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Jan 1, 1985

By Edgardo Rabanal, Mario Adrianzén

El presente trabajo nos permitirá demostrar las bondades del potencial que tiene el enfoque de Newmont para la gestión de riesgos integral que es el Sistema de Gestión de Riesgos (RMS Risk Management Sistem) uno de los principales componentes es la Gestión de Riesgos de Fatalidad (FRM, por sus siglas en inglés de Fatal Risk Management) que es una herramienta primordial de gestión para evitar fatalidades. En los proyectos de Newmont Yanacocha (Proyecto Yanacocha Sulfuros YSP y Proyecto de Tratamiento de Aguas WTP2) se utiliza el FRM para brindar asesoramiento, acompañamiento y empoderamiento en la salud y seguridad de las empresas locales y sus colaboradores.

Sep 29, 2023

By BUREAU OF MINES

In July, 1918, the attention of the Secretary of the Interior WItS called to the rapidly increasing cost of producing gold and the declining output of that metal in the United States. Realizing the importance of the gold-mining industry, the Secretary appointed a. committee, consisting of Hennen .Iennings, chairman, J. H. Mackenzie, and Charles Janin, of the Bureau of Mines, and H. D. Me- Caskey and F. L. Ransome, of the United States Geological Survey, to,make a thorough study of the gold-mining situation in the United States. The study was to cover the increased cost of recovery and the decreased output of gold, and to consider the different measures that had been proposed to relieve the industry and stimulate production. This report embodies the results of the investigation and study made by the committee. The report presents statistical data compiled from various sources, showing the production of gold in the United States and other countries, with comparative figures for coal, iron, and other mineral products, and describes the sources and distribution of gold output in the United States. It discusses the relation of gold' production to finance and credit, the causes for the decline in gold output, and measures for the relief of the industry. The Interior Department publishes this report in the belief that the widest publicity possible should be given the findings of the committee in order that attention may be directed to the serious conditions revealed therein, and in the hope that wide discussion of the subject may result in some action being taken that will aid in upholding the gold standard ,and the gold industry.

Oct 30, 1919

By Scott G. Britton

Mine exploitation is a broad subject whose focus is the technical skills or efforts needed for the extraction of mineral from a known ore body. Mine exploitation can be considered the very core of the mining engineering discipline. It begins at the conclusion of the exploration and development stages of mining and ends when the ore body is exhausted and the mine (or mines)closes and is reclaimed. Section 8 on mine exploitation is comprised of seven chapters: (1) classification of mining methods, (2) mine surveying and mapping, 3) systems engineering, (4) computer methods, (5) labor relations and training, (6) management and administration, and (7) mine closure, sealing, and abandonment. Each chapter focuses its efforts towards providing detailed and useful information for the engineer on basic mine exploitation principles. The information can be applied to a broad range of mining problems without regard to mineral type or mining method.

Jan 1, 2008

By Lytman Jordán

En la actualidad, el proceso de Ore Control de Tintaya se convierte en un reto porque la naturaleza del yacimiento Metasomático de Contacto Tipo Skarn presenta una mineralización compleja a manera de pasas en una torta. En ese sentido, la cultura Sigma -que presenta poderosas herramientas estadísticas y de gestión de procesos-, logró conceptualizar el proceso de ore control e identificar y optimizar tres sub-procesos críticos: el muestreo de Blasthole, preparación y análisis de Muestras de Blasthole y el Ore Control Operativo. Por ello, el presente texto señala la optimización del oro control de Tintaya a través de la metodología Six Sigma, donde se logra mejorar el proceso desde el muestreo de blasthole hasta el envío de mineral a las plantas, se minimiza los eventos de fuga de mineral a los botaderos y con la data confiable de los blasthole, se elaboran modelos de corto plazo que permiten generar planes predecibles de minado.

Sep 9, 2007

By Francisco Gallo Atard

El presente texto señala los dispositivos promocionales vigentes respecto de los decretos leyes de minería, así como se analiza los problemas legales y tributariosque limitan el desarrollo minero tales como: indeterminación de leyes dictadas, normas negativas, falta de respeto a las normas dictadas, carencias de reglamentaciones y ausencia de criterios técnicos. Asimismo, se revisa la comercialización, comunidad minera, importaciones, productividad y los derivados de geografía y orografía.

