Mid-Ocean ridge peridotites revisited: homogeneity/heterogeneity and the nature of the Oceanic plate
Project/Area Number |
26287134
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Petrology/Mineralogy/Economic geology
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Research Institution | Kanazawa University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
仙田 量子 国立研究開発法人海洋研究開発機構, 地球内部物質循環研究分野, 研究員 (50377991)
浜田 盛久 (濱田 盛久) 国立研究開発法人海洋研究開発機構, 地球内部物質循環研究分野, 研究員 (60456853)
鈴木 勝彦 国立研究開発法人海洋研究開発機構, 海底資源研究開発センター, グループリーダー (70251329)
針金 由美子 国立研究開発法人産業技術総合研究所, 地質情報研究部門, 研究員 (90569360)
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Co-Investigator(Renkei-kenkyūsha) |
TAMURA Akihiro 金沢大学, 自然システム学系, 博士研究員 (80401884)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2016: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
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Keywords | 海洋プレート / 海洋マントル / 部分溶融 / かんらん岩 / マントルかんらん岩 / 再肥沃化 / 島弧下マントル / 交代作用 / 中央海嶺 / マントル / 物質循環 / メルトーマントル反応 / モホ面 / 元素循環 / 深海性かんらん岩 / 地殻物質リサイクリング / モホ / マントル掘削 |
Outline of Final Research Achievements |
Results of this research on the sub-oceanic mantle peridotites are summarized as follows. 1) We suggested possibility of existence of ancient melted residue in abyssal peridotites recovered from mid-ocean ridge system (Indian Ocean) and its “crustallization” processes by melt-residual peridotite interactions. Addition to this, melting processes selectively accumulated ancient melting geochemical signatures by melt-rock interactions. 2) We clarified mid-ocean ridge type peridotite origin for mantle section of the Eastern end of the Jurassic-Cretaceous ophiolite belt (Tethys ophiolite belt), Andaman Ophiolite, and its modification at subduction setting during the initiation of subduction. 3) We examined back-arc magmatic processes deduced from peridotite xenolith in back arc region (Japan Sea). Our results suggest that the late stage of magma process is similar to those expected beneath Mid-ocean ridge setting, resulting in the similar depleted peridotites in both tectonic settings.
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Report
(4 results)
Research Products
(58 results)
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[Journal Article] Reaction microtextures in entrapped xenoliths in alkali basalts from the Deccan large igneous province, India: Implications to the origin and evolution2017
Author(s)
Chattopadhaya, S., Ghosh, B., Morishita, T., Nandy, S., Tamura, A., Bandyopadhyay, D.,
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Journal Title
Journal of Asian Earth Sciences
Volume: 138
Pages: 291-305
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Compositional variations in spinel-hosted pargasite inclusions in the olivine-rich rock from the oceanic crust?mantle boundary zone2016
Author(s)
Tamura, A., Morishita, T., Ishimaru, S., Hara, K., Sanfilippo, A., Arai, S.
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Journal Title
Contributions to Mineralogy and Petrology
Volume: XX
Pages: 39-39
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Hybrid troctolites from Mid-Ocean Ridges: inherited mantle in the lower crust2015
Author(s)
Sanfilippo, A., Morishita, T., Kumagai, H., Okino, K., Hara, K., Tamura, A., Arai, S.
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Journal Title
Lithos
Volume: 232
Pages: 124-130
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Measurement of whole-rock trace-element composition by flux-free fused glass and LA-ICP-MS: evaluation of simple and rapid routine work2015
Author(s)
Tamura, A., Akizawa, N., Otsuka, R., Kanayama, K., Python, M., Morishita, T., Arai, S.
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Journal Title
GEOCHEMICAL JOURNAL
Volume: 49
Issue: 3
Pages: 233-241
DOI
NAID
ISSN
0016-7002, 1880-5973
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] A record of spontaneous subduction initiation in the Izu-Bonin-Mariana arc2015
Author(s)
Arculus, R.J., Ishizuka, O., Bogus, K.A., Gurnis, M., Hickey-Vargas, R., Aljahdali, M.H., Bandini-Maeder, A.N., Barth, A.P., Brandl, P.A., Drab, L., do Monte Guerra, R., Hamada, M., et al.
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Journal Title
Nature Geoscience
Volume: 8
Pages: 728-733
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Moho Transition Zone in the Cretaceous Andaman ophiolite, India: a passage from the mantle to the crust.2014
Author(s)
Ghosh, B., Morishita, T., Gupta, B.S., Tamura, A., Arai, S. and Bandyopadhyay, D.
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Journal Title
Lithos
Volume: 198-199
Pages: 117-128
DOI
Related Report
Peer Reviewed
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[Presentation] Investigation into hydrology along bending-induced faults by off-Tohoku incoming plate sampling2015
Author(s)
Morishita, T., Morgan, J.P., Fujie, G., Abe, N, Ono, S.,
Organizer
日本地球惑星科学連合大会
Place of Presentation
幕張
Year and Date
2015-05-23
Related Report
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[Presentation] Example from harzburgite in Izu-Bonin forearc area2014
Author(s)
Harigane, Y., Michibayashi, K., Morishita, T., Dick, H.J.B., Ishiduka, O.
Organizer
Ophiolite Symposium
Place of Presentation
Damghan, Iran
Year and Date
2014-09-18
Related Report
Invited
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[Presentation] Osmium isotope heterogeneity in the Pacific uppermost mantle2014
Author(s)
Ishikawa, A., Senda, R., Tani, K., Suzuki, K., Ishii, T.
Organizer
6th International Orogenic Lherzolite Conference
Place of Presentation
Marrakech, Morocco.
Year and Date
2014-05-09
Related Report
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[Book] Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept2015
Author(s)
Morishita, T., Nakamura, K., Shibuya, T., Kumagai, H., Sato, T., Okino, K., Sato, H., Nauchi, R., Hara, K. and Takamaru, R.
Total Pages
666
Publisher
Springer
Related Report
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[Book] Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept2015
Author(s)
Morishita, T., Nakamura, K., Shibuya, T., Kumagai, H., Sato, T., Okino, K., Sato, H., Nauchi, R., Hara, K. and Takamaru, R
Total Pages
666
Publisher
Springer
Related Report