Age, Sr and Nd-Isotope Systematics, and Origin of Two Fluorite Lodes, Sierras Pampeanas, Argentina

Fluorite mineralization at the La Nueva and Bubu mines yields Sm-Nd ages of 131 ± 22 and 117 ± 26 Ma, respectively. Thus, the mineralization most probably is related to a late Gondwanian (Lower Cretaceous) extensional and magmatic event that affected the Sierras Pampeanas basement during the opening...

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Detalles Bibliográficos
Autores principales: Galindo, Carmen, Pankhurst, Robert J., Casquet, César, Coniglio, Jorge E., Baldo, Edgardo, Rapela, Carlos Washington, Saavedra, Julio
Formato: Articulo
Lenguaje:Inglés
Publicado: 1997
Materias:
Ciencias Naturales
Cretaceous
Geology
Extensional definition
Hydrothermal circulation
Mineralization (geology)
Isotope
Geochemistry
Fluorite
Porphyritic
Systematics
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123134
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123134
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Cretaceous
Geology
Extensional definition
Hydrothermal circulation
Mineralization (geology)
Isotope
Geochemistry
Fluorite
Porphyritic
Systematics
spellingShingle Ciencias Naturales
Cretaceous
Geology
Extensional definition
Hydrothermal circulation
Mineralization (geology)
Isotope
Geochemistry
Fluorite
Porphyritic
Systematics
Galindo, Carmen
Pankhurst, Robert J.
Casquet, César
Coniglio, Jorge E.
Baldo, Edgardo
Rapela, Carlos Washington
Saavedra, Julio
Age, Sr and Nd-Isotope Systematics, and Origin of Two Fluorite Lodes, Sierras Pampeanas, Argentina
topic_facet Ciencias Naturales
Cretaceous
Geology
Extensional definition
Hydrothermal circulation
Mineralization (geology)
Isotope
Geochemistry
Fluorite
Porphyritic
Systematics
description Fluorite mineralization at the La Nueva and Bubu mines yields Sm-Nd ages of 131 ± 22 and 117 ± 26 Ma, respectively. Thus, the mineralization most probably is related to a late Gondwanian (Lower Cretaceous) extensional and magmatic event that affected the Sierras Pampeanas basement during the opening of the Atlantic Ocean. Hydrothermal fluids involved in the formation of the fluorite probably were of meteoric origin, their isotopic composition (Sr and Nd) resulting largely from the incongruent dissolution of feldspars in the host porphyritic granites.
format Articulo
Articulo
author Galindo, Carmen
Pankhurst, Robert J.
Casquet, César
Coniglio, Jorge E.
Baldo, Edgardo
Rapela, Carlos Washington
Saavedra, Julio
author_facet Galindo, Carmen
Pankhurst, Robert J.
Casquet, César
Coniglio, Jorge E.
Baldo, Edgardo
Rapela, Carlos Washington
Saavedra, Julio
author_sort Galindo, Carmen
title Age, Sr and Nd-Isotope Systematics, and Origin of Two Fluorite Lodes, Sierras Pampeanas, Argentina
title_short Age, Sr and Nd-Isotope Systematics, and Origin of Two Fluorite Lodes, Sierras Pampeanas, Argentina
title_full Age, Sr and Nd-Isotope Systematics, and Origin of Two Fluorite Lodes, Sierras Pampeanas, Argentina
title_fullStr Age, Sr and Nd-Isotope Systematics, and Origin of Two Fluorite Lodes, Sierras Pampeanas, Argentina
title_full_unstemmed Age, Sr and Nd-Isotope Systematics, and Origin of Two Fluorite Lodes, Sierras Pampeanas, Argentina
title_sort age, sr and nd-isotope systematics, and origin of two fluorite lodes, sierras pampeanas, argentina
publishDate 1997
url http://sedici.unlp.edu.ar/handle/10915/123134
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