Evolution of the lithospheric mantle in an extensional setting: Insights from ophiolitic peridotites
نویسندگان
چکیده
منابع مشابه
Petrogenesis of mantle peridotites from the South of Jazmourian, Makran accretionary prism, Iran
Mantle peridotites exposed in south Jazmourian comprise of lherzolite and porphyroclastic Cpx-bearing harzburgite in the lower part with chromitite lenses in the upper parts. Petrography and microprobe studies shows evidence of melt-peridotite interactions; post melting processes and subsolidus interactions, which has been associated with appearance of two generations of deformed primary pyroxe...
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Major elements, highly siderophile elements (HSE) and Re–Os isotope ratios were analysed in situ on individual sulfide grains in spinel peridotite xenoliths hosted by Miocene intraplate basalts from the Penghu Islands, Taiwan. The xenoliths represent texturally and compositionally different mantle domains, and the geochemical characteristics of the sulfides show changes in HSE distribution and ...
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s of 33rd International Geological Congress, 6–14 August 2008, Oslo. Coltorti, M., Bonadiman, C., O’Reilly, S. Y., Griffin, W. L. & Pearson, N. J. 2010. Buoyant ancient continental mantle embedded in oceanic lithospheric (Sal Island, Cape Verde Archipelago). Lithos, doi: 10.1016/j.lithos.2009.11.005. Davies, G. R., Nixon, P. H., Pearson, D. G. & Obata, M. 1993. Tectonic implications of graphiti...
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Differentiation of the Earth's mantle occurs principally through partial melting and extraction of basaltic melt. Among the mantle rocks occurring at the Earth's surface, harzburgites are widely considered as refractory mantle residues left after extraction of a basaltic component. In contrast, fertile lherzolites are generally regarded as pristine mantle, only weakly affected by partial meltin...
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Article history: Received 17 November 2009 Received in revised form 25 January 2010 Accepted 26 January 2010 Available online 23 February 2010 Editor: R.W. Carlson
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ژورنال
عنوان ژورنال: Lithosphere
سال: 2009
ISSN: 1947-4253,1941-8264
DOI: 10.1130/l30.1