Highlights from the drilling include: 9m @ 21.21g/t Au from 207m in 21MBRC062, including 4m @ 40.68g/t Au from 210m
6m @ 5.99g/t Au from 88m in 21MBRC061, including 1m @ 28.48g/t Au from 92m
21m @ 2.96g/t Au from 76m in 21MBRC093, including 14m @ 4.25g/t Au from 80m
13m @ 1.89g/t Au from 86m in 21MBRC060, including 2m @ 9.14g/t Au from 91m.
Great Boulder's Managing Director,
The intersection in hole 21MBRC062 appears to correlate with a sub-vertical mineralised structure logged in a nearby diamond hole last year, which means this high-grade zone is on a different orientation to other flat-lying high-grade veins nearby. The high-grade nature of this mineralisation is important as it represents one of the best intersections within fresh rock within this area of drilling.
As drilling continues, it is becoming clear that the depletion layer has a variable effect in mineralisation, which explains why quartz lodes sitting close to this depth in adjacent holes have displayed variable levels of gold mineralisation.
The results include three holes that were drilled in a fence across the top of a geophysical anomaly identified in work completed by GBR last year, where a conductive feature coincides with the gravity high that appears to map the position of mineralisation further north within Mulga Bill. The holes were analysed by photon assay in order to achieve the fastest possible assay turnaround. All three holes intersected broad zones of disseminated pyrite containing zones of low to medium-grade gold mineralisation.
Critically the zone of gold and pyrite mineralisation lie directly above the modelled gravity body. A diamond tail is planned to test through the center of the anomaly during the next diamond drill campaign. 21MBRC093 intersected strong mineralisation to the east of the main mineralised trend at Mulga Bill. Quartz veining was observed within the RC chips for this interval. Although this mineralisation is high in the regolith profile and therefore subject to some supergene enrichment, it is most likely related to a primary structure. Further drilling will be undertaken to ascertain whether this represents an offset of the main Mulga Bill structure or a completely new structure.
Contact:
Tel: +61 408 228 889
Email: lucas@corporatestorytime.com
Web: www.greatboulder.com.au
About
Great Boulder is a mineral exploration company with a portfolio of highly prospective gold and base metals assets ranging from greenfields through to advanced exploration located in
COMPETENT PERSON'S STATEMENT
Exploration information in this Announcement is based upon work undertaken by Mr
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