Breakaway Resources (ASX: BRW) is successfully proving the size potential of its Sandy Creek prospect with seven out of 10 reverse circulation holes drilled intersecting further visible copper mineralisation within both the Main and Western zones.
The mineralisation on the Main zone now extends over 700 metres strike to 150 metres deep and mineralisation on the Western zone extends over 190 metres to 150 metres deep.
Importantly, both zones have good extensional potential and could lead to a second large zone of open pitable, near surface mineralisation at Sandy Creek.
The down-hole widths of the visible copper sulphide mineralisation range from 3 to 27 metres.
The new intersections lie down plunge and along strike from existing mineralised intercepts in both the Main and Western zones.
Current drilling is targeting a strong down-hole electromagnetic conductor, which potentially represents a high grade shoot or core within the prospect's Main zone of copper-gold mineralisation.
In addition, it is also testing the extensional potential of the newly discovered Western zone.
This round of drilling is critical to determining the strategic direction of ongoing exploration and evaluation of the Sandy Creek copper-gold discovery.
Sandy Creek represents the most immediate opportunity for Breakaway, and the current drilling program is designed to demonstrate the prospect's economic potential.
Highlighting the high grade, near surface nature of Sandy Creek, assays from Breakaway's 2011 drilling program delivered intersections of:
- 1 metre at 6.23% copper, 0.52 grams per tonne (g/t) gold and 23g/t silver from 65 metres;
- 2 metres at 4.64% copper, 0.69g/t gold and 46.3g/t silver from 44 metres; and
- 2 metres at 2.08% copper, 5.23g/t gold and 8.3g/t silver from 37 metres.
These high grade results were also supported by broader intercepts, including 45 metres at 0.66% copper, 0.14g/t gold and 2.7g/t silver from 36 metres.
Further exploration upside stems from the discovery of a new offhole electromagnetic conductor at the southern end of the Main zone interpreted to lie beneath and slightly south of a drill hole that underwent down-hole electromagnetic surveying.
This may represent a down dip extension to the existing mineralisation in the vicinity of the surveyed drill hole.
Sandy Creek forms part of the Eloise Exploration Project in the world class Cloncurry Mineral District, 70 kilometres southeast of Cloncurry.
The project tenements surround FMR Investments' Eloise copper mine, where mining operations re-commenced last year and are about 100 kilometres south of Xstrata Copper's Ernest Henry mine.
First assays are scheduled for release in mid-June.
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