Accrington Cu-Zn Skarn
The Accrington is a very large skarn/ carbonate replacement mineralized system which is host to numerous small scale historical workings and occurrences across an area of approximately 1.8km by 1.2km. Historical mining focused on high grade zinc-lead-silver-copper-gold veins and copper-zinc skarn. Both prograde and retrograde mineralisation and alteration assemblages exist and largely overprint each other. Prograde skarn consists of magnetite-pyroxene skarn containing significant amounts of copper and zinc. Retrograde skarn has a larger variety of metals as sulphides, including very good gold and silver grades next to copper, lead, zinc and tungsten.
Features of the Accrington prospect include:
- skarn alteration and mineralisation across an area of approximately 4km long by up to 2km wide, with widespread outcropping mineralisation and historical small workings within the central 1.8km by 1.2km Accrington prospect;
- wide areas of high-temperature garnet-pyroxene and magnetite skarn at Accrington associated with copper-zinc mineralisation;
- historical drilling which intersected thick zones of copper-zinc mineralisation; and
- wide areas of retrograde, lower temperature zinc anomalism and mineralisation in the western areas of Accrington (Washington claims) which are interpreted to represent the distal expression of higher grade copper-zinc mineralisation at depth; and
- the presence of intrusive porphyry and aplitic dykes, which are common over Accrington, some mineralised with copper-gold and related to either the Cactus Canyon prospect or another possible mineralised porphyry intrusion.
The Company believes that the widespread mineralisation at surface, including wide intercepts of copper-zinc mineralisation in historic drilling, outcrops of further untested copper-zinc skarn and the scale of the Accrington skarn (1.8km by 1.2km), present strong evidence of the potential for the discovery of a large tonnage deposit at the prospect.
For Accrington images click here
Horn Zn-Pb-Ag Skarn
The Horn prospect centres on the historic high grade Horn Silver Mine where historical production amounted to 18,159,901 ounces of silver and 178,321 tonnes of lead from 934,724 tonnes of crude ore across several decades of production until the 1960’s. Miners focused on lead-silver production, despite the ore-body hosting zinc rich ore.
Subsequent drilling has intersected areas of high grade zinc within and below the mine, with underground channel sampling by several explorers also delineating further areas of high grade zinc. Work to date has not been sufficient to establish any resource.
The known lead-silver-zinc mineralisation is located within Palaeozoic age brecciated carbonate units (bedded silicified limestones, skarns, epidote-rich hornfels and marbles) within, and in the immediate vicinity of, the of the steeply north-south striking Horn Silver Fault.
The Horn Silver deposit occurs as a tabular, near vertical to steeply west dipping, breccia-hosted zone, which prior to mining indicated had a north-south strike length of some 215m, a vertical extent of about 290m and east-west widths typically ranging from 9-18m with a maximum recorded width of up to 55m
The Company believes that the Horn prospect has potential for a medium sized resource of high grade zinc-lead-silver.
For Horn Mine images click here