The Mazarrón basin, SE Spain: a study of mineralization processes, evolving magmatic series, and geothermal activity

The Miocene to Present Mazarrón basin provides a window on the metallogenic role of an evolving magmatic series. High-K calc–alkaline magmas gave rise to an important cluster of Pb–Zn–Ag–Cu vein and stockwork deposits emplaced in dacitic to rhyodacitic domes, part of a complex volcanic–metallogenic...

Descripción completa

Detalles Bibliográficos
Autores: Crespo Feo, María Elena, Lillo Ramos, F. Javier, Oyarzun Muñoz, Roberto, Cubas, Paloma
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/34561
Acceso en línea:https://hdl.handle.net/20.500.14352/34561
Access Level:acceso abierto
Palabra clave:553.061.2(460.33)"628.42/..."
551.21(234.1)
Mazarrón basin
SE Spain
Base metal deposits
High-K calc–alkaline aqueous fluids
Barren intraplate alkaline magmatism
CO2 degasification
Geothermal activity
Mineralogía (Geología)
Botánica (Farmacia)
Edafología (Farmacia)
2506.11 Mineralogía
id ES_ebfa3dc49d7575fe369d88a9ade6d0a2
oai_identifier_str oai:docta.ucm.es:20.500.14352/34561
network_acronym_str ES
network_name_str España
repository_id_str
spelling The Mazarrón basin, SE Spain: a study of mineralization processes, evolving magmatic series, and geothermal activityCrespo Feo, María ElenaLillo Ramos, F. JavierOyarzun Muñoz, RobertoCubas, Paloma553.061.2(460.33)"628.42/..."551.21(234.1)Mazarrón basinSE SpainBase metal depositsHigh-K calc–alkaline aqueous fluidsBarren intraplate alkaline magmatismCO2 degasificationGeothermal activityMineralogía (Geología)Botánica (Farmacia)Edafología (Farmacia)2506.11 MineralogíaThe Miocene to Present Mazarrón basin provides a window on the metallogenic role of an evolving magmatic series. High-K calc–alkaline magmas gave rise to an important cluster of Pb–Zn–Ag–Cu vein and stockwork deposits emplaced in dacitic to rhyodacitic domes, part of a complex volcanic–metallogenic province (Au, Hg, Pb–Zn–Cu–Ag, Sn) stretching for ∼150 km along the Mediterranean coast of SE Spain. By Pliocene time the former magmatic series had been replaced by intraplate alkaline basaltic volcanism, thus becoming the southern branch of the Western/Central Europe alkaline province. In terms of base metal sulphide deposits, this European province is barren, although it triggered widespread, CO2-rich geothermal activity. Modern geothermal activity at El Saladillo (Mazarrón) resulted in the deposition of carbonate sinter deposits and formation of microbial mats. Proximal facies consist of millimetric to centimetric multicoloured layers of microbial mats, including yellow-orange thin bands of calcified bacteria and mineral growths of aragonite and calcite; green layers of live thermophilic Lyngbya-type cyanobacteria; black, degraded organic matter; and pyrite as the sole sulphide phase. Except for arsenic (37–63 μg g−1), all of the studied trace elements (Ag, Ba, Bi, Cd, Cu, Pb, Sb, Se, and Sn) appear in remarkably low concentrations in the geothermal sinters. This is consistent with compositional data for the El Saladillo waters, with no significant metal concentrations. We present the first conceptual model (Miocene to Present) for the ore-forming processes, magmatism, CO2 degasification, and geothermal activity for this realm. We argue that the time- and space-limited character of this volcanism (small, scattered outcrops), the deep magma emplacement level, the metal sulphide behaviour in alkaline basaltic magmatic chambers, and the dry character of these magmas prevented any metallogenic interaction between the chambers and the much shallower meteoric waters that drove the El Saladillo geothermal system and others of the same kind in Spain and elsewhere in Europe.Taylor & FrancisUniversidad Complutense de Madrid20132013-06-2120132013-06-21journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/34561reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/345612026-06-02T12:44:21Z
dc.title.none.fl_str_mv The Mazarrón basin, SE Spain: a study of mineralization processes, evolving magmatic series, and geothermal activity
title The Mazarrón basin, SE Spain: a study of mineralization processes, evolving magmatic series, and geothermal activity
spellingShingle The Mazarrón basin, SE Spain: a study of mineralization processes, evolving magmatic series, and geothermal activity
