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Blackham Resources Ltd.
Summary
| Project: | Matilda | |
|---|---|---|
| Deposit: | Williamson | |
| Location: | Australia | |
| Commodities: | Gold | |
| Date: | 3/7/2019 | |
| Report Code: | JORC | |
| Report Type: | Exploration/Drilling Update | |
| Project Stage: | Active Mining & Production | |
| Report details: | 7-3-2019: Blackham Resources Ltd. announces an Exploration/Drilling Update report for its Williamson deposit at the Matilda project. Drilling results incl. 29m @ 3.06g/t from 165m. Blackham Resources Limited (ASX: BLK) (Blackham or the Company) is pleased | |
| Resources: | Resources (Total): 96.5Mt @ 2.16g/t Au with 6.715Moz gold contained | |
| CP/QP: | [Overall Report]: Jonathan Lea, Cain Fogarty (Internal) | |
| ABSTRACT: | Blackham Resources Limited (ASX: BLK) (Blackham or the Company) is pleased to present drilling results from the free-milling Lake Way Williamson deposit, located 18km south of Blackham’s Wiluna gold plant. Blackham’s exploration strategy is designed to strengthen and lengthen the free-milling mine life by progressively converting the large free-milling 1.3Moz Resource base (22.8Mt @ 1.76g/t) to Reserves. Drilling from Dec’ 18 to Feb ‘19 comprised 46 RC holes (6,331m) and 9 DD holes (1,362m) aimed at confirming resources and testing for extensions of the cutback pit design. Assay results are presented for the first 39 holes, with remaining assays pending. Williamson pit cutback is scheduled to be mined from August 2019. Williamson is a wide, bulk tonnage free-milling orebody hosted in a stock-worked monzogranite. Williamson gold deposit occurs within a north-south trending monzogranite and enveloping shear zone, with broad geological similarities to well-known major deposits in the region, such as Gruyere, Thunderbox, King of the Hills and Edna May. The contacts of the Williamson monzogranite are strongly sheared and generally dip steeply east. Gold mineralisation is free-milling and occurs mainly with stockwork quartz veinlet arrays and disseminated pyrite within the monzogranite and along contacts with the dolerite and basalt host rocks. Higher-grade mineralisation and visible gold occur within grey sulphide-rich quartz veinlets along the sheared contacts of the monzogranite. Alteration ranges from weak carbonate-chlorite alteration distal to the main structure, to strong hematite-carbonate alteration associated with high-grade mineralisation. The deposits are covered by approximately 5m of lake sediments with mineralisation extending from this contact downwards. Previous mining on the Lake Way containing the Williamson Pit presented no significant challenges. Salt Lake Potash have committed to dewatering the water (brine) in the pit which has a Measured Resource of 32,000t of potash (see SO4 ASX announcement dated 6 March 2019) and will pay Blackham a royalty on the SOP production. | |
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