Thomson Resources Limited (ASX:TMZ) Drilling Intersects Three Large Polymetallic Mineralised Systems
Sydney, Sep 22, 2011 AEST (ABN Newswire) - Thomson Resources Limited (
ASX:TMZ) is currently drilling its high priority targets. Assay results have been received from 52 core samples from the company's first hole on the Cuttaburra B magnetic anomaly. The hole (CutBD02) intersected significant zinc, copper, lead, silver, gold, tin and tungsten in a stockwork-style system of veins of quartz, pyrrhotite and pyrite ranging from millimetre scale to 50cm wide. The veins are within a 300 metre zone of strong carbonate and silica alteration.
Two other prospects have been drilled with similar geology: Cuttaburra Ac and Cuttaburra A, 5km and 17km west, respectively. At Cuttaburra A, multiple instances of zinc and lead mineralisation (sphalerite and galena) have been logged from 135m depth to 614m depth. This 480m zone of alteration is characterised by silicification, carbonation, veining and brecciation indicating an extensive mineralised hydrothermal system. At Cuttaburra Ac, the alteration system, although extensive, was less intense. A significant zone of sphaleritegalena mineralisation was logged at 398m depth.
Thomson Resources is now focussed on detailed exploration within the anomalies to establish economic grades of mineralisation. Each of the magnetic anomalies covers around one square kilometre and several geophysical techniques are being trialled to help refine targeting. These methods include high resolution magnetics, electromagnetic (EM), induced polarisation (IP) and gravity, both on surface and downhole where possible.
At Cuttaburra B, recently acquired high resolution gravity shows a distinct positive anomaly, corresponding with the silicification already intersected. The magnetic anomaly has still not been satisfactorily explained by the drilling, as only minor magnetic pyrrhotite veining has so far been intersected. The IP data offers a target which is coincident with a magnetic low in the centre of the anomaly. This is possibly due to a pyritic mineralised zone and will be tested in the current phase of drilling. In this context it is notable that the lead-zinc mineralisation so far intersected is associated with pyrite rather than pyrrhotite.
Drilling has been slower than predicted due in part to multiple further rain delays. A total of 1,972m has been drilled to date in five holes - one at Cut B, two at Cut Ac (one abandoned before reaching basement), one at Cut C (abandoned due to excessive deviation) and one at Cut A. The current drilling program has now moved on to F3, another high priority bulls-eye magnetic target.
For the complete Thomson Resources announcement including figures, please view the following link:
http://media.abnnewswire.net/media/en/docs/69712-ASX-TMZ-649726.pdf
About Thomson Resources Ltd
Thomson Resources Ltd (ASX:TMZ) is an NSW active mineral explorer. Thomson has several tin projects (including an advanced project near Ardlethan), as well as gold, copper and zinc targets in a range of settings. Thomson has a good record of discovery, with multiple new Intrusion-Related Gold (gold with copper, lead, zinc, molybdenum, tungsten) systems discovered in the Thomson Fold Belt in the NW of the state.
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