Dictionnaire
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Acid mine drainage |
Acidic run-off water from mine waste dumps and mill tailings ponds containing sulphide minerals.
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Drainage acide |
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| Alteration |
Any physical or chemical change in a rock or mineral subsequent to its formation. Milder and more localized than metamorphism. |
Altération |
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| Amorphous |
A term applied to rocks or minerals that possess no definite crystal structure or form, such as amorphous carbon. |
Amorphe |
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