Mar 1, 1979

By Bension Varon

Como parte de la crisis de energía( petróleo), los países en desarrollo enfrentan una perspectiva de costos de combustible mucho más altos en los próximos años, así como la contínua amenaza de que los suministros disponibles puedan ser retenidos, ya sea por razones políticas o en un proceso de un trato unilateral con los países productores claves en el actualmente famoso grupo de la OPEP (la Organización de Países Exportadores de Petróleo). En ese sentido, el presente texto cuestiona la transformación de uno o más minerales ampliamente comercializados no utilizados para combustibles. Para los países desarrollados, esta transformación significa una esperanza, una liberación del comercio, donde ellos pueden tener éxito en obtener de los países avanzados mayores recursos mediante las operaciones del mercado en circunstancias cambiables, y posiblemente debido a alianzas que emulan a la OPE.

Mar 1, 1976

By Federico Oviedo Kernan

El texto señala el procedimiento de la campaña de higiene, sanidad y seguridad industrial realizada en Pamplona y el diseño de un programa de seguridad en la ingeniería minera. Ante el incremento de accidentes registrados por influencia del medio ambiente -en tanto condiciones materiales y anímicas en el trabajador-, la Marcona Mining Company creó un departamento de seguridad e higiene industrial, a fin de mejorar sus condiciones y sentar las bases de la difusión entre los participantes de la zona. Entre los servicios y facilidades del aspecto externo tenemos: sanidad y profilaxia, servicio social, cooperativa, servicio médico, casas-comedor, medicina preventiva, curativa y medicina social. Mientras que en el aspecto interno, encontramos la higiene industrial, los ambientes de trabajo, iluminación, espacio, vapores, protección personal y ruido. Asimismo, es importante el rol del ingeniero de Seguridad quien además de su experiencia(5 años) y profesionalismo, se convierte en un intermediario del trabajador y la empresa, ofreciendo soluciones y evaluando las dificultades presentadas. Por ello, se hace importante la función del Pool o Asociación de diversas empresas en tanto difundan la información de la campaña entre los colaboradores de la empresa, a través del uso de prensa y propaganda para el desarrollo de seguridad de las mismas.

Jul 20, 1959

By Will Medina, Carlos Gonzáles, Ángel Navarro

Hoy en día, muchas empresas no tienen una comprensión clara de la línea de base de las emisiones de gases que producen hoy y cuál es su perfil de uso de energía. Aquellos que lo hacen a menudo usan hojas de cálculo que consumen mucho tiempo para compilar y son propensas a errores humanos. Además, es evidente que la actividad minera y la producción de metales, tal como se lleva a cabo en la actualidad, generan emisiones de carbono significativas. Esto pone de manifiesto la necesidad urgente de abordar este problema y adoptar medidas efectivas para reducir la huella de carbono de la industria minera.

Sep 29, 2023

By M. G. Wallis

This report presents the results of a study to develop a detailed mining method design based on longwall mining with sublevel caving. The method is applicable to low-dipping coal seams 20 or more feet thick such as are found in the western United States. The report covers (1) the development and description of the mining method, (2) evaluation of the engineering feasibility of the design, (3) estimates of productivity and recovery, and (4) an engineering cost analysis and economic feasibility evaluation of the mining method design.

Jan 1, 1977

By Jorge Agramonte Bermejo

Dado que el Perú es un pais rico en carbón antracítico y con limitados yacimientos de carbones semicoquizables, la tecnología que predominará para una producción mayoritaria será en relación con el consumo de la antracita en la industria de acero y de otras que le signifiquen ahorro de divisas y petróleo. En ese sentido, el objetivo del texto radica en hacer conocer la potencialidad de los yacimientos, cantidad, calidad de recursos y reservas de los mismos.

Nov 8, 1982

By Robert Koenig

El presente texto describe los aspectos que implican la demanda energética del país. Para ello, se dicta una política de acción conjunta entre el gobierno, los productores de petróleo y los mineros de carbón, con el fin de preparar un plan que permita la suspensión en el más corto plazo del régimen vigente de control de precios para los combustibles derivados del petróleo, procurando que alcancen gradualmente los niveles que rigen en el mercado internacional y a su vez promover un mayor consumo de los combustibles licuefactados derivados del gas natural, los productos de la gasificación de la antracita, y el establecimiento de gasoductos para su transporte.

