WHITE ROCK, BC / ACCESSWIRE / December 20, 2021 / TDG Gold Corp. (TSXV:TDG) (the "Company" or "TDG") is pleased to report the preliminary assay results from sampling of its former producing JM Zone pit at Shasta.
Assay results from chip samples within the exposed JM Zone pit show a mineralized halo surrounding higher grade pods of quartz carbonate breccia that was left unmined. The JM Zone pit is located ~100 metres southeast of the Creek Zone pit from which TDG reported similar high grade gold and silver chip sample results (see TDG's December 16, 2021 news release ). Chip samples were taken along ~58 metres ("m") of the stockwork body at regular intervals around the 3-sided perimeter of the JM Zone pit. The samples are not representative of true width of the breccia body. Chip sample results include up to 7.59 grams per tonne ("g/t") gold ("Au") with 373 g/t silver ("Ag") , and 7.03 g/t Au with 2 g/t Ag - see Table 1 below for chip sample highlights.
Figure 1. Showing the location of the JM Zone at Shasta. The exposed pit is located above the historical workings marked on the map. The orange rectangle represents the focus of drilling and resource modelling activity at Shasta in 2021.
Table 1. Showing JM Zone Creek Pit chip sample highlights.
Image 2. Shows the location of the sampling over an approximate distance of ~58 m. Samples taken at approximately one metre intervals from right to left in the image above and numbered accordingly.
Table 2: full list of samples from the quartz-carbonate zone - see Image 2 (above).
Samples for the Shasta 2021 drill program followed chain of custody between collection, processing and delivery to an SGS laboratory in Burnaby, B.C. The samples were collected directly by TDG geologists or geological contractors and taken to the core shack at TDG's Baker Mine site. Geological material was then processed by geologists who inserted certified reference materials into the sampling sequence (when/where appropriate). Samples were placed in zip-tied polyurethane bags, then in security-sealed rice bags before being delivered directly from the Baker Mine site to Bandstra Transportation Systems in Prince George, B.C., and ultimately to SGS laboratory Burnaby, B.C, or delivered from source to destination directly by TDG staff or contractors. Samples were prepared for analysis according to SGS method PRP89: dry samples to 105°C, crush to 75 % passing 2 mm, split 250 g, pulverize 85 % passing 75 microns.
Gold was tested by fire assay with ICP-OES finish on a 50-gram nominal sample (method GE_FAI30V5). Method GE_FAI50V10 (ore grade geochemistry) has an upper detection limit of 100 ppm (100 g/t). Silver was tested by digesting at least 0.5 g sample in multi-acid (four acid) followed by an ICP-OES finish (method GE_ICP40Q12). Method GE_ICP40Q12 has an upper detection limit of Ag of 100 ppm (100 g/t), and any overlimit samples are being subsequently run with method GE_ICM40Q12 that has an upper detection of 0.1 % (1,000 g/t).
Quality assurance and control ("QAQC") is maintained internally at the lab through rigorous use of internal certified reference materials, blanks, and duplicates. An additional QAQC program was administered by TDG Gold through the use of certified reference materials ("CRMs") that were blindly inserted into the sample batch. If a QAQC sample returns an unacceptable value an investigation into the results is triggered and when deemed necessary, the samples that were tested in the batch with the failed QAQC sample are re-tested. For the purposes of this news release, results are ‘preliminary' and despite having undergone rigorous internal SGS QAQC (returning ‘final' results), TDG has not completed its DQA investigations at this time.
The technical content of this news release has been reviewed and approved by Steven Kramar, MSc., P.Geo., a qualified person as defined by National Instrument 43-101.
About TDG Gold Corp.
TDG is a major mineral claim holder in the historical Toodoggone Production Corridor of north-central British Columbia, Canada, with over 23,000 hectares of brownfield and greenfield exploration opportunities under direct ownership or earn-in agreement. TDG's flagship projects are the former producing, high-grade gold-silver Shasta, Baker and Mets mines, which are all road accessible, produced intermittently between 1981-2012, and have over 65,000 m of historical drilling. In 2021, TDG has advanced the projects through compilation of historical data, new geological mapping, geochemical and geophysical surveys, and, for Shasta, drill testing of the known mineralization occurrences and their extensions. The Company has entered into a binding agreement to acquire the Nueva Esperanza silver-gold advanced exploration and development project located in the Maricunga Belt of northern chile, subject to closing conditions being satisfied. TDG currently has 74,842,903 common shares issued and outstanding.
ON BEHALF OF THE BOARD
Chief Executive Officer
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TDG Gold Corp.,
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SOURCE: TDG Gold Corp.,