Diamond cores present significantly higher gold grades compared to some close-spaced reverse circulation drill holes at Martins Shaft
Sydney, Feb 21, 2012 AEST (ABN Newswire) - Following release of the Sovereign Gold Company Limited (
ASX:SOC) (Sovereign) announcement (14 February 2012) data has been compared from two sets of close-spaced (10 metre separation) Diamond and Reverse Circulation holes that provide further confidence in the assessment of data integrity between results obtained from Diamond Drill and Reverse Circulation holes (see note 1).
Sovereign's assessment is that diamond drill core predominantly provides samples that give a more accurate measure of the free gold content and hence higher grades.
The Diamond Drill holes below were drilled 10 metres to the south-west of the respective Reverse Circulation holes, on the same dip and azimuth.
Close-spaced Drill Hole Pair 1
Diamond Drill hole SGRDD004:
18 metres @ 3.51 grams/tonne gold from 52-70 metres downhole (see note 2)
Reverse Circulation Drill Hole SGRRC011:
11 metres @1.48 grams/tonne gold from 52-63 metres downhole (see note 2)
Close-spaced Drill Hole Pair 2
Diamond Drill hole SGRDD002:
22 metres @ 3.28 grams/tonne gold from 18-40 metres downhole (see note 2)
Reverse Circulation Drill Hole SGRRC002:
15 metres @ 0.99 grams/tonne gold from 18-33 metres downhole (see note 2)
NOTES:
1 The holes presented above are not twins but simply proximal (10 metres spacings) pairs and hence the natural distribution of gold content within the ore body could in part be responsible for variations between drill methods. However, the twin holes (2 metre spacing) SGRDD014 and SGRCC005 (14 February 2012) supports Sovereign's interpretation that the Reverse Circulation holes are under reporting free gold. Further, free particulate gold has been observed in portions of core from SGRDD002. The current limited data base is insufficient to provide a definitive explanation for variations between the drill methods - metallurgical investigations are ongoing.
2 Downhole length, true width not known. All drill intersections are stated as downhole lengths, true width not yet determined.
For the Full Announcement Including Tables:
http://abnnewswire.net/lnk/67899Z3P
About Sovereign Gold Company Limited
Sovereign Gold Co Ltd (ASX:SOC) is an Australian-based specialist gold exploration company. Sovereign Gold has a portfolio of quality tenements located in Eastern Australia where there is known potential for the occurrence of Intrusion-Related Gold Systems (IRGS). Sovereign Gold has a highly prospective tenement package covering the Rocky River-Uralla Goldfield, 21km southwest of Armidale, NSW, Australia. Sovereign owns the recent Mt Adrah Hobbs IRGS discovery south-east of Wagga Wagga, NSW.
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