Lefroy Exploration (ASX: LEX) has identified its “first-of-a-kind” alkalic gold-copper porphyry discovery at its flagship Burns Gold-Copper Project in Western Australia’s Eastern Goldfields region.
Lefroy is preparing to deliver the maiden Mineral Resource Estimate for Burns Central later this month.
Results from 67 Reverse Circulation (RC) holes drilled in the Burns Central resource programme confirmed a unique alkalic-porphyry-style mineral system with a strike length of at least 500m and vertical depth of at least 200m deep from surface, enriched in gold-copper- molybdenum-silver and cobalt.
Coupled with previous results from 11 holes drilled at prospects along strike within the 2.5km Burns Corridor, the data suggest an extensive mineral system with considerable potential for significant resource expansion.
Work to date, including research in partnership with UWA’s Centre for Exploration Targeting (CET), has consolidated Lefroy’s understanding and confidence in the 2.5km Burns Corridor as a significant camp-scale mineral system.
Analogous to Burns are the alkalic gold-copper porphyry deposits of the Cadia district in NSW and the British Columbia province in Canada. These deposits are highly economically attractive due to their higher gold content and geometry, which should enable cost-effective mining.
Key compelling characteristics for alkalic-porphyry-style mineralization at Burns Central include a lack of quartz veins, an oxidized alteration assemblage and metal zonation throughout the system.
“In the short time since Burns’ first spectacular discovery hole drilled in February 2021, Lefroy has conducted widescale exploration, research, data compilation and interpretation, which has consolidated the company’s understanding of the main Burns Central body as being an Archaean alkalic-porphyry-style mineral system of considerable scale that is completely unique to the Eastern Goldfields, and even Western Australia,” Managing Director, Wade Johnson, said.
“Exploration at Burns is still in its early days. Mineralization at Burns Central remains open in all directions. We have only focused on the shallow part of the system at Burns Central, where we are progressing a maiden Mineral Resource Estimate on track for delivery in April 2023.
“Compilation of our new Burns long-section reinforces that Burns Central is just the tip of the iceberg in context of the greater Burns Project area’s total endowment.
“Directly along strike of Burns Central are multiple anomalies in the 2.5km long Burns Corridor, where early drilling data signals a high probability of further gold and copper discoveries with direct linkage to mineralization at Burns Central.
“The quality of intercepts among the limited holes Lefroy has drilled at prospects along the Burns Corridor is nothing short of exceptional and provides significant exploration upside at the Burns Project.”
For further information please visit: https://www.lefroyex.com/
