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2003-01-01
Coeppicus, S., Bauer, C., Grassmann, J., Ruhrberg, M., Peiffer, S.
Within the context of acid mine drainage (AMD) associated with mining activities worldwide there has been a tremendous research effort to determine the extent of AMD and assess the influencing factors controlling this process. However, the majority of the current approaches focus on local and...
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2003-01-01
Western Europe is a dynamic region, with an emerging co-operation between the individual nations both politically, economically, technically and scientifically. The European Union, today with 15 member States and with a range of central European States applying for membership, is a catalyst for...
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2003-01-01
Porterfield, D. C., Miller, S., Waters, P.
BHPBilliton operates the Mt Whaleback Mine located in the semi-arid Pilbara Region of Western Australia. Approximately 200 Mt of net acid generating (NAG) material still remains to be mined. Acid Rock Drainage (ARD) was first identified at the site in 1995 following cyclonic storms. This resulted...
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2003-01-01
Day, S., Sexsmith, K., Millard, J.
BHP Billiton Diamonds Inc (BHPB) has been mining kimberlite from several pipes at the Ekati Diamond MineTM located 300 km north of Yellowknife since 1997. Processing of kimberlite produces coarse kimberlite rejects (CKR, 0.5 to 8 mm) and fine tailings (less than 0.5 mm). The CKR are trucked to...
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2003-01-01
Wels, C., Lefebvre, R., Robertson, A. M.
Air movement and associated oxygen transport through waste rock dumps has the potential to significantly enhance the rate of oxidation of pyrite-bearing material. While this is a desired outcome for most heap leach operations, airflow in waste rock storage facilities can result in significant...
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2003-01-01
Shaw, S., Wels, C., Robertson, A., Fortin, S., Walker, B.
A background characterisation study was carried out in the Sangre de Cristo mountains, New Mexico, to: 1. quantify naturally occurring contaminant loads from mineralised areas; 2. define site-specific background concentrations; and 3. to determine key factors controlling spatial and temporal...
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2003-01-01
Trumm, D. A., Black, A., Cavanagh, J., Harding, J., de Joux, A., Moore, T. A., O’Halloran, K.
Acidic and metal-rich waters have been discharging from Sullivan Mine, West Coast, New Zealand since the closure of the mine during the early- 1990s. This has resulted in a decrease in pH from a background of 4.5 to 2.8 and an increase in metallic elements in nearby Rapid Stream. In addition to...
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2003-01-01
Miller, S., Rumble, C., Bolton, B., Voigt, K.
The Ok Tedi copper and gold mine is owned and operated by Ok Tedi Mining Limited (OTML) and is located in the Star Mountains of the Western Province of Papua New Guinea. Waste materials (both sulfidic and carbonate materials) from mining operations, comprising 55 Mt of waste rock and 31 Mt of...
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2003-01-01
BHP Billiton Iron Ore initiated a program in January 1995 at the Mt Whaleback operation in Newman, Western Australia to develop a closure plan for the overburden storage areas (OSA), which have the potential to generate acid rock drainage. The primary research program includes the development of...
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2003-01-01
Miller, S., Smart, R., Andrina, J., Neale, A., Richards, D.
The Grasberg is a large copper and gold open pit mine operated by PT Freeport Indonesia and located in the high equatorial mountains of Papua Province, Indonesia. The climate is alpine/sub-alpine with little seasonal variation in temperature and rainfall. The annual precipitation varies from...