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 |
Mount Warner Volcanics/q / MIDDLE DEVONIAN to MIDDLE |
DEVONIAN |
Deposit Model |
V.M.S. - KUROKO STYLE (NORANDA, FELSIC TO |
INTERMED VMS TYPE) |
Mineralisation Age |
Comments |
Mount Morgan was the largest single lode gold orebody in Australia. The deposit occurs within a thick pile of acid pyroclastics of sodic |
rhyolite or dacite composition. |
The orebody is described as a pipe like body which transgresses the stratigraphic sequence. The two main types of ore recognised were |
massive pyrite-silica mineralisation (Main Pipe Orebody) and siliceous stringer mineralisation (Sugarloaf Orebody). |
The Main Pipe and Sugarloaf orebodies were recorded as being continuous with a gradation observed in the lower part of the Main Pipe |
from massive pyritic ore through semi-massive siliceous sulphides to siliceous stringer mineralisation. |
Web Page |