Semi Conformable Alteration and Volcanogenic Massive Sulfide Deposits
- Conference
- New Zealand Geothermal Workshop
- Year
- 1992
- Session
- Epithermal Mineralisation
- Language
- English
Full text
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Abstract
Broad zones of semi-conformablealteration in ancient volcanic terranes define the presence of extensive, submarine hydrothermal systems. The configuration and compositionof these zones allows the mineral explorationist to determine the presence of shallow, low temperature hydrothermalsystems inwhich very little base metal mineralization is generated, or of stacked, semi-conformablealterationzones defining a deep, penetrating hydrothermal system in which base metal-richfluids were generated, ponded and debouched to form massive sulphide deposits on the sea floor.
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