Results 201 to 210 of about 17,951 (263)

Use of 3D‐Printed Polylactic Acid (PLA) Casts for Surveying Exercises in Preclinical Removable Partial Denture

Journal of Dental Education, EarlyView.
Himanshi Aggarwal, Yolanda Natali Raico Gallardo, Suvendra Vijayan, Cortino Sukotjo   +3 more
wiley   +1 more source

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Diavik waste rock project : blasting residuals in waste rock piles

2011
Mining generates and moves the highest volume of material in the world. At mine sites throughout the world, explosives are used to fragment rock into workable size fractions. Mine-water chemistry can be influenced by residual blasting agents used during mining.
Bailey, Brenda L., Smith, Lianna J.D., Blowes, David W., Ptacek, Carol J., Smith, Leslie, Sego, David C.   +5 more
openaire   +1 more source

Waste-rock hydrogeology and geochemistry

Applied Geochemistry, 2015
Abstract The oxidation of sulfide minerals in waste rock has the potential to generate low-quality drainage that can present a significant challenge to mine owners, regulators, and other stakeholders. Challenges involved in managing waste rock include the large volume of waste rock produced and the difficulty in predicting the quality and quantity of
Richard T. Amos, David W. Blowes, Brenda L. Bailey, David C. Sego, Leslie Smith, A. Ian M. Ritchie   +5 more
openaire   +1 more source

Strategy for Radioactive Waste Disposal in Crystalline Rocks

Science, 1981
A strategy for waste disposal is proposed in which the repository would be situated in a crystalline rock mass beneath a blanket of sedimentary rocks whose ground-water flow characteristics are well understood. Such an approach exemplifies the concept of multiple barriers to the isolation of radioactive wastes from the biosphere.
J D, Bredehoeft, T, Maini
openaire   +2 more sources

Waste Rock and Tailings Mixtures as a Possible Seal for Potentially Acid Forming Waste Rock

2003
Potentially acid forming (PAF) waste rock contained in dumps formed as a result of open cut mining of metalliferous orebodies are conventionally sealed or covered using a near-saturated, low permeability compacted clay layer, protected with a mulch layer and/or vegetated growth medium.
Williams, D.J., Wilson, G.W., Panidis, C.   +2 more
openaire   +2 more sources

The Diavik Waste Rock Project: Persistence of contaminants from blasting agents in waste rock effluent

Applied Geochemistry, 2013
Abstract During mining operations, explosives are used to fragment rock into workable size fractions. Mine-water chemistry can be affected by blasting agent residuals, including NH3, NO 2 - , NO 3 - , Cl−, and ClO 4 - .
Brenda L. Bailey, Lianna J.D. Smith, David W. Blowes, Carol J. Ptacek, Leslie Smith, David C. Sego   +5 more
openaire   +1 more source

The Diavik waste rock project: Water flow through mine waste rock in a permafrost terrain

Applied Geochemistry, 2013
Abstract A field experiment is being carried out at the Diavik diamond mine in northern Canada to investigate the influence of unsaturated flow behavior on the quality of drainage from mine waste rock piles in a region of continuous permafrost. This paper is part of a series describing processes affecting the weathering of waste rock and transport of
Matthew Neuner, Leslie Smith, David W. Blowes, David C. Sego, Lianna J.D. Smith, Nathan Fretz, Michael Gupton   +6 more
openaire   +1 more source

Diavik waste rock project : thermal transport in a covered waste rock test pile

2011
Covers are widely used in the management of mine tailings and waste rock and most current cover designs and constructions are in temperate regions. However in cold regions, certain features and processes are unique and they can be utilized to reduce the production of acid rock drainage (ARD).
Pham, Nam, Sego, David, Blowes, David, Amos, Richard, Smith, Leslie   +4 more
openaire   +1 more source