Cosigo Core results during hydrogeological advancement drilling

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Cosigo Resources Ltd. (TSXV: NEX.CSG.h) – TheNewswire – December 18, 2024. The management of Cosigo Resources reports that the Company has received the results of core assays from its Taraira North property from a second phase lower slope hole numbered 24TAR_DH_022. The 8698 cm (87m) hole covered the lower strata of the ridges’ eastern slope.

The company’s intent was to accomplish double this depth from a higher collar near the top of the ridge. An innovative approach using RC tools to pass through the uppermost, most fractured and weathered strata (anticipated to be about 8000 cms/80m) and then to switch to full core drilling was intended.  The drill hole, designated 24TAR_RCDH_021, did succeed in passing through the upper, broken, 8000 cms/80m but RC drilling efforts were defeated by the following 1000 cms/10m which in part comprised sand and broken rock that appears to have flowed in from nearby historic (and unrecorded) artisanal miners’ workings. These recordings and samples will supply a substantial amount of information to understand the porosity of the stratigraphy for the ancillary hydrogeological study. Results from this first upper segment are still pending from the Vancouver laboratory.  

Relocating further down slope as 24TAR_DH_022 assisted in avoiding the numerous historical mining adits that seemed to exist near the bottom of 24TAR_RCDH_021.

Cuttings and cores from the recent study were examined by Company geologists who recorded details of rock types, scintillometer counts and magnetism, and panned samples of RC cuttings, preparing them for transport to analytical labs.  As a test of the new geological identification method known as ‘hyperspectral scanning’, the cores were submitted for Quantum Ultrafluroscopic scanning, in Sechelt, BC (near Vancouver) in late November and these results will be expected in mid to late January.

Table 1.  Sample Data of 24TAR_DH_022 inserted for illustration.

