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Origin of red beds and paleosols in the Palaeoproterozoic Transvaal and Olifansthoek Supergroups of South Africa: provenance versus metasomatic controls
(Wiley-Blackwell, 2018-01-01)
The Palaeoproterozoic Transvaal and Olifantshoek Supergroups of South Africa contain some of the earliest hematite-rich sedimentary rocks (red-beds) and paleosols on record. The origin of these rocks has been variously ...
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 ...
METASOMATIC EVOLUTION OF GRANITES, NORTHEAST MINAS GERAIS, BRAZILMETASOMATIC EVOLUTION OF GRANITES, NORTHEAST MINAS GERAIS, BRAZIL
(Sociedade Brasileira de Geologia, 2018)
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 ...
Slab-derived components in the subcontinental lithospheric mantle beneath Chilean Patagonia: Geochemistry and Sr–Nd–Pb isotopes of mantle xenoliths and host basalt
(Elsevier, 2017)
In subduction zones, ultramafic xenoliths hosted in alkaline basalts can yield significant information about
the role of potential slab-derived components in the subcontinental lithospheric mantle (SCLM). Chemical ...
Chloritic alteration in the east flank of the Caçapava Granite, State of Rio Grande do Sul: metasomatic evolution and associated Cu-Fe sulfidesAlteração clorítica no flanco leste do Granito Caçapava, Rio Grande do Sul: evolução do metassomatismo e sulfetos de Cu-Fe associados
(Universidade de São Paulo, Instituto de Geociências, 1918)