BC MEND ML/ARD Annual Workshop

  1. Cash A., G. Wilson, P. Urrutia and J. Robertson. A 2011 Update for the Single-layer Desulphurized Tailings Cover Completed in 1999 at Detour Gold. Presented at the 2011 workshop.

    KEYWORDS:  cost  desulphurize  Detour  dry cover  model  NAG  PAG  slurry  tailings 

    Supporting Documents:

    1. Evaluation of a Single-Layer Desulphurized Tailings Cover. 6th ICARD

  2. Ayres B., L. Lanteigne and M. O'Kane. A Review of Performance of the Whistle Mine Backfilled Pit Cover System - Four Years After Construction. Presented at the 2009 workshop.

    KEYWORDS:  amend lime  backfill  dry cover  model  pit  soil barrier  treatment  waste rock  Whistle 

    Supporting Documents:

    1. Closure Planning and Implementation at CVRD Inco's Whistle Mine, Ontario, Canada

  3. O'Kane M.. A Summary of the INAP Report on the Evaluation of the Long-Term Performance of Dry Cover Systems. Presented at the 2004 workshop.

    KEYWORDS:  dry cover  guidelines  revegetation  soil barrier 

    Supporting Documents:

    1. Evaluation of the Long-Term Performance of Dry Cover Systems

  4. Mayich D. and B. Macdonald. Acid Rock Drainage Dry Covers Site Closure Program. Presented at the 2009 workshop.

    KEYWORDS:  Cape Breton  consolidate  dry cover  Franklyn  geomembrane  Princess  Summit  Victoria Junction 


  5. Blier A., D. Therrien and R. Gallinger. Acid Rock Drainage Management at La Mine Doyon. Presented at the 2007 workshop.

    KEYWORDS:  backfill  cost  Doyon  dry cover  HDS  PAG  prediction  treatment  underwater 


  6. Hicks, S.. Acidic Airport Drainage - Over 20 Years Worth of Experience . Presented at the 2006 workshop.

    KEYWORDS:  dry cover  Halifax airport  HDS  lime  lime treatment  limestone bed  non-mine 


  7. Isabel D., J. Cyr, A. Hebert and R. Maurice. Aldermac Mine Site Restoration. Presented at the 2009 workshop.

    KEYWORDS:  abandoned  Aldermac  amend lime  consolidate  dam  dry cover  elevated watetable  revegetation  settling pond  spill  tailings 


  8. O'Kane M.. An Overview of Dry Cover Systems Around the World. Presented at the 2000 workshop.

    KEYWORDS:  dry cover  guidelines  soil cover 


  9. Haug M.. Applications of Alternative Covers For Potash Mining. Presented at the 2004 workshop.

    KEYWORDS:  amend  dry cover  mine components  mitigation  potash 


  10. Jennings S. and P. Castiglione. Applications of Soil Physics for Long-term Monitoring of Soil Water Content in Evapotranspiration Cover Systems in Montana; Case Studies and Equipment Evolution. Presented at the 2009 workshop.

    KEYWORDS:  amend lime  Anaconda  ash  Colstrip  dry cover  monitoring  revegetation  soil barrier  store and release  tailings 


  11. Dukkett R., O.P. Flite and M. O'Kane. ARD Management at the Rio Tinto Ridgeway Gold Mine, South Carolina, USA. Presented at the 2012 workshop.

    KEYWORDS:  backfill  dry cover  impoundment  liner  prediction  Ridgeway  soil barrier  tailings  waste rock 


  12. Robertson A.. Assessment and Management of Risks Relating to Covers for Metal Leaching and ARD Mitigation. Presented at the 1998 workshop.

    KEYWORDS:  dry cover  guidelines  risk assessment 


  13. Heath G.. Autonomous Monitoring System Results at the Gilt Edge Mine. Presented at the 2004 workshop.

    KEYWORDS:  abandoned  dry cover  geomembrane  Gilt Edge  tracer 


  14. M. O'Kane. Boliden Aitik Mine Closure Planning WRSF Closure Planning Support Studies. Presented at the 2019 workshop.

    KEYWORDS:  Aitik  closure  discharge  drainage chemistry  dry cover  hydrology  loading  mitigation  model  NAG  PAG  soil barrier  waste rock 


  15. Martin J., G. Wiatzka, J. Scharer and B. Halbert. Case Studies that Illustrate the Benefits, Limitations and Information Requirements of Geochemical Modelling. Presented at the 2005 workshop.

