A complete list of the 2020 – 2021 drill results to date, including hole details, can be viewed at:
https://newcoregold.com/site/assets/files/5692/2021_05_18-ncau-enchi-2020-2021-drill-results-l.pdf
A total of 43,380 metres in 261 holes have been completed as part of the ongoing 2020 – 2021 drill program at Enchi. For the total planned 66,000 metre drill program, assay results have now been received and released for 202 holes representing 32,867 metres.
The Enchi Gold Project hosts a pit constrained Inferred Mineral Resource of 52.9 million tonnes grading 0.72 g/t Au containing 1.22 million ounces gold (see Newcore news release dated September 14, 2020). The Mineral resource estimation practices are in accordance with CIM Estimation of Mineral Resource and Mineral Reserve Best Practice Guidelines (November 29, 2019), and follow CIM Definition Standards for Mineral Resources and Mineral Reserves (May 10, 2014), that are incorporated by reference into National Instrument 43-101 («NI 43-101»). The Mineral Resource is detailed in a technical report titled «Enchi Gold Project, Resource Update, Enchi Ghana» with an effective date of October 21, 2020, prepared by Todd McCracken and Greg Smith and filed on SEDAR at www.sedar.com.
Metallurgical Testwork
The 2021 metallurgical testwork completed to date on the Kwakyekrom Gold Target at Enchi consisted of a series of bottle roll tests completed by Intertek Minerals Limited on 25 representative oxide samples from the ongoing drill program. An average gold recovery of 79.8% was achieved from 24-hour bottle roll tests, with 18 of the 25 samples achieving a recovery greater than 80% and averaging 86.9%.
The 25 samples were selected from RC drilling completed in 2020 and used a total of six individual drill holes covering a strike length of approximately 400 metres. Samples included a range of gold grades (from 0.26 g/t Au to 4.32 g/t Au, with an average of 1.02 g/t Au) and a range of weathering intensities correlating with depth (from 5.0 m to 45.7 m, with an average depth of 22.8 m). The samples were selected from the moderately and highly weathered categories which represent the largest component of the weathered profile at the Project. There was no significant relationship noted between the recovery rate and the sample grade or sample depth.
Further metallurgical testing, including column tests, is ongoing as part of the current work program at Enchi.
Updated PEA Study
Newcore has engaged BBA Engineering Ltd. independent engineering consultants to prepare an updated NI 43-101 Preliminary Economic Assessment («PEA») study for the Project. The study is progressing and is in the final stages of completion, with results anticipated by the end of Q2 2021. The updated PEA will incorporate approximately 18,000 metres of drilling completed in 2020.
2020 – 2021 Enchi Drilling Program
A 66,000 metre discovery and resource expansion drilling program is underway at Enchi. The program includes both RC and diamond drilling and will include the first deep drilling planned on the Project. This drill program includes testing extensions of the existing resource areas while also testing a number of high priority exploration targets outside of the Inferred Mineral Resource. Drilling is focused on step out extensions and exploration drilling at the Boin, Sewum, and Nyam Deposits. Additional drilling is planned at previously drilled zones that are outside of the resource area (Kojina Hill, Kwakyekrom and Eradi), along with first pass drilling to test a series of kilometre-scale gold-in-soil anomalous zones with no prior drilling (Nkwanta, Sewum South and other anomalies). All zones represent high priority targets based on geological, geochemical and geophysical surface work and previous trenching and drilling.
Kwakyekrom Gold Target
The Kwakyekrom Gold Target had seen limited past drilling and does not currently have a defined mineral resource. Kwakyekrom is one of the most advanced exploration targets being tested by Newcore as part of the 2020 – 2021 drill program, with 7,666 metres of drilling in 49 RC holes completed to date as part of the ongoing 66,000 metre drill program. Kwakyekrom is located 15 kilometres south of the town of Enchi, with nearby roads and power and further access provided by a series of drill roads. The Kwakyekrom structure is interpreted to be an extension of the Nyam structure and is located five kilometres south of Nyam. The zone is outlined on surface by a four-kilometre-long and one-to-two-kilometre-wide gold in soil anomaly. An airborne geophysical anomaly coincident with the Kwakyekrom Gold Target is a sharp break in the conductivity trend.
Drill Hole Locations |