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Griffin Mining Ltd.
Summary
| Project: | Caijiaying Mine | |
|---|---|---|
| Deposit: | Zone III | |
| Location: | China | |
| Commodities: | Zinc-Lead-Silver-Gold | |
| Date: | 4/3/2019 | |
| Report Code: | JORC | |
| Report Type: | Resource Estimation | |
| Project Stage: | Active Mining & Production | |
| Report details: | 3-4-2019: Griffin Mining Ltd. announces a Resource Estimation report for its Zone III deposit at the Caijiaying Mine project. Mineral resource update at project. Griffin Mining Ltd (Griffin) requested CSA Global Pty Ltd (CSA Global) to prepare an updated | |
| Resources: | (Resource, Total): 48.7Mt @ 4.2% Zn, 0.2% Pb, 21.4g/t Ag, 0.6g/t Au at Zone III | |
| CP/QP: | [Resources]: Steve Ros (CSA Global Pty Ltd.) | |
| ABSTRACT: | Griffin Mining Ltd (Griffin) requested CSA Global Pty Ltd (CSA Global) to prepare an updated Mineral Resource estimate as at December 31st, 2018 for Zone III of their Caijiaying Zinc-Gold deposit (Caijiaying), located in Hebei Province, People's Republic of China. The new Mineral Resource estimate totals 48.7 Mt at 4.2% Zn and 0.6 g/t Au, and contains approximately 2,051 kt of zinc metal and 885 koz of gold metal. This is an increase of 21.5 Mt, 807Kt contained zinc and 311 kOz of contained gold since the Zone III Mineral Resources were last reported on 31st December 2017. The updated Mineral Resources for Zone III of the Caijiaying deposit as at December 31st, 2018 are shown in Table 1. The Mineral Resource estimates are reported in accordance with The JORC Code (Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves. The JORC Code, 2012 Edition. Prepared by: The Joint Ore Reserves Committee of The Australasian Institute of Mining and Metallurgy, Australian Institute of Geoscientists and Minerals Council of Australia (JORC)). The Mineral Resource estimate is based on 3,754 underground diamond drill holes and 169 surface drill holes. 2,016 new underground diamond drill holes have been completed since the last Mineral Resource estimate. Mineralisation wireframes were interpreted by CSA Global in consultation with Griffin geologists using a nominal 1% Zn cut-off grade ("Zinc Domains") or a nominal 0.5 g/t Au cut-off grade ("Gold Domains"). The Zinc and Gold Domains are reported separately in Table 1. The mineralisation wireframes were used to domain samples, and to then constrain estimation within a 3D block model. Grade interpolation was carried out by ordinary kriging methods. The Mineral Resource has been depleted using a three-dimensional survey "As Built" wireframe which represents the mined-out voids as at 31st December 2018. The Mineral Resource estimate also includes 19,039 t of surface stockpiles. The stockpile estimates are based on actual survey and mine production data. | |
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