Petrographic and litho-geochemical characterization of the VMS deposit at El Roble mine, Colombian Western Cordillera

El Roble Mine (Cu-Au) siliciclastic-mafic volcanogenic massive sulfide (VMS) deposit, is located at El Carmen de Atrato, Chocó, Colombian Western Cordillera. This 4-million-ton VMS occurs replacing black chert rocks between Upper Cretaceous volcanic Barroso Formation and Upper Cretaceous Urrao membe...

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Autores:
Murillo Bedoya, José Manuel
Tipo de recurso:
Fecha de publicación:
2020
Institución:
Universidad EAFIT
Repositorio:
Repositorio EAFIT
Idioma:
spa
OAI Identifier:
oai:repository.eafit.edu.co:10784/24651
Acceso en línea:
http://hdl.handle.net/10784/24651
Palabra clave:
VMS
Petrografía
GEOQUÍMICA
MINAS
PETROLOGÍA
SULFUROS
ROCAS IGNEAS
Deposit
Western Cordillera
El Roble
Exploration
Mining
Rights
License
Todos los derechos reservados
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spelling Marín Cerón, María IsabelEcheverri Franco, BalmerMurillo Bedoya, José ManuelGeólogoAtico Mining Corporationjmuril16@eafit.edu.coMedellín de: Lat: 06 15 00 N degrees minutes Lat: 6.2500 decimal degrees Long: 075 36 00 W degrees minutes Long: -75.6000 decimal degrees2020-12-04T21:42:59Z20202020-12-04T21:42:59Zhttp://hdl.handle.net/10784/24651551.2 M977El Roble Mine (Cu-Au) siliciclastic-mafic volcanogenic massive sulfide (VMS) deposit, is located at El Carmen de Atrato, Chocó, Colombian Western Cordillera. This 4-million-ton VMS occurs replacing black chert rocks between Upper Cretaceous volcanic Barroso Formation and Upper Cretaceous Urrao member of Penderisco Formation. Major, trace and REE elements, indicate that there are at least two different mantle sources (E-MORB and N-MORB) from the volcanic Barroso Formation(?). Then the close relation between black chert unit and E-MORB related basalts may have leaded the VMS mineralization. The 2D geochemical vector modelling from drill-cores around “Zeus” ore body shows positive correlated anomalies for the AI (Alteration Index), CCPI (Chlorite Carbonate Pyrite Index), Tl and MgO with the presence of hyaloclastites, becoming important exploration vectors for the VMS at the North Volcanic Zone of the Andean Cordillera. Nevertheless, the Na2O negative anomaly close to the ore body, is not conclusive in such type of VMS due to overprinted hydrothermal alteration closely related to the Cenozoic arc environment.spaUniversidad EafitGeologíaEscuela de Ciencias. Departamento de GeologíaMedellínTodos los derechos reservadosAcceso abiertohttp://purl.org/coar/access_right/c_abf2VMSPetrografíaGEOQUÍMICAMINASPETROLOGÍASULFUROSROCAS IGNEASDepositWestern CordilleraEl RobleExplorationMiningPetrographic and litho-geochemical characterization of the VMS deposit at El Roble mine, Colombian Western Cordillerainfo:eu-repo/semantics/bachelorThesisbachelorThesisTrabajo de gradoacceptedVersionhttp://purl.org/coar/resource_type/c_7a1fLICENSElicense.txtlicense.txttext/plain; charset=utf-82556https://repository.eafit.edu.co/bitstreams/526ae1c2-cb19-4e08-a9c9-f59e418a222c/download76025f86b095439b7ac65b367055d40cMD51ORIGINALMurillo J.M 2020.pdfMurillo J.M 2020.pdfTrabajo de gradoapplication/pdf4419372https://repository.eafit.edu.co/bitstreams/100867ab-7fc2-4eaa-896a-919935fe3e91/downloadb1c6f94e932fab2192120b2bdb3224bbMD52carta_aprobacion_trabajo_grado_eafit.pdfcarta_aprobacion_trabajo_grado_eafit.pdfCarta de aprobación de tesis de gradoapplication/pdf99924https://repository.eafit.edu.co/bitstreams/0f1c4200-267f-45a5-bfc6-c9ae3a1e387c/downloade48af47bc51ef24a883773ec4df3c57dMD53formulario_autorizacion_publicacion_obras.pdfformulario_autorizacion_publicacion_obras.pdfFormulario de autorización de publicación de obrasapplication/pdf705870https://repository.eafit.edu.co/bitstreams/97cbb89a-4cec-4313-80e3-d7e4d417f862/download4f92ac631ca5b08040a3301041be73f8MD5410784/24651oai:repository.eafit.edu.co:10784/246512020-12-04 16:42:59.897open.accesshttps://repository.eafit.edu.coRepositorio Institucional Universidad EAFITrepositorio@eafit.edu.co
dc.title.spa.fl_str_mv Petrographic and litho-geochemical characterization of the VMS deposit at El Roble mine, Colombian Western Cordillera
