For thousands of other reports visit RSC's Mineral Intellingence Map
St Barbara Ltd.
Summary
| Project: | Simberi | |
|---|---|---|
| Deposit: | Simberi Oxide, Simberi Sulphide | |
| Location: | Papua New Guinea | |
| Commodities: | Gold | |
| Date: | 8/23/2017 | |
| Report Code: | JORC | |
| Report Type: | Resource Estimation | |
| Project Stage: | Active Mining & Production | |
| Report details: | 23-8-2017: St Barbara Ltd. announces a Resource Estimation report for its Simberi Oxide, Simberi Sulphide deposit at the Simberi project. Annual update of mineral resources and ore reserves. Ore Reserves and Mineral Resources Statements as at 30 June 2017 | |
| Resources: | (Reserve, P+P): 23.444Mt @ 2.5g/t Au for 1.873Moz Au contained at Simberi | |
| CP/QP: | [Resources]: Jane Bateman, Robert Love (Internal) | |
| ABSTRACT: | Ore Reserves and Mineral Resources Statements as at 30 June 2017. Successful drilling program extended Gwalia Ore Reserves to 2,140 metres below surface (mbs) and Mineral Resources to 2,200 mbs. Additional reserves at Simberi offset depletion allowing mine life to extend a further year Group Ore Reserves increased from 4.01 Moz of contained gold to 4.31 Moz, net after depletion. The Company’s Ore Reserves and Mineral Resources have increased above net depletion primarily as a consequence of resource extension drilling at Gwalia (Figures 2 & 3). Extension drilling is continuing and the additional reserves will be included in an updated Life of Mine plan that is anticipated to increase mine life past 2024. The outcome of this planning work will be available in FY18 Q2. At Simberi, Ore Reserves have reduced marginally after mining depletion, however, a reduction in operating costs benefitted reserve estimation for this cycle. The additional oxide reserves allow Simberi’s oxide operation to extend a further year. A review of the Simberi geology model has resulted in an overall reduction of Mineral Resources for this operation, but this has largely impacted Inferred sulphide resources. A revised Mineral Resource estimate was completed for Simberi Oxide using improved geological models that incorporated grade control drilling and mapping data. The previous publicly reported Measured, Indicated and Inferred Oxide Mineral Resource Estimate reported at 30 June 2016 was 29,428 kt @ 1.0 g/t Au containing 951 koz of gold. This has decreased by 207 koz of gold to 21,288 kt @ 1.1 g/t Au containing 744 koz of gold. Variances between the two estimates are primarily due to depletion through mining and changes to geological models. | |
Full Report
opaxe is a smart software platform that reconfigures and redistributes information and produces business insights to help mining professionals and investors make better decisions. We utilise technology and machine learning for data collection and human intelligence for the value-added services.
Full Report