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Highly siderophile elements mobility in the subcontinental lithospheric mantle beneath southern Patagonia
(Elsevier, 2018)
Peridotite xenoliths collected from alkali basalts in the Argentinian Patagonia reveal the existence of an ancient
depleted Paleoproterozoic mantle that records a subsequentmultistage metasomatic history.Metasomatismis ...
Petrology of Gameleira potassic lamprophyres, São Francisco Craton
(Academia Brasileira de Ciências, 2012)
Gameleira lamprophyres are dykes and mafic microgranular enclaves associated with the shoshonitic Gameleira monzonite. This association belongs to the Paleoproterozoic alkaline magmatism from Serrinha nucleus, northeast ...
Mineralogical and geochemical characterization of a rare ultramafic lamprophyre in the Tandilia belt basement, Río de la Plata Craton, Argentina
(Elsevier, 2013-01)
A metre-thick ultramafic lamprophyre dyke intrudes the basement of the andilia belt at the Sierra Alta de Vela, Argentina. A petrological and geochemical study of this rock and associated small dykes indicates a predominantly ...
The upper mantle beneath Patagonia, Argentina, documented by xenoliths from alkali basalts
(Pergamon-Elsevier Science Ltd, 2005-01)
Mantle xenoliths in alkali basaltic lavas (with ocean-island basalt chemical signatures) and cinder cones occur in several areas of Patagonia. A representative suite of mantle xenoliths was collected in the region between ...
Constraints on metasomatized mantle under Central South America: evidence from Jurassic alkaline lamprophyre dykes from the Eastern Cordillera, NM Argentina
(Springer Verlag Berlín, 2010-08)
In the Río Grande Valley, NW Argentina, several porphyritic panidiomorphic, ocelli-bearing dykes and sills intrude the Neoproterozoic to lower Paleozoic basement of the Eastern Cordillera. New petrographical and geochemical ...
Ferropyrosmalite-bearing fluid inclusions in the North Patagonian Andes metasedimentary basement, Argentina: A record of regional metasomatism
(Mineralogical Society of America, 2021)
Quartz segregations in paragneisses from the Paleozoic basement of the North Patagonian Andes contain highly saline multiphase fluid inclusions with the rare daughter mineral ferropyrosmalite detected by Raman analysis, ...
Fluxing of mantle carbon as a physical agent for metallogenic fertilization of the crust
(Nature, 2020)
Magmatic systems play a crucial role in enriching the crust with volatiles and elements that
reside primarily within the Earth’s mantle, including economically important metals like nickel,
copper and platinum-group ...
PETROLOGICAL STUDY OF SOME TECTONIC FRAGMENTS OF THE OPHIOLITIC MÉLANGE ABADIÂNIA (GO): I - THE PROTOLITH OF THE SERPENTINITE BODIESESTUDO PETROLÓGICO DE ALGUNS FRAGMENTOS TECTÔNICOS DA MELANGE OFIOLÍTICA EM ABADIÂNIA (GO): l - O PROTOLITO DOS CORPOS DE SERPENTINITO
(Sociedade Brasileira de Geologia, 2017)