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

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dc.contributor.advisorMarín Cerón, María Isabelspa
dc.contributor.advisorEcheverri Franco, Balmerspa
dc.contributor.authorMurillo Bedoya, José Manuel
dc.coverage.spatialMedellín 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.creator.degreeGeólogospa
dc.creator.emailjmuril16@eafit.edu.cospa
dc.creator.grantorAtico Mining Corporationspa
dc.date.accessioned2020-12-04T21:42:59Z
dc.date.available2020-12-04T21:42:59Z
dc.date.issued2020
dc.description.abstractEl 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.spa
dc.identifier.ddc551.2 M977
dc.identifier.urihttp://hdl.handle.net/10784/24651
dc.language.isospaspa
dc.publisherUniversidad Eafitspa
dc.publisher.departmentEscuela de Ciencias. Departamento de Geologíaspa
dc.publisher.placeMedellínspa
dc.publisher.programGeologíaspa
dc.rightsTodos los derechos reservadosspa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.localAcceso abiertospa
dc.subjectVMSspa
dc.subjectPetrografíaspa
dc.subject.keywordDepositspa
dc.subject.keywordWestern Cordilleraspa
dc.subject.keywordEl Roblespa
dc.subject.keywordExplorationspa
dc.subject.keywordMiningspa
dc.subject.lembGEOQUÍMICAspa
dc.subject.lembMINASspa
dc.subject.lembPETROLOGÍAspa
dc.subject.lembSULFUROSspa
dc.subject.lembROCAS IGNEASspa
dc.titlePetrographic and litho-geochemical characterization of the VMS deposit at El Roble mine, Colombian Western Cordilleraspa
dc.typeinfo:eu-repo/semantics/bachelorThesis
dc.typebachelorThesiseng
dc.type.hasVersionacceptedVersioneng
dc.type.localTrabajo de gradospa

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