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A Summary of Major Mineral Resources, Mines and Projects, 2nd Edition |
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Major Mining Related Events |
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Operating Mine Life: 1995 to 2005 Mining by SMC Resources Ltd. Mine developments down dip have extended mine life |
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another year as at June 2004. Company has given notice that mine will close in 2005, mine closed ni 2005. |
OPEN CUT MINING
UNDERGROUND MINING METHODS
Cut and fill stoping method.
SHAFTS
ADITS
DECLINED SHAFTS/DRIVES
Spiral decline from base of open cut.
ML
1523
SMC GOLD LIMITED
100.00%
ML
1524
SMC GOLD LIMITED
100.00%
ML
1577
SMC GOLD LIMITED
100.00%
ML
1578
SMC GOLD LIMITED
100.00%
ML
6747
SMC GOLD LIMITED
100.00%
ML
10029
SMC GOLD LIMITED
100.00%
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Host Rock/Cover Sequences |
PAMA PROVINCE
Boatswain Granodiorite / SILURIAN to DEVONIAN
GENERAL ORE BODY MODEL
MESOTHERMAL VEINS/PIPE/STOCKWORK
DETAILED ORE BODY MODEL
MESOTHERMAL VEINS MAGMATIC-RELATED
ORE
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206Pb/204Pb model age of 380Ma reported by Carr |
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& others (1988) |
DEVONIAN
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Two main styles of mineralisation (Main Lode and Hanging Wall Lode Systems) occur at Hadleigh Castle. The Main Lode System |
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comprises a complex of sheared and tectonised siliceous sulphide rich veins occupying a set of generally south dipping structures. |
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Two main veins systems (01 and 02 Lodes) occur within the Main Lode System. The most northerly of these is the 01 Lode coincident |
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with a major south dipping shear. |
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The 01 Lode consists of fine grained, intensely silicified sulphide vein material immediately overlying an intensely clay altered sheared |
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and mylonitic breccia. |
The 02 Lode is characterised by poddy and disrupted sheared quartz + sulphide lenses generally less than 0.5m in width.
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The Hanging Wall Lode System consists of several veins systems developed in the reddened granite country rock occupying the footwall |
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of the deposit. |
These lodes display typical Charters Towers type characteristics with polyphase quartz and predominantly pyrite and sphalerite infill.