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By Oscar Becerra, Cristhian Tomaduz, Lucas Nunes

Glencore, in collaboration with Cascadia Scientific, conducted a study to improve the haul roads at the Antapaccay mining operation. The study utilized Cascadia's SmartRView platform for data collection, complemented by precise instrumentation installed on both Komatsu and Caterpillar haul trucks Antapaccay worked closely with Cascadia's Data Scientists,employing various statistical methods to analyze the data and identify potential enhancements to the haul road design. The study utilized Cascadia Scientific's heat mapping tool to identify road segments with high fuel intensity . As a result, four main road segments were identified for improvement.

Sep 29, 2023

By Fernando De Llosa

"CEDIMIN desarrolló trabajos de exploración y prospección en los alrededores del yacimiento epitermal denominado Yanacocha para las minas Conga, encontrando dos yacimientos porfiríticos de oro - cobre: Perol y Chailhuagon; siendo el primero de mayor importancia por su volumen y contenido metálico. En este sentido, el presente texto describe los yacimientos porfiríticos de oro-cobre para las minas Congan, donde se desarrollaron técnicas de exploración como la prospección geoquímica de sedimentos fluviales, la localización y definición de anomalías principales de oro, así como la evaluación geológica de los dos prospectos por medio de la exploracióncombinada de geoquímica (suelos y rocas), trincheras, geofísica (IP y Magnetometría) y cartografía geológica de alteraciones hidrotermales y de la mineralización."

Apr 26, 1999

By Enrique Alomia

Actualmente las organizaciones generan grandes cantidades de información que es necesario contar con un sistema diseñado manejable para anticiparse a los problemas que puedan suscitarse. Por ello, se creó un sistema de reportes de producción ((SRP) que provea información confiable y oportuna para la toma de decisiones. En ese sentido, el presente texto señala los beneficios del Sistema de Reportes de Producción (SRP) en el manejo de las organizaciones empresariales, de forma que provee a la Alta Dirección de SPCC, un medio de consulta con información de producción de forma consolidada de las diferentes unidades operativas de SPCC y permite recopilar, clasificar, procesar, interpretar y resumir cantidades de datos que facilitan la toma de decisiones oportunas y eficientes.

Sep 19, 2006

By Henrique Hipolito, Caio Alves

Waelz process is a method applied in the zinc oxide production and is one of the largest sources of carbon emissions within the zinc industry. The solid carbon used for heating and for reduction reactions is provided mainly by the coke fed with the EAFD in the Waelz kiln. Both chemical composition and physical properties of the coke are important to transportation and to the process. Decarbonizing the Waelz process by replacing the traditional fuel source using alternative biogenic fuel, for example, offers a potential solution to reduce the carbon footprint, which is aligned with the ESG perspective.

Sep 29, 2023

By Gabriella Vaschetti, Pascual Perazzo

A paper presented at Perumin 35 in 2022 described the concepts and a state-of-the-art system with extruded curbs and PVC anchor wings, adopted among others at the first four stages of Las Bambas tailings dam in Peru, discussing how upstream geomembrane water barriers can mitigate the numerous issues, including environmental aspects, of tailings dams’ design and operation. This paper, beside presenting a summary of what has been carried out so far at Las Bambas, amplifies the subject, presenting the results by means of the data of the leakage monitoring system, showing that the flow monitoring data at the downstream toe are seasonally consistent, and in alignment with design predictions.

Sep 29, 2023

By Dave Gilbert

The Antamina tailings beach is considered a fundamental design component, as well as a predictive control for phreatic surface control. In this sense, the paper point out the development and purpose of the tailings beach , as well as what future opportunities may exist. These present and future opportunities, include implications of the beach as an evaporative surface control thus reducing pond volume. These desireable outcomes include better control of the phreatic surface in a rockfill dam, and reduction of pond water volume.

Sep 21, 2013

By Jerry Rowe

There are numerous examples of historic and recent mines that have no closure system or have poorly designed closure systems. These mines may contaminate water resources, land resources and cause significant impacts to human health and the environment. As a result of these problems, many regulatory agencies around the world require that mine closure systems be implemented to manage ARD and protect water resources. In this sense, the paper discusses some of the key elements that need to be evaluated when selecting a mine closure system. These include the specific site climatic, hydrogeologic, hydrologic and geochemical conditions that must be considered for closure design. Two examples of innovative mine closure systems that have been implemented to take advantage of site specific conditions to effectively manage water are provided. The mine closure systems incorporate passive measures to control ARD (acid rock drainage) and protect water resources.

