Building Gold Resources in Historic Klondike Goldfields
TSX-V: KG

Sampling and Assay Protocols

Drill Core

All drill holes in 2015 – 2023 recovered NQ size (36.5mm) (inside) diameter drill core. All drill holes are photographed wet. Magnetic susceptibility, foliation, and rock quality determination (“RQD”) measurements are systematically collected. All cross-cutting (potentially mineralized) quartz veins and adjoining alteration envelopes are individually photographed. Core logging records lithology, structure, and alteration if present. Oriented core is measured (2018 protocol). Visible gold is identified, measured, photographed, and then excluded from the assay sample for that interval. Core sample lengths vary from 0.2 to 1.5 meters, generally averaging one meter. Assay samples from drill core are cut using a diamond saw. Half the core sample interval is bagged, tagged, and sealed; the other half is returned to the core box with a corresponding tag and retained for reference.

Three gold reference standards, blanks, coarse crush blanks, and sample duplicates are routinely inserted in the sample series as part of a rigorous quality assurance / quality control (QA/QC) program.

Sample bags are aggregated into rice bags, sealed, and submitted by Klondike Gold personnel to Bureau Veritas Mineral Laboratories (“BV Labs”; formerly Acme Labs) preparation facility in Whitehorse, YT with chemical analysis of sample pulps completed in Vancouver, British Columbia. Bureau Veritas Labs is an accredited ISO 9001:2008 full-service commercial laboratory.

At BV Labs each drill core sample is crushed to 70% passing 2 mm size. A 250 g subsample is pulverized to 85% passing 75 microns size (200 mesh) (PRP70-250). A 30 g subsample of the fraction is assayed for gold by fire assay (“FA”) fusion with an atomic absorption (“AA”) finish (FA430). All over-limit results in excess of 10 ppm (10 g/t) for both silver and gold are re-assayed using a 30 g subsample and assayed by FA with a gravimetric finish (FA530-Au/Ag). Samples are also analyzed for multi-element chemistry by Aqua Regia ICP-MS analysis (AQ201). Samples over-limit in lead are selectively rerun by a high-detection limit Multi-acid ICP-ES procedure (MA370). Upon receiving the results back from BV, and making sure they pass Klondike Gold’s quality assurance and quality control protocols, selected significant intervals are re-prepped and analyzed using metallic screen analysis (FS631).

For metallic screen analysis (FS631), each drill core sample is crushed to 70% passing 2 mm size. A 500 g subsample is pulverized to 85% passing 75 microns size (200 mesh) (PRP70-500). The 500 g subsample is then sieved to 106 microns (140 mesh) for “metallic screen” assaying. The plus 140 mesh fraction is then weighed and assayed for gold by fire assay (“FA”) fusion with a gravimetric finish (FS631). A 30 g subsample of the minus 140 mesh fraction is assayed for gold by fire assay (“FA”) fusion with an atomic absorption (“AA”) finish (FA430). All over-limit results in excess of 10 ppm (10 g/t) for both silver and gold are re-assayed using a 30 g subsample and assayed by FA with a gravimetric finish (FA530-Au/Ag). Total gold grade is then calculated using a weighted average of the plus and minus fraction assay results. QA/QC protocol includes the insertion and continual monitoring of Klondike Gold standards, blanks, and field/core duplicates within each batch, in addition to BV Labs internal QA/QC samples.

The results of the control samples are evaluated on a regular basis with batches re-analyzed and/or resubmitted if they are between two consecutive failing QAQC samples. A failed QAQC sample is a sample where the reported gold grade is outside three standard deviations of the expected value on the CRM certificate, or if there is 10x detection limit gold value in a certified blank. All results stated have passed Klondike Gold’s quality assurance and quality control protocols.

Prospecting Samples

Klondike Gold prospecting samples are selective in nature, non-representative rock grab samples of bedrock or boulders collected to test for the presence or absence of gold and other ‘economic’ minerals. Systematic additional test results may vary significantly. Samples are usually 0.5 kg to 2.0 kg in weight. The Company’s samples are spatially located to within 5 meters using a hand-held Global Positioning System (“GPS”) in NAD83 datum, assigned a unique assay tag, described, photographed using a GPS-enabled camera, then placed in a plastic bag and sealed. Groups of sealed sample bags are aggregated in large fiber bags then security sealed for shipment. The fiber bags are retained in locked storage in the Company’s Dawson office before being delivered by Company personnel directly to the lab. Samples are submitted to Bureau Veritas Mineral Laboratories (“BV Labs”; formerly Acme Labs) preparation facility in Whitehorse, YT with chemical analysis of sample pulps completed in Vancouver, British Columbia. Bureau Veritas Labs is an accredited ISO 9001:2008 full-service commercial laboratory.

As per Klondike Gold’s instructions, at BV Labs each 1 kg rock sample is crushed to 70% passing 2 mm size. A 250 g subsample is pulverized to 85% passing -75 microns size (PRP70-250). A 30 g (1 assay ton) subsample is assayed for gold by fire assay (“FA”) fusion with an atomic absorption (“AA”) finish (FA430). All over-limit results in excess of 10 ppm (10 g/t) for both silver and gold are re-assayed. The re-assay uses a 30 g subsample and is assayed by FA with a gravimetric finish (FA530-Au/Ag). Samples were also analyzed for multi-element chemistry by Aqua Regia ICP-MS analysis (AQ201). Samples over-limit in lead are rerun by a high-detection limit Multi-acid ICP-ES procedure (MA370).

Soil Samples

Soils are collected using a soil auger or mattox and placed in a Kraft paper soil sample bag. Soil samples were aggregated into rice bags, sealed, and submitted by Klondike Gold personnel to Bureau Veritas Mineral Laboratories (“BV Labs”; formerly Acme Labs) preparation facility in Whitehorse, YT with chemical analysis of sample pulps completed in Vancouver, British Columbia. Bureau Veritas Labs is an accredited ISO 9001:2008 full-service commercial laboratory. Samples were analyzed for multi-element chemistry by Aqua Regia ICP-MS analysis (AQ201). QA/QC includes the insertion and continual monitoring of Klondike Gold standards, blanks, and duplicates within each batch, in addition to BV Labs internal QA/QC samples.

The technical and scientific information contained within this page has been reviewed and approved by Peter Tallman, P.Geo, President of Klondike Gold Corp. and Qualified Person as defined by National Instrument 43-101 policy. Last updated Jan. 2024.