The mechanism of stable isotope fractionation of heavy elements and its application to granite petrogenesis

• Project/Area Number: 24540527
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Geochemistry/Astrochemistry
• Research Institution: Kwansei Gakuin University
• Principal Investigator: TSUBOI MOTOHIRO 関西学院大学, 理工学部, 准教授 (60411774)
• Co-Investigator(Kenkyū-buntansha): ASAHARA Yoshihiro 名古屋大学, 大学院環境学研究科, 助教 (10281065)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2012: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
• Keywords: 安定同位体 / 花崗岩 / ストロンチウム / 同位体

Outline of Final Research Achievements

The Tadamigawa granitic rocks was studied as a case study to understand the mechanism of stable isotope fractionation of heavy elements within the igneous rocks. Systematic strontium stable isotope analyses were carried out with the use of double spike TIMS technique. The age of the Tadamigawa granitic pluton is c. 100 Ma and it may be derived from a single parental magma by fractional crystallization. The stable isotopic ratios of strontium within the Tadamigawa granitic rocks show a large variation. The fractionation of Sr stable isotopes of igneous rocks may be caused by the differentiation of plagioclase in the magma chamber.

Research Products

• [Journal Article] 福島県南西部只見川花崗岩類の全岩化学組成およびK-Ar年代 (2014)
  • Author(s): 谷岡裕大・若杉勇輝・壷井基裕
  • Journal Title: 岩石鉱物科学 Volume: 43 Issue: 6 Pages: 215-227
  • DOI: 10.2465/gkk.130902b
  • NAID: 130004793345
  • Peer Reviewed
• [Journal Article] 西南日本金剛山地に分布する葛城トーナル岩の地球化学的特徴 (2014)
  • Author(s): 竹村建人・壷井基裕
  • Journal Title: MAGMA Volume: 96 Pages: 31-44
  • Peer Reviewed
• [Journal Article] 顕微赤外分光法を用いた岩石の地質学的温度計解析 (2014)
  • Author(s): 壷井基裕・木村雅早
  • Journal Title: FTIR TALK LETTER Volume: 22 Pages: 2-5
• [Journal Article] Magmatic zoisite and epidote in tonalite of Ryoke belt, central Japan (2014)
  • Author(s): Masumoto, Y., Enami, M., Tsuboi, M. and Hong Mei
  • Journal Title: European Journal of Mineralogy Volume: 26 Issue: 2 Pages: 279-291
  • DOI: 10.1127/0935-1221/2014/0026-2360
  • Peer Reviewed
• [Journal Article] The role of heterogenetic mantle in the genesis of adakites northeast of Sanandaj, northwestern Iran (2014)
  • Author(s): Hossein Azizi, Yoshihiro Asahara, Motohiro Tsuboi, Kento Takemura and Saman Razyani
  • Journal Title: Chemie der Erde Volume: 74 Issue: 1 Pages: 87-97
  • DOI: 10.1016/j.chemer.2013.09.008
  • Peer Reviewed
• [Journal Article] Quaternary high-Nb basalts: existence of young oceanic crust under the Sanandaj-Sirjan Zone, NW Iran (2014)
  • Author(s): Hossein Azizi, Yoshihiro Asahara and Motohiro Tsuboi
  • Journal Title: International Geology Review Volume: 56 Issue: 2 Pages: 167-186
  • DOI: 10.1080/00206814.2013.821268
  • Peer Reviewed
• [Journal Article] Petrogenesis and implications of jadeite-bearing kyanite eclogite from the Sanbagawa belt (SW Japan) (2013)
  • Author(s): Shunsuke Endo and Motohiro Tsuboi
