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作者:Giorgio Rivalenti , Maurizio Mazzucchelli , Angela Laurora ...
来源:[J].Journal of South American Earth Sciences(IF 1.533), 2004, Vol.17 (2), pp.121-152
摘要:Abstract(#br)The backarc Patagonia mantle underwent pervasive regional re-crystallisation that left only remnants of the pre-existing mantle. Anhydrous xenoliths (dominantly lherzolites and harzburgites, few dunites) are predominant. Xenoliths containing hydrous phases (lherzolit...
作者:Giorgio Rivalenti , Maurizio Mazzucchelli , Alberto Zanetti ...
来源:[J].LITHOS(IF 3.779), 2007, Vol.99 (1), pp.45-67
摘要:Abstract(#br)The alkali basalts of the Cerro de los Chenques quaternary backarc volcano (200 km E of the volcanic arc) carry to the surface abundant spinel-facies mantle xenoliths (lherzolites, harzburgites and dunites). The clinopyroxene geochemistry indicates that the pristine ...
作者:Claire A. Currie , Ritske S. Huismans , Christopher Beaumont
来源:[J].Earth and Planetary Science Letters(IF 4.349), 2008, Vol.269 (3), pp.436-447
摘要:Abstract(#br)Many continental backarcs have thin (∼ 60 km) lithosphere for 100s of km behind the volcanic arc, even where there has been no significant extension. One mechanism to produce thin backarc lithosphere is through gravitational thinning of normal thickness lithosphere...

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