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Oyadao South (Halo)

The Oyadao South License is approximately 247 sq. km. The license was renewed in 2017 for  3 years with extensions for an additional 4 years. The Oyadao South License contains several prospects, including the Halo Prospect.

Angkor announced a USD $3 million joint exploration agreement with Japan Oil, Gas and Metals National Corporation (“JOGMEC”) to explore Angkor’s 100% owned Oyadao South license. The agreement is for a  total investment of USD $3 million in exploration expenditures by JOGMEC over a 3 year period will begin immediately with Angkor as operator effective March 29, 2017 under the previously agreed to JEA. The JEA also gives JOGMEC the option right to acquire 51% of the Oyadao South license. JOGMEC was established in February 2004, following the integration of the former Japan National Oil Corporation and Metal Mining Agency of Japan. It is an Independent Administrative Agency under the Japanese Ministry of Economy, Trade and Industry, with a mandate of investing in exploration minerals projects worldwide to help secure a stable supply of natural resources for Japanese industry.

Angkor announced results from an initial 2017 drilling program on October 19, 2017. Highlights of Phase 1 program results include:

  • All of Phase 1 diamond drilling and IP programs at Halo are now complete.
  • Results from HAL17-001D showed an intercept of 2345 ppm Cu, 1.34 g/t Ag, and 261.4 ppm Mo over 88.9m including an intercept of 8043 ppm Cu, 2.24 g/t Ag, and 320.7 ppm Mo over 7.9m.
  • Results indicate the existence of previously unknown copper-molybdenum porphyry systems at Halo.
  • Results from HAL17-004D and final interpretation of the IP program are still pending.
  • The Phase 2 exploration program in Oyadao South includes additional diamond drilling at Halo, targeting IP anomalies and expand regional exploration onto additional magnetics and geochemical anomalies in Oyadao South.

The first phase of the diamond drilling and IP at Halo is completed with a total of 1,578 m of drilling in four holes, 41.6 km of surface IP lines, downhole IP on all four completed drill holes, and IP core testing on 157 samples from all four drill holes.

The Company believes the Halo occurrence on the Oyadao License represents the discovery of a new and previously unknown porphyry system. Porphyry systems can be richly endowed with associated epithermal gold and silver veins, base and precious metal skarns. Drill hole HAL17-001D results represent mineralization found away from but likely connected to the centre of the mineralized porphyry system. All the drill holes intercepted alteration and veining associated with porphyry systems. Interpretation of the surface IP survey and down-hole IP surveys will assist in determining the Phase 2 drill program.

Assay results from drill holes HAL17-001D, HAL17-002D, and HAL17-003D have been returned from ALS-Chemex Laboratories with results from HAL17-004D still pending.  Hole HAL17-001D shows appreciable copper (Cu) and silver (Ag) mineralization in the top 99 metres, with anomalous levels of molybdenum (Mo) corresponding with disseminated sulphides observed in the same interval. Included in the 99m interval is an intercept of 2345 ppm Cu, 1.34 g/t Ag, as well as 261.4 ppm Mo over 88.9m which  includes 7.9m of 8043 ppm Cu, 2.24 g/t Ag, and 320.7 ppm Mo from 10.1m to 18.0m. Click here to see the full table of results.

Phase 2 drilling and exploration planning is underway as of November, 2017.

Earlier, the entire license area was the subject of an aeromagnetic and airborne radiometric survey, satellite imagery geological interpretation, with reconnaissance field truth mapping and multi-element stream sediment geochemical survey, taking samples from catchments of roughly 1km2 extents and analyzed for a broad spectrum of elements by ICP-MS and SFA by ALS-Chemex.. These efforts highlighted several areas as specific targets for further more intensive work. The most obvious target was the area of intensive artisanal mining of Phum Syarung in the central north of the tenement, where literally dozens of mostly Vietnamese illegals were grubbing in the narrow veins for gold. A survey of the workings was undertaken in conjunction with an augered ‘C’ zone soil geochemical survey of 1,474 samples covering an area of 1.2km2, which suggested 3 parallel zones of interest striking roughly north-south, over a strike length of perhaps 700m. Diamond drilling 1,991m in 19 holes showed 2 potentially economic gold-bearing veins (#8 and #13) with 1.20g/t Au, 4.20g/t Ag, 0.09% Cu, 2.67% Pb, 0.75% Zn over 2.0m and 6.27g/t Au, 4.07g/t Ag, 0.14% Cu, 0.60% Pb, 0.59% Zn over 4.0m respectively. On the basis of this Phum Syarung project was sold to Mesco Gold in late 2012.

The stream sediment survey of 2009 showed a mildly anomalous area in the east, Phum Lomh, and a hugely anomalous area in the south, Dokyong. Phum Lomh showed some promise from reconnaissance mapping, including a microstockwork of quartz veinlets in silicified acid pyroclastics, but attention was focused on Dokyong; and this latter was subjected to detailed geological mapping and a rock chip geochemical survey. This confirmed the stream sediment results and indicated abundant quartz flooding in the area. A follow-up augered ‘C’ zone soil geochemical survey in the Dokyong area, involving 2,505 samples in a 4.6km2 area produced 5 clear targets. These were tested by 5 short scout holes, totalling 617m which confirmed strong silica flooding an epithermal origin, possibly related to porphyry style mineralization.

The geochemical anomalism at Dokyong is closely tied to fracturing which align perfectly with the fractures of Phum Syarung, some 10km to the north. Accordingly, 990 termite mound samples from 1.0 km2 were collected in Phum Lomh area, and 11,460 samples from 18.4 km2 along the fracture corridor between Dokyong and Phum Syarung. This latter program revealed 5 new prospects, including an ovoid volcanic vent, Otray, picked out by a hollow ’doughnut’ of anomalous copper surrounding a core of anomalous gold. At Otray, Cassava and Blue Lizard prospects this success was reinforced by very detailed geological mapping and reflected infrared spectroscopy to map clay alteration patterns. Pilot geophysical work including Spontaneous Potential (SP), Radiometrics (gamma ray), Ground Magnetic (GMS), Very Low Frequency Electromagnetic (VLF-EM) and Resistivity (VLF-R) surveys were run on the Blue Lizard prospect, coupled with some trenching; then, to raise money for continuing exploration, that project was sold to Mesco as a logical addendum to their Phum Syarung prospect.