  • Journal Title: Journal of Metamorphic Geology Volume: 31 Issue: 6 Pages: 647-661
  • DOI: 10.1111/jmg.12038
  • Peer Reviewed
• [Journal Article] Slow subduction and buoyant exhumation of the Sanbagawa eclogite (2012)
  • Author(s): Endo, S., Wallis, S., Tsuboi, M., Aoya, M. and Uehara, S.
  • Journal Title: Lithos Volume: 146 Pages: 183-201
  • DOI: 10.1016/j.lithos.2012.05.010
  • Peer Reviewed
• [Presentation] 岐阜県西部・貝月山花崗岩中に産するCaに富む斜長石 (2014)
  • Author(s): 紅梅・榎並正樹・壷井基裕
  • Organizer: 日本鉱物科学会2014年年会
  • Place of Presentation: 熊本大学
  • Year and Date: 2014-09-17 – 2014-09-19
• [Presentation] 火成岩類の高精度Sr安定同位体分析 (2014)
  • Author(s): 若木重行・谷岡裕大・若杉勇輝・壷井基裕・石川剛志
  • Organizer: 2014年度日本地球化学会年会
  • Place of Presentation: 富山大学
  • Year and Date: 2014-09-16 – 2014-09-18
• [Presentation] 阿保花崗岩東部岩体の全岩化学組成とSr同位体組成 (2014)
  • Author(s): 小川ひとみ・壷井基裕
  • Organizer: 日本地質学会第121年学術大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2014-09-13 – 2014-09-15
• [Presentation] 福島県南西部只見川古期花崗岩類のU-PbおよびK-Ar年代 (2014)
  • Author(s): 若杉勇輝・谷岡裕大・壷井基裕・淺原良浩
  • Organizer: 日本地質学会第121年学術大会
  • Place of Presentation: 鹿児島大学
  • Year and Date: 2014-09-13 – 2014-09-15
• [Presentation] Infrared and Raman Spectroscopic Study of Calcite in the Contact Aureole of the Granite: A Case Study of the Kaizukiyama area, Southwestern Japan (2013)
  • Author(s): Motohiro Tsuboi and Asaki Kimura
  • Organizer: 7th International Conference on Advanced Vibrational Spectroscopy
  • Place of Presentation: Kobe Convention Center, Kobe, JAPAN
• [Presentation] 熊野酸性火成岩類の全岩化学組成と含有鉱物
  • Author(s): 角拓也・壷井基裕・古川邦之・金丸龍夫
  • Organizer: 日本地質学会第120年学術大会
  • Place of Presentation: 東北大学
• [Presentation] 近畿地方東部阿保花崗岩の全岩化学組成とその成因
  • Author(s): 小川ひとみ・壷井基裕
  • Organizer: 日本地質学会第120年学術大会
  • Place of Presentation: 東北大学
• [Presentation] 東北日本只見川古期花崗岩類の黒雲母K-Ar年代と地球化学的特徴
  • Author(s): 谷岡裕大・上林三四郎・壷井基裕
  • Organizer: 日本地質学会第120年学術大会
  • Place of Presentation: 東北大学
• [Presentation] 紀伊半島に分布する中期中新世凝灰岩類の全岩化学組成による比較
  • Author(s): 原川朋矢, 壷井基裕, 古川邦之, 金丸龍夫
  • Organizer: 日本地質学会第119年学術大会
  • Place of Presentation: 大阪府立大学
• [Presentation] 西南日本金剛山地に分布するアダカイト質花崗岩の地球化学的特徴
  • Author(s): 竹村建人, 壷井基裕
  • Organizer: 日本地質学会第119年学術大会
  • Place of Presentation: 大阪府立大学
• [Presentation] 熊野酸性岩類の希土類元素パターンとFe2O3/FeO比
  • Author(s): 角 拓也, 壷井基裕, 古川邦之, 金丸龍夫
  • Organizer: 日本地質学会第119年学術大会
  • Place of Presentation: 大阪府立大学
• [Presentation] 室生火砕流堆積物とその類似凝灰岩の全岩化学組成
  • Author(s): 原川朋矢, 壷井基裕
  • Organizer: 日本地球惑星科学連合2012年大会
  • Place of Presentation: 幕張メッセ国際会議場（千葉県）
• [Presentation] 希土類元素組成からみた熊野酸性岩類の成因
  • Author(s): 角拓也, 壷井基裕
  • Organizer: 日本地球惑星科学連合2012年大会
  • Place of Presentation: 幕張メッセ国際会議場（千葉県）
• [Presentation] 三波川帯・五良津岩体のひすい輝石‐藍晶石エクロジャイトの成因と意味
  • Author(s): 遠藤俊祐, 壷井基裕
  • Organizer: 日本地球惑星科学連合2012年大会
  • Place of Presentation: 幕張メッセ国際会議場（千葉県）
• [Presentation] 東北日本只見川古期花崗岩類の全岩化学組成および希土類組成
  • Author(s): 谷岡裕大, 壷井基裕
  • Organizer: 日本地球惑星科学連合2012年大会
  • Place of Presentation: 幕張メッセ国際会議場（千葉県）