News / G2 Confirms Excellent Gold Recoveries G2 Confirms Excellent Gold Recoveries from OKO BLEG Tests
TORONTO, Jan. 10, 2022 (GLOBE NEWSWIRE) -- G2 Goldfields Inc. (“G2” or the “Company”) (TSXV: GTWO; OTCQX: GUYGF) is pleased to report the results from Bulk Leach Extractable Gold (BLEG) tests undertaken on drill core samples from the OKO project, Guyana. The tests were completed by MSALABS in Guyana and results have been reviewed by Richard Gowans P.Eng., a Principal Metallurgist and Qualified Person (QP) of Micon International Limited, an independent consulting company based in Toronto, Canada.
A total of seven samples from four different drill holes were selected by G2 for BLEG tests. Each 1 kg sample was ground to approximately 85% passing 75 microns and leached for 12 hours in a 1% sodium cyanide solution. The pH was maintained above 9 throughout the test period using sodium hydroxide.
A description of the samples and the test results are presented in the table below.
| Test
No. | Hole ID | From | To | Sample
Assay1 | CN Test Calc.
Head2 | CN Soluble
Au |
| (m) | (Au-g/t) | % |
| 1 | OKD-72 | 96.9 | 97.9 | 9.5 | 7.6 | 99.5 | % |
| 2 | OKD-72 | 97.9 | 98.3 | 3.6 | 5.1 | 98.4 | % |
| 3 | OKD-77 | 57.7 | 58.5 | 32.1 | 29.5 | 99.5 | % |
| 4 | OKD-77 | 133.1 | 134.1 | 680.7 | 714.5 | 99.1 | % |
| 5 | OKD-81 | 90.8 | 92.0 | 2.5 | 2.2 | 93.9 | % |
| 6 | OKD-28 | 176.8 | 177.6 | 53.7 | 51.1 | 99.7 | % |
| 7 | OKD-46 | 256.6 | 257.91 | 5.2 | 6.1 | 98.4 | % |
| Average | 112.5 | 116.6 | 98.4 | % |
1 Standard fire assay (FA) with gravimetric finish of feed sample.G2 Confirms Excellent Gold Recoveries from OKO BLEG Tests.
2 Calculated head combining atomic absorption spectrometry (AAS) for the leach solution and FA for the leach residue.
The average difference between the feed assays and the calculated head assays is less than 4% which suggests that the tests are reliable and nugget effects, sampling, and assay errors, are not significant.
The BLEG averaged 98.4% and varied between 93.9% and 99.5%. These results demonstrate that there is no refractory gold component in the OKO drill core samples and high gold recoveries (>95%) would be expected using conventional agitation leach technology, such as carbon-in-pulp (CIP).
Dan Noone, CEO, noted, “The remarkably high recoveries, over such a short leaching period, suggest the OKO mineralisation will be amenable to treatment by standard, low CAPEX, low OPEX processing methods. This aligns with G2’s philosophy of exploring for high grade, high margin, and low environmental impact deposits.”
QA/QC
Drill core is logged and sampled in a secure core storage facility located on the OKO project site, Guyana. Core samples from the program are cut in half, using a diamond cutting saw, and are sent to MSALABS Guyana, in Georgetown, Guyana, which is an accredited mineral analysis laboratory, for analysis. Samples from sections of core with obvious gold mineralization are analysed for total gold using an industry-standard 500g metallic screen fire assay (MSALABS method MSC 550). All other samples are analysed for gold using standard Fire Assay-AA with atomic absorption finish (MSALABS method; FAS-121). Samples returning over 10.0 g/t gold are analysed utilizing standard fire assay gravimetric methods (MSALABS method; FAS-425). Certified gold reference standards, blanks, and field duplicates are routinely inserted into the sample stream, as part of G2 Goldfield’s quality control/quality assurance program (QAQC). No QA/QC issues were noted with the results reported herein.
About G2 Goldfields Inc.
The G2 Goldfields team is comprised of professionals who have been involved in the discovery of more than 8 million ounces of gold in Guyana and the financing and development of Guyana’s largest gold mine. The Oko Main Zone discovery is the initial fruit of the application of this extensive in-country experience. Ongoing exploration within the 17km long Aremu – Oko trend has generated multiple drill targets, similar in geological setting and scale to Oko Main. The Aremu – Oko district has been a prolific alluvial goldfield since the rush of the 1870’s. Modern exploration by the G2 Goldfields team has begun and continues to reveal the exceptional potential of this district.
All scientific and technical information in this press release has been prepared under the supervision of Dan Noone (CEO of G2 Goldfields Inc.), a “qualified person” within the meaning of National Instrument 43-101. Mr. Noone (B.Sc. Geology, MBA) is a Member of the Australian Institute of Geoscientists.
For further information please contact:
Dan Noone
CEO
+1.416.628.5904
Email: d.noone@g2goldfields.com
............Bluetick