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May 2021

Volume 73    Issue 5

FEATURED ARTICLES

From diesel to batteries: Issues, challenges and solutions to upgrading a mine’s power infrastructure
James Onsager, Dave Zabel
Preview  
Industry leaders turn to technology for improvements: Unlocking the power of people in the process
William Gleason
Preview  
USGS 2020 Critical Minerals Review
Steven M. Fortier, Nedal T. Nassar, Karen D. Kelley, Graham W. Lederer, Jeffrey L. Mauk, Jane M. Hammarstrom, Warren C. Day, Robert R. Seal
Preview  
USGS 2020 Mining Review
Staff, U.S. Geological Survey National Minerals Information Center
Preview  
AIME: The Institute's first 50 years: 1871-1921
George Luxbacher
Preview  

TECHNICAL PAPER ABSTRACTS

Extended abstracts from the SME journal Mining, Metallurgy & Exploration
Abstract  
Design of the Otjikoto Gold Mill, Namibia
John Rajala
Abstract  
Competencies for the competent person: Defining workplace examiner competencies from the health and safety leader’s perspective
Jonathan K. Hrica, Brianna M. Eiter
Abstract  
Field verification of an improved mine fire location model
D. Bahrami, L. Zhou, L. Yuan
Abstract  
Preliminary evaluation of carbon dioxide, oxygen and hydrogen for promoting chromite liberation by breakage
Mahmut Camalan, Mehmet Ali Recai Onal
Abstract  
Characterization of bauxite residue and challenges for scandium extraction by the hydrometallurgical route
Amilton Barbosa Botelho Junior, Denise Crocce Romano Espinosa, Jorge Alberto Soares Tenorio
Abstract  
Development and reconciliation of a mine operation value chain flowsheet in IES to enable grade engineering and process mass simulations for scale-up
E. Amini, M. Becerra, T. Bachmann, N. Beaton, G. Shapland
Abstract  

SME NEWS

Fine Grind  
SME Foundation  
Minerals Education Coalition  
Environmental Division News  
Personal News  
Rock in the Box  
Obituaries/Necrology  

DEPARTMENTS

Politics of Mining  
Industry Newswatch  
Doug Silver's Column  
Web Directory  
Professional Services/Classifieds  
Index of Advertisers  
The Drift of Things