Ghana – A comprehensive auger geochemistry programme recently undertaken at AIM-listed GoldStone Resources’ Homase/Akrokerri gold project in Ghana, has revealed potential new zones of mineralisation.

GoldStone currently holds a 65% interest in the Homase license, with an option to earn up to 85%, while Akrokerri is 100% GoldStone-owned.


  • Auger sampling programme successfully completed over eight high-priority gold targets close to and along strike from the company’s 602 000 oz Homase/Akrokerri gold deposit
  • 1 332 auger holes drilled to a maximum depth of 3 m
  • Results have indicated two potentially new zones of mineralisation – a 1 500 m anomaly at the AK02 prospect, immediately south west and along strike of the Homase/Akrokerri deposit, and an 800m anomaly, the AK04 prospect, that may be an extension of AK02
  • Both prospects show immediate promise to host additional bedrock gold mineralisation to potentially add to existing resources
  • Close-spaced infill auger sampling is underway to support future definition of drill targets

GoldStone Resources recently completed a comprehensive auger geochemistry programm with the purpose of identifying further drill targets that could potentially add to the company’s existing 602 000 oz gold JORC code compliant resource.

The auger programme was conducted over eight high-priority gold targets within the project area thought to be prospective for further gold mineralisation, of which six returned a number of anomalies.

After a thorough review of the results of the auger programme, Goldstone will now focus its exploration on two prospects
After a thorough review of the results of the auger programme, GoldStone will now focus its exploration on two prospects

The method of augering used by GoldStone provided its geologists with a sample of Bottom-of-Transported (BOT) material, which significantly improves the chances of detecting a buried gold deposit.

After a thorough review of the results of the auger programme, GoldStone will now focus its exploration on two prospects, named AK02 and AK04, both of which returned strongly anomalous results (of gold values between 44 and 244 parts per billion of gold – 0.044 and 0.244 parts per million of gold) and which are positioned along the south-west strike extension of the structural zone that hosts the existing Homase/Akrokerri gold resource.

Importantly, both prospects occur over what is interpreted to be a major flexure of the structural zone that hosts the Homase/Akrokerri gold resource to the north-east.

The AK02 auger drilling anomaly can be traced continuously over approximately 1 500 m and is contained mostly in proximal colluvium that is interpreted to overlie bedrock gold mineralisation or have travelled a short distance from it.

Several anomalous in-situ laterite (a hard, iron-rich soil formed by prolonged chemical weathering in tropical environments) samples of a similar gold tenor in close proximity to this prospect provide additional confidence that gold mineralisation is proximal to these defined auger anomalies.

Three lines of historic, shallow reverse circulation (RC) drilling, completed in 1998 and 1999, are thought to intersect the interpreted AK02 zone locally.  Results from the historic RC drilling of 5 m grading at 1.3 g/t gola from 39 m (99AKRC083), 6 m grading at 1.6 g/t gold from 24 m (98AKRC028) and 2 m grading at 3.1 g/t gold from 21 m (98AKRC021) are encouraging.  However, the results from the company’s auger programme suggest that the strongest anomalies have yet to be drilled at depth.

At AK04 the auger programme also yielded a very consistent east-west gold anomaly over a strike of 800 m.  The anomaly is, as at AK02, contained in colluvial regolith that is interpreted to be very close to a bedrock gold source.  Historic RC drilling was conducted over only 100 m strike length of the anomaly with mixed results including 1 m grading at 8.4 g/t gold from 20 m (00AKRC109) and 3 m grading at 2.3 g/t gold from 40 m (00AKRC104).

Additional infill auger sampling will now be conducted before a drilling programme can be considered.  The programme will sample AK02 and AK04 on a 100 m x 25 m grid.  This will provide the Goldstone’s geologists with sufficient density of data and confidence of provenance of gold mineralisation to be able to plan a drilling campaign.

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