Sep 21, 2013

By Luis Adrianzen Lamadrid

La eliminación de la dosificación de cal de un proceso de flotación es difícilmente lograda, si bien algunas empresas han logrado implementar reactivos que ayudan a depender menos de esta, otras empresas en cambio; han logrado no depender de este modificador de pH; pero con resultados poco sostenibles y solo en uno de sus circuitos.

Sep 1, 2017

By Jeremy Dowling

Mine dewatering is needed in most large open pits but the current practice of using in-pit vertcal wells is often chellenging to implement with good results. In order to address these challenges, SWS collaborated with FMI and innovated a directionally placed mine dewatering well workflow, based on well placement technologies from the Oil and Gas industry. The main aims of the program are to: Maximize hydraulic contact between the ore deposit and production dewatering wells and attain enhanced well production rates from the most important fracture sets. Move the well-heads to permanent areas outside of mine operating areas, removing or reducing the need for in-pit wells and allowing for sustained, prolonged pumping runs times.

Oct 21, 2015

By Mario Samamé Boggio

El presente texto describe algunos aspectos de la inversión extranjera en tres períodos: fines del siglo XIX, la primera mitad del siglo XX y segunda mitad del siglo XX. Dentro de lo quince casos analizados se halló que 5 empresas son iguales: Northern, Southem, Santander, Santa Luisa y Madrigal; 4 empresas se han "peruanizado" total o parcialmente: Caylloma, Ticapampa (Alianza), Lampa (Minsur) y Ruaron, 3 empresas se han agotado aparentemente: Santo Domingo, Salinas y Minas Ragra, 1 yacimiento revertió al Estado y fue desarrollado por Minero Perú: Cerro Verde; y 2 empresas fueron expropiadas y estatizadas: Cerro de Pasco Corporation y Marcona. En todos los casos no hubo descubrimiento del yacimiento por el inversionista, quien compró las concesiones y denuncios, con excepción de Marcona que estuvo explorado y desarrollado y fue contratado para su explotación.

Mar 1, 1982

By Michael Valencia

El presente texto señala información sobre la génesis y fuente de mineralización de los depósitos de las tres principales franjas relacionadas con las mineralizaciones de oro, estaño y uranio en la Cordillera Oriental del Sureste Peruano. De las cinco franjas metalogenéticas reconocidas, tres se han considerado de importancia: la franja de oro, estaño y uranio. Asimismo, los depósitos minerales tienen una amplia dispersión de Pb radiogénico de sus fluidos mineralizantes, provenientes principalmente de la corteza superior.

Sep 21, 2013

By Agustín Malpartida

Compañía Minera Poderosa S.A. es una empresa peruana de mediana minería con operaciones subterráneas explora, mina, procesa y comercializa recursos con contenido de oro, a largo de sus 40 años con gran esfuerzo ha logrado posicionarse a nivel nacional . En el periodo 2006 - 2014 las estadísticas de accidentabilidad de la empresa mostraban muy altos valores de frecuencia y severidad. Esta situación trajo como consecuencia la generación de un clima laboral incierto, en cuanto a la seguridad del trabajador. Debido a esto, la alta dirección de PODEROSA tomó la decisión de mejorar considerablemente el desempeño en seguridad, para lo cual decidió contar con un Programa de asesoría y acompañamiento a fin de realizar un proceso estructurado de cambio cultural con la finalidad de impactar la gestión actual de la Seguridad.

Sep 1, 2017

By Eric Nelson

The paper point out the structural openings and the localization of ore bodies. Structural openings in rocks constitute the primary permeability network for the formation of most hydrothermal ore deposits. The distribution, geometry, density, and orientation of ore bodies in structural openings are controlled by two primary factors: the far and near field stresses and the mechanical properties of rock. When stress controls the orientation and kinematics of faults and fractures in the absence of pre-existing weaknesses, ore shoot orientation is perpendicular to the fault slip vector and can be predicted by kinematic analysis. However, when structural openings form along pre-existing weaknesses, ore shoot orientation cannot always be predicted by kinematic analysis. Because we can classify ore bodies based on the types of geological structures discussed above and the variations that naturally occur from material property heterogeneity, exploration for hydrothermal ore deposits should include analysis of geologic structure and evolution, rheological variations, pre-existing weakness, and fault kinematics to evaluate structuralcontrols on localization of ore bodies.

