Results from recent RC drill work by mineral explorer Aurumin indicate a continuity of gold between two deposits at the company’s 784,000-ounce Central Sandstone gold project 130km west of Leinster in Western Australia. The RC program included nine holes for 1245m drilled and returned significant assays including 7m going 5.78 grams per tonne gold from 137m downhole and 8m at 4.99 g/t gold from 80m.
The campaign was designed to test for geological linkages between the project’s Shillington and Two Mile Hill deposits and for the potential for higher-grade mineralisation along a structurally controlled corridor to improve and extend the existing Shillington resource.
The bulk of Central Sandstone’s gold resource comes from the Two Mile Hill underground resource of 500,000 ounces with Shillington making the second-largest contribution of a further 66,000 ounces.
In addition to Two Mile Hill and Shillington, the project plays host to nine other open-pit resources giving Aurumin an abundance of gold bases to build from.
Shillington is on the surface. about 400m to the south of the open-pit segment of Two Mile Hill and is associated with a unit of rocks known as the Shillington banded iron formation package.
The package dips down into the earth in a north-east direction before being breached by the tonalite rock unit that hosts Two Mile Hill at a depth beyond 200m.
Aurumin’s latest holes have successfully extended mineralisation at Shillington in addition to filling in more of the gaps along the package, between the open-pit resource and a defined-high grade pod of mineralisation next to the tonalite-package intersection.
This high-grade pod hosts an impressive array of hits including 18.5m at 6.7 g/t and 29 at 15 g/t gold.
Aurumin Managing Director, Brad Valiukas said: “These are some great results from Shillington, indicating a structurally related higher-grade corridor and continuity of grade connecting the Two Mile Hill deposit.”
After completing drill holes at both Two Mile Hill and Shillington, the company is set to model both deposits as a single geological complex before it looks to table an updated resource estimate.
Aurumin recently drilled through the tonalite-hosted Two Mile Hill and last month announced an eye-popping 344m hit going 1.29 g/t gold from 243.5m from its first drill hole.
This month results from its second hole came back showing a similar calibre with 224m at 1.5 g/t gold from 269m.
With results from two more diamond holes through the tonalite yet to come, it appears Aurumin has already gathered a solid stack of assays to feed into its resource update.
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By Matt Birney
