Geochemistry

Author(s): 
Osvaldo Aduvire
Category: 
Water Management

Characterization of acid mine water by acidity helps us explore possibilities for recovering by-products with economic value and choosing the most suitable and efficient treatment system possible. This is because characterization by acidity allows us to ascertain not only protonic acidity, but Read more... about Acid Mine Water Treatment With Recovery Of By-Products Of Economic Value

Author(s): 
Chris Kennedy, Stephen Day, C.D. Anglin
Category: 
Mine Waste

To support remedial decisions for the Tailings Storage Facility breach at the Mount Polley Mine (MPM), a geochemical characterization program assessing the metal leaching and acid rock drainage potential of the tailings and other materials released into Polley Lake, Hazeltine Creek, and Quesnel Read more... about Geochemistry of Tailings from the Mount Polley Mine, British Columbia

Author(s): 
Alex Watson, Claire Linklater and John Chapman
Category: 
Geochemistry, Water Management

Closure options under consideration at some sites include backfilling mined-out pits with waste rock. Backfill may include mineralised and non-mineralised waste rock. Following groundwater rebound, flow-through conditions may develop in the pit post- closure. The backfill located in the Read more... about Backfilled Pits – Laboratory-scale Tests for Assessing Impacts on Groundwater Quality

Author(s): 
Danny Kentwell, Andrew Garvie and Claire Linklater
Category: 
Geochemistry

Various Australian and international regulatory bodies (Environmental Protection Authority, 2015) require an early assessment of the geochemistry of waste rock. This usually includes estimates of the locations and volumes of potentially acid-forming (PAF) materials and requires sampling of the Read more... about Geostatistics and Sample Numbers from an Acid and Metalliferous Drainage Perspective

Author(s): 
Mathieu Lacorde, Cherie Leeden and Regina Molloy
Category: 
Geology, Geochemistry

Over 150 sediment-hosted Pb-Zn-Cu and Ba occurrences are identified in Gabon along the contact between the Mesozoic to recent sedimentary Coastal Basin and the Archaean to Paleoproterozoic Kimezian basement of the West Congo Belt [1].  These occurrences were first described in the 1930s and Read more... about Geochemical characterisation of Pb‐Zn‐Cu and Ba mineralisation in the Lower Cretaceous sediments of the Coastal Basin, Gabon, Central Africa

Author(s): 
Jeff Parshley, Rob Bowell
Category: 
Geochemistry
 
Surface water bodies are expected to form in several pits at the Getchell Open Pit Mine after mining has ceased due to inflowing surface and ground water. Predicting the long-term geochemical behavior of the pit water is important in assessing potential environmental effects.
Author(s): 
Rob J.Bowell, A.Barnes, J.Grogan, Matthew Dey
Category: 
Geochemistry

Palaeo-river channels containing calcrete are important potential hosts for economic uranium mineralization in many parts of southern Africa particularly Namibia. The main feature of these deposits are the dominance of the mineral Carnotite [K2(UO2)2(VO4)2.3(H2O)] as the main uranium host in Read more... about Geochemical controls on uranium precipitation in calcrete palaeochannel deposits of Namibia

Author(s): 
Rob Bowell, Jeff Parshley, G. McClelland, B. Upton, and G. Zhan
Category: 
Project Evaluation

This paper presents a summary of field and laboratory studies conducted to determine the need and extent of rinsing requirements for a spent oxide gold heap. The testwork utilized the Gold Acres Heap in Nevada. Monitoring data was reviewed to examine the geochemical processes occurring within Read more... about Geochemical evaluation of heap rinsing of the Gold Acres Heap, Cortez joint venture, Nevada

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