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作者:... Jean-Louis Paquette , Gilles Chazot , Riccardo Vannucci
来源:[J].Arabian Journal of Geosciences(IF 0.74), 2019, Vol.12 (9), pp.1-12Springer
摘要:Abstract(#br)Trachyte plugs from the Natash volcanic field have been precisely dated using in situ U-Pb geochronology on zircon grains at ~93 Ma. Available zircon ages thus suggest that the overall volcanic history at Natash was probably shorter than previously estimated based on...
作者:Riccardo Vannucci , Michel Grégoire ...
来源:[J].LITHOS(IF 3.779), 2015, Vol.232, pp.49-75Elsevier
摘要:Abstract(#br)Pyroxenites and garnet pyroxenites are mantle heterogeneities characterized by a lower solidus temperature than the enclosing peridotites; it follows that they are preferentially involved during magma genesis. Constraining their origin, composition, and the inte...
作者:... Ana Aguiar Accioly , Riccardo Vannucci , Maurizio Mazzuchelli
来源:[J].International Geology Review(IF 3.359), 1995, Vol.37 (11), pp.981-991Taylor & Francis
摘要:The meta-igneous rocks in the Pianco-Alto Brigida foldbelt, Borborema Province (northeastern Brazil) comprises, in the studied area, greenschists, amphibolite, and felsic gneisses derived from basalt to rhyolite precursors. In chemical terms, the mafic rocks are divided into thre...
作者:Luisa Ottolini , Brieuc Le Fèvre , Riccardo Vannucci
来源:[J].Earth and Planetary Science Letters(IF 4.349), 2004, Vol.228 (1-2), pp.19-36Elsevier
摘要:Abstract(#br)The importance of Li and B geochemistry has long been recognised, owing specifically to their characteristic behaviours during processes involving fluid phases. However, the lack of a set of validated reference data for the “normal” Earth mantle has hampered the...
作者:Riccardo Vannucci , Ciro Teixeira Correia
来源:[J].LITHOS(IF 3.779), 2010, Vol.119 (3), pp.485-500Elsevier
摘要:Abstract(#br)Trace element and isotopic data obtained for mantle spinel lherzolites and diorite dykes from the Baldissero massif (Ivrea–Verbano Zone, Western Italy) provide new, valuable constraints on the petrologic and geodynamic evolution of the Southern Alps in Paleozoic...
作者:Massimo Tiepolo , Riccardo Vannucci
来源:[J].LITHOS(IF 3.779), 2014, Vol.208-209, pp.16-20Elsevier
摘要:Abstract(#br)The continental crust (CC) and the depleted mantle (DM) are generally assumed to be complementary reservoirs within the Earth. However, the mixture between CC and upper mantle does not generate the Nb/Ta and Nb/La ratios of chondrites. A reservoir with superchondriti...
作者:Riccardo Vannucci , Claire Bollinger ...
来源:[J].LITHOS(IF 3.779), 2007, Vol.99 (1), pp.45-67Elsevier
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 pris...
作者:Riccardo Vannucci , Elisabetta Rampone ...
来源:[J].Earth and Planetary Science Letters(IF 4.349), 1996, Vol.139 (3), pp.423-437Elsevier
摘要:Abstract(#br)Comparison of 360 trace element analyses of clinopyroxenes from peridotites indicates that clinopyroxene composition cannot discriminate between suboceanic and subcontinental mantle. Clinopyroxenes from abyssal and fore-arc peridotites have the lowest incompatible el...
作者:... Luisa Ottolini , Thomas T Pettke , Riccardo Vannucci
来源:[J].Earth and Planetary Science Letters(IF 4.349), 2004, Vol.222 (1), pp.217-234Elsevier
摘要:Abstract(#br)We present an inventory of B, Cl and Li concentrations in (a) key minerals from a set of ultramafic samples featuring the main evolutionary stages encountered by the subducted oceanic mantle, and in (b) fluid inclusions produced during high-pressure breakdown of...
作者:Riccardo Vannucci , Joerg Hermann ...
来源:[J].Earth and Planetary Science Letters(IF 4.349), 2001, Vol.192 (3), pp.457-470Elsevier
摘要:Abstract(#br)We present first trace element analyses of the fluid produced during breakdown of antigorite serpentine, a major dehydration reaction occurring at depth within subducting oceanic plates. Microinclusions filled with crystals+ aqueous liquid are disseminated within oli...

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