    KEYWORDS:  backfill  Crean Hill  dry cover  guidelines  Kam Kotia  model  pit  prediction  waste rock 


  16. Van Dyk R.. Cementitious Sealant Materials for ARD Control. Presented at the 1995 workshop.

    KEYWORDS:  ash  cement  cost  dry cover  Myra Falls  tailings cover  waste rock 


  17. Baumgartl T., A. Schneider, D. Dole and D. Mulligan. Challenges for the Design of Cover Systems in the Australian Environment. Presented at the 2009 workshop.

    KEYWORDS:  Cobar  dry cover  Mount Isa  soil barrier 


  18. O'Kane M. and L. Barbour. Challenges with measuring cover system performance. Presented at the 2014 workshop.

    KEYWORDS:  Cape Breton  dry cover  monitoring 


  19. Meiers G., M. O'Kane, C. Bradley and J. Shea. Closure of a Legacy WRP: Transitioning to Passive Treatment. Presented at the 2015 workshop.

    KEYWORDS:  Cape Breton  dry cover  geomembrane  hydrology  treatment  Victoria Junction 


  20. Small A., J. Pugh, J. Stroiazzo and I. Walton. Closure of Jarosite Pond Facility, Timmins, Ontario: Design and Construction. Presented at the 2013 workshop.

    KEYWORDS:  closure  dry cover  geomembrane  impoundment  Kidd Creek  lime  processing  solid-residue  treatment 


  21. Rykaart M., D. Hockley, M. Nahir and G. Tremblay. Cold Region Covers: What Works and What Doesn't?. Presented at the 2009 workshop.

    KEYWORDS:  climate  climate change  dry cover  freezing  guideleines  soil barrier 


  22. Bleiker, D.. Concept to Closure: Victoria Junction Coal Preparation Plant. Presented at the 2006 workshop.

    KEYWORDS:  Cape Breton  closure  dry cover  geomembrane  hydrology  treatment  Victoria Junction 


  23. Phillip M., D. Hockley, B. Dawson and W. Kuit. Convective Flow Monitoring and the Influence of Cover Material. Presented at the 2009 workshop.

    KEYWORDS:  dry cover  failure  gas  health and safety  Sullivan  temperature  waste rock 

    Supporting Documents:

    1. Sullivan Mine Fatalities Incident: Technical Investigations and Findings
    2. Sullivan Mine Fatalities Incident: Key Conclusions and Implications for Other Sites

  24. Kemp D.. Cover Material Requirements for the ARD Tailings at Raglan. Presented at the 2003 workshop.

    KEYWORDS:  climate change  dry cover  filter  freezing  Raglan  tailings 


  25. O'Kane M.. Cover Systems in the Athabasca Oil Sands - A Summary of the 'Green Bullet' and Ten Years of Reclamation Research at Syncrude Canada Ltd.. Presented at the 2009 workshop.

    KEYWORDS:  dry cover  Oil Sands  reclamation  soil barrier 


  26. Ayres, B.. Design, Construction, and Performance Monitoring of Cover Systems for Waste Rock and Tailings. Presented at the 2006 workshop.

    KEYWORDS:  climate  dry cover  monitoring  soil barrier  water management  Whistle 


  27. Amos R.T., B.L. Bailey, N. Pham, N. Fretz, S. Hannam, D. Blowes, D.C. Sego and L. Smith. Diavik Waste Rock Project: Northern Aspects and Scaling Predictions. Presented at the 2012 workshop.

    KEYWORDS:  Diavik  drainage chemistry  dry cover  freezing  hydrology  prediciton  scale up  temperature 


  28. Condon P.. Dry Stack Tailings Disposal at the Greens Creek Mine, Admiralty Island, Alaska. Presented at the 2012 workshop.

    KEYWORDS:  amend carbon  backfill  codisposal  dry cover  filter  Greens Creek  prediction  tailings 


  29. C. Meints and M. Aziz. Equity Mine - 25 Years of Closure. Presented at the 2018 workshop.

    KEYWORDS:  batch  closure  collection  construction material  discharge  drainage chemistry  dry cover  Equity  financial security  HDS  hydrology  impoundment  monitoring  physical stability  prediction  receiving environment  soil barrier  solid residue  tailings  treatment  underwater  waste rock 


  30. Aziz M. and K. Ferguson. Equity Silver Mine: Over 10 Years Experience with Dry Covers. Presented at the 2004 workshop.

