Results 211 to 220 of about 17,951 (263)

Molybdenum and zinc stable isotope variation in mining waste rock drainage and waste rock at the Antamina mine, Peru

Science of The Total Environment, 2016
The stable isotope composition of molybdenum (Mo) and zinc (Zn) in mine wastes at the Antamina Copper-Zn-Mo mine, Peru, was characterized to investigate whether isotopic variation of these elements indicated metal attenuation processes in mine drainage. Waste rock and ore minerals were analyzed to identify the isotopic composition of Mo and Zn sources,
E K, Skierszkan, K U, Mayer, D, Weis, R D, Beckie   +3 more
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Waste Rock Biogeochemistry in a Permafrost Environment: Examination of a Cover Design for a Low-Sulfide, Granitic Waste Rock

Geomicrobiology Journal, 2017
ABSTRACTAt the Diavik Waste Rock Project's mine-research site, the microbial colonization and oxidation of waste rock sulfide minerals are attenuated by the extreme freeze-thaw cycle of a permafrost environment. The closure design for the waste rock stockpile consists of a low-sulfide waste rock and low-permeability till, covering a relatively higher ...
Jeff B. Langman, Harish Veeramani, David W. Blowes, Brenda Bailey, David Wilson, Leslie Smith, David C. Sego, Rich T. Amos, Steven P. Holland   +8 more
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The Diavik Waste Rock Project: Measurement of the thermal regime of a waste-rock test pile in a permafrost environment

Applied Geochemistry, 2013
Abstract The interior thermal regime of a field-scale experimental waste rock pile in the Northwest Territories, Canada, was studied. Test pile construction was completed in the summer 2006, and temperature data was collected continuously since that time to February 2009. The temperature data indicates the test pile cooled over the study period, with
Nam H. Pham, David C. Sego, Lukas U. Arenson, David W. Blowes, Richard T. Amos, Leslie Smith   +5 more
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The Diavik waste rock project: Initial geochemical response from a low sulfide waste rock pile

Applied Geochemistry, 2013
Abstract Three large-scale experimental waste rock piles (test piles) were constructed and instrumented at the Diavik Diamond Mine in the Northwest Territories, Canada, as part of an integrated field and laboratory study to measure and compare physical and geochemical characteristics of experimental, low sulfide waste rock piles at various scales ...
Lianna J.D. Smith, Brenda L. Bailey, David W. Blowes, John L. Jambor, Leslie Smith, David C. Sego   +5 more
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The Diavik Waste Rock Project: Particle size distribution and sulfur characteristics of low-sulfide waste rock

Applied Geochemistry, 2013
Three large-scale instrumented waste rock piles were constructed at the Diavik Diamond Mine in the Northwest Territories, Canada. These experimental waste rock piles (test piles) are 15 m high and are part of an integrated field and laboratory research program to characterize and compare low-sulfide waste rock and drainage at various scales.
Lianna J.D Smith, David W. Blowes, John L. Jambor, Leslie Smith, David C. Sego, Matthew Neuner   +5 more
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The Diavik Waste Rock Project: Design, construction, and instrumentation of field-scale experimental waste-rock piles

Applied Geochemistry, 2013
The physicochemical processes that affect acid mine drainage (AMD) in unsaturated waste rock piles and the capabilities of small-scale laboratory experiments to predict AMD from waste rock are not well understood. An integrated laboratory and field study to measure and compare low sulfide waste rock and drainage characteristics at various scales has ...
Lianna J.D. Smith, Michael C. Moncur, Matthew Neuner, Michael Gupton, David W. Blowes, Leslie Smith, David C. Sego   +6 more
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Concepts for Co-Mixing of Tailings and Waste Rock

2003
The co-mixing of tailings and waste rock involves the intimate blending of tailings and waste rock to create a new material (Co-Mix) with superior physical and hydraulic properties. The new material has a low hydraulic conductivity, low compressibility, high water retaining capacity and high shear strength.
Wilson, G.W., Plewes, H.D., Williams, D.J., Robertson, J.   +3 more
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Geochemical and Mineralogical Characterisation of Two Contrasting Waste Rock Dumps — The INAP Waste Rock Dump Characterisation Project

2003
This paper presents the results and findings of geochemical and mineralogical testwork conducted on samples collected from waste rock dumps at two mine sites, located in South Carolina, USA (Site 1) and Sudbury Ontario, Canada (Site 2). Important aspects of the relationship between the physical and geochemical aspects of the dumps are also presented ...
Tran, A. B., Miller, S., Williams, D.J., Fines, P., Wilson, G.W.   +4 more
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Geochemistry of waste rock at dumping area

International Journal of Mining, Reclamation and Environment, 2009
Geochemical characteristics and the increase in the total reactive surface area of the sulphide-bearing rock due to weathering processes at dumping area, are expected to enhance the oxidation of sulphides, leading to the generation of acid mine drainage (AMD). The study of the changes of geochemical characteristics of sulphide-bearing rocks showed that
Candra Nugraha, Hideki Shimada, Takashi Sasaoka, Masatomo Ichinose, Kikuo Matsui, Imanuel Manege   +5 more
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Geotechnical characterization of mine waste rock

2011
The determination of geotechnical charactertiscs of waste rock is essential for addressing issues of in situ hydrology and the stability of steep and high-standing dumps. Based on laboratory investigations and numerical modeling, this paper gives the geotechnical properties of a selected waste rock under saturated and unsaturated conditions.
Azam Shahid, Wilson G. Ward, Fredlund Delwyn G., Van Zyl Dirk   +3 more
openaire   +1 more source