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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Detalles Bibliográficos
Autores: Nelson, C. E., Proenza, J. A., Lewis, J. F., López-Kramer, J.
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:89000
Acceso en línea:https://ddd.uab.cat/record/89000
https://dx.doi.org/urn:doi:10.1344/105.000001741
Access Level:acceso abierto
Palabra clave:Caribbean
Metallogeny
Mineral deposit
Tectonic evolution
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spelling The metallogenic evolution of the Greater AntillesNelson, C. E.Proenza, J. A.Lewis, J. F.López-Kramer, J.CaribbeanMetallogenyMineral depositTectonic evolutionThe 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. 22011-01-0120112011-01-01Articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/89000https://dx.doi.org/urn:doi:10.1344/105.000001741reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria.https://creativecommons.org/licenses/by-sa/3.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:890002026-06-06T12:50:31Z
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, C. E.
Caribbean
Metallogeny
Mineral deposit
Tectonic evolution
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, C. E.
Proenza, J. A.
Lewis, J. F.
López-Kramer, J.
author Nelson, C. E.
author_facet Nelson, C. E.
Proenza, J. A.
Lewis, J. F.
López-Kramer, J.
author_role author
author2 Proenza, J. A.
Lewis, J. F.
López-Kramer, J.
author2_role author
author
author
dc.subject.none.fl_str_mv Caribbean
Metallogeny
Mineral deposit
Tectonic evolution
topic Caribbean
Metallogeny
Mineral deposit
Tectonic evolution
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 2
2011-01-01
2011
2011-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
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https://dx.doi.org/urn:doi:10.1344/105.000001741
url https://ddd.uab.cat/record/89000
https://dx.doi.org/urn:doi:10.1344/105.000001741
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
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dc.rights.none.fl_str_mv open access
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