中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Volatile element isotopes of submarine hydrothermal mineral deposits in the Western Pacific

文献类型:期刊论文

作者Ooki, Mitsuhiro1,2; Kagoshima, Takanori1; Takahata, Naoto1; Ishibashi, Jun-ichiro3; Lan, Tefang4; Guo, Zhengfu5; Sano, Yuji1,6
刊名GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
出版日期2016-06-01
卷号17期号:6页码:2128-2142
关键词hydrothermal mineral deposits subduction zones noble gas stable isotopes marine sediment
DOI10.1002/2016GC006360
文献子类Article
英文摘要The abundance and isotopic compositions of volatile elements trapped in fluid inclusions of submarine hydrothermal mineral deposits in Western Pacific subduction zones (Okinawa Trough, Izu-Bonin arc, Mariana Trough, and Lau Basin) and in Kuroko ores in northeastern Japan are presented. The helium isotopic compositions corrected for air contribution of the Okinawa and Mariana troughs, ranging 4.49-7.68 Ra are lower than those of the Izu-Bonin and Lau Basin, 7.62-8.91 Ra. This characteristic might reflect the differences in regional tectonic setting. The Okinawa and Mariana troughs are related to back-arc spreading with strong graben sedimentary signature, whereas the Izu-Bonin arc is associated with island arc magmatism. The arc contribution to the Lau Basin volcanism is significantly strong, even though it is assigned to back-arc spreading. Nitrogen isotopes can also be explained by a similar hypothesis, whereas argon and carbon isotopes cannot be used to discriminate tectonic setting. C-13-CO2/He-3 and N-15-N-2/Ar-36 diagrams elucidate the source of carbon and nitrogen. The MOR-type mantle contributions to carbon are mostly smaller in the Okinawa and Mariana troughs (ranging 0.06-8.9% with the average of 2.4%) than in the Izu-Bonin and Lau Basin (2.1-25% with the average of 7.7%). The sedimentary contributions to nitrogen are larger in the Okinawa and Mariana troughs (11-65% with the average of 35%) than in the Izu-Bonin and Lau Basin (4-24% with the average of 15%), and the Kuroko samples agree well with the latter. Carbon and nitrogen fluxes are again higher in Okinawa trough than in Izu-Bonin arc.
WOS关键词MID-OKINAWA TROUGH ; BACK-ARC BASIN ; HELIUM ISOTOPE ; ATMOSPHERIC HELIUM ; CONTINENTAL-CRUST ; MIDOCEAN RIDGE ; CHEMICAL-COMPOSITION ; SUBDUCTION ZONES ; KUROKO DEPOSITS ; OCEANIC BASALTS
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000380728300010
资助机构MEXT, Japan(15H05830) ; MEXT, Japan(15H05830) ; MEXT, Japan(15H05830) ; MEXT, Japan(15H05830)
源URL[http://ir.iggcas.ac.cn/handle/132A11/53379]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
作者单位1.Univ Tokyo, Atmosphere & Ocean Res Inst, Kashiwa, Chiba, Japan
2.Mitsui Min & Smelting Co Ltd, Tokyo, Japan
3.Kyushu Univ, Dept Earth & Planetary Sci, Fac Sci, Fukuoka, Japan
4.Acad Sinica, Inst Earth Sci, Taipei, Taiwan
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
6.Natl Taiwan Univ, Dept Geosci, Taipei, Taiwan
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Ooki, Mitsuhiro,Kagoshima, Takanori,Takahata, Naoto,et al. Volatile element isotopes of submarine hydrothermal mineral deposits in the Western Pacific[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2016,17(6):2128-2142.
APA Ooki, Mitsuhiro.,Kagoshima, Takanori.,Takahata, Naoto.,Ishibashi, Jun-ichiro.,Lan, Tefang.,...&Sano, Yuji.(2016).Volatile element isotopes of submarine hydrothermal mineral deposits in the Western Pacific.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,17(6),2128-2142.
MLA Ooki, Mitsuhiro,et al."Volatile element isotopes of submarine hydrothermal mineral deposits in the Western Pacific".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 17.6(2016):2128-2142.

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来源:地质与地球物理研究所

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