Trace element and Sr-Nd isotopic features of ultramafic xenoliths from Kurose, Southwest Japan
作者： Masako YOSHIKAWA , Shoji ARAI , Yoshito ISHIDA , Akihiro TAMURA , Yohei SHIMIZU
DOI: 10.2465/JMPS.100622B
关键词: Metasomatism 、 Trace element 、 Partial melting 、 Island arc 、 Basalt 、 Lithosphere 、 Geology 、 Xenolith 、 Geochemistry 、 Ultramafic rock
摘要: Ultramafic xenoliths from Kurose, Southwest Japan, are fragments of the lithospheric mantle beneath back arc active Japan volcano-tectonic arc. Trace element and Sr-Nd isotopic compositions clinopyroxenes in ultramafic suggest that several enrichment processes responsible for geochemical variation. These would have witnessed following events: (1) open-system partial melting continental lithosphere with an influx asthenospheric melt MORB-like composition during formation back-arc basin resulted Sea opening, (2) under a fluid/melt derived subducted slab, (3) metasomatism after these events by island tholeiitic basalt Neogene period. Moreover, variations depletion levels Zr Ti source preceded metasomatic events.
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sci-hub.st 参考文章(35)
Shoji Arai, Hisatoshi Hirai, Petrographical notes on deep-seated and related rocks(1) Mantle peridotites from Kurose and Noyamadake alkali basalts,southwestern Japan Annual report of the Institute of Geoscience, the University of Tsukuba. ,vol. 9, pp. 65- 67 ,(1983)
Yasuhiko Ohara, Kantaro Fujioka, Teruaki Ishii, Hisayoshi Yurimoto, Peridotites and gabbros from the Parece Vela backarc basin: Unique tectonic window in an extinct backarc spreading ridge Geochemistry Geophysics Geosystems. ,vol. 4, pp. 8611- ,(2003) , 10.1029/2002GC000469
Yoshiyuki Tatsumi, Takeshi Hanyu, Geochemical modeling of dehydration and partial melting of subducting lithosphere: Toward a comprehensive understanding of high‐Mg andesite formation in the Setouchi volcanic belt, SW Japan Geochemistry Geophysics Geosystems. ,vol. 4, pp. 1081- ,(2003) , 10.1029/2003GC000530
Jun-Ichi Kimura, Adam J. R. Kent, Michael C. Rowe, Maiko Katakuse, Fumi Nakano, Bradley R. Hacker, Peter E. van Keken, Hiroshi Kawabata, Robert J. Stern, Origin of cross-chain geochemical variation in Quaternary lavas from the northern Izu arc: Using a quantitative mass balance approach to identify mantle sources and mantle wedge processes Geochemistry, Geophysics, Geosystems. ,vol. 11, pp. n/a- n/a ,(2010) , 10.1029/2010GC003050
A. W. Hofmann, Mantle geochemistry: the message from oceanic volcanism Nature. ,vol. 385, pp. 219- 229 ,(1997) , 10.1038/385219A0
Yoshiro Nishio, Shun’ichi Nakai, Junji Yamamoto, Hirochika Sumino, Takuya Matsumoto, Vladimir S Prikhod’ko, Shoji Arai, Lithium isotopic systematics of the mantle-derived ultramafic xenoliths: implications for EM1 origin Earth and Planetary Science Letters. ,vol. 217, pp. 245- 261 ,(2004) , 10.1016/S0012-821X(03)00606-X
Mitsunobu Tatsumoto, Yoichi Nakamura, DUPAL anomaly in the Sea of Japan: Pb, Nd, and Sr isotopic variations at the eastern Eurasian continental margin Geochimica et Cosmochimica Acta. ,vol. 55, pp. 3697- 3708 ,(1991) , 10.1016/0016-7037(91)90068-G
Brian L. Cousens, James F. Allan, Michael P. Gorton, Subduction-modified pelagic sediments as the enriched component in back-arc basalts from the Japan Sea: Ocean Drilling Program Sites 797 and 794 Contributions to Mineralogy and Petrology. ,vol. 117, pp. 421- 434 ,(1994) , 10.1007/BF00307275
Peter B. Kelemen, Henry J. B. Dick, James E. Quick, Formation of harzburgite by pervasive melt/rock reaction in the upper mantle Nature. ,vol. 358, pp. 635- 641 ,(1992) , 10.1038/358635A0
Tetsu Kogiso, Yoshiyuki Tatsumi, Satoshi Nakano, Trace element transport during dehydration processes in the subducted oceanic crust: 1. Experiments and implications for the origin of ocean island basalts Earth and Planetary Science Letters. ,vol. 148, pp. 193- 205 ,(1997) , 10.1016/S0012-821X(97)00018-6