Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico)

"Cu-Au skarn deposits of the mining district of Santa María de La Paz are located in the Sierra del Fraile, in the northern part of San Luis Potosí, Mexico. Samples of four different intrusions and their related skarn deposits were taken underground, in order to obtain whole-rock and mineral ge...

Descripción completa

Detalles Bibliográficos
Autores: Siegfried Siesgesmund, RUBEN ALFONSO LOPEZ DONCEL, PASCAL SIECK, Hendrik Wilke, Klaus Wemmer, Dirk Frei, Sebastián Oriolo
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:México
Institución:Instituto Potosino de Investigación Científica y Tecnológica
Repositorio:Repositorio Institucional del IPICYT
OAI Identifier:oai:ipicyt.repositorioinstitucional.mx:1010/2121
Acceso en línea:http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/2121
Access Level:acceso embargado
Palabra clave:info:eu-repo/classification/Autor/Cu-Au mineralization
info:eu-repo/classification/Autor/Ore deposits
info:eu-repo/classification/Autor/Eocene
info:eu-repo/classification/Autor/Post-Laramide magmatism
info:eu-repo/classification/Autor/Re-Os geochronology
info:eu-repo/classification/Autor/Andradite-hedenbergite skarn
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/25
info:eu-repo/classification/cti/2506
id MX_36a7bd008cc2c3a83f8c23e9eb1f1e07
oai_identifier_str oai:ipicyt.repositorioinstitucional.mx:1010/2121
network_acronym_str MX
network_name_str México
repository_id_str
spelling Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico)Siegfried SiesgesmundRUBEN ALFONSO LOPEZ DONCELPASCAL SIECKHendrik WilkeKlaus WemmerDirk FreiSebastián Orioloinfo:eu-repo/classification/Autor/Cu-Au mineralizationinfo:eu-repo/classification/Autor/Ore depositsinfo:eu-repo/classification/Autor/Eoceneinfo:eu-repo/classification/Autor/Post-Laramide magmatisminfo:eu-repo/classification/Autor/Re-Os geochronologyinfo:eu-repo/classification/Autor/Andradite-hedenbergite skarninfo:eu-repo/classification/cti/1info:eu-repo/classification/cti/25info:eu-repo/classification/cti/2506info:eu-repo/classification/cti/2506"Cu-Au skarn deposits of the mining district of Santa María de La Paz are located in the Sierra del Fraile, in the northern part of San Luis Potosí, Mexico. Samples of four different intrusions and their related skarn deposits were taken underground, in order to obtain whole-rock and mineral geochemical data. U-Pb LA-ICP-MS zircon data indicate crystallization ages of ca. 37.6–35.0?Ma for skarn-related granitic and granodioritic stocks, which show dominant metaluminous to slightly peraluminous, high-K calc-alkaline compositions. These intrusions were emplaced in a post-Laramide continental arc setting under shallow conditions, as suggested by fast cooling inferred from K-Ar biotite ages of ca. 35–33?Ma. Skarn deposits were contemporaneous with emplacement and crystallization of stocks, as revealed by Re-Os molybdenite geochronological data of exoskarn rocks. Skarn rocks show a general depletion of LILE and REE and a slightly enrichment in HFSE in comparison with intrusive rocks. Pyroxene and garnet show dominant hedenbergite and andradite compositions, respectively. The association of hedenbergite, pyrite, chalcopyrite, native bismuth and pyrrhotite during skarn mineralization suggest reducing conditions, typical for Au but not for Cu skarns. Highest metal contents are concentrated in exoskarn rocks, including anomalies of Cu, Fe, Ni, Sn, Sb, Zn, W and Bi. Metal contents, ore minerals and environmental conditions of skarn rocks, together with whole-rock geochemical data of stocks and pyroxene-garnet compositions, reveal some singularities for the Sierra del Fraile deposits, as they exhibit characteristics of both Cu and Au skarn deposits but might be also compatible with Fe, W, and Zn skarns. Hence, skarn and associated vein deposits of the Sierra del Fraile might have a high potential not only for Cu-Au, but also for several base metals, as reported for comparable post-Laramide skarn and hydrothermal deposits of central and northern Mexico."Elsevier2018info:eu-repo/date/embargoEnd/2020-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/2121reponame:Repositorio Institucional del IPICYTinstname:Instituto Potosino de Investigación Científica y Tecnológicainstacron:IPICYTinfo:eu-repo/semantics/altIdentifier/DOI/https://doi.org/10.1016/j.oregeorev.2018.02.010citation:Siegfried Siesgesmund, Rubén López-Doncel, Pascal Sieck, Hendrik Wilke, Klaus Wemmer, Dirk Frei, Sebastián Oriolo, Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico), Ore Geology Reviews, Volume 94, 2018, Pages 310-325.info:eu-repo/semantics/embargoedAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0oai:ipicyt.repositorioinstitucional.mx:1010/21212024-08-28T03:17:49Z
dc.title.none.fl_str_mv Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico)
title Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico)
spellingShingle Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico)
Siegfried Siesgesmund
info:eu-repo/classification/Autor/Cu-Au mineralization
info:eu-repo/classification/Autor/Ore deposits
info:eu-repo/classification/Autor/Eocene
info:eu-repo/classification/Autor/Post-Laramide magmatism
