Norwest’s has planned drilling to target the Reid’s Ridge trend at Warriedar for narrow, vein-hosted high-grade gold mineralisation. The objective is to advance towards determining the extent of gold mineralisation along this trend with the aim of obtaining sufficient drill data to estimate a maiden JORC-compliant mineral resource for the deposit.
Norwest has also planned drilling to test the gold mineralisation associated with the sheared mafic and BIF host rocks at Mount Laws.
In July 2018 gold assays from a surface sampling programme completed at the Mount Laws prospect returned a number of high-grade gold results including rock chips assaying up to 28.59 grams per tonne gold. A total of 104 rock chip and grab samples were collected along the Mount Laws trend and the sheared mafic and BIF horizons to the south of the main trend. Of the rock chips collected, 18 assayed greater than 0.1g/t Au including 2.52 g/t, 3.40 g/t, 22.95 g/t anf 28.59 g/t gold. (See AUZ: ASX Announcement, 2 August 2018, “IPO prospect Norwest zeroes in on high-grade copper and gold targets”)
The Mount Laws prospect has been subject to limited exploration with two phases of drilling, shallow RAB program and an RC drill program. The gold mineralisation is associated with Banded Iron Formation. A single RC drill hole completed by Aphex Minerals in 2015 did not intersect the interpreted geological horizon, leading them to conclude that the historic RAB and RC drilling were not transformed correctly from local grid.
Confirmation of historical drill collar locations was completed in July 2018 by the Company and indicates the 2015 drill hole by Aphex Minerals was 300m west of the targeted anomaly. Results from previous RAB and RC drill intersections by Homestake Ltd and Gold Partners NL include holes RC2 (9m @1.6g/t Au) and MLR5 (3m @2.0 g/t Au) which are on section and approximately 225m west along the mineralised trend of gold intercepts in holes MLR10 (4m @2.6g/t Au) and MLR11 (4m @2.3g/t Au). Norwest will target potential gold mineralisation down dip of this drilling as part of its upcoming Warriedar drilling campaign. (See AUZ:ASX Announcement, 2 August 2018, “IPO prospect Norwest zeroes in on high-grade copper and gold targets”).