The Green occurrence is located 75 kilometres southeast of Cranbrook in southeastern British Columbia.
Two major units of the Helikian Purcell Supergroup are recognized on the Green property. The oldest is the Sheppard Formation comprised of sandstone and conglomerate locally at the base, and dolomitic quartzite, sandstone, oolitic dolomite and stromatolitic dolomite at the top. The Nicol Formation is comprised of massive to amygdaloidal basaltic to andesitic lava flows, volcanic and feldspathic sandstone and siltite. Green, locally purple volcaniclastic siltite, fine wacke and tuffaceous siltstone are also part of the Nicol Formation. The Sheppard Formation is gently warped, with dips up to 15 degrees to the east.
Several modes of mineralization are evident on the property: 1) disseminated chalcocite and chalcopyrite occur in sandstones below a stromatolitic dolomite horizon; 2) quartz-barite veins containing scattered patches of chalcocite and chalcopyrite (+/- specularite); 3) weak disseminated chalcopyrite +/- chalcocite within the lowermost one metre of stromatolitic dolomite at the base of the Sheppard Formation; and 4) one occurrence of a fine-grained syenite dyke with quartz-barite veinlets carrying disseminated chalcopyrite.
Trenching at the Green prospect in 1989 revealed an area exhibiting the first mode of mineralization (see above), returned an assay high of 1.93 per cent copper over 6 metres. Low grade silver values up to 9 grams per tonne were also recorded from a chip sample measuring less than or equal to 1 metre, depending on the quality of the sketch showing the details (Assessment Report 19898, Figures 6 and 13).
Eight holes were drilled from three drill sites by Teck in 1990, totalling 605.6 metres of NQ core ((Figure 5) (Awmack, 1991 (Property File Document (PFD 520455)). Five holes (R90-01 to -05) were drilled in a fan from one setup now at the Green prospect. This drill-site was located a few metres above the lowermost stromatolitic dolomite horizon in the area of Teck's 1989 trenching. Mineralized intersections were cored in holes R90-04 (11.05 metres grading 0.81 per cent copper) and R90-05 (4.11 metres grading 1.07 per cent copper). As shown in Figure 7 (PDF 520455), this mineralization is separated from excellent trenching results (up to 6.0 metres grading 1.93 per cent copper) by three blank holes (R90-01 to -03). A flat fault, exposed in a road cut at the site of Trench 5 and marked by fault gouge and poor core recovery in drilling, cuts the mineralized sandstones in each of the drill holes. This fault appears to have offset mineralization such that no significant copper was encountered in holes R90-01 to -03. Drilling in 1990 intersected 11 metres grading 0.806 per cent copper (Assessment Reports 20700 and 22644).
WORK HISTORY
Cominco reported that several short workings were driven on quartz veins in the area of their Phillips Creek claims (Assessment Report 1023). These include 4 shafts (6-15 metres), 4 adits (up to 33 metres) and at least 6 open cuts (3 to 6 metres long). This work was completed prior to 1940 and was reported to have been done main about 1900. In 1966 and 1967, Cominco completed 4570 metres of cat road and 1483 cubic metres of stripping.
In 1967, Cominco Ltd. conducted exploration on the Phillips’s Creek claims (on the north side of Phillips Creek largely overlapping the more recent Robocop claims). A soil survey was completed with samples collected from the top of the B-horizon. It was highlighted that chalcopyrite of significant concentration occurred at the upper contact of the lower Sheppard Formation (Assessment Report 1023). Assessment Report 19898 reports that in 1967 Cominco additionally conducted a bulldozer-type trench program consisting of 5 trenches to re-evaluate copper occurrences. Thompson (1990) concluded the mineralization to be attributed to synkinetic diking however this information was not included in the original Cominco report.
