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  • SME
    Equipment Cost Reporting By Major Component Analysis And Frequency Distribution

    By Lorraine Brandt Yde

    This paper describes development of a cost report that is descriptive, logically oriented, and concise. Since the costs involved relate to mining, this reporting technique could help bridge any possib

    Jan 1, 1971

  • SME
    Sulfuric Acid Leaching Of A Germanium Gallium Ore (07c9d8f2-2023-4c43-a5bc-e9e38ed0ef41)

    By D. D. Harbuck

    The U.S. Bureau of Mines investigated germanium and gallium extraction from an ore containing 0.089% Ge and 0.036% Ga. While previous researchers concluded that a reducing agent such as 502 is needed

    Jan 1, 1991

  • SME
    Modern Mining Methods - Surface - Background Of Surface Mining

    By Edwin R. (Original by) Phelps

    Surface mining refers to the process of removing the material (over- burden) overlying a coal seam and exposing the coal so that it can be loaded out and conveyed by trucks or other methods to the pre

    Jan 1, 1981

  • SME
    Influence of highwall mining progression on web and barrier pillar stability

    By M. J. Raffaldi, K. W. Harris, K. A. Perry

    "Highwall miners have been widely used to extract additional coal reserves from existing surface operations, particularly on contour operations in the Appalachian coalfields. Using a continuous miner

    Jan 1, 2014

  • SME
    Injury Experience Analysis For Risk Assessment And Safety Evaluation (419d1321-aef1-473a-bd6e-0cad4598d750)

    By A. Bhattacherjee

    Industries in general and the mining industry in particular have become more safe than ever before. However, there is a need to increase the search for the causes of mining work-related injuries and t

    Jan 1, 1991

  • SME
    Statistical Analysis Of Blasthole Sampling Data From The Paradise Peak Mine, Nevada

    By W. D. Delahaut

    Sampling tests performed at the Paradise Peak Mine compared various blasthole samplers and reverse circulation sampling methods. Statistical analysis of the data indicates that be-low-the-deck bag sam

    Jan 1, 1991

  • SME
    Tailing Dam Monitoring – Safety Enhancement Through Data Fusion - SME Annual Meeting 2022

    By J. Kretschmann, A. Müterthies, T. Rudolph, C. Yang, P. Goerke-Mallet

    Catastrophic failures of dams and tailing storage facilities (TSF) have triggered the development of integrated ground monitoring concepts for hazard assessment, risk management and public safety. The

    Mar 2, 2022

  • SME
    Travelling In Chile

    By F. Habashi

    Chile is at present the largest copper and rhenium producer and was before World War I the largest nitrate producer. She is also an important producer of lithium carbonate and molybdenum oxide. An imp

    Jan 1, 2011

  • SME
    Polymetallic ferromanganese deposits research on the Atlantic Spanish continental margin

    By Rosario Lunar, Jesús Martínez-Frías, Egidio Marino, Trinidad Torres, Jose E. Ortiz, Juan A. Martín-Rubí, Luis Somoza, Ricardo León, Teresa Medialdea, Javier González

    Seamounts, submarine banks, volcanoes and undercurrent channels are prominent geomorphic features that have become an important target for minerals research and exploration with the goal of future exp

    Sep 1, 2014

  • SME
    A Portable Deep Learning-based Solution For Roof Fall Hazard Detection - SME Annual Conference 2023

    By P. Lopez, E. Wellman, N. Risso, A. Anani

    Current machine learning models used for roof fall hazard prediction are mounted on expensive sensors, computationally expensive, or lack the robustness for accurate prediction in the underground mini

    Feb 1, 2023

  • SME
    Improvements Of The Determination Of Block Grades From Blast Hole Data In Porphyry Type Deposits

    By Miche1 Dagbert

    In most open pit operations mining porphyry type deposits, production planning rests on an are reserve inventory block file which is derived from diamond drill hole data. With such a practice, the way

    Jan 1, 1978

  • SME
    Economic Geology Of Perlite Production In New Mexico

    By Richard M. Chamberlin

    Perlite is an altered rhyolitic glass with 2 to 5 wt % water that expands or "pops" when heated quickly to plasticity while evolving steam to form lightweight, glass foam. Commercial perlite deposits

    Jan 1, 1994

  • SME
    Initial? Stage Sulfuric Acid Leaching Kinetics Of Chalcopyrite Using Radiochemical Technique

    By J. P. Baur

    The sensitivity of radiochemical techniques makes possible the study of the initial stage sulfuric acid leaching kinetics of chalcopyrite and other copper sulfide minerals. High-grade Transvaal chalco

    Jan 1, 1972

  • SME
    Rehabilitation Risk Mapping System: Case Studies at the Turquoise Ridge Joint Venture, Nevada

    By L. Sandbak

    The TRJV Mine is located approximately 43 miles northeast of Winnemucca, along the east flank of the Osgood Mountains in the Potosi Mining District, Humboldt County, Northwest Nevada (see Figure 1).

    Feb 23, 2014

  • SME
    Improved Apatite Recovery From Pyroxenite Ore Using Dry Milling (76e4c0cb-a59b-4aa7-85f7-7e1251e9671f)

    By G. J. van der Linde

    Foskor operates a mine in the Northern Province of the Republic of South Africa exploiting the igneous complex at Phalaborwa. It produces about 3 million tons of phosphate concentrate per year by mean

    Jan 1, 1999

  • SME
    Adsorption of Salicyl Hydroxamic Acid on the Oxides of Selected Rare Earth Elements

    By R. M. LaDouceur, C. A. Young, W. Nicholas

    "Salicyl hydroxamic acid (SHA) adsorption on two rare earth oxides, lanthanum and yttrium, was studied. Adsorption at both surfaces occurred in two stages. Initially, the monovalent anionic collector

    Jan 1, 2016

  • SME
    LIX? 70 A Major Advance In Liquid Ion Exchange Technology

    In early 1970, General Mills Chemicals, Inc. announced the availability of en improved liquid ion exchange reagent, LIX® 64N, for the recovery of copper from various solutions, such as dump leach liqu

    Jan 1, 1971

  • SME
    Practical Application of Surfactants for Respirable Silica Dust Control - SME Annual Meeting 2024

    By Randy Reed, Barbara J. Arnold

    Respirable crystalline silica poses a significant health risk, with the American Lung Association estimating that 2.3 million workers are exposed to silica in the workplace. This includes mine workers

    Feb 1, 2024

  • SME
    US Gold Mine Production And Reserves In 1996

    By Minerals and Materials Analysis Section

    During 1996, US mines produced 319 t (10.26 million or) of gold metal valued at $4 billion. At yearend, mine reserves were estimated to be 4.7 kt (151 million oz) of gold metal. Almost all of the prod

    Jan 1, 1997

  • SME
    Impact of face ventilation and nitrogen inertization on hazardous gas distribution in bleederless longwall gobs

    By J. Marts

    Underground longwall coal mining sections are operated as sealed gobs if the coal is prone to spontaneous combustion. Sealing along the gate roads during longwall face retreat limits the flow of fresh

    Sep 1, 2013