info:eu-repo/classification/Autor/Re-Os geochronology
info:eu-repo/classification/Autor/Andradite-hedenbergite skarn
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/25
info:eu-repo/classification/cti/2506
info:eu-repo/classification/cti/2506
title_short Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico)
title_full Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico)
title_fullStr Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico)
title_full_unstemmed Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico)
title_sort Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico)
dc.creator.none.fl_str_mv Siegfried Siesgesmund
RUBEN ALFONSO LOPEZ DONCEL
PASCAL SIECK
Hendrik Wilke
Klaus Wemmer
Dirk Frei
Sebastián Oriolo
author Siegfried Siesgesmund
author_facet Siegfried Siesgesmund
RUBEN ALFONSO LOPEZ DONCEL
PASCAL SIECK
Hendrik Wilke
Klaus Wemmer
Dirk Frei
Sebastián Oriolo
author_role author
author2 RUBEN ALFONSO LOPEZ DONCEL
PASCAL SIECK
Hendrik Wilke
Klaus Wemmer
Dirk Frei
Sebastián Oriolo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv info:eu-repo/classification/Autor/Cu-Au mineralization
info:eu-repo/classification/Autor/Ore deposits
info:eu-repo/classification/Autor/Eocene
info:eu-repo/classification/Autor/Post-Laramide magmatism
info:eu-repo/classification/Autor/Re-Os geochronology
info:eu-repo/classification/Autor/Andradite-hedenbergite skarn
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/25
info:eu-repo/classification/cti/2506
info:eu-repo/classification/cti/2506
topic info:eu-repo/classification/Autor/Cu-Au mineralization
info:eu-repo/classification/Autor/Ore deposits
info:eu-repo/classification/Autor/Eocene
info:eu-repo/classification/Autor/Post-Laramide magmatism
info:eu-repo/classification/Autor/Re-Os geochronology
info:eu-repo/classification/Autor/Andradite-hedenbergite skarn
info:eu-repo/classification/cti/1
info:eu-repo/classification/cti/25
info:eu-repo/classification/cti/2506
info:eu-repo/classification/cti/2506
description "Cu-Au skarn deposits of the mining district of Santa María de La Paz are located in the Sierra del Fraile, in the northern part of San Luis Potosí, Mexico. Samples of four different intrusions and their related skarn deposits were taken underground, in order to obtain whole-rock and mineral geochemical data. U-Pb LA-ICP-MS zircon data indicate crystallization ages of ca. 37.6–35.0?Ma for skarn-related granitic and granodioritic stocks, which show dominant metaluminous to slightly peraluminous, high-K calc-alkaline compositions. These intrusions were emplaced in a post-Laramide continental arc setting under shallow conditions, as suggested by fast cooling inferred from K-Ar biotite ages of ca. 35–33?Ma. Skarn deposits were contemporaneous with emplacement and crystallization of stocks, as revealed by Re-Os molybdenite geochronological data of exoskarn rocks. Skarn rocks show a general depletion of LILE and REE and a slightly enrichment in HFSE in comparison with intrusive rocks. Pyroxene and garnet show dominant hedenbergite and andradite compositions, respectively. The association of hedenbergite, pyrite, chalcopyrite, native bismuth and pyrrhotite during skarn mineralization suggest reducing conditions, typical for Au but not for Cu skarns. Highest metal contents are concentrated in exoskarn rocks, including anomalies of Cu, Fe, Ni, Sn, Sb, Zn, W and Bi. Metal contents, ore minerals and environmental conditions of skarn rocks, together with whole-rock geochemical data of stocks and pyroxene-garnet compositions, reveal some singularities for the Sierra del Fraile deposits, as they exhibit characteristics of both Cu and Au skarn deposits but might be also compatible with Fe, W, and Zn skarns. Hence, skarn and associated vein deposits of the Sierra del Fraile might have a high potential not only for Cu-Au, but also for several base metals, as reported for comparable post-Laramide skarn and hydrothermal deposits of central and northern Mexico."
publishDate 2018
dc.date.none.fl_str_mv 2018
info:eu-repo/date/embargoEnd/2020-03-31
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/2121
url http://ipicyt.repositorioinstitucional.mx/jspui/handle/1010/2121
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/DOI/https://doi.org/10.1016/j.oregeorev.2018.02.010
citation:Siegfried Siesgesmund, Rubén López-Doncel, Pascal Sieck, Hendrik Wilke, Klaus Wemmer, Dirk Frei, Sebastián Oriolo, Geochronological and geochemical constraints on the genesis of Cu-Au skarn deposits of the Santa María de la Paz district (Sierra del Fraile, Mexico), Ore Geology Reviews, Volume 94, 2018, Pages 310-325.
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
http://creativecommons.org/licenses/by-nc-nd/4.0
eu_rights_str_mv embargoedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositorio Institucional del IPICYT
instname:Instituto Potosino de Investigación Científica y Tecnológica
instacron:IPICYT
instname_str Instituto Potosino de Investigación Científica y Tecnológica
instacron_str IPICYT
institution IPICYT
reponame_str Repositorio Institucional del IPICYT
collection Repositorio Institucional del IPICYT
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1858174904490262528
score 15.812455

Similares en LA Referencia