Bourkes Find Project
Bourkes Find lies 15km SE of Meekatharra township and comprises five mining leases covering an area of ~39km2. The area is mostly under cover. Historic workings and shafts up to 25-30m deep are oriented about N-S in the northern part of the tenement area. Production from the area during the period 1910-1917 totalled 1006.78 oz of gold. Bourkes Find is a vein-hosted gold target.
Geology over the area includes strongly magnetic banded-iron formation, mafic volcanics, ultramafic rocks and amphibolites. Old shafts and workings locate within mafic volcanic rocks and many lithological contacts are fault bounded. A major structure along the eastern part of the area marks a major truncation between probable folded banded-iron formation and felsic volcanics, and N-S trending ultramafic rocks. The area is cut by numerous high angle NE-trending faults.
Gold mineralisation is proximal to an interpreted Archaean structure, subsequently overprinted by a Proterozoic dyke. The western extension of these dykes transects the Yaloginda goldfield to the west.
Gold anomalies at four prospects in the Bourkes Find tenements are linked structurally and stratigraphically. Gold mineralisation is defined as a north-south corridor that bifurcates at Bourkes Reward South prospect into a western arm on which Bourkes Reward is located and an eastern arm on which Bourkes Reward East and Golden Bracelet prospects are located.
The line of workings at Bourkes Reward was drilled with 20m drill spacing on 40m line spacing using RAB and RC in 1987 and 1993. Anomalous results over a strike of 100m include: 2m @ 20.83m, 4m @ 3.17, 8m @ 1.0, 2m @ 6.4, 2m @ 6.1, 3m @ 1.37, 5m @ 2.88, 7m @ 15.7, 4m @ 1.37 and 3m @ 4.88g/t Au. RAB drilling was limited to 40m depth.
Drilling defines mineralisation as striking 020º, dipping 40ºE and appears open to the north and south. Anomalous RAB results include 6m @ 2.36, 6m @ 1.59, 2m @ 6.68g/t Au at Bourkes Reward South and 4m @ 1.57, 4m @ 1.22, 6m @ 1.91g/t Au at Bourkes Reward East. These results are tabled below.
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| Hole No. | |||||||||
| BF12 | |||||||||
| BF13 | |||||||||
| BF14 | |||||||||
| BF15 | |||||||||
| BF16 | |||||||||
| RCBF15 | |||||||||
| RCBF19 | |||||||||
| RCBF23 | |||||||||
| RCBF24 | |||||||||
| RCBF25 | |||||||||
| RCBF27 | |||||||||
| RCBF28 | |||||||||
| RCBF29 | |||||||||
| RCBF76 | |||||||||
| BFC13 | |||||||||
| BFC14 | |||||||||
| BFC18 | |||||||||
| BFC20 | |||||||||
| BFC25 | |||||||||
| BFC28 | |||||||||
| BFC33 | |||||||||
| BFC50 | |||||||||
| BFC70 | |||||||||
| BFC76 | |||||||||
| RAB1 | |||||||||
| RAB14 | |||||||||
| BFR28 | |||||||||
| BFR29 | |||||||||
| BFR37 | |||||||||
| BFR41 | |||||||||
| BFR42 | |||||||||
| BFR44 | |||||||||
| BFR46 | |||||||||
| BFR58 | |||||||||
| BFR63 | |||||||||
| BFR65 | |||||||||
| GBR24 | |||||||||
| GBR35 | |||||||||
| GBR46 |