Queensland Minerals |
A Summary of Major Mineral Resources, Mines and Projects, 2nd Edition |
Tenure Type/Number |
Company Name/Surname |
SHARE |
Host Rock/Cover Sequences |
Structural Unit |
Formation Name/Age |
Deposit Model |
Mineralisation Age |
40AR/39Ar date on sericite alteration of ~308Ma |
(Perkins & Kennedy, 1998). The mineralisation |
developed from multiple events over the period |
320MA to 280Ma (Nethery and Barr, 1996). |
Comments |
This resource was delineated by Niugini Mining Ltd 2.6km north-west of the Red Dome pit and includes both a resource amenable to |
open pit extraction and the Mungana Deep resource which is below that amenable to open pit extraction. |
The project was considered only marginally economic by Niugini Mining Ltd who noted that complex metallurgy detracts from the |
marketability of the gold/copper and lead/zinc concentrate that would be produced. |
The Mungana deposit can be categorised as a low sulphidation porphyry Cu-Au skarn deposit developed within carbonate host rocks with |
attributes of a low sulphidation porphyry Cu-Au system developed within aluminosilicate host rocks. |
The mineralising system is highly telescoped and multiphased with seperate hydrothermal events spanning ~35My. The final overprinting |
hydrothermal phase can be categorised as a structurally controlled high sulphidation system (MSc M. Barr) |
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