Melanite-bearing nepheline syenite fragments and 40Ar/39Ar age of phlogopite megacrysts in conduit breccia from the Poços de Caldas Alkaline Massif (MG/SP), and implications

ABSTRACT: The Poços de Caldas Alkaline Massif, located in southeast Brazil, is composed of tinguaites, as well as phonolites and nepheline syenites (NeS), together with assorted pyroclastic rocks. The latter constitute deposits within the Vale do Quartel, and show fragments of alkaline rocks (NeS, t...

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Xehetasun bibliografikoak

Egile Nagusiak:	Silvio Roberto Farias Vlach, Horstpeter Herberto Gustavo Jose Ulbrich, Mabel Norma Costas Ulbrich, Paulo Marcos Vasconcelos
Formatua:	Artigo
Hizkuntza:	Inglês
Argitaratua:	Sociedade Brasileira de Geologia
Saila:	Brazilian Journal of Geology
Gaiak:	Melanite-bearing nepheline syenite fragments phlogopite megacrysts conduit breccia 40 Ar/ 39 Ar age Poços de Caldas Alkaline Massif
Sarrera elektronikoa:	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892018000200391&lng=en&tlng=en
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