Jurassic magmatism and Au-Ag mineralization in the Deseado Massif (Patagonia Argentina) : Lead and sulfur isotopic studies

Lead isotope analyses of volcanic rocks and hydrothermal minerals and sulfide isotope analyses of sulfurs from Au-Ag La Josefina prospect (Deseado Massif geological province, Argentina) are reported. Lead isotope ratios for sphalerite and pyrite have mean values of 18.48, 15.69 and 38.61 for 206Pb/2...

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Autores principales: Moreira, Pilar, Fernández, Raúl Roberto, Schalamuk, Isidoro Bernardo Abel, Etcheverry, Ricardo Oscar, Rolando, Ariel Pablo
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2005
Materias:
Geología
Pb isotopes
S isotopes
epithermal deposits
Jurassic volcanism
Patagonia Argentina
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/140392
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-140392
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geología
Pb isotopes
S isotopes
epithermal deposits
Jurassic volcanism
Patagonia Argentina
spellingShingle Geología
Pb isotopes
S isotopes
epithermal deposits
Jurassic volcanism
Patagonia Argentina
Moreira, Pilar
Fernández, Raúl Roberto
Schalamuk, Isidoro Bernardo Abel
Etcheverry, Ricardo Oscar
Rolando, Ariel Pablo
Jurassic magmatism and Au-Ag mineralization in the Deseado Massif (Patagonia Argentina) : Lead and sulfur isotopic studies
topic_facet Geología
Pb isotopes
S isotopes
epithermal deposits
Jurassic volcanism
Patagonia Argentina
description Lead isotope analyses of volcanic rocks and hydrothermal minerals and sulfide isotope analyses of sulfurs from Au-Ag La Josefina prospect (Deseado Massif geological province, Argentina) are reported. Lead isotope ratios for sphalerite and pyrite have mean values of 18.48, 15.69 and 38.61 for 206Pb/204Pb, 207Pb/204Pb and 208Pb/204Pb, respectively, and are similar to Pb isotope ratios for the Jurassic volcanic rocks of Bajo Pobre and Chon Aike Formations. δ34S‰ suggesting that the sulfur at La Josefina was primarily of magmatic origin. These results are interpreted to indicate that the Jurassic volcanic rocks are closely related with low sulfidation Au-Ag occurrences.
format Objeto de conferencia
Objeto de conferencia
author Moreira, Pilar
Fernández, Raúl Roberto
Schalamuk, Isidoro Bernardo Abel
Etcheverry, Ricardo Oscar
Rolando, Ariel Pablo
author_facet Moreira, Pilar
Fernández, Raúl Roberto
Schalamuk, Isidoro Bernardo Abel
Etcheverry, Ricardo Oscar
Rolando, Ariel Pablo
author_sort Moreira, Pilar
title Jurassic magmatism and Au-Ag mineralization in the Deseado Massif (Patagonia Argentina) : Lead and sulfur isotopic studies
title_short Jurassic magmatism and Au-Ag mineralization in the Deseado Massif (Patagonia Argentina) : Lead and sulfur isotopic studies
title_full Jurassic magmatism and Au-Ag mineralization in the Deseado Massif (Patagonia Argentina) : Lead and sulfur isotopic studies
title_fullStr Jurassic magmatism and Au-Ag mineralization in the Deseado Massif (Patagonia Argentina) : Lead and sulfur isotopic studies
title_full_unstemmed Jurassic magmatism and Au-Ag mineralization in the Deseado Massif (Patagonia Argentina) : Lead and sulfur isotopic studies
title_sort jurassic magmatism and au-ag mineralization in the deseado massif (patagonia argentina) : lead and sulfur isotopic studies
publishDate 2005
url http://sedici.unlp.edu.ar/handle/10915/140392
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