title Petrographic and litho-geochemical characterization of the VMS deposit at El Roble mine, Colombian Western Cordillera
spellingShingle Petrographic and litho-geochemical characterization of the VMS deposit at El Roble mine, Colombian Western Cordillera
VMS
Petrografía
GEOQUÍMICA
MINAS
PETROLOGÍA
SULFUROS
ROCAS IGNEAS
Deposit
Western Cordillera
El Roble
Exploration
Mining
title_short Petrographic and litho-geochemical characterization of the VMS deposit at El Roble mine, Colombian Western Cordillera
title_full Petrographic and litho-geochemical characterization of the VMS deposit at El Roble mine, Colombian Western Cordillera
title_fullStr Petrographic and litho-geochemical characterization of the VMS deposit at El Roble mine, Colombian Western Cordillera
title_full_unstemmed Petrographic and litho-geochemical characterization of the VMS deposit at El Roble mine, Colombian Western Cordillera
title_sort Petrographic and litho-geochemical characterization of the VMS deposit at El Roble mine, Colombian Western Cordillera
dc.creator.fl_str_mv Murillo Bedoya, José Manuel
dc.contributor.advisor.spa.fl_str_mv Marín Cerón, María Isabel
Echeverri Franco, Balmer
dc.contributor.author.none.fl_str_mv Murillo Bedoya, José Manuel
dc.subject.spa.fl_str_mv VMS
Petrografía
topic VMS
Petrografía
GEOQUÍMICA
MINAS
PETROLOGÍA
SULFUROS
ROCAS IGNEAS
Deposit
Western Cordillera
El Roble
Exploration
Mining
dc.subject.lemb.spa.fl_str_mv GEOQUÍMICA
MINAS
PETROLOGÍA
SULFUROS
ROCAS IGNEAS
dc.subject.keyword.spa.fl_str_mv Deposit
Western Cordillera
El Roble
Exploration
Mining
description El Roble Mine (Cu-Au) siliciclastic-mafic volcanogenic massive sulfide (VMS) deposit, is located at El Carmen de Atrato, Chocó, Colombian Western Cordillera. This 4-million-ton VMS occurs replacing black chert rocks between Upper Cretaceous volcanic Barroso Formation and Upper Cretaceous Urrao member of Penderisco Formation. Major, trace and REE elements, indicate that there are at least two different mantle sources (E-MORB and N-MORB) from the volcanic Barroso Formation(?). Then the close relation between black chert unit and E-MORB related basalts may have leaded the VMS mineralization. The 2D geochemical vector modelling from drill-cores around “Zeus” ore body shows positive correlated anomalies for the AI (Alteration Index), CCPI (Chlorite Carbonate Pyrite Index), Tl and MgO with the presence of hyaloclastites, becoming important exploration vectors for the VMS at the North Volcanic Zone of the Andean Cordillera. Nevertheless, the Na2O negative anomaly close to the ore body, is not conclusive in such type of VMS due to overprinted hydrothermal alteration closely related to the Cenozoic arc environment.
publishDate 2020
dc.date.available.none.fl_str_mv 2020-12-04T21:42:59Z
dc.date.issued.none.fl_str_mv 2020
dc.date.accessioned.none.fl_str_mv 2020-12-04T21:42:59Z
dc.type.none.fl_str_mv info:eu-repo/semantics/bachelorThesis
dc.type.eng.fl_str_mv bachelorThesis
dc.type.coar.fl_str_mv http://purl.org/coar/resource_type/c_7a1f
dc.type.local.spa.fl_str_mv Trabajo de grado
dc.type.hasVersion.eng.fl_str_mv acceptedVersion
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/10784/24651
dc.identifier.ddc.none.fl_str_mv 551.2 M977
url http://hdl.handle.net/10784/24651
identifier_str_mv 551.2 M977
dc.language.iso.spa.fl_str_mv spa
language spa
dc.rights.spa.fl_str_mv Todos los derechos reservados
dc.rights.coar.fl_str_mv http://purl.org/coar/access_right/c_abf2
dc.rights.local.spa.fl_str_mv Acceso abierto
rights_invalid_str_mv Todos los derechos reservados
Acceso abierto
http://purl.org/coar/access_right/c_abf2
dc.coverage.spatial.none.fl_str_mv Medellín de: Lat: 06 15 00 N degrees minutes Lat: 6.2500 decimal degrees Long: 075 36 00 W degrees minutes Long: -75.6000 decimal degrees
dc.publisher.spa.fl_str_mv Universidad Eafit
dc.publisher.program.spa.fl_str_mv Geología
dc.publisher.department.spa.fl_str_mv Escuela de Ciencias. Departamento de Geología
dc.publisher.place.spa.fl_str_mv Medellín
institution Universidad EAFIT
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