    KEYWORDS:  climate  dry cover  Equity  hydrology  lime  maintenance costs  model  monitoring  soil barrier  treatment  waste rock 


  31. Condon P.. Evaluation of Reclamation Concepts at the Greens Creek Mine, Admirality Island, Alaska. Presented at the 2011 workshop.

    KEYWORDS:  amend carbon  codisposal  dry cover  filter  Greens Creek  prediction  soil barrier  tailings  waste rock 


  32. Benson C.. Evolution of Soil Hydraulic Properties in Dry Covers: Lessons Learned from the Alternative Cover Assessment Program (ACAP). Presented at the 2009 workshop.

    KEYWORDS:  dry cover  GCL  geomembrane  soil barrier  store and release 

    Supporting Documents:

    1. Postconstruction Changes in the Hydraulic Properties of Water Balance Cover Soils

  33. O'Kane M., D. Christensen, K. Bonstrom and B. Huys. Evolution of Waste Rock Management and Cover System Design at BHPBilliton Iron Ore, Mt. Whaleback Operations, Western Australia. Presented at the 2011 workshop.

    KEYWORDS:  deposition  dry cover  encapsulation  model  Mt Whaleback  store and release  waste rock 


  34. Lindahl L.A., M. Sandberg and Lindvall M.. Experiences from Dry Cover Projects in Sweden, 1974-2004. Presented at the 2004 workshop.

    KEYWORDS:  Aitik  ash  Bersbo  biosolids  dry cover  elevated watertable  Enasen  Kristineberg  Saxberget  soil barrier 


  35. Benson C. and W. Albright. Field Scale Hydrology of Dry Covers: US EPA's Alternative Cover Assessment Program. Presented at the 2004 workshop.

    KEYWORDS:  dry cover  research  store and release 

    Supporting Documents:

    1. Field Water Balance of Landfill Final Covers

  36. Beckie R., L. Smith, K. Wagner and F. Guerin. Geochemistry of an Experimental Waste Rock Pile, Cluff Lake, Saskatchewan. Presented at the 2005 workshop.

    KEYWORDS:  Cluff Lake  drainage chemistry  dry cover  hydrology  prediction  scale up  waste rock 


  37. Sperling T.. Geomembrane Barriers In Bottom Liner and Cover Applications At Landfill Sites. Presented at the 2009 workshop.

    KEYWORDS:  dry cover  GCL  geomembrane  guidelines  liner  soil barrier 


  38. Hofton T. and R. Schwenger. Geomembrane Cover on Normetal Reactive Tailings: A Case Study. Presented at the 2009 workshop.

    KEYWORDS:  abandoned  consolidate  dry cover  geomembrane  Normetal  spill  tailings 


  39. Rowe R.K.. Geomembranes (GM) and geosynthetic clay covers (GCL): what is known and should be assumed by practitioners about cover durability. Presented at the 2014 workshop.

    KEYWORDS:  dry cover  GCL  geomembranes 


  40. Rowe R.K.. GMR and GCL covers: what monitoring, maintenance, repair and replacement is needed to ensure and contingency plans are needed for proactive detection and resolution of problems before there are significant environmental impacts. Presented at the 2014 workshop.

    KEYWORDS:  dry cover  GCL  geomembranes  maintenance  monitoring 


  41. Junqueira F., S. Dunlap and W. Wilson. Golden Sunlight Soil Covers on Waste Rock and Tailings. Presented at the 2004 workshop.

    KEYWORDS:  dry cover  Golden Sunlight  model  store and release  tailings  waste rock 


  42. Benson C.. Hydraulic & Chemical Properties of Geosynthetic Clay Liners Exhumed from Dry Covers. Presented at the 2009 workshop.

    KEYWORDS:  dry cover  GCL  geomembrane 

    Supporting Documents:

    1. Hydraulic Conductivity of Geosynthetic Clay Liners Exhumed from Landfill Final Covers

  43. Verberg R.. Hydrogeochemical Considerations Related to Disposal of Thickened Tailings, Including Paste. Presented at the 2008 workshop.

