Vanadiniferous micaceous concretions in the Patquia Formation (Permian), Sierra de Maz, Province of La Rioja

These concretions form discrete spherical bodies 2 to 20 cm in sizes, within medium grained massive sandstone (arkosic arenite). Three concentric zones are recognized: a) dark green to black core composed of quartz and feldespar cemented by illite and roscoellite, b) an intermediate pale red zone of...

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Autores principales: Caselli, A.T., Limarino, C.O., Castro, L.N.
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: 1997
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00044822_v52_n2_p223_Caselli
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