In 1989, Teck Exploration Ltd. (Teck), conducted exploration activities on the Roo 1-3 claims (which were staked by, and under option from, Equity Engineering Ltd.). The work conducted is within the current Robocop Property. The program consisted of mapping, soil sampling (114 samples) and eight backhoe trenches (totalling 250 metres) aimed at evaluating sediment hosted copper-silver-cobalt showings (Assessment Report 19898); Assessment Report 22644). Four individual trenches and four interconnected trenches investigated copper mineralization previously highlighted by Cominco; these were backfilled at the end of the program. The showings were noted to be located at the base of a stromatolitic dolomite horizon. The best assays results included 1.93 per cent copper and 0.058 per cent cobalt over 6 metres (Assessment Report 19898); Assessment Report 22644). This trenching occurred about 350 metres north-northeast upslope from the Green occurrence (082GSW020). Sampling was done at the Roo (082GSW019) showing and minor mapping occurred at the Phillips Creek past producer (082GSE001). Three samples were collected about 500 metres northwest of the Wolf showing (082GSE009).
In 1990, an eight-hole (R-90-1 to R-90-8) diamond drilling program totalling 605.6 metres (NQ-sized) was conducted by Teck on the Roo 1-3 claims (Assessment Report 20700). The 1990 exploration program was a continuation of the geological and trenching program carried out by Teck Explorations in September 1989. The drill program covered three sites spaced approximately 570 metres apart, based on the 1989 Tech exploration program. Five holes (R90-1 to 5) were drilled from one setup in the 1989 trenched area. The Green prospect (082GSE020) location was later moved to the location of drill holes R90-1 to 5). Drill hole R90-6 was drilled 460 metres southeast of holes 1 to 5, along the same road where the 1989 trenching occurred. Holes R90-7 and 8 were drilled from the same setup about 650 metres to the southeast from R90-6, along the same road. The area of drill hole R90-7 and 8 area was later designated Copper Corner (Assessment Report 29941). A total of 29 drill core samples were sent for analysis and it was noted that copper occurrences were concentrated at the top of a sequence of quartzo-feldspathic wackes, beneath a stromatolitic horizon. Teck dropped its option upon completion of the drill program. Copper grades from 4 of the drill holes returned approximately 1-2 per cent copper (Assessment Report 22644). Highlights include a best assay of 0.806 per cent copper over 11 metres and a mineralized zone ranging from 1-5 metres was intersected. Mineralization was noted along fracture surfaces and in voids as malachite or chalcocite. Additionally, 28 soil samples were collected from three different areas: along the base of the stromatolitic horizon, from the west extension of the 1989 soil survey, and from southwest (SW) corner of the Property. It was concluded that samples (SS-29, 30, 31, 32, 34) taken from the SW corner of the property yielded the best results. Further exploration was recommended along the Sheppard Formation sequence (Assessment Report 20700). The following year in 1991, Equity Engineering Ltd. added the Roo 4-7 claims to the Roo Claims Group (Assessment Report 22644).
In 1992, Noranda Exploration Company Ltd. (Noranda), undertook exploration activities on the Roo 1-7 claim group (which largely overlaps the current Robocop Property). Exploration included 11.2 kilometres of mapping focused on the Lower Sheppard horizon to get a better understanding of the stratigraphy that hosts mineralization and to highlight any controls on mineralization. Mapping identified a north trending normal fault interpreted to be active during the deposition of the Lower Sheppard Formation thought to be a rift related structure along the north trending graben. The 1992 exploration program also included a small rock sampling program (16 samples); the best results were returned from the Roo Horizon and included chalcopyrite, bornite, pyrite and chalcocite mineralization. The mapping program also highlighted a notable sulphide-oxide trend that runs perpendicular to the Lower Sheppard basin for over 1200 metres and found chalcopyrite to be present in many outcrops in the Phillips Creek area. The soil sampling program consisted of 103 samples (from the B-horizon) mainly taken in the area south of Phillips Creek with anomalies yielding from 51 parts per million copper to 578 parts per million copper (Assessment Report 22644). Other work was done on Rainbow Creek.