    KEYWORDS:  dry cover  filter  Neves Corvo  paste  slurry  tailings  thicken 


  44. Price W.. Information and Design Requirements for Dry Covers. Presented at the 2004 workshop.

    KEYWORDS:  dry cover  guidelines  maintenance  monitoring  revegetation  soil barrier  water management 

    Supporting Documents:

    1. Excerpts from Guidelines for Metal Leaching and Acid Rock Drainage at Minesites in British Columbia
    2. Excerpts from List of Potential Information Requirements in Metal Leaching and Acid Rock Drainage Assessment and Mitigation Work

  45. Rykaart M., D. Hockley, M. Noel, M. Paul and S. Jahn. International Review of Soil Cover Design & Construction Practices. Presented at the 2004 workshop.

    KEYWORDS:  dry cover  failure  guidelines  survey 


  46. Aubertin M.. Lessons Learned From Field Applications of CCBE. Presented at the 2004 workshop.

    KEYWORDS:  dry cover  Goldstrike  Lorraine  LTA  Manitou  model  monitor  soil barrier  tailings cover  UQAT 

    Supporting Documents:

    1. Water Diversion Capacity of Inclined Capillary Barriers
    2. The Behavior of Inclined Covers Used as Oxygen Barriers

  47. Ward A.. Long-term Cover Design and Performance Assessment - A Hanford Case Study. Presented at the 2004 workshop.

    KEYWORDS:  asphalt cover  dry cover  Hanford  store and release  uranium  water management 


  48. van Zyl D., M. Aubertin, R. Nicholson and I. Bruce. Maintenance and Triggers for Maintenance of Dry Covers. Presented at the 2004 workshop.

    KEYWORDS:  dry cover  guidelines  maintenance 

    Supporting Documents:

    1. Presentation
    2. Presentation

  49. Fransen P., J. Ruddock, T. Matuschka, S. Miller and W. Russell. Micro and Macro Scale Design and Performance of Dry Covers - Waihi, New Zealand. Presented at the 2009 workshop.

    KEYWORDS:  amend limestone  dry cover  encapsulation  tailings impoundment  Waihi  waste rock 


  50. Murphy M.. Mount Washington Remediation: Four hectares of Bituminous Liner. Presented at the 2009 workshop.

    KEYWORDS:  asphalt cover  dry cover  Mount Washington 


  51. Deniseger J. and P. Healey. Mt. Washington Copper Mine Remediation Project. Presented at the 2011 workshop.

    KEYWORDS:  abandoned  asphalt cover  dry cover  Mount Washington  passive  receiving environment  wetland 


  52. Keller J., T.M. Yao, M. Milczarek, D. Hammermeister and R. Rice. New Methods for Hydraulic Characterization of Mine Waste and Cover System Materials. Presented at the 2009 workshop.

    KEYWORDS:  dry cover  heap leach  hydrology  model  prediction  waste rock 


  53. B. Bussière, S. Puliot, E. Charbonneau and W. Wilson. On the Use of Paste Rock as Cover Material for Mine Site Reclamation. Presented at the 2018 workshop.

    KEYWORDS:  Canadian Malartic  co-disposal  dry cover  kinetic test  options analysis  slurry  tailings  waste rock 


  54. Chambers D.. Operational Use of Mathematical Modelling. Presented at the 1996 workshop.

    KEYWORDS:  dry cover  model  prediction  tailings  waste rock 


  55. S. Langley, S. Beauchemin and B. Tisch. Organic Covers on Tailings: Effects and Economic Returns. Presented at the 2018 workshop.

    KEYWORDS:  biosolids  Copper Cliff  dry cover  microbiology  mineralogy  Ontario  organic cover  reclamation  revegetation  tailings 


  56. M. O'Kane. Overview of INAP's Global Cover System Design Guidance Document. Presented at the 2019 workshop.

    KEYWORDS:  climate  dry cover  guidelines  hydrology  option analysis  reclamation 


  57. McLeod H. and B. Brown. Panel Discussion: What Design Features, Monitoring and Resources are Required to Maintain the Long-Term Performance of a Dry Cover?. Presented at the 2000 workshop.

    KEYWORDS:  dry cover  maintenance  risk assessment 


  58. Dave N.. Performance of Denison Mine Tailings Management Areas (TMAs) Fifteen Years Following Decommissioning. Presented at the 2011 workshop.