Mar 1, 1958

By Augusto Cabrera La Rosa

El presente trabajo revisa el panorama sobre el proceso de clasificación y explotación de los recursos minerales no metálicos en el Perú, con el objeto de promover el desarrollo de la minería no metálica. Los metales de origen mineral se clasifican en cuatro grupos: metales en estado nativo y minerales metálicos, combustibles minerales, aguas subterráneas y un gran número de sustancias minerales que no están comprendidas en ninguna de las categorías mencionadas, y que constituyen el grupo de los no metíllicos, llamados también minerales y rocas industriales. Asimismo, se muestra la clasificación establecida por el código de minería (combustibles minerales, minerales industriales, refractarios, material de construcción y minerales no metálicos diversos). Luego se describe el valor de la producción nacional de minerales no metálicos, como la situación actual de la minería no metálica en el Perú. Concluyendo que el Estado debe priorizar la prospección de minerales no metálicos de acorde a la importancia del desarrollo del país, asi como estimular la iniciativa privada para el descubrimiento de nuevos depósitos de dichas sustancias comercialmente explotables.

Aug 20, 1963

By C. R. Tinsley

Investment activity in the Pacific Rim of Fire has seen a phenomenal surge from epithermal gold exploration. Individual countries are attractive because of lower up-front minerals lease costs (US, Canada), better geological prospectivity (Chile, Indonesia), or cheaper equities (Australia). Since the October 1987 stock-market crash, large companies are shedding minority joint venture interests to focus on core businesses. Some vertical integration is evident in Japanese coal investments in the Pacific Rim. This paper does not cover the aluminum industry oligopoly which is multi-national in character nor does it cover the many Canada to US minerals investments. It will be interesting to see if the new US-Canadian free-trade treaty will reverse that investment flow.

Jan 1, 1990

By Albert H. Fay

The first data compiled by the Bureau of Mines relating to coal- mine accidents in the United States were published in Bulletin 69," in which the total fatalities by years and States were tabulated from 1896 to 1912. Since the publication of Bulletin 69, further research has been conducted, with the result that the bureau is now able to publish for the first time all of the fatal accidents described in the State inspectors' reports by States, causes, and calendar years, from the beginning of inspection service to date. For the anthracite mines of Pennsylvania, there is a continuous record since 1870; the records of the Pennsylvania bituminous mines are continuous from 1877, and, with the exception of one year, the Ohio records are complete from 1874 to date. In fact, the records of all of the States, with few exceptions, are complete; and incomplete data for any year may generally be attributed to the fact that no report was published during that year. The magnitude of the coal-mining industry in the United States is such that too much stress can not be placed on the need of safeguard- ing the three-quarters of a million men employed. Although the figures given herein show an appalling record for past years, they are not published for the purpose of proclaiming the high fatality rate of the past. They are a record of experience covering a period of 45 years, showing causes and results of many accidents in the coal mines of the United States. They represent a diagnosis of the hazard of the mining industry, pointing out the principal physical causes of accidents, and make available a body of uniform facts that will serve as a basis of preventive measures for use in future operations. It is with these great purposes in view that the Bureau of Mines presents the classified data in this report. Classification and study of mine accidents on the basis of number of persons killed is common and very old, but fails to throw enough light upon the problem involved. Many serious accidents in mines have no fatal results, hence in a tabulation of fatalities they are overlooked and the real hazard of the industry is not made clear. An accident does not necessarily include an injury that may result therefrom. Such accidents as the breaking of a hoisting cable, an explosion of powder, gas, or dust, a runaway car or motor are all serious. Although no loss of life results, they should be recorded, investigated, and studied to prevent their repetition. No accurate data for the United States are available showing how far the personal element as related to the miner and his co-worker, the mine foreman, or to the superintendent and others in authority, contributes to accidents. Many accidents are due to inexperience on the part of the miner, his failure to heed orders, a misunderstanding of instructions and last, but not least, carelessness of himself or his fellow worker. A foreman or superintendent may fail to give proper warning regarding the conditions of certain parts of the mine; he may not have inspected certain rooms or entries on the day of a mine accident; the mine may not be properly equipped, or the operator may neglect to comply with the inspector's recommendations. There is, therefore, a personal element on the part of both the operator and the miner that must be considered. Legislation and the enactment of compensation laws will make the operator realize the seriousness of the mine-accident situation, when fatalities and injuries are to be paid for in legal tender of the realm. The miner must be educated and made to realize the dangers he encounters; he must learn that self-preservation and the safety of his fellow workmen should receive his first attention; he should cooperate with his employer, his asso- ciates, and the State mine inspector to the end that the mine hazard may be reduced to a minimum. "Cooperation for safety" should be the watchwords of the operator, miner, State inspectors, and all others in any way interested in the mining industry.

