GREAT BOULDER RESOURCES LIMITED Fifteen RC holes were drilled for a total of 1,448m in late November to test primary gold mineralisation beneath recent air-core (AC) drilling intersections. Two holes were added to the program to target a lead-zinc prospect west of Blue Poles.
The program identified primary mineralisation over a 700m strike length, including broad zones of up to 52m @ 1.02g/t Au from 28m to the end of hole in 20BPRC006.
Lower grade intersections over significant widths include 28m @ 0.61g/t Au from 32m in 20BPRC010, 29m @ 0.66g/t Au from 68m in 20BPRC009 and 42m @ 0.45g/t Au from 28m in 20BPRC012.
These intersections are initial assays on 4m composite samples. The composite samples will now be re-sampled on an individual metre basis, which may result in the identification of discrete zones of higher grade mineralisation within each interval.
Great Boulder's Managing Director,
'There are two key takeaways here: firstly, we've identified primary gold over a 700m length in our first few RC holes, and it remains open at depth and to the south. That means the deposit is in-situ and not just a shallow supergene deposit limited to the weathered, near-surface material. Secondly, these intersections up to 52m wide demonstrate the potential for a large mineralised system. The next round of drilling will test the true thickness of these zones. These initial holes are on lines 100m apart, so the discovery remains at a very early stage. We are looking forward to recommencing drilling as soon as possible.'
The Company is now planning a second round of RC drilling to define and extend these results. This will commence following the completion of gravity survey processing and target planning.
PROGRAM DETAILS
The program comprised 17 RC holes for a total of 1,706m. All holes were drilled to the west at a dip of -60-degree in order to cross-cut stratigraphy. Petrographic analysis of AC chips identified alteration and foliation consistent with a large, structurally controlled mineralised system. The RC results support this view, however there is insufficient data to confirm the dip of the mineralised structure at this stage. In the next round of RC drilling a number of holes will be drilled towards the east to confirm the dip of Blue Poles mineralisation.
NEXT STEPS
At Whiteheads a ground gravity survey is expected to commence in late January. Gravity data will be collected at approximately 1,400 stations on a 400 x 200m grid on the eastern side of Whiteheads, complementing a survey completed previously by
The gravity data will also be used to refine the Company's interpretation of possible mineralising fluid pathways or natural plumbing systems driven by buried felsic intrusions north of Blue Poles. Auger programs are ongoing at Whiteheads and Side Well, targeting other regional opportunities across both projects.
Further AC drilling is required to investigate mineralisation south of Blue Poles. This program will also test other gold-in-soil anomalies identified in historic auger data north of Blue Poles within the Arsenal Trend. Later this quarter the Company will complete further RC drilling at Blue Poles. In addition to exploration at Whiteheads, the Company has commenced a 4,000m AC program this week at the
Contact:
Email: admin@greatboulder.com.au
ABOUT
Great Boulder is a mineral exploration company with projects in the Yilgarn region of
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