SAMPLE (Size 76.2 cms)WEI-21Recvd Weight.kgAu-AA26Auppm 
12.240.02white sandstone of fine grain with presence of oxidation, with quartz veins
22.440.01white sandstone of fine grain with presence of oxidation, with quartz veins
32.341.23white sandstone of fine grain with presence of oxidation, with quartz veins
42.300.07white sandstone of fine grain with presence of oxidation, with quartz veins
52.440.17white sandstone of fine grain with presence of oxidation, with quartz veins
62.300.03white sandstone of fine grain with presence of oxidation, with quartz veins
71.520.02white sandstone of fine grain with presence of oxidation, with quartz veins
81.940.04white sandstone of fine grain with presence of oxidation, with quartz veins
92.040.01white sandstone of fine grain with presence of oxidation, with quartz veins
103.100.01white sandstone of fine grain with presence of oxidation, with quartz veins
113.180.02white sandstone of fine grain with presence of oxidation, with quartz veins
122.46<0.01white sandstone of fine grain with presence of oxidation, with quartz veins
132.360.02white sandstone of fine grain with presence of oxidation, with quartz veins
142.54<0.01Polymictic conglomerate with siliceous matrix and cement, subrounded to subangular clasts of quartzites, rhyolitic tuff and arenite quartz
152.240.02Polymictic conglomerate with siliceous matrix and cement, subrounded to subangular clasts of quartzites, rhyolitic tuff and arenite quartz
162.480.14Polymictic conglomerate with siliceous matrix and cement, subrounded to subangular clasts of quartzites, rhyolitic tuff and arenite quartz
172.640.03Polymictic conglomerate with siliceous matrix and cement, subrounded to subangular clasts of quartzites, rhyolitic tuff and arenite quartz
182.74<0.01Polymictic conglomerate with siliceous matrix and cement, subrounded to subangular clasts of quartzites, rhyolitic tuff and arenite quartz
191.84<0.01Polymictic conglomerate with siliceous matrix and cement, subrounded to subangular clasts of quartzites, rhyolitic tuff and arenite quartz
202.420.01Polymictic conglomerate with siliceous matrix and cement, subrounded to subangular clasts of quartzites, rhyolitic tuff and arenite quartz
213.420.52Polymictic conglomerate with siliceous matrix and cement, subrounded to subangular clasts of quartzites, rhyolitic tuff and arenite quartz
222.30<0.01white sandstone of fine grain with presence of oxidation, with quartz veins
233.00<0.01white sandstone of fine grain with presence of oxidation, with quartz veins
242.60<0.01white sandstone of fine grain with presence of oxidation, with quartz veins
252.580.01white sandstone of fine grain with presence of oxidation, with quartz veins
262.440.01white sandstone of fine grain with presence of oxidation, with quartz veins
271.820.01fault breccia.  Molonitic texture, sericitized.
282.420.03white sandstone of fine grain with presence of oxidation, with quartz veins, pyritization and presence of manganese
292.60<0.01white sandstone of fine grain with presence of oxidation, with quartz veins, pyritization and presence of manganese
302.54<0.01white sandstone of fine grain with presence of oxidation, with quartz veins, pyritization and presence of manganese
312.86<0.01white sandstone of fine grain with presence of oxidation, with quartz veins, pyritization and presence of manganese
322.800.05white sandstone of fine grain with presence of oxidation, with quartz veins, pyritization and presence of manganese
332.32<0.01white sandstone of fine grain with presence of oxidation, with quartz veins, pyritization and presence of manganese
342.520.01white sandstone of fine grain with presence of oxidation, with quartz veins, pyritization and presence of manganese
353.100.01white sandstone of fine grain with presence of oxidation, with quartz veins, pyritization and presence of manganese
362.520.03white sandstone of fine grain with presence of oxidation, with quartz veins, pyritization and presence of manganese
372.940.17white sandstone of fine grain with oxidation and parallel lamination
382.78<0.01white sandstone of fine grain with oxidation and parallel lamination
392.640.02white sandstone of fine grain, oxidation, presence of Goethite and Siltstone
402.480.08white sandstone of fine grain and parallel lamination
412.680.11white sandstone of fine grain and presence of oxidation
422.480.02white sandstone of fine grain and presence of oxidation
432.460.02white sandstone of fine grain and presence of oxidation
442.600.08white sandstone of fine grain and presence of oxidation
452.640.02white sandstone of fine grain and presence of oxidation
463.240.17white sandstone of fine grain with presence of oxidation, with quartz veins and presence of manganese
473.520.11white sandstone of fine grain with presence of oxidation, with quartz veins and presence of manganese
482.580.19white sandstone of fine grain with presence of iron nodules. Presence of oxidation.
491.700.02white sandstone of fine grain with presence of iron nodules. Presence of oxidation.
502.140.01white sandstone of fine grain with presence of iron nodules. Presence of oxidation.
512.260.01white sandstone of fine grain with presence of iron nodules. Presence of oxidation.
522.180.05white sandstone of fine grain with presence of iron nodules. Presence of oxidation.
532.20<0.01white sandstone of fine grain with presence of iron nodules. Presence of oxidation.
542.440.02white silicified sandstone of fine grain with presence of oxidation, with veings of quartz and presence of manganese
553.140.03white silicified sandstone of fine grain with presence of oxidation, with veinings of quartz and presence of manganese
562.640.02white sandstone of fine grain with presence of oxidation, oolitic hematite, quartz veins.
573.980.02white sandstone of fine grain with presence of oxidation and parallel lamination
583.420.01white sandstone of fine grain with presence of oxidation and parallel lamination
597.180.01Andesite dyke, silicified sandstone
602.44<0.01Andesite dyke, silicified sandstone
612.22<0.01white sandstone of fine grain with presence of oxidation, with quartz veins and presence of manganese and iron.
622.580.01white sandstone of fine grain with presence of oxidation, with quartz veins and presence of manganese and iron.
632.480.07white sandstone of fine grain with presence of oxidation, with quartz veins and presence of manganese and iron.
642.40<0.01white sandstone of fine grain with presence of oxidation, with quartz veins and presence of manganese and iron.
652.880.11white sandstone of fine grain with presence of oxidation, with quartz veins and presence of manganese and iron.
662.581.13white sandstone of fine grain with presence of oxidation, with quartz veins and presence of manganese and iron.
672.660.05white sandstone of fine grain with presence of oxidation, with quartz veins and presence of manganese and iron.
682.280.37white sandstone of fine grain with presence of oxidation, with quartz veins and presence of manganese and iron.
692.261.74white sandstone of fine grain with presence of oxidation, with quartz veins and presence of manganese and iron.
702.4811.3white sandstone of fine grain with presence of oxidation, with quartz veins and iron. Manganese Druse.
712.340.10white sandstone of fine grain with presence of oxidation, with veins of quartz and iron.
722.580.02white sandstone of fine grain with presence of oxidation, with veins of quartz and iron.
731.780.10white sandstone of fine grain with presence of oxidation, with veins of quartz and iron.
742.320.63white sandstone of fine grain with presence of oxidation, with veins of quartz and iron.
752.900.51sandstone medium to fine grain, presence of parallel lamination and oolitic oxidation
762.920.07sandstone medium to fine grain, presence of parallel lamination and oolitic oxidation
773.040.17sandstone medium to fine grain, presence of parallel lamination and oolitic oxidation
781.860.10sandstone medium to fine grain, presence of parallel lamination and oolitic oxidation
792.820.03sandstone medium to fine grain, presence of parallel lamination and oolitic oxidation
802.500.01sandstone medium to fine grain, presence of parallel lamination and oolitic oxidation
812.700.04sandstone medium to fine grain, presence of parallel lamination and oolitic oxidation
822.760.16sandstone medium to fine grain, presence of parallel lamination and oolitic oxidation
832.180.23sandstone medium to fine grain, presence of parallel lamination and oolitic oxidation. Manganese veining
842.580.11sandstone medium to fine grain, presence of parallel lamination and oolitic oxidation. Manganese veining
853.240.08Argillitic and sericite alteration, presence of stockworks of hematite with very sericitized chlorite suture
862.440.13Argillitic and sericite alteration, presence of stockworks of hematite with very sericitized chlorite suture
871.940.15Argillitic and sericite alteration, presence of stockworks of hematite with very sericitized chlorite suture
882.240.06very sericitized sandstone, with sericite and quartz
893.000.37very sericitized sandstone, with sericite and quartz
902.600.02very sericitized sandstone, with sericite and quartz
912.240.07very sericitized sandstone, with sericite and quartz
922.56<0.01silicified sandstone with sericitization and quartz.  Presence of quartz, iron, manganese, chlorite.
932.400.02silicified sandstone with sericitization and quartz.  Presence of quartz, iron, manganese, chlorite.
942.140.15silicified sandstone with oxidation
952.30<0.01silicified sandstone with oxidation
962.380.09silicified sandstone with oxidation
972.660.02silicified sandstone with oxidation
982.600.01silicified sandstone with oxidation
992.440.21silicified sandstone with oxidation
1002.38<0.01silicified sandstone with oxidation
1011.760.20silicified sandstone with oxidation

