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Great Boulder Resources Ltd.
Summary
| Project: | Yamarna JV | |
|---|---|---|
| Deposit: | Eastern Mafic, Mt Venn | |
| Location: | Australia | |
| Commodities: | Copper-Nickel-Cobalt-Gold-Silver | |
| Date: | 10/12/2018 | |
| Report Code: | JORC | |
| Report Type: | Exploration/Drilling Update | |
| Project Stage: | Pursuing Resources Definition | |
| Report details: | 12-10-2018: Great Boulder Resources Ltd. announces an Exploration/Drilling Update report for its Eastern Mafic, Mt Venn deposit at the Yamarna JV project. Drilling results incl. 43.0m @ 0.4% Cu, 0.2% Ni, 0.06% Co from 141.0m. Great Boulder Resources (ASX: | |
| Resources: | x | |
| CP/QP: | [Overall Report]: Stefan Murphy (Internal) | |
| ABSTRACT: | Great Boulder Resources (ASX:GBR) is pleased to announce that the latest assays from the Eastern Mafic deposit in WA show that the Company is closing in on the higher-grade zone of nickel mineralisation. Three distinct sulphide phases have been identified at the Eastern Mafic, with high-tenor nickel sulphide found along the feeder zone and neck of the intrusion at Zermatt considered the most prospective for high-grade nickel sulphide mineralisation (Figure 1). This supports Great Boulder’s view that the Eastern Mafic is closer to the source of highgrade nickel mineralisation. Mt Venn only has a single phase of low-tenor nickel (Figure 2), however the deposit appears to be more copper and cobalt rich than the Eastern Mafic. Around the edge and along structures through the Eastern Mafic complex, late-stage granite intrudes and alters the primary sulphide into barren pyrite/pyrrhotite and magnetite. These areas produce very strong EM responses, however there is little nickel, cobalt or copper of economic interest and they are considered a low priority for follow-up drilling. Great Boulder Managing Director Stefan Murphy said the results were beginning to deliver a clear message about the nature of the mineralized system at the Eastern Mafic and Mt Venn. “There is now a pattern emerging which supports our geological interpretation as to how the sulphide system was formed and where the higher grades and wider mineralisation may be found,” Mr Murphy said. “Once all assays are received we will be able to target the prospective rocks that host the higher tenor nickel and look for the base of these intrusions where massive sulphide typically accumulates.” | |
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