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...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Caselli, Alberto T., Limarino, Carlos Oscar, Castro, Liliana Norma
Publicado:	1997
Materias:	concretion diagenesis Permian sandstone vanadium Argentina
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v52_n2_p223_Caselli http://hdl.handle.net/20.500.12110/paper_00044822_v52_n2_p223_Caselli
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00044822_v52_n2_p223_Caselli
record_format	dspace
spelling	paper:paper_00044822_v52_n2_p223_Caselli2023-06-08T14:25:16Z Vanadiniferous micaceous concretions in the Patquia Formation (Permian), Sierra de Maz, Province of La Rioja Caselli, Alberto T. Limarino, Carlos Oscar Castro, Liliana Norma concretion diagenesis Permian sandstone vanadium Argentina 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 hematite-coated quartz, and c) a white, iron-leached outer zone. Edax and ICP analyses reveal high concentrations of vanadium mainly in zones a) and b) (60340 and 2582 ppm respectivily), uranium (237 and 163 ppm), rubidium (252ppm) and copper (178ppm). The concretions are interpreted as formed under eodiagenetic conditions before the development of haematite cement which gave the red colour to the host rock. Fil:Caselli, A.T. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Limarino, C.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Castro, L.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1997 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v52_n2_p223_Caselli http://hdl.handle.net/20.500.12110/paper_00044822_v52_n2_p223_Caselli
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	concretion diagenesis Permian sandstone vanadium Argentina
spellingShingle	concretion diagenesis Permian sandstone vanadium Argentina Caselli, Alberto T. Limarino, Carlos Oscar Castro, Liliana Norma Vanadiniferous micaceous concretions in the Patquia Formation (Permian), Sierra de Maz, Province of La Rioja
topic_facet	concretion diagenesis Permian sandstone vanadium Argentina
description	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 hematite-coated quartz, and c) a white, iron-leached outer zone. Edax and ICP analyses reveal high concentrations of vanadium mainly in zones a) and b) (60340 and 2582 ppm respectivily), uranium (237 and 163 ppm), rubidium (252ppm) and copper (178ppm). The concretions are interpreted as formed under eodiagenetic conditions before the development of haematite cement which gave the red colour to the host rock.
author	Caselli, Alberto T. Limarino, Carlos Oscar Castro, Liliana Norma
author_facet	Caselli, Alberto T. Limarino, Carlos Oscar Castro, Liliana Norma
author_sort	Caselli, Alberto T.
title	Vanadiniferous micaceous concretions in the Patquia Formation (Permian), Sierra de Maz, Province of La Rioja
title_short	Vanadiniferous micaceous concretions in the Patquia Formation (Permian), Sierra de Maz, Province of La Rioja
title_full	Vanadiniferous micaceous concretions in the Patquia Formation (Permian), Sierra de Maz, Province of La Rioja
title_fullStr	Vanadiniferous micaceous concretions in the Patquia Formation (Permian), Sierra de Maz, Province of La Rioja
title_full_unstemmed	Vanadiniferous micaceous concretions in the Patquia Formation (Permian), Sierra de Maz, Province of La Rioja
title_sort	vanadiniferous micaceous concretions in the patquia formation (permian), sierra de maz, province of la rioja
publishDate	1997
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00044822_v52_n2_p223_Caselli http://hdl.handle.net/20.500.12110/paper_00044822_v52_n2_p223_Caselli
work_keys_str_mv	AT casellialbertot vanadiniferousmicaceousconcretionsinthepatquiaformationpermiansierrademazprovinceoflarioja AT limarinocarlososcar vanadiniferousmicaceousconcretionsinthepatquiaformationpermiansierrademazprovinceoflarioja AT castroliliananorma vanadiniferousmicaceousconcretionsinthepatquiaformationpermiansierrademazprovinceoflarioja
_version_	1768545444205428736

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

Ejemplares similares