Impact begins to reveal Commonwealth potential

THE DRILL SERGEANT: Impact Minerals (ASX: IPT) is excited by new exploration results it has received from the company’s 100 per cent-owned Commonwealth project near Orange in New South Wales.

Impact claims the results show the known high-grade gold-silver base metal mineralisation at the Main Shaft, Commonwealth South and Silica Hill prospects may be part of a much larger mineralised system, which the company considers to have been, up until now, very poorly explored.

The system covers at least several square kilometres and is thought by Impact to possibly be related to a number of porphyry intrusions buried at varying depths below surface (blind) that could be prospective for bulk tonnage gold-copper deposits.

Impact suggested they could be similar to the Cadia-Ridgeway deposits that contain over 25 million ounces of gold and 5 million tonnes of copper located 100 km to the south of Commonwealth in the same mineralised belt.

Three areas that may host a buried porphyry intrusion at depth have been identified: the previously known Silica Hill prospect and Main Shaft-Commonwealth South prospects and a newly-identified area called the Doughnut, centred 1.5km north of Main Shaft and bound to the west by the Coronation Trend.

 

Simplified geological model of the elements of a porphyry-epithermal
mineralised system and the relative positions in that system of Impact’s
prospects. Source: Company announcement

 

“This new interpretation has important implications for further exploration at Commonwealth and in particular the search for the presence of buried porphyry intrusions that may host bulk tonnage copper-gold mineralisation similar to Cadia-Ridgeway,” Impact Minerals said in its ASX announcement.

“Porphyry copper-gold, skarn and high sulphidation epithermal deposits are commonly related in major porphyry copper provinces around the world…and exploration success relies on an understanding of where any particular mineralisation sits within this system.”

Impact has a drill program planned to test a number of the soil, IP and magnetic anomalies identified at Main Shaft, Commonwealth South and Silica Hill together with other areas set to commence in mid to late July.

Email: info@impactminerals.com.au

Website: www.impactminerals.com.au