BC Geological Survey Assessment Report 38289
Total Page:16
File Type:pdf, Size:1020Kb
OWNER(S): Glen Prior MAILING ADDRESS: 793 Birch Avenue, Sherwood Park, Alberta T8A 1X2 OPERATOR(S) [who paid for the work]: Glen Prior MAILING ADDRESS: 793 Birch Avenue, Sherwood Park, Alberta T8A 1X2 REPORT KEYWORDS (lithology, age, stratigraphy, structure, alteration, mineralization, size and attitude. Do not use abbreviations or codes) Spike Peak intrusive suite, Middle Jurassic, quartz monzonite, porphyry copper, propylitic alteration, chalcopyrite, malachite, Babine Lake, Tachek Creek REFERENCES TO PREVIOUS ASSESSMENT WORK AND ASSESSMENT REPORT NUMBERS: Assessment Report Numbers: 34801, 34333, 33645, 31660, 26329, 25511, 22025, 20794, 19556, 16874, 4479 (see also Previous Work section of report). TYPE OF WORK IN EXTENT OF WORK ON WHICH CLAIMS PROJECT COSTS THIS REPORT (in metric units) APPORTIONED (incl. support) GEOLOGICAL (scale, area) Ground, mapping Photo interpretation GEOPHYSICAL (line-kilometres) Ground Magnetic Electromagnetic Induced Polarization Radiometric Seismic Other Airborne GEOCHEMICAL (number of samples analysed for …) Soil Silt 2 samples TAC Title No. $4,980.87 Rock 1060516 Other DRILLING (total metres, number of holes, size, storage location) Core Non-core RELATED TECHNICAL Sampling / Assaying Petrographic Mineralographic Metallurgic PROSPECTING (scale/area) PREPATORY / PHYSICAL Line/grid (km) Topo/Photogrammetric (scale, area) Legal Surveys (scale, area) Road, local access (km)/trail Trench (number/metres) Underground development (metres) Other TOTAL $4,980.87 COST TAC Property Rock Geochemistry, Omineca Mining Division, British Columbia Claim: TAC (Title Number 1060516) Mining Division: Omineca NTS Map Sheet: 93L/09 Location: 54.744° N Latitude, 126.183° W Longitude Owner: Glen Prior Sherwood Park, Alberta Author: Glen Prior Sherwood Park, Alberta Date Submitted: 2019-May-29 Statement of Work Event Number: 5740843 Table of Contents Summary 1 Introduction 2 Location and Access 2 Claim Description 2 Physiography 2 Previous Work 6 Geological Terrane Setting 10 Regional Geology 11 Property Geology 14 Bedrock Geology 14 Surficial Geology 14 Mineralization 16 Highlights of Previous Exploration 16 Previous Drilling Results 16 Previous Trenching Results 19 2018 Exploration Program 20 Overview 20 Field Access 20 Trench Locations 20 Laboratory Methods 21 Geochemical Results 22 Discussion and Conclusions 34 Recommendations 35 References 36 Qualifications 39 Expenditures 40 ii Tables Table 1. Summary of copper, molybdenum and gold results for samples collected in 2010 from Altiplano Mineral Limited trenches TR10-08, TR10-09 and TR10-10. 19 Figures Figure 1. Location of the TAC property within British Columbia. 3 Figure 2. Location of the TAC property within NTS map area 093L/09. 4 Figure 3. Map showing claims and roads in the TAC property area. 5 Figure 4. Geological terranes of British Columbia showing location of the TAC property. 10 Figure 5a. Regional geology map. 12 Figure 5b. Regional geological lithology legend and stratigraphic chart. 10 Figure 6. Bedrock geology of the TAC property showing drill hole and trench data. 15 Figure 7. Bedrock geology of the TAC property showing 2018 sample data. 23 Figure 8. SiO2 versus Na2O+K2O alkaline – subalkaline diagram. 24 Figure 9. AFM diagram. 25 Figure 10. SiO2 versus K2O magma series classification diagram. 26 Figure 11. Upper half of QAPF diagram. 27 Figure 12. SiO2 versus Na2O+K2O rock classification diagram. 28 Figure 13. Zr/TiO2 versus SiO2 volcanic rock classification diagram. 29 Figure 14. Ternary CaO+Na2O–Al2O3–K2O molecular concentration diagram. 30 Figure 15. Molecular concentrations of (2Ca+Na+K)/Al versus molecular concentrations of K/Al. 31 Figure 16. Binary plot showing molar concentrations of Ca/Al versus showing molar concentrations of Mg/Al for 216 nonhydrated, subalkaline rhyolitic obsidian analyses published by the USGS. 33 Figure 17. Binary plot showing molar concentrations of Ca/Al versus showing molar concentrations of Mg/Al for two Tachek Creek south occurrence samples. 33 iii Appendices Appendix 1: Rock Sample Descriptions 42 Appendix 2: Analytical Results 44 iv Summary The TAC property, which consists of the 37.34 hectare TAC claim, is located in north-central British Columbia approximately 50 km northeast of Houston and 16 km south of Granisle. The centre of the property lies about 1 km east of Highway 118, which joins Topley on Highway 16 with Granisle, within the northern part of the Topley (93L/09) NTS map area. The TAC property is underlain primarily by quartz monzonite of the Middle Jurassic Spike Peak intrusive suite. The Tachek Creek south showing, which lies within the western part of the property, exhibits significant copper mineralization within a propylitic alteration zone believed to be part of a porphyry copper system. Two rock samples collected in 2018 returned up to 0.50% Cu and 0.86 g/t Au. Previous chip sampling has yielded values of up to 0.24% Cu over a length of 12.4 m. The best intersection obtained during previous drilling in 1969 and 1970 was 0.22% Cu over 42.7 m from percussion hole