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File Created: 03-Mar-2014 by Nicole Barlow (NB)
Last Edit:  03-Mar-2014 by Nicole Barlow (NB)

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NMI
Name ZIG ZAG, ZIGZAG, SUNSHINE Mining Division Nelson
BCGS Map 082F065
Status Showing NTS Map 082F11E
Latitude 049º 06' 21'' UTM 11 (NAD 83)
Longitude 118º 35' 02'' Northing 5440429
Easting 384398
Commodities Lead Deposit Types K02 : Pb-Zn skarn
Tectonic Belt Omineca Terrane Quesnel
Capsule Geology

The Zig Zag occurrence is situated on the north side of Busk Creek within the Kokanee Creek property, on the east side of Kokanee Creek, north of the West Arm of Kootenay Lake, approximately 1.6 kilometres northeast of Crescent Bay and 19 kilometres east of Nelson.

The area is underlain by Late Precambrian to Cretaceous volcanic and sedimentary rocks. Jurassic to Cretaceous Nelson and Valhalla intrusives and Tertiary alkalic plutons intrude the volcanic and sedimentary units. The region has been metamorphosed to lower to middle greenschist facies with associated chlorite, epidote, biotite hornfels and minor amphibole. Contact metamorphism related to Nelson and later intrusives occurs in both the volcanics and sediments. Regional structure is dominated by a series of north-northwest–trending tight folds and shears.

In the Kokanee Creek area, Slocan Group basal slates and phyllites with lesser fine-grained quartzite and limestone beds are overlain by well-bedded, arenaceous quartzite argillites with local impure quartzite and limestone. The top of the argillite section is marked by tuffaceous lava beds, likely related to early Rossland Group volcanism. Jurassic Nelson intrusives consist of porphyritic granite, granodiorite, diorite, quartz diorite, monzonite and hornblende syenite. Several smaller alkaline plugs belong to the Tertiary (Eocene) Coryell Batholith.

The claim area is underlain by a metasedimentary roof pendant remnant within the Middle Jurassic Nelson Batholith. The roof pendant is predominantly composed of argillic siltstone (siltite) and biotite schist mixed with Nelson paragneiss. Siltstones are exposed along the Lower Kokanee Creek Road and the Upper Busk Creek Road. Large rusty quartz veins intrude host sedimentary rocks. Some of the veins contain muscovite and form minor stockworks. Sulphide mineralization on the property includes coarse-grained euhedral galena, coarse-grained euhedral pyrite cubes and associated pseudomorphs, in addition to fine-grained disseminated arsenopyrite.

The Zig Zag showing consists of two outcrops identified by Dennis Bialkoski in 1980. The first outcrop was a 0.9-metre-wide, highly oxidized exposure situated at approximately 1150 metres elevation along a rough four-wheel-drive road. One sample was collected from a muck pile at this location. The second outcrop consisted of a 0.9-metre-wide highly oxidized shear zone striking 350 degrees and dipping 40 degrees southwest. Pods of fine-grained galena up to 7.5 centimetres in thickness were exposed at the outcrop. Approximately 3 metres below the outcrop, the oxidized zone narrowed to 0.3 metre in width. A 0.9-metre chip sample was taken across a shear-altered area believed to have originally been biotite granodiorite; however, results of the sampling are unknown.

Sometime prior to 1980, the Zig Zag claims were staked over the showing on the western portion of what had been known as the Sunshine claim group.

In 1979, Anton Nyhuis staked the Big ‘M’ claim group on the south side of Busk Creek. Nyhuis prospected the claims and collected six soil samples and one rock sample before selling the claims to Robin W. Pearson in January 1980. That summer, Pearson Gallagher Limited conducted a magnetometer survey over the area of the Kok showing (MINFILE 082FNW210).

In 1996, the Home claims were staked over the area by Eagle Plains Resources Limited and Miner River