    KEYWORDS:  amend lime  barium  Denison  dry cover  elevated-watertable  Lower Williams Lake  NaOH  Stanrock  treatment  underwater  uranium 


  59. Maurice R. and M. Wiber. Poirier Mine: HDPE Liner Over Tailings, Performance After Four Years. Presented at the 2004 workshop.

    KEYWORDS:  consolidate  dry cover  geomembrane  impoundment  Poirier  spill  tailings 


  60. Wiber, M.. Poirier Reclamation Performance. Presented at the 2006 workshop.

    KEYWORDS:  chemistry  drainage  dry cover  geomembrane  Poirier  subsidence  tailings 


  61. M. Unger and R. Peterson. Post Closure Water Management at the Reclaimed Sullivan Mine. Presented at the 2018 workshop.

    KEYWORDS:  closure  collection  discharge  diversion  dry cover  flooded underground  HDS  maintenance  monitoring  soil barrier  Sullivan  sulphate reduction  tailings  treatment  waste rock 


  62. O'Kane M.. Practical Use of MEND Report 2.21.4: Design, Construction & Performance Monitoring of Cover Systems for Waste Rock and Tailings. Presented at the 2004 workshop.

    KEYWORDS:  dry cover  guidelines  model  monitoring 


  63. Smith L., L. MacPhie, D. Leahy, R. Maji and M. Wen. Prediction of Metal Loadings from Groundwater to Tidal Waters. Presented at the 2007 workshop.

    KEYWORDS:  dry cover  hydrology  Island Copper  loading  model  pit lake  prediction  waste rock 


  64. . Reclamation of the Manitou Tailings Site Using Neutral Tailings from Agnico-Eagle's Goldex Mine. Presented at the 2009 workshop.

    KEYWORDS:  abandoned  dry cover  elevated watertable  Goldex  hydrology  Manitou  predevelopment  prediction  tailings  tailings cover 


  65. J. Zhan. Richmond Hill Mine Heap Leach Pad Soil Cover System Evaluation. Presented at the 2018 workshop.

    KEYWORDS:  bentonite  dry cover  heap leach  liner  model  monitoring  Richmond Hill  store and release 


  66. T. Lépine . Rockfill Storage Facilities Management – Meadowbank Mine. Presented at the 2018 workshop.

    KEYWORDS:  climate change  construction material  dry cover  freezing  Meadowbank Mine  monitoring  operating  PAG  reclamation  rock cover  segregation  waste rock 


  67. Smith Q. and L. Lanteigne. Selection and Implementation of a Dry Cover System at Whistle Open Pit Mine. Presented at the 2004 workshop.

    KEYWORDS:  backfill  bentonite cover  dry cover  GCL  model  options analysis  pit  soil barrier  waste rock  Whistle 


  68. Hockley D., M. Rykaart and M. Noel. Soil Covers in the Canadian North. Presented at the 2004 workshop.

    KEYWORDS:  Arctic Gold and Silver  Beaverlodge  Colomac  Discovery  dry cover  elevated watertable  Faro  freezing  Giant  options analysis  rock cover  soil barrier  Venus 


  69. Phillip M. and D. Hockley. Sullivan Fatalities Incident: Technical Investigations and Findings Part 1. Presented at the 2007 workshop.

    KEYWORDS:  dry cover  failure  gas  health and safety  Sullivan  temperature  waste rock 


  70. Phillip M. and D. Hockley. Sullivan Fatalities Incident: Technical Investigations and Findings Part 2. Presented at the 2007 workshop.

    KEYWORDS:  dry cover  failure  gas  health and safety  model  Sullivan  temperature  waste rock 


  71. Unger M. and D. van Dieren. Sullivan Mine: Water Collection Closure Plan vs. 10 yrs Post-Closure Experience. Presented at the 2011 workshop.

    KEYWORDS:  backfill  closure  collection  dry cover  flooded underground  HDS  hydrology  soil barrier  Sullivan  treatment  water management 


  72. Rainey D.. Surface Water Management Challenges at the Grum Sulphide Cell (GSC) Cover, Faro Mine Complex, Yukon. Presented at the 2011 workshop.

    KEYWORDS:  dry cover  Faro  geomembrane  soil  waste rock  water management 


  73. Straub K. and M. Paradis. Tailings Storage Facility: Issues & Perspective of Filtered Tailings in an Arctic Environment Part 1. Presented at the 2012 workshop.

