Gateway Mining (ASX:GML) has extended the defined gold mineralisation at its Cowza prospect by 1km to 3.5km of continuous strike following further aircore drilling at the Yandal Gold Project in Western Australia.
The latest step-out drilling returned gold mineralisation on every drill line tested along the Celia Shear structure. The trend remains open in all directions.
Results include 29m @ 1.8 grams per tonne gold (g/t Au) from 72m to end of hole in CSAC0019, including 4m @ 11.1g/t Au.
Other intercepts comprise 8m @ 3.1g/t Au from 76m in CSAC0036 and 4m @ 3.3g/t Au from 80m in CSAC0039. Hole CSAC0009 returned 15m @ 0.7g/t Au from 72m to end of hole, including 4m @ 1.2g/t Au.
The mineralisation occurs along the contact between mafic and intermediate volcanic rocks within a broad demagnetised zone. Gateway reports persistent shearing, silica-carbonate alteration, and quartz veining along the contact.
Aircore drilling completed over a further 1km to the north has encountered similar shearing, veining, and alteration on every drill line. Assays from these holes remain pending.
CEO Richard Pugh says the results have expanded Cowza beyond the 2.5km mineralised footprint reported the previous week.
“The rapid growth of the Cowza system continues to exceed expectations, with gold mineralisation now defined over an impressive ~3.5km strike length and remaining open in multiple directions,” Pugh says.
“What is particularly encouraging is the consistency of the geological signature across the entire trend. Drilling completed beyond the currently assayed areas has intersected the same favourable structures as well as alteration associated with gold mineralisation.”
Gateway plans to mobilise a second reverse circulation (RC) drill rig this week to test the scale and continuity of mineralisation in fresh rock at Cowza. RC drilling is already underway at the nearby Haflinger prospect.
Write to France Pinzon at Mining.com.au
Images: Gateway Mining
