志・小澤一仁
  • Organizer: 日本地球惑星科学連合2010年大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2010-05-23
• [Presentation] Two-dimensionaldistribution of trace elements in areaction texture in plagioclaselherzolite from the Horoman complex (2009)
  • Author(s): Ozawa, K
  • Organizer: American Geophysical Union
  • Place of Presentation: San Francisco
  • Year and Date: 2009-12-17
• [Presentation] Ductile and brittle deformation inperidotite recorded in ultramaficpseudotachylytes and associated faultrocks (2009)
  • Author(s): Ueda, T., Obata, M., Ozawa, K., Di Toro, G.
  • Organizer: American Geophysical Union
  • Place of Presentation: San Francisco
  • Year and Date: 2009-12-17
• [Presentation] Globalsystematics of formation conditions ofsubduction zone magmas and theirtectonic implications (2009)
  • Author(s): Ogitsu, I., and Ozawa, K.
  • Organizer: American Geophysical Union
  • Place of Presentation: San Francisco
  • Year and Date: 2009-12-17
• [Presentation] Progressive melting of a hot mantlediapir with entrainment beneathsouthwestern Japan (2009)
  • Author(s): Sakuyama, T., Yoshikawa, M., Shibata, T., Nakai, T., Sumino, H., and Ozawa, K.
  • Organizer: American Geophysical Union
  • Place of Presentation: San Francisco
  • Year and Date: 2009-12-17
• [Presentation] 板状貫入岩体の分化過程:青沢ドレライトからの制約 (2009)
  • Author(s): 高田悠志・小澤一仁
  • Organizer: 日本鉱物科学会2009年会
  • Place of Presentation: 北海道大学
  • Year and Date: 2009-09-08
• [Presentation] ざくろ石のケリファイト化反応に伴う物質移動、体積変化、応力発生の連関についてーその2 (2009)
  • Author(s): 小畑正明・清水以知子・小澤一仁・Spengler Dirk
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2009-05-16
• [Presentation] EBSDを用いたざくろ石起源のケリファイトの微細組織の研究ーその2 (2009)
  • Author(s): 小畑正明・小澤一仁
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2009-05-16
• [Presentation] Upwelling and melting of a hotmantle diapir beneath northwestern Kyushu (2009)
  • Author(s): 柵山徹也・中井俊一・角野浩史・小澤一仁
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2009-05-16
• [Presentation] Differentiationmechanisms in a sheet-like intrusion (2009)
  • Author(s): 高田悠志・小澤一仁
  • Organizer: 日本地球惑星科学連合2009年大会
  • Place of Presentation: 幕張メッセ
  • Year and Date: 2009-05-16