Jan 1, 1916

By J. M. Minguet

El cálculo de investigación de la mina tiene por objetivo investigar los procedimientos necesarios para que por determinadas galerías (generalmente talleres) circule un caudal de aire suficiente para hacer posible el trabajo en dichos puntos. Sin embargo, los cálculos de redes de ventilación se limitan a los análisis de redes previamente establecidas por métodos matemáticos que no pueden ser utilizados en pequeños ordenadores. En ese sentido, el presente texto señala las aplicaciónes del nuevo algoritmo matemático aplicable al cálculo de redes por ventilación de minas.

Sep 1, 1975

By Eduardo Aquije

El presente texto describe la investigación cualitativa realizada en el área de influencia directa del proyecto minero Cerro Corona, Cajamarca, donde se analizó la relación entre la intención de los pobladores de la comunidad de apoyar el establecimiento de una operación minera y la percepción del beneficio económico-costo ambiental para la comunidad, el interés económico personal, la percepción de equidad en el proceso de establecimiento del proyecto minero, la confianza en grupos ambientalistas, las instituciones públicas y en la industria minera.

Sep 14, 2009

By Alberto Ríos Carranza

El presente texto describe la evolución de la cuenca Lancones (Piura) y sus estilos de mineralización en la búsqueda de yacimientos vulcogénicos de sulfuros masivos. Dada las características de la cuenca es considerada el principal objetivo en la prospección de yacimientos vulcagénicos de sulfuros masivos. Así también se revisa el contexto geotécnico, geológico, metalogenia, depósitos magmáticos - hidrometales, tipo Skarn, y vetiformes, estratigrafía y modelo metalogénico.

May 1, 2016

By Joan Weinberg

The economy continued to expand during the third quarter, as real GNP rose at a seasonally adjusted annual rate of 3.8%, up from 2.5% in the second quarter (table 1). Continued job gains (see below), higher incomes, and an increase in installment debt, resulted in a nearly 20% increase in consumer spending on durable goods. Consumer expenditure on nondurables fell slightly, while spending on services continued at a moderate pace. Nonresidential fixed investment climbed nearly 24%, as producers purchased more durable equipment. Residential fixed investment was adversely affected by rising interest rates, which slowed new home construction from January to August, 1987 to a rate 11.2% below a comparable period in 1986. Net exports of goods and services deteriorated slightly, after three consecutive quarters of improvement. The volume of net exports has risen 15% for the year, contributing to economic and employment growth, but large price increases on imports have slowed the improvement in the nominal trade balance. Although U.S. goods have declined in price relative to foreign goods because of the devaluation of the dollar, faster growth in exports is hampered by austerity programs in developing countries, and emphasis in Germany and Japan on curtailing inflation and fiscal deficits.

Jan 1, 1987

By J. W. Thompson

"The Republic of Colombia on December 30, 1919, enacted a new petroleum law. The Act is expressly limited to mineral oil, natural gas, bitumen, wax and fossilized resin and to asphalt intended for export.The law is not only intended to encourage local investors, but to attract foreign capitalists for oil development. Provision is made for a special edition ion of the law in such languages as the Government may deem necessary to give it extensive circulation within the country and abroad. The published editions must contain the provisions of the law relating to alienship and naturalization.All public lands, or what are termed unclaimed lands, are open to flee prospecting for the purpose of discovering the deposits named in the law, A prospector must obtain from the Government a, license which binds him to deliver to the Government topographic plans of the lands prospected, together with reports of their prospective yielding capacity. This license does not vest the li¬censee with any preferential right for contracting or leasing and may be drawn by the Government at any time.If a discovery is made by a licensee of any of the deposits named and he desires to exploit the same, he must present a memorial or application to the Ministry of Public Works, stating:- (a) the location and municipal district in which deposit beds are found; (b) boundaries of the zone of exploitation, which shall not be more than 5,000 or less than 1,000 hectares; (c) the names and nationality of all persons for whom the lease is sought and the action and time within which,they propose to make the exploitation; (d) the name of the corporation and its legal representatives with their residences; (e) if an alien, he must state his willingness to comply with the law relative to alienship and naturalization; (f) agreement to abide by all of the provieions of the law with regard to Government supervision, payment of taxes, rate of lease and causes of forfeiture; (g) the rate of rent or royalty that the applicant offers to pay, together with any other circumstances that may make the proposed lease advantageous to the Nation."

Apr 1, 1920