An investigation into the primary and secondary causes of and controls on acid mine drainage at Echo Mine near Reefton, New Zealand
Acid mine drainage (AMD) is one of the most important environmental issue arising from mining practices worldwide. It is caused by the disturbance, and then chemical weathering of pyrite rich rocks during mining operations. AMD is characterised by low pH (2-3) and increased metal concentrations, occasionally reaching toxic levels for humans. Extensive research has been undertaken world wide to prevent and combat AMD through proper identification of pyrite formation, oxidation, chemical weathering of other phases, and subsequent discharge chemistry. In New Zealand, especially on the West Coast of the South Island, a rich history of coal mining since the 1800s has caused environmental issues arising from AMD that have been studied by many authors, leading to remediation and prevention plans, and a better understanding of the constraints on AMD production. Echo mine is a recently active coal mine that as of the end of this thesis, has moved into a
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Location (WKT, WGS84):
MULTIPOLYGON (((171.939600371393 -42.145297664106,171.980022840865 -42.1454854474944,171.979792325286 -42.1740213276647,171.939351690887 -42.1738332591177,171.939600371393 -42.145297664106)))
Partridge, Taliesen (Tal), “An investigation into the primary and secondary causes of and controls on acid mine drainage at Echo Mine near Reefton, New Zealand,” Otago Geology Theses, accessed April 27, 2018, http://theses.otagogeology.org.nz/items/show/638.