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| SCOTCH CREEK | Au Ag Cu | (BIF) BANDED IRON FORMATION | BRITISH COLUMBIA |
| Geology: Underlain by the Lower Cambrian Johnson Lake unit of the Eagle Bay assemblage. Dominant rock type is pyritic, mafic to intermediate volcanic unit which has undergone greenschist facies metamorphism. Eagle Bay Formation is a west-northwest trending sequence of Devonian-Mississippian mafic to felsic meta-volcanics and volcaniclastics, quartzite, siliceous carbonates, interbedded black argillites, conglomerate and sandstone. Geological mapping has defined four distinct rock units and located areas of widespread iron formation. Iron formation has been folded and re-folded into an overturned NW-plunging anticline. The iron formation has been known to thicken up to 13 metres (42 feet) in the hinge zones. |
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| Mineralization: A pyritic, ferruginous chert horizon (siliceous oxide facies iron formation) traced and drill-tested over a strike length of at least 1300 m. Typical exposures are mottled grey and black to mottled grey and purple. Generally, it is aphanitic to fine grained with locally intense quartz-carbonate veining. Banding is visible locally. Iron mineralization includes local jasper to 10 %, magnetite to 50 % and hematite to 30 %. Pyrite content ranges from trace amounts to 15 % and occurs as disseminated cubes between 0.5 and 8 mm. Trace chalcopyrite present locally. Pyrite occurs as disseminated, oxidized, euhedral porphyroblasts in various rock types. Coarse to finely disseminated pyrite occurs in quartz sericite schists, quartz veins, chlorite schists, iron formation, greenstones and fractures. Limonite staining and limonite-lined, cubic vugs are very common. Hematite and specular hematite occur to a lesser degree. |
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| Work: 1885-1887: Scotch Creek area first recognized as a placer gold camp Early to mid 1980's: exploration by MPH Consulting Limited; primary target was an auriferous siliceous oxide facies iron formation. (Nexus Resource Corporation) Present: Placer gold mining activity continues on Scotch Creek. |
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| Results: Property was been located to cover a large area of gold soil anomalies, showings and gold-bearing stratigraphy. Widespread soil and rock chip geochemistry has identified highly anomalous gold and multi- element values. Gold grades tend to increase with quartz carbonate alteration and the amount of pyrite present.
Placer gold also recovered from Hlina Creek; in an area directly below the property. Scotch Creek property is on a large prominent, fairly flat topped ridge between the Au- bearing Scotch and Hlina creeks. Previous trench sampling returned 0.045 oz/t Au over 5.9 m. Other trench samples range from 10 ppb to 7000 ppb (7 gpt) Au over widths of up to 4.6 m. 1986 diamond drilling intersected Iron formation ranging in thickness from 0.23 m to 13.09 m. And having a combined thickness of up to 32.42 metres (105 feet). Au grades increase towards the hinge zone. Drill Core samples of the iron formation analyzed up to 9.05 g/t Au and 29.0 g/t Ag over 0.22 m, and 1.21 g/t Au and 1.1 g/t Ag over 5.46 m. Chip samples over 1.3 m have returned 4.20 g/t Au. Rock sampling results range up to 26,000 ppb (26 gpt) Au from an altered andesite and silicified chlorite shist. Three of the four known siliceous iron oxide formation outcrop areas have associated Cu soil anomalies. At least eight areas anomalous in Ag are scattered throughout the grid area; seem to correlate with areas limestone sub-crop. A large Ag-Pb soil anomaly is located near a magnetic high. Two unexplained anomalous RGS till samples (17 ppb and 42 ppb Au) near southern portion of the property may be derived from an extension to the auriferous iron formation. An old shaft and several old trenches have been located on the property this is probably the old Shuswap occurrence; described as several opencuts and two adits driven on a 1.8-m wide quartz vein containing segregation's of galena and pyrite in schistose rocks (Minister of Mines Annual Report 1934, page D29). Old trenches explored chalcopyrite-pyrite-galena mineralization in stockwork quartz veins. A chip sample taken in 1984, over 0.5 m ran 1.18% Cu. A chip sample taken from an altered, interlaminated siltstone with fine-grained sandstone analyzed 1.3 g/t Au.
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| Property Details & Access: 20 units, 500 ha Accessed via the Trans Canada Highway and all-weather gravel roads; logging roads to showings and drill sites. |
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| Detail Location: Kamloops M.D. NTS 82L/14W; Latitude, 50o58' N and Longitude 119o25' W North of Shuswap Lake between Scotch and Hlina creeks |
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| Other Comments: Gold mineralization on the Scotch Creek property was said to be comparable to known large tonnage gold deposits in eastern Canada, such as the famous Dome mine, in the Opapimiskan Lake area. This was based on geology, geochemistry, structural controls and associated economic grades of mineralization. Iron-formation hosted gold deposits, rank as world class and remain attractive exploration targets. For example, the great Homestake mine has produced approximately 300 tonnes of gold since starting production in 1876. |
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| Vendor / Contact: Craig Lynes Rich River Exploration Ltd. PO Box, 131 Grindrod BC, V0E-1Y0 Phone: 250-832-2089 Email: prospect@richriver.bc.ca bc40Submitted: 09/09 |
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