In 1993 Noranda held the Roo 1-7 claims as well as surrounding claims (Surf, Surf-1 and Mill claims) and conducted a three-hole diamond drilling program totalling 475.5 metres (NQ-sized core) on the Roo Belt claim group. The program was designed to assess the dip and strike extension of the known copper-cobalt-silver mineralization highlighted by Teck’s previous drilling (1990). Two drill holes (R-93-9 and 10) were put down on the Green showing (082GSW 020) with a third (R-93-11) put down about 500 metres to the southeast, about 100 metres northeast of 1989 drill hole R-90-6. Results identified the Roo Horizon to be an arkosic pebbly-sandstone within the upper portion of the Lower Sheppard Formation overlain by a purple mudstone identified to be a volcanic flow unit and bounded below by an intrusive sill. The best assay from the 1993 drill program from the Roo Horizon was 0.067 per cent copper, 0.024 per cent cobalt over 1.4 metres from drill hole R93-9. At this time it was concluded that the potential for a sizeable deposit of sufficient tonnage and grade was limited (Assessment Report 23083).
In 2004 operator Peter Klewchuck commissioned a reconnaissance VLF-EM survey over the Robocop Property to identify possible fault structures related to copper mineralization. Two anomalies were identified in the vicinity of known occurrences of copper mineralization the western one of which has been previously trenched and diamond drilled. The anomalies were interpreted to highlight growth fault(s) that may have influenced copper-cobalt deposition and/or mineralisation (Assessment Report 27690). The eastern anomaly appears to be coincident with MINFILE Roo occurrence plot (082GSW019). The western anomaly is coincident with trenching and drilling at the Green prospect (082GSW020).
The 2007 rock sampling program (70 samples) focused on mineral occurrences in the Phillips Creek area. The main copper-cobalt showings on the property are located within the Roo Horizon but the sampling program uncovered mineral showings within quartzites and stromatolites above the Roo Horizon and in volcanic stratigraphy below the Roo Horizon. The soil sampling program consisted of three lines of contour soil samples with the majority of the sampling conducted within the current property. The second line, running, northwest to southeast, showed a significant anomaly running over a kilometre in length with values up to 313 parts per million copper (Assessment Report 29941). This second line was between Phillips Creek and Wolf (082GSE009) and Cabin (082GSE010) showings to the north. The third soil sample line showed a moderate anomaly, trending over 700 metres, and is potentially related to the Miller Creek showing in the vicinity. The 2007 trenching program by Ruby Red Resources was designed to re-assay the Roo showing and assess the style of mineralization. Five historic trenches were reopened, and Trench number 5 was noted to display copper-bearing barite veins. All trenches to date have been completed in the same vicinity and lie within the current Property. Sampling was done at/near Green, Roo, Phillips Creek, Wolf (082GSE009) and the Miller Time (082GSW094) showing on the northern slopes of Miller Creek. Mapping and sampling occurred on the SE trending roads that are north and south of Wolf and Cabin showings.
In 2008, Ruby Red Resources drilled 6 diamond drill holes (R-08-1 to R-08-6) totaling 868.5 metres on the Robocop Property to test a sediment-hosted copper-cobalt deposit. Drill hole R-08-3 to R-08-5 were put down in the Green prospect area. Holes R-08-1 and R-08-2 were put down in the Roo prospect area (082GSW019). Anomalous results were reported from 4 holes with the best results from hole R-08-3 which returned 0.48 per cent copper, 2.7 grams per tonne silver and 0.021 per cent cobalt over 7 metres (Assessment Report 30693). Mineralization in the hole was identified as limonite, pyrolusite, black copper oxide, malachite, pyrite and rare chalcopyrite occurring as disseminations and fracture filling in the arkosic conglomerate. Exploration activities also included surface geological mapping in the area of drilling as well as a soil sampling program that identified a copper-cobalt anomaly 1.7 kilometres in length southeast of the historical drilling.
In 2011, operator Kootenay Silver conducted an exploration program on the Green Economy and Robocop mineral claims consisting of prospecting, rock sampling and reconnaissance mapping on Rainbow, Miller and Scherf creeks, and the area north of Phillip's Creek (Assessment Report 32994). 14 samples were collected and analyzed with the best results obtained from a large zone of altered Lower Sheppard Formation conglomerates and trachyte south of Scherf Creek, later (2022) added to MINFILE as the Scherf showing (082GSW094). Significant results were also obtained from sampling on Miller Creek (082GSW093). One sample with low results was taken along Rainbow Creek.