    KEYWORDS:  climate  dry cover  filter  freezing  Raglan  tailings 


  74. Straub K., J. Page, M. Paradis and D. Tremblay. Tailings Storage Facility: Issues & Perspective of Filtered Tailings in an Arctic Environment Part 2. Presented at the 2012 workshop.

    KEYWORDS:  dry cover  filter  freezing  Raglan  tailings  wind-erosion 


  75. Keller J., M. Milczarek and T.M. Yao. The Affect of Tailings Characteristics on Cover System Design. Presented at the 2009 workshop.

    KEYWORDS:  amend  biosolids  dry cover  revegatation  tailings 


  76. Germain D., N. Tassé and J. Cyr. The East-Sullivan Mine Site: Merging Prevention and Treatment of Acid Mine Drainage. Presented at the 2009 workshop.

    KEYWORDS:  abandoned  dry cover  East Sullivan  elevated watertable  organic cover  tailings  water management 

    Supporting Documents:

    1. The East-Sullivan Mine Site: Merging Prevention and Treatment of Acid Mine Drainage

  77. Paul M. and A. Kassahun. The German Wismut Environmental Remediation Programme - Status Achieved and Challenges Remaining. Presented at the 2013 workshop.

    KEYWORDS:  backfill  closure  dry cover  segregation  treatment  waste rock  Wismut 


  78. Lin D., B. Weeks, M. Aziz and W. Wilson. The Influence of Orientation and Aspect on Net Infiltration for the Soil Cover System at Equity Silver Mine. Presented at the 2009 workshop.

    KEYWORDS:  climate  dry cover  Equity  soil barrier  waste rock 


  79. Weeks B. and W. Wilson. The Influence of Spatial Energy Distribution on Cover Performance at the Equity Silver Mine. Presented at the 2004 workshop.

    KEYWORDS:  climate  dry cover  hydrology  model 


  80. Bradley, R.. The Rehabilitation of Ontario's Kam Kotia Mine. Presented at the 2006 workshop.

    KEYWORDS:  abandoned  consolidation  dry cover  financial security  GCL  Kam Kotia  lime  NaOH  rehabilitation  solid residue  tailings  treatment 


  81. Hamblin C.. The Rehabilitation of the Kam Kotia Mine Site: An Exercise in Cover Construction and Water Management. Presented at the 2009 workshop.

    KEYWORDS:  abandoned  consolidate  dry cover  GCL  Kam Kotia  soil barrier  tailings 


  82. Aubertin M.. The Use of CCBE to Control ARD: From Laboratory to Field Applications. Presented at the 2000 workshop.

    KEYWORDS:  dry cover  Manitou  soil cover  tailings cover 

    Supporting Documents:

    1. The Use of Hydraulic Breaks to Limit Desaturation of Inclined Capillary Barriers (In Proc. Of 53rd Canadian Geotechnical Conference, Montreal, 2000)
    2. The Use of Low Sulphide Tailings as the Moisture Retaining Layer in Engineered Cover Systems to Prevent AMD (In Proc. Of CSCE 2000 Annual Conference, London, Ontario, 2000)

  83. M. Julien, M. Roy, M. Drouin and R. Lacroix. Update as of 2017 on the Reclamation Works at the Manitou Site with the Goldex Mine Tailings. Presented at the 2018 workshop.

    KEYWORDS:  abandoned  diversion  dry cover  Goldex  Manitou  tailings  tailings cover 


  84. Guerin F., N. Banton, J. Mahoney and G. Newman. Uranium Tailings Managements at AREVA Resources Canada Inc. Part 2: The Kiggavik Project in Nunavut. Presented at the 2011 workshop.

    KEYWORDS:  amend barium  amend ferric  amend lime  backfill  climate change  dry cover  freezing  Kiggavik  pit  prediction  tailings  underwater  uranium 


  85. J. Zhan . Waste Rock Management at the Barrick Goldstrike Mine. Presented at the 2018 workshop.

    KEYWORDS:  backfill  climate  construction material  dry cover  encapsulation  Goldstrike  monitoring  PAG  segregation  store and release  waste rock 


  86. Hockley D.. Wismut Project - Update. Presented at the 1996 workshop.

    KEYWORDS:  amend lime  backfill  dry cover  prediction  waste rock  Wismut 


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