|
A Summary of Major Mineral Resources, Mines and Projects, 2nd Edition |
ML
1546
LEYSHON RESOURCES LIMITED
100.00%
ML
10144
LEYSHON RESOURCES LIMITED
100.00%
ML
10173
LEYSHON RESOURCES LIMITED
100.00%
|
Host Rock/Cover Sequences |
KENNEDY PROVINCE
Mount Leyshon Complex / CARBONIFEROUS to PERMIAN
GENERAL ORE BODY MODEL
DIATREME OR PYROCLASTIC RELATED DEPOSITS
DETAILED ORE BODY MODEL
|
PORPHYRY-RELATED AURIFEROUS SUBVOLCANIC |
|
BRECCIAS & VEINS |
|
Stage 1 (Early Pyrite) mineralisation associated with |
|
porphyry phase 1 |
EARLY PERMIAN
ORE
|
Stage 2 mineralisation within the Mt Leyshon |
|
breccia |
EARLY PERMIAN
ORE
|
Late stage mineralisation associated with trachyte |
|
dykes and milled breccia. 206Pb/204Pb model age |
|
of 280 Ma (Carr & others, 1988) and 40Ar/39Ar |
|
date on sericite alteration of ~290 Ma (Perkins & |
|
Kennedy, 1998). |
EARLY PERMIAN
|
Mineralisation is hosted within the Mount Leyshon diatreme which straddles the boundary between Cambro-Ordovician meta |
|
sedimentary and volcanic rocks of the Seventy Mile Range Group and Ordovician-Devonian I-type granitoids of the Ravenswood |
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Batholith. |
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The majority of the gold mineralisation occurs within the Mount Leyshon Breccia. Replacement, cavity fill, disseminated and vein styles |
|
of mineralisation have been recorded. |