Era Resources has completed a resource drilling program and received further assay results from the Yandera project in the highlands of Papua New Guinea. An updated resource estimate incorporating all results from the drilling campaign is planned to be completed by the end of 2016.
A total of 43 diamond drill holes comprising approximately 8917 metres were completed at Yandera during the 2016 drill program. The program was designed to infill and expand the Yandera resource, testing opportunities both within and around the margin of the known resource where discovery of additional mineralization can significantly impact the current resource estimate and positively affect potential open pit designs.
Drilling focused on infill in the Dengru, Dimbi, South Dimbi, Gremi, Imbruminda, Gamagu, and Kauwo areas, as well as testing some proximal areas, including targets east of South Dimbi, east of Omora, at East Gremi and within the Benbenubu areas.
Results continue to be encouraging and are expected to allow conversion of some material classified as in-pit waste to resource and may add additional resource by allowing local expansion or deepening of the conceptual open pit design based on the 2015 resource estimate.
Overall, these results are expected to expand the resource estimate and improve the waste to resource ratio in portions of the modelled open pit shells.
The company has received assay results for an additional 13 drill holes.
At Dengri four holes for 924 metres were completed. Drilling intersected copper mineralisation in material previously classified as waste within preliminary open pit models based on the 2015 resource estimate. These results fill gaps in drilling data and are expected to increase the resource estimate locally and convert some in-pit waste to resource. Two holes intersected good copper mineralisation within the current open pit shell, that could connect the Gremi and Omora areas in future pit designs.
Six holes for 1210 metres were completed at Omora. Drilling intersected mineralisation at the edge of the 2015 resource estimate and results from one hole may allow the boundary of the open pit to be expanded to the east to incorporate new resource.
Six holes for 1358 metres were completed at Benbenubu. Targets focused on mineralisation to the east of known mineralisation at Dengru and Omora areas. Drilling intersected additional copper mineralisation likely to add resource to the eastern side of the 2015 estimate. Two holes showed relatively shallow copper mineralisation proximal to historical results that are likely to build the resource to the east. Another hole showed good copper mineralisation likely to add resource between the Omora and Benbenubu areas.
Eight holes for 1624 metres were completed at South Dimbi. Drilling intersected additional copper mineralisation both within and beneath the open pit shells based on the 2015 estimate.
Results from one hole show previously unknown copper mineralisation within the model 2015 resource pit, which is likely to add resource and potentially locally increase the average grade in portions of South Dimbi. Another hole may add resource to the eastern area of South Dimbi.
At East Gremi five holes for 936 metres were completed. Targets focused on mineralised trends thought to extend to the southeast from known copper mineralisation in the South Dimbi area. Drilling intersected mineralisation likely to add resource along these trends outside of the 2015 resource estimate. Results from three holes show copper mineralisation thought to extend to the southeast beyond the South Dimbi area, which may add new resource to the East Gremi area.
Drilling was also carried out at Gremi, Dimbi, Imbruminda, Gamagu and Kauwo with mixed results.