Greatland Gold plc, a precious and base metals exploration and development company, has provided an update on Newcrest's drilling campaign at Greatland's Havieron deposit in the Paterson region of Western Australia. The company notes the release of an ASX announcement titled ‘Exploration Update’ by Newcrest Mining Ltd earlier today.
At Havieron, exploration activities have focused on an infill drilling programme to support the estimation of an initial inferred mineral resource, separately announced today, together with step out drilling to define the extents and growth potential of the Havieron mineralised system. Drilling since May 2019 has outlined an ovoid shaped zone of variable brecciation, alteration and sulphide mineralisation with dimensions of 650 m x 350 m x 1000 m deep, trending in a north west orientation. Breccia mineralisation was initially identified internal to the Crescent sulfide zone but most recently has also been recognised external to the Crescent sulfide zone on the east, north-west and south-east.
At this stage, exploration has identified four key target regions, which are:
- Further excellent drilling results: latest drilling results further improve the continuity of mineralisation and highlight the potential to expand mineralisation footprint at Havieron.
- South East Crescent and Breccia: latest drill results improve the continuity of higher-grade mineralisation within the South East Crescent and Breccia. Mineralisation is open at depth below the inferred mineral resource shell providing support for potential expansion at depth. Selected results include:
- HAD056W1: 205.8 m at 1.2 g/t gold (Au) and 0.24% copper (Cu) from 598 m, including 31.8 m at 3.1 g/t Au and 0.38% Cu from 722 m.
- HAD057W4: 100 m at 2.1 g/t Au and 0.05% Cu from 1029m, including 19.3 m at 6.2 g/t Au and 0.07% Cu from 1089.3 m.
- HAD097W2: 119.2 m at 2.7 g/t Au and 0.40% Cu from 937.8 m, including 2.8 m at 65 g/t Au and 0.46% Cu from 1010.6 m.
- Northern Breccia: results continue to support continuity of mineralisation and demonstrate opportunity to further expand the mineralisation footprint in the Northern Breccia region. Selected results include:
- HAD101: 92.5 m at 1.9 g/t Au and 0.06% Cu from 1296 m, including 15.6 m at 4.8 g/t Au and 0.02% Cu from 1350 m.
- HAD103: 90.6 m at 2.3 g/t Au and 0.18% Cu from 776.4 m, including 2.4 m at 67 g/t Au and 0.33% Cu from 822.7 m.
- HAD105: 298.8 m at 1.2 g/t Au and 0.11% Cu from 801.6 m, including 15.8 m at 3.5 g/t Au and 0.22% Cu from 821 m.
- 2021 growth drilling: growth drilling programme in calendar year 2021 will focus on the extension and definition of the South Eastern Crescent and Breccia, North West Crescent, Northern Breccia and Eastern Breccia zones outside the current inferred resource.
- Infill drilling programme: infill drilling is underway on the top 350 vertical m of the South Eastern Crescent within the existing resource outline with the aim to define Indicated resources to underpin the proposed pre-feasibility study.
- Early works commencement: new camp at Havieron, with accommodation for up to 230 people, is nearly complete, and construction of box cut and decline is expected to commence late 2020 or early 2021, subject to receipt of required approvals.
- Pre-feasibility study: a pre-feasibility study for Havieron, based on an indicated mineral resource estimate, is expected is to be delivered by late 2021.
- Potential commercial production: continuing to investigate potential to achieve commercial production within 2 – 3 years from commencement of decline.
Gervaise Heddle, CEO of Greatland Gold plc, commented: "We are very pleased by the latest set of excellent drilling results at Havieron, which further demonstrate the potential to expand the footprint of mineralisation at Havieron. We look forward to the growth drilling programme in 2021 and working to establish a full picture of Havieron's potential right across the four exploration target areas."
Read the article online at: https://www.globalminingreview.com/exploration-development/10122020/newcrest-reports-further-drilling-results-at-havieron/