Slide 1Potential acid sulfate soil Soils which become acid when drained due to oxidation of pyrite (FeS 2 ) WRB Potential acid sulfate soil contains sulfidic soil material…

Slide 1GEOCHEMICAL CONSEQUENCES OF DIFFERENTIAL SETTLING OF GOLD TAILINGS Barbara L. Sherriff, Nikolay Sidenko University of Manitoba Canada Slide 2 X Central Manitoba Central…

Journal of Geochemical Exploration 93 (2007) 47 – 65 www.elsevier.com/locate/jgeoexp The geochemistry of gossans associated with Sarcheshmeh porphyry copper deposit, Rafsanjan,…

Slide 1GEOCHEMISTRY AND ISOTOPIC CHEMISTRY OF ACID ROCK DRAINAGE AND THE EVALUATION OF PYRITE OXIDATION RATE AT MINE DOYON, QUÉBEC, CANADA Ondra Sracek 1, René Lefebvre…

Slide 1Mining Contamination in the Rocky Mountains By Kaley Williams Slide 2 Mining AMD (Acid Mine Drainage) Definition and Importance Case Study- Summitville CO Ouray Colorado,…

Slide 12-5. ENVIRONMENTAL PROBLEMS DUE TO MINING 2-5-1. Types of Environmental Problems Health hazard due to increased particulates and gases Safety issues (Accidents) during…

Slide 1 Rock Cycle Slide 2 Sedimentary Processes 1) Weathering & erosion 2) Transport & 3) deposition 4) Lithification Slide 3 Weathering: decomposition and disintegration…

Slide 1 Introduction to ACID ROCK DRAINAGE Oxidation of sulphides exposed to water and oxygen in waste rock piles or mine workings Oxidation of pyrite by oxygen FeS 2 + 7/2…

SULFUR BIOGEOCHEMISTRY: KINETICS OF INTERMEDIATE SULFUR SPECIES REACTIONS IN THE ENVIRONMENT Vermont Copperbelt Besshi-type massive sulfide deposits Key Units: Giles Mountain…

Slide 1 Minerals associated with economically recoverable metals Elemental forms Sulfides Oxides Carbonates Sulfate salt Elemental copper Chalcocite, Cu2S Chalcanthite, CuSO4*5H2O…