T-31 in the north-central part of the claim. The lowermost 15.2 m of this hole also returned an average of 0.094% MoS2. The only exposed bedrock on the property occurs along Tachek Creek, which is bordered by steep banks. Elsewhere drilling data indicates overburden depths across the property of 20 to 56 m. The thickness of the overburden makes the exploration effectiveness of conventional soil surveys and I.P surveys questionable. Exploration drilling within the boundaries of the TAC claim has been relatively shallow. Vertical depths vary from 61 to 127 m in eight holes (excluding two holes abandoned in overburden). It is recommended that a diamond drill hole be drilled to a vertical depth of approximately 300 m at a location about 100 m south of Noranda percussion hole T-31, which ended in mineralization at a depth of 76.2 m. The main purpose of the recommended hole would be to test the strength of the copper-molybdenum (+/- gold) mineralization at significantly greater depths than previous drilling. 1 Introduction Location and Access The TAC property is located in north-central British Columbia approximately 50 km northeast of Houston and 16 km south of Granisle (Figures 1 and 2). The centre of the property lies about 1 km east of Highway 118, which joins Topley on Highway 16 with Granisle, within the northern part of the Topley (93L/09) NTS map area. The western property boundary lies within 500 m of Highway 118. A logging road network extends eastward from an intersection with Highway 118 about 200 m south of Tachek Creek. These logging roads provide truck access to within 500 m of the eastern property boundary (Figure 3). Claim Description The TAC property consists of the TAC mineral claim (title number 1060516) within the Omineca Mining Division. The TAC claim was recorded on May 9, 2018 and covers 37.34 hectares. The TAC claim is owned (100%) by Glen Prior of Sherwood Park, Alberta. Physiography The TAC property lies within the Nechako Plateau, which forms the northwestern part of the Interior Plateau (Holland, 1976). Elevations across the TAC property vary from about 920 m to 960 m. Tachek Creek, which flows in a northerly direction towards Babine Lake, lies in the western part of the property. Tachek Creek is deeply incised into the landscape and has steep banks. Elsewhere the terrain is undulating with relatively gentle slopes. The property is heavily forested. 2 Figure 1. Location of the TAC property (black star) within British Columbia. Base map from B.C. Ministry of Energy and Mines MapPlace. 3 Figure 2. Location of the TAC property (black rectangle) within NTS map area 093L/09. Roads shown in red, NTS map sheet labels shown in green. Map data from digital files licensed under the Open Government Licence – Canada. 4 Figure 3. Map showing claims and roads in the TAC property area. Logging road locations in the TAC property area are based on field GPS data. Not all roads are shown. Base data includes information from BC Ministry of Energy, Mines and Petroleum Resources MapPlace and digital files licensed under the Open Government Licence – Canada. 5 Previous Work • 1968/69 (Noranda Exploration Limited) “Mineralization was recognized by prospectors in Tachek Creek and Noranda staked 170 claims to further test the area. In 1968 and 1969 work included: geological mapping, geochemical (soil and silt sampling) and geophysical surveys (both induced polarization and magnetic surveying), road building, 1,725 metres of percussion drilling and 1,015 metres of diamond drilling (Noranda Exploration Report, 1969)” (Strickland, 2012, p. 10). All of the Noranda drilling was undertaken in 1969 (Noranda, 1970). Seven holes from this program are located within the TAC claim. • 1968/69 (Tro-Buttle Exploration Ltd.) “A soil survey was undertaken intended to aid in the definition of a porphyry environment. A total of 47 line-miles were blazed, picketed and flagged and 1267 soil samples were collected (Dirom, 1969). Several anomalous copper and molybdenum values were found, but appeared discontinuous” (Strickland, 2012, p. 10). This work occurred north and east of the TAC claim. • 1970 (Taseko Mines Limited) “Taseko Mines Limited completed 3 diamond drill holes totalling 320 metres in 1970 …” (Carter, 1992, p. 2). These holes are located within the TAC claim. • 1970 (Tro-Buttle Exploration Ltd.) “A further geochemical survey was mounted to follow up the anomalies discovered in 1969 and complete coverage of the claims held at that time (Alrae Engineering Ltd., 1970). A further 24 line-miles of flagged lines were established and 680 new soil samples were collected. Additional anomalous copper values were identified. Alrae Engineering Ltd reported … that there were numerous samples with copper over 90 ppm, however the results are intermittent” (Strickland, 2012, p. 10). This work occurred northeast and east of the TAC claim. • 1972 (Twin Peak Resources Ltd. and Cobre Exploration Ltd.) “The porphyry copper occurrences of the Smithers-Babine Lake area contain varying amounts of disseminated magnetite associated with biotite alteration such that an airborne magnetic survey was undertaken….