The metallogenic evolution of the Greater Antilles

The Greater Antilles host some of the world's most important deposits of bauxite and lateritic nickel as well as significant resources of gold and silver, copper, zinc, manganese, cobalt and chromium. Beginning in Jurassic time, sedimentary exhalative base metal deposits accumulated in marine s...

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Autores: Nelson, Carl E., Proenza Fernández, Joaquín Antonio, Lewis, J. F., López-Kramer, J.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/108999
Acesso em linha:https://hdl.handle.net/2445/108999
Access Level:acceso abierto
Palavra-chave:Metal·logènia
Tectònica
Antilles
Metallogeny
Tectonics
West Indies
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spelling The metallogenic evolution of the Greater AntillesNelson, Carl E.Proenza Fernández, Joaquín AntonioLewis, J. F.López-Kramer, J.Metal·logèniaTectònicaAntillesMetallogenyTectonicsWest IndiesThe Greater Antilles host some of the world's most important deposits of bauxite and lateritic nickel as well as significant resources of gold and silver, copper, zinc, manganese, cobalt and chromium. Beginning in Jurassic time, sedimentary exhalative base metal deposits accumulated in marine sedimentary rift basins as North and South America drifted apart. With the onset of intraoceanic subduction during the Early Cretaceous, a primitive (tholeiitic) island arc formed above a southwesterly-dipping subduction zone. Podiform chromite deposits formed in the mantle portion of the supra-subduction zone, directly above subducted Proto-Caribbean oceanic lithosphere. Within the nascent island arc, bimodal-mafic volcanogenic massive sulfide deposits formed in a fore-arc setting; mafic volcanogenic massive sulfide deposits formed later in mature back-arc basins. The Pueblo Viejo gold district, with five million ounces in production and twenty million ounces in mineable reserves, formed at 108-112Ma, in an apical rift or back-arc setting. By Late Cretaceous time, calc-alkaline volcanism was well established along the entire length of the Greater Antilles. Volcanogenic massive sulfide deposits including shallow submarine deposits characteristic of the primitive island arc gave way to porphyry copper and epithermal precious metal deposits typical of the mature island arc. Oblique collision of the Greater Antilles with North America began in the Late Cretaceous in Cuba and migrated eastward. Orogenic gold and tungsten deposits that formed during the collision event are preserved in ophiolites and in metamorphic core complexes. Since the Eocene, regional tectonism has been dominated by strike-slip motion as the North American continent moved westward relative to the Caribbean Plate. Large nickel-cobalt laterite deposits were formed when serpentinites were exposed to weathering and erosion during the mid-Tertiary. Bauxite deposits were derived from the weathering of volcanic ash within a carbonate platform of Eocene to Miocene age(UB). (ICTJA). (IDEA). (UAB). (CSIC)2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/108999Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1344/105.000001741Geologica Acta, 2011, vol. 9, num. 3-4, p. 229-264https://doi.org/10.1344/105.000001741cc-by-sa (c) Nelson, C. et al., 2011http://creativecommons.org/licenses/by-sa/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1089992026-05-27T06:46:51Z
dc.title.none.fl_str_mv The metallogenic evolution of the Greater Antilles
title The metallogenic evolution of the Greater Antilles
spellingShingle The metallogenic evolution of the Greater Antilles
Nelson, Carl E.
Metal·logènia
Tectònica
Antilles
Metallogeny
Tectonics
West Indies
title_short The metallogenic evolution of the Greater Antilles
title_full The metallogenic evolution of the Greater Antilles
title_fullStr The metallogenic evolution of the Greater Antilles
title_full_unstemmed The metallogenic evolution of the Greater Antilles
title_sort The metallogenic evolution of the Greater Antilles
dc.creator.none.fl_str_mv Nelson, Carl E.
Proenza Fernández, Joaquín Antonio
Lewis, J. F.
López-Kramer, J.
author Nelson, Carl E.
author_facet Nelson, Carl E.
Proenza Fernández, Joaquín Antonio
Lewis, J. F.
López-Kramer, J.
author_role author
author2 Proenza Fernández, Joaquín Antonio
Lewis, J. F.
López-Kramer, J.
author2_role author
author
author
dc.subject.none.fl_str_mv Metal·logènia
Tectònica
Antilles
Metallogeny
Tectonics
West Indies
topic Metal·logènia
Tectònica
Antilles
Metallogeny
Tectonics
West Indies
description The Greater Antilles host some of the world's most important deposits of bauxite and lateritic nickel as well as significant resources of gold and silver, copper, zinc, manganese, cobalt and chromium. Beginning in Jurassic time, sedimentary exhalative base metal deposits accumulated in marine sedimentary rift basins as North and South America drifted apart. With the onset of intraoceanic subduction during the Early Cretaceous, a primitive (tholeiitic) island arc formed above a southwesterly-dipping subduction zone. Podiform chromite deposits formed in the mantle portion of the supra-subduction zone, directly above subducted Proto-Caribbean oceanic lithosphere. Within the nascent island arc, bimodal-mafic volcanogenic massive sulfide deposits formed in a fore-arc setting; mafic volcanogenic massive sulfide deposits formed later in mature back-arc basins. The Pueblo Viejo gold district, with five million ounces in production and twenty million ounces in mineable reserves, formed at 108-112Ma, in an apical rift or back-arc setting. By Late Cretaceous time, calc-alkaline volcanism was well established along the entire length of the Greater Antilles. Volcanogenic massive sulfide deposits including shallow submarine deposits characteristic of the primitive island arc gave way to porphyry copper and epithermal precious metal deposits typical of the mature island arc. Oblique collision of the Greater Antilles with North America began in the Late Cretaceous in Cuba and migrated eastward. Orogenic gold and tungsten deposits that formed during the collision event are preserved in ophiolites and in metamorphic core complexes. Since the Eocene, regional tectonism has been dominated by strike-slip motion as the North American continent moved westward relative to the Caribbean Plate. Large nickel-cobalt laterite deposits were formed when serpentinites were exposed to weathering and erosion during the mid-Tertiary. Bauxite deposits were derived from the weathering of volcanic ash within a carbonate platform of Eocene to Miocene age
publishDate 2011
dc.date.none.fl_str_mv 2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/108999
url https://hdl.handle.net/2445/108999
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1344/105.000001741
Geologica Acta, 2011, vol. 9, num. 3-4, p. 229-264
https://doi.org/10.1344/105.000001741
dc.rights.none.fl_str_mv cc-by-sa (c) Nelson, C. et al., 2011
http://creativecommons.org/licenses/by-sa/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-sa (c) Nelson, C. et al., 2011
http://creativecommons.org/licenses/by-sa/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv (UB). (ICTJA). (IDEA). (UAB). (CSIC)
publisher.none.fl_str_mv (UB). (ICTJA). (IDEA). (UAB). (CSIC)
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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