Our study was carried out about 0.20 kms southeast of the first of 12 holes Ingeominas drilled in 1996-97.

The core retrieved from TAR24_DH_022 provided important information about the stratigraphy and revealed a second instance of the previously unsuspected conglomerate seen also in the Gallinero 1 and 2 approximately 0.39 kms to the north west; the remainder comprised of sandstone.  

Further studies of this will help the company’s technical committee have a better understanding of the stratigraphy, its porosity and fracturing. This will contribute to a more comprehensive hydrogeological picture in the ridge and make important comparisons to existing Colombian government geological surveys of the stratigraphic layering, and confirm, correct, or enhance the detail of those.

Erik Ostensoe, P.Geo., a geological consultant to the Company and a Qualified Person as defined by National Instrument 43-101, has reviewed the TAR24_DH_022 cores and approves the scientific and technical disclosure in this news release.

About Cosigo Resources

Cosigo Resources Ltd. is a junior exploration company trading on the TSX Venture’s NEX Exchange (symbol CSG.h). The Company is exploring and developing its 100% owned properties in the Taraira Gold District in south-east Colombia near the border of Brazil. The Company also holds a 100% interest in the Willow Creek property, located near Winnemucca in the northern sierras of Nevada, a 100% interest in the Damian property in the Cordillera region of Colombia, and owns 13.26% of DHK Diamonds Inc. a company exploring for diamonds in the DO27 region of the NorthWest Territories of Canada.

To find out more about Cosigo Resources visit our website at www.cosigo.com.

FOR MORE INFORMATION CONTACT:
Cosigo Resources Ltd.

Andy Rendle
President & COO
Andy@Cosigo.com