In 2012, APEX Geoscience Ltd. was commissioned by Peter Klewchuk to complete a thorough data compilation for the Robocop Property and provide a 3-D model and geologic interpretation of the area. The data compilation database was assembled through all available historic drill hole, trench, rock sample and soil sample information, as well as all geological and assay data formatted for use in Micromine and ArcGIS software. The drill database was comprised of 15 historic drill holes including 325 samples assayed for gold, silver, copper, cobalt, manganese, mercury, and sulphur. Due to the various lithological descriptions and unit names used over time, correlation of the detailed geological units was impossible. One sample was collected during a field visit (12MDP100), which returned an assay of 1.63 per cent copper, 4.1 grams per tonne silver, and 0.1 per cent cobalt, confirming historic results from the area (Assessment Report 33679).
The 2014 and 2015 exploration programs on the Robocop property by APEX Geoscience Ltd. (for owner Robert Klewchuk) comprised prospecting and GPS mapping of the stratabound copper mineralisation within the Sheppard Formation. A total of 48 rocks were collected in 2014. Several samples were collected from the Green, Roo, and Phillips Creek showings to verify the historic results. Areas with historic elevated copper values in soil anomalies were also targeted for sampling. A total of 21 rock samples were collected throughout the property in 2015. A total of 69 rock samples were collected throughout the property in the 2 years, of which eight returned values greater than 0.1 per cent copper (Assessment Reports 35523, 36067). Sample 15MGP024 (quartzite) was collected northwest of the Green prospect and returned an assay of 0.92 per cent copper significantly extending the known mineralized zone.
In 2016, APEX Geoscience Ltd. (for owner Robert Klewchuk) conducted rock and soil sampling and survey programs on the Robocop property targeting the Sheppard Formation. A total of 173 soil samples were collected, 5 of which returned anomalous copper values between 55 parts per million and 121 parts per million. The objective of the soil program was not only to duplicate and expand historic soil geochemistry results in and around the Green, Roo, and Phillips Creek Prospects, but to ascertain the extent of mineralisation along the Roo Horizon trend. The results of the soil geochemistry show the anomalous copper and cobalt results at or below the Roo Horizon on eight of the ten sampling lines. 7 rock samples were collected, two of which returned assay values of 0.44 per cent and 0.59 per cent copper (Assessment Report 36484). The latter was the highest value of the 2016 samples, which extended to the known mineralization of the Green prospect 300 metres east-northeast. A 4.56-line-kilometres ground magnetic survey was conducted to help better define the Nichol Creek Formation (Figure 3). A drone survey was also completed over 144 hectares of the Property, resulting in a high resolution orthoimage.
The 2018 exploration program of Grizzly Discoveries Inc. on the Robocop property consisted of rock sampling and geologic mapping (Assessment Report 37745). The rock sampling program targeted the strata bound copper mineralization within the Sheppard Formation of the Purcell Supergroup. A total of 39 rock samples were collected, returning 11 samples with anomalous copper values ranging from 0.069 per cent to greater than 1 per cent, and four samples with greater than 0.27 per cent copper. Analysis of cobalt returned one anomalous sample with greater than 0.034 per cent cobalt. Rock sample 18KRP501 (1.46 per cent copper) was collected approximately 80 metre west-northwest of the historic Green showing and fits with previously identified trends potentially extending the mineralization. Sample 18MAP020 also returned a value greater than 1 per cent copper from the northern claim (Scherf and Miller creeks) approximately 3.5 kilometres north of previously identified mineralization. Local outcrop mapping was done on the northern claim to see if the prospective lower Sheppard Formation and the underlying contact, with the Nicol Creek Formation, could be identified and a northern extension of the units mapped. Sampling was completed in the Green (082GSW020), Roo (082GSW019), and Philips Creek (082GSE001) as well as along Rainbow, Miller and Scherf creeks. New MINFILE showings are the Miller Time (082GSW093) and Scherf (082GSW094) showings.
The 2021 exploration program of Grizzly Discoveries Inc. on the Robocop property consisted of rock and soil sampling, geologic mapping, and an airborne magnetic and electromagnetic geophysical survey (Assessment Report 39963).
See Roo (082GSW019) for related geological details.