Apr 22, 2003

By John Guilbert

"The paper examine the remarkable improvements in our understanding of the linkages among hydrothermal ore deposit types that are developing as we enter the 21st century. Dramatic changes have occurred in ourperceptions of formative processes and genetic models for hydrothermal deposits in the last 30 years that will profoundly change the techniques and methods whereby exploration for those deposits will proceed in the next decades. "

Apr 24, 2001

By Francisco Camus

"El presente trabajo describe la geología y mineralización del proyecto minero Los Chankas. Dicho yacimiento está ubicado en la parte oeste de la Cordillera Central de los Andes del sur del Perú, dentro de la provincia metalogenética de Andahuaylas-Yauri, como un sistema porfirítico asociado a ambientes cordilleranos. El depósito está relacionado a un complejo de intrusiones félsicas y desarrollo de fases orto-tardi magmáticas e hidrotermales como procesos formadores de a mineralización económica del tipo Cu-Mo-Au. Las diferentes zonas de mineralización muestran partes superiores con pitch limonita, neotocita goetita y esporádicamente tenorita y ferromolibdenita. La zona de enriquecimiento muestra calcocina, covelina, digenita y bornita, con ocurrencia de calcopirita, bornita y molibdenita en la zona de sulfuros primarios. Las características conocidas de mineralización en Los Chancas definen un sistema porfirítico de niveles de emplazamiento relativamente profundos, con evidencias de particularidades metalogenéticas, las cuales son estudiadas como parte de la evaluación del proyecto."

Apr 24, 2001

By Sivan Iswaran, Will McLean

This paper details a 2MLD ion exchange water treatment plant which selectively removes arsenic, antimony, iron, hardness, and sulphate from mining water; designed to meet environmental quality indicators such as sulphates. The client, Fosterville Gold Mine Pty Ltd, is owned by Kirkland Lake Gold and is one of the world’s highest grade gold mines. The site located near Melbourne, Australia had identified a risk of reduced mine water storage capacity due to surface run-off and increased sulphate rich dewatering of the underground mine at depth. Clean TeQ Water carried out the project management, process design, procurement, and commissioning for the plant, which was handed over in August 2020.

Sep 30, 2022

By Peter Megaw

The paper point out that the carbonate Carbonate Replacement Deposits (CRDs) are epigenetic, intrusion-related, high-temperature sulfide-dominant Pb-Zn-Ag-Cu-Au-rich deposits that typically form lenses or elongate to elongate-tabular bodies referred to as mantos or chimneys. Recent studies have shown that CRDs do occur in predictable geologic environments, allowing focusing of regional exploration. In addition, they have mappable alteration patterns that can be used to determine the magnitude of a given system and elemental zoning patterns that greatly enhance the chances of drilling success. Several recent discoveries of “blind” replacement deposits have been made by careful field evaluation of host and capping rocks coupled with geophysics.

Apr 24, 2001

By Rudi Acuña, Alejandro Luna

El proyecto: “Agua saludable para Comunidades” busca mejorar la calidad de vida en las localidades de Carumas, Cuchumbaya, Pocata, Coscore, Tala y Calientes, cuya población nunca ha contado con sistemas de agua potable para su consumo, teniendo que consumir agua de fuentes no adecuadas. A través de esta iniciativa, se plantea cambiar esta realidad instalando sistemas de tratamiento de agua que funcionan con energía renovable, y que requieran una operación sencilla con mínimo mantenimiento.

Sep 29, 2023

By Robert Gordon, Leduar Ramayo

This paper reviews the application of the magnetotellurics method for deep earth imaging, specifically its recent use to better understand original mineral emplacement processes. Resistivity information from newer innovative applications of the technology for nearer surface imaging also provides valuable insights into near surface structure, which in some cases has led directly to new discoveries.

May 10, 2023

By Jorge Castillo

"El presente trabajo describe las nuevas opciones tecnológicas para optimizar la recuperación de oro libre por procedimientos no convencionales, sobre la base de resultados experimentales realizados por diversos investigadoresy que están al alcance de los profesionales peruanos como alternativas de optimización metalúrgica. "

Sep 9, 2007