Orthomagmatic quartz and post-magmatic carbonate veins in a reported porphyry copper deposit, Andean Intrusive Suite, Livingston Island, South Shetland Islands

• Published in: Mineralium Deposita
• Main Authors: Armstrong, D. C., Willan, R. C. R.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Springer 1996
• Subjects: South Shetland Islands; Livingston Island
• Online Access: http://nora.nerc.ac.uk/id/eprint/514795/; https://doi.org/10.1007/BF02280793

A previously reported porphyry Cu + Mo deposit in an Eocene pluton within the South Shetland Island magmatic arc has been re-interpreted as three distinct hydrothermal assemblages. The oldest assemblage (1) exsolved under confinement from the deep (∼6 km?) cooling magma whereas assemblages (2) and (...