SRK was commissioned to produce a Mineral Resource Estimate for the Ak-Tash gold-copper deposit in accordance with the JORC Code (2012).
The Ak-Tash skarn deposit is part of the Barkol-Ak-Tash mineralised district, which is located along the international boundary between the Kyrgyz Republic and Kazakhstan. Ak-Tash is located along a major SW-NE trending fault and is a complex porphyry related gold-copper deposit. Mineralisation is located at the intrusive contacts between granitoids and marble.
The deposit consists of three main areas (skarn related) possibly offset by late faulting. The deposits themselves comprise of lenses of skarn, altered and brecciated stockwork porphyry material that dip subparallel to the main granodiorite limestone-marble contact.
Historic reports state that the deposit was exploited in ancient times, possibly in the early Bronze Age. Re-discovered in the early 1930s, exploration has been carried out in by various parties since that time.
As well as reflecting estimated Au, Cu and Ag grade in the resource model, SRK also included estimated values for acid solubility based on testwork carried out. In terms of the Cu mineralogy, most of the deposit is considered to be in the oxide state.
As part of this assignment, SRK provided technical assistance to the Client in the form of core logging and sampling training. In addition, SRK assisted in the development of detailed procedures for geological and geotechnical logging, sampling, QAQC and laboratory protocol.
