Small-scale historical gold mining activities have occurred in both project areas, which are 20-30km northwest of Thalanga, with high-grade gold mineralisation (hosted in mesothermal quartz veins) at multiple locations in the project areas.
Exploration by previous tenement holders confirmed the presence of high-grade gold mineralisation in multiple identified vein systems at the
China
Toomba Exploration and Mining History
Operations at the
Toomba Project Area Geology and Mineralisation
Previous rock chip sampling by Mt
The Central Vein is a zone of veining and veinlets seen in outcrop, float and historic exploration trenches for more than 400m with a further occurrence 800m to the north. Rock and chip sampling returned assay values of up to 9.65g/t Au.
The Lady
China
Three RC holes (PC005, PC006 and PC007) tested the northern portion of the Toomba Old Workings. PC005 was designed to test the structure beneath the northern workings. PC005 intersected a quartz vein at 43 metres down hole, with a down hole width of approximately 1.3m. The intersection returned an excellent assay result of 2m @ 26.5 g/t Au, 43 g/t Ag, 0.4% Cu, 0.9% Pb and 1.8% Zn.
PC0006 was drilled 50 metres to the south (from PC005) along strike and under more old workings and an outcropping zone of veinlets hosted in sericite altered granite. PC006 intersected a 5m wide zone of quartz veining from 47m to 52m downhole. The maximum gold assay was 1m @ 0.27 g/t Au and the main vein zone assay up to 0.19 g/t Au.
PC007 was drilled a further 116 metres south along strike under old workings. PC007 intersected a solid zone of vein quartz from 37m to 42m downhole. The main vein assayed to only 0.4 g/t Au and the best result came from the hanging wall veining (0.55 g/t Au).
The CYC drilling confirmed the presence of high-grade gold mineralisation at in the northern section of the Toomba Old Workings in a laterally extensive mesothermal vein system. This drilling has not been followed up and the intersection in PC005 is still open down dip and to the north.
Don Project Exploration and Mining History
Historical mining activity in the
Don Project Area Geology and Mineralisation
Gold mineralisation at the Don deposit is hosted by a 0.4m to 2.0m thick quartz vein that extends over 250m, striking NNW with an average dip of 75-degree to the WSW. Several small pits expose an en echelon array of smaller quartz veins on the eastern side of the main vein, in an overall N-S zone. Historical samples of mineralised quartz vein material taken from mullock heaps contained between 1 to 3% galena-chalcopyrite-pyrite-bornite and returned assays up to 54.7 g/t Au.
The Don SW workings, about 600m SW of the Don Workings, extend over a N-S trend of approximately 400m. The main mineralised quartz vein observed at surface, extends over 270m, is 0.4-1.0m wide, strikes 345-degree and dips WSW at 70-degree to 80-degree. At the northern end of the reef, a set of shallow pits trace another quartz vein with a strike of 350-degree over a length of 180 metres. Historical sampling of mineralised quartz taken from mullock heaps contained 3-6% galena-chalcopyrite-pyrite-bornite, returning assays of up to 9.6 g/t Au. At least five percussion holes were drilled by
Next Steps
Red River has commenced exploration activities at Toomba (mapping, sampling) to be followed up by trenching to better define the extent of the vein systems prior to drilling. Upon grant of the Don tenement (expected shortly), Red River will commence similar activities.
Contact:
Mel Palancian
Tel: +61 3 9017 5380
Email: mpalancian@redriverresources.com.au
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