Hillgrove reports additional gold zones identified at Sumba project
Monday, December 14 2009 - 04:56 AM WIB
Results from the trenching programs on the Western Vein system at Pahandanjal were released on the 10 December 2009, and results have now been received for some of the trenching conducted on the Eastern Vein system and from the reconnaissance rock chip! float sampling completed at both Pahandanjal and North Pahandanjal Prospects.
Results from the program continue to highlight the potential for multiple drill targets both at Pahandanjal and the neighbouring prospects which should be ready for drill testing in early 2010.
David Archer, the Managing Director of Hillgrove Resources said today ?the results we have received to date have been highly encouraging and it appears that a variety of mineralisation styles may be present. While there are narrow high grade lodes within the vein systems that are of obvious interest, the broad alteration zones with low grade gold are also of major significance?.
Masu Project
The Masu Project is located in South East Sumba and has been the principal focus for exploration activities in 2009.
Pahandanjal Prospect- Eastern Vein
Trenching at the southern end of the Eastern Vein system confirmed the presence of a high grade zone at an interpreted structural intersection. Results are shown in Figure 2 and Table 1 which includes the following:
? FT18: 14m at 6.97g/t Gold and 10.74g/t Silver including 4m at 10.18g/t gold and 15.05g/t Silver and 2m at 9.29g/t gold and 10g/t silver.
The Eastern Vein system strikes approximately NNW and outcrops over at least 600m, but exhibits multiple intersecting lodes which vary from ENE to ESE. As with parts of the Western Vein system, trench results also indicate that there is a low grade alteration halo to many of the lodes. The ENE and WNW trending lodes generally occur as brecciated and disseminated low grade zones, with higher grades at structural intersections.
Previously reported results from Hillgrove?s 2008 field program included the identification of a 200m x 200m gold in soil anomaly peaking at 0.67g/t gold at the Pahandanjal Prospect. Significant results to date from follow-up trenching of this anomalous zone have proven that a broad zone of low grade gold mineralisation exists in this area. Results include:
? FT12: 46m at 1.01g/t Gold, 5.21g/t Silver incl. 20m at 1.35g/t Gold, 7.89g/t Silver
? FT21A: 46m at 1 .02g/t Gold and 2.63g/t Silver (not all results received)
? FT13: 74m at 0.5g/t Gold and 3.19g/t Silver.
Pahandanjal Prospect - Western Vein
Results from trenching on the Western Vein system have already been quoted in a previous release, but recent rock chip/ float sampling has continued to confirm the prospectivity of this vein system for high grade gold mineralization.
Rock chip/float samples have returned peak assays of up to 139g/t gold, 415g/t silver and 7.8% lead and point towards a dynamically evolving epithermal system that may exhibit vertical zonation in mineralisation style and grades.
Grades generally seem to be improving to the south of the Western lode and this corresponds to a drop in R. L.
Examples of the differing epithermal textures observed for the Western Vein system are shown in the two high grade samples in Plate 1 and 2.
North Pahandanjal Prospect
Reconnaissance rock chip, sampling and soil sampling has been completed over this prospect area which contains north striking vein systems similar to Pahandanjal.
Peak assays from rock chip sampling here include one sample that returned 58g/t gold and 133g/t silver. This satellite prospect requires more detailed mapping and sampling prior to potential drill testing.
Both the Western and Eastern Vein systems will be the subject of an upcoming program of diamond drilling in 2010. Both vein systems strike approximately ~N-S but also exhibit fairly extensive low grade halos which extend some distance into the country rock, and there is the potential for larger tonnage of low grade mineralisation peripheral to the main lodes.
Trenching has confirmed that the Pahandanjal Prospect has the potential to host multiple, fracture-controlled vein systems of comparable grades and dimensions to epithermal low sulphidation systems mined elsewhere in the Indonesian archipelago.
About Hillgrove
Hillgrove is an Australian mining company listed on the Australian Securities Exchange (ASX: HGO) focused on developing its Indonesian, South Australian and Queensland base and precious metals projects. The Company is targeting the discovery of world class epithermal gold and porphyry copper/gold deposits in Eastern Indonesia. (end of edited release)