Mineral resource estimation for a gold placer type deposit in Cordón Baquedano mining district, Tierra del Fuego, Chile (54°S)

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dc.catalogadorpau
dc.contributor.advisorMarquardt R., Carlos
dc.contributor.advisorJara Donoso, José Joaquín
dc.contributor.authorSerra Silva, Juan de Dios
dc.contributor.otherPontificia Universidad Católica de Chile. Escuela de Ingeniería
dc.date2025-12-31
dc.date.accessioned2024-06-04T20:02:08Z
dc.date.available2024-06-04T20:02:08Z
dc.date.issued2024
dc.descriptionTesis (Master of Science in Engineering)--Pontificia Universidad Católica de Chile, 2024.
dc.description.abstractGold placers are a type of ore deposit whose genesis is related to different superficial processes, having variable characteristics and complex mechanisms of mineral concentrations. These deposits are often exploited by medium to small scale miners, where work is carried out with high geological uncertainty or without proper geological characterization. This represents a difficulty for mineral resource estimation; therefore, usually more simple geometric methods are employed. In Chile, the Cordón Baquedano Gold Mining District, located in the northern part of the Tierra del Fuego Island, has been a source of detrital gold of fluvial to alluvial origin for over a century, characterized by mostly small-scale mining. Some attempts of medium to large, industrialized mining have been made in the 1900's and 1980´s without success. Furthermore, the existing metallogenic models are over 30 years old, and do not represent the complexity of some of the deposits found in the district. For this reason, studying if a robust resource model can be built using detailed surface geological mapping and exploration pits with an updated metallogenic model is of interest. This research follows the common practices for mineral inventory estimation to create a resource model for the Mina Nueva Deposit, locating at the Cordón Baquedano Gold Mining District, using exploration pits data in a sparse regular grid. Mineralization and resource models are suggested using traditional and geostatistical methods. The results of this study indicate that the gold content in Mina Nueva Deposit varies from 8,070 to 10,730 troy ounces (tOz) using newly acquired dataset, and from 16,720 to 18,280 tOz for a database incorporating new and historical data. This indicates the high complexity and variability of results when estimating mineral resources within gold placer deposits.
dc.fechaingreso.objetodigitalNo aplica
dc.format.extentx, 69 páginas
dc.fuente.origenSRIA
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/86406
dc.information.autorucEscuela de Ingeniería; Marquardt R., Carlos; 0000-0002-8571-5931; 1012334
dc.information.autorucEscuela de Ingeniería; Jara Donoso, José Joaquín; S/I; 15397
dc.information.autorucEscuela de Ingeniería; Serra Silva, Juan de Dios; S/I; 1064889
dc.language.isoen
dc.nota.accesosin adjunto
dc.rightsacceso abierto
dc.subjectGold Placer Deposits
dc.subjectGeostatistics
dc.subjectResource Estimation
dc.subjectSedimentary Deposits
dc.subjectMagallanes Basin
dc.subjectSouthern Andes
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.titleMineral resource estimation for a gold placer type deposit in Cordón Baquedano mining district, Tierra del Fuego, Chile (54°S)
dc.typetesis de maestría
sipa.codpersvinculados1012334
sipa.codpersvinculados15397
sipa.codpersvinculados1064889
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