Results 71 to 80 of about 8,700 (211)
Microbial ecology of Thiobacillus ferrooxidans [PDF]
, 1990 FINAL TECHNICAL REPORT TO U.S. DEPARTMENT OF THE INTERIOR Geological Survey Washington. D.C.The contents of this report were developed in part under a grant from the Department of the Interior, U.S. Geological Survey.
Braddock, Joan F. +5 more
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Water Resources Research, Volume 61, Issue 10, October 2025.Abstract The Giant Mine (1948–1999) generated 16 Mt of Au‐bearing mill tailings (2800 mg kg−1) originating from a mixture of flotation tailings (84.8 wt%), calcine residues (14.4 wt.%), and arsenic trioxide roaster waste (0.8 wt.%). A water treatment system for high As mine dewatering effluent has operated since the end of mine operations, with the ...
David M. Hilger +4 more
wiley +1 more source
Journal of ChemistryRecently, preoxidation is an effective pretreatment method of refractory gold ore, which has been widely used due to the high desulfurization, arsenic removal, low environmental pollution, and rapid reaction rate.
Chang Sok Kim +4 more
doaj +1 more source
Characterisation of gold from Fiji [PDF]
, 1995 This is a study of the variation in chemistry and inclusion mineralogy of bedrock and placer gold from Fiji. It forms part of a large project, undertaking gold characterisation from a wide range of geological environments in Ecuador, Zimbabwe ...
Henney, P.J., Naden, Jon
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Deep Underground Science and Engineering, Volume 4, Issue 3, Page 406-421, September 2025.The Fobinso granitoids are granodiorites, while the Esuajah granitoids are granites based on their mineralogical composition. The granitoids are generally enriched in LILE and LREE than HFSE, MREE, and HREE, indicating mixing with crustal sources during their evolution.
Emmanuel D. Sunkari +2 more
wiley +1 more source
New orogenic type gold occurrences in the Uyanga ore knot (Central Mongolia)
Mongolian Geoscientist, 2018 The Uyanga ore knot district of the Khangay metallogenic zone are hosted by the lower-middle Devonian volcanogenic-sedimentary Erdenetsogt formation.
Ariunbileg Sodov +6 more
doaj +1 more source
ChemistryOpen, Volume 14, Issue 9, September 2025.The review explores the latest updates and information about the global trends and hazards of e‐waste and also discusses the bioleaching of metals and nanoparticles from various inorganic wastes. It also focuses on the mechanistic pathway of the bioleaching process and computational aspects. Inorganic waste management and metal recovery technology pose
Adhish Jaiswal +7 more
wiley +1 more source
Thermithiobacillus plumbiphilus AAFK—Arsenic-Resistant Bacteria Isolated from Arsenopyrite Material
Microbiology ResearchAutotrophic sulfur-oxidizing bacteria can play a key role in the metal bioleaching from low-grade sulfide-containing ores. The most commonly used bioleaching group is presented with acidophilic bacteria of the order Acidithiobacillales.
Artem Shaikin +3 more
doaj +1 more source
Известия высших учебных заведений: Геология и разведка, 2018 The distribution of rare-earth elements (REE) in ores of gold deposits of East Transbaikalia has shown that the ore-bearing magma chambers have different depths and degrees of differentiation.
B. N. Abramov
doaj +1 more source
Geology and mineral deposits of the Julian District, San Diego County, California [PDF]
, 1934 The Julian region, in the central part of San Diego County, California, includes the Julian, Banner, several other less important mining districts, and the Stonewall Mine on the Cuyamaca land grant.
Donnelly, Maurice
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