Crespo Feo, María Elena
553.061.2(460.33)"628.42/..."
551.21(234.1)
Mazarrón basin
SE Spain
Base metal deposits
High-K calc–alkaline aqueous fluids
Barren intraplate alkaline magmatism
CO2 degasification
Geothermal activity
Mineralogía (Geología)
Botánica (Farmacia)
Edafología (Farmacia)
2506.11 Mineralogía
title_short The Mazarrón basin, SE Spain: a study of mineralization processes, evolving magmatic series, and geothermal activity
title_full The Mazarrón basin, SE Spain: a study of mineralization processes, evolving magmatic series, and geothermal activity
title_fullStr The Mazarrón basin, SE Spain: a study of mineralization processes, evolving magmatic series, and geothermal activity
title_full_unstemmed The Mazarrón basin, SE Spain: a study of mineralization processes, evolving magmatic series, and geothermal activity
title_sort The Mazarrón basin, SE Spain: a study of mineralization processes, evolving magmatic series, and geothermal activity
dc.creator.none.fl_str_mv Crespo Feo, María Elena
Lillo Ramos, F. Javier
Oyarzun Muñoz, Roberto
Cubas, Paloma
author Crespo Feo, María Elena
author_facet Crespo Feo, María Elena
Lillo Ramos, F. Javier
Oyarzun Muñoz, Roberto
Cubas, Paloma
author_role author
author2 Lillo Ramos, F. Javier
Oyarzun Muñoz, Roberto
Cubas, Paloma
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 553.061.2(460.33)"628.42/..."
551.21(234.1)
Mazarrón basin
SE Spain
Base metal deposits
High-K calc–alkaline aqueous fluids
Barren intraplate alkaline magmatism
CO2 degasification
Geothermal activity
Mineralogía (Geología)
Botánica (Farmacia)
Edafología (Farmacia)
2506.11 Mineralogía
topic 553.061.2(460.33)"628.42/..."
551.21(234.1)
Mazarrón basin
SE Spain
Base metal deposits
High-K calc–alkaline aqueous fluids
Barren intraplate alkaline magmatism
CO2 degasification
Geothermal activity
Mineralogía (Geología)
Botánica (Farmacia)
Edafología (Farmacia)
2506.11 Mineralogía
description The Miocene to Present Mazarrón basin provides a window on the metallogenic role of an evolving magmatic series. High-K calc–alkaline magmas gave rise to an important cluster of Pb–Zn–Ag–Cu vein and stockwork deposits emplaced in dacitic to rhyodacitic domes, part of a complex volcanic–metallogenic province (Au, Hg, Pb–Zn–Cu–Ag, Sn) stretching for ∼150 km along the Mediterranean coast of SE Spain. By Pliocene time the former magmatic series had been replaced by intraplate alkaline basaltic volcanism, thus becoming the southern branch of the Western/Central Europe alkaline province. In terms of base metal sulphide deposits, this European province is barren, although it triggered widespread, CO2-rich geothermal activity. Modern geothermal activity at El Saladillo (Mazarrón) resulted in the deposition of carbonate sinter deposits and formation of microbial mats. Proximal facies consist of millimetric to centimetric multicoloured layers of microbial mats, including yellow-orange thin bands of calcified bacteria and mineral growths of aragonite and calcite; green layers of live thermophilic Lyngbya-type cyanobacteria; black, degraded organic matter; and pyrite as the sole sulphide phase. Except for arsenic (37–63 μg g−1), all of the studied trace elements (Ag, Ba, Bi, Cd, Cu, Pb, Sb, Se, and Sn) appear in remarkably low concentrations in the geothermal sinters. This is consistent with compositional data for the El Saladillo waters, with no significant metal concentrations. We present the first conceptual model (Miocene to Present) for the ore-forming processes, magmatism, CO2 degasification, and geothermal activity for this realm. We argue that the time- and space-limited character of this volcanism (small, scattered outcrops), the deep magma emplacement level, the metal sulphide behaviour in alkaline basaltic magmatic chambers, and the dry character of these magmas prevented any metallogenic interaction between the chambers and the much shallower meteoric waters that drove the El Saladillo geothermal system and others of the same kind in Spain and elsewhere in Europe.
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-06-21
2013
2013-06-21
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/34561
url https://hdl.handle.net/20.500.14352/34561
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869423275111612416
score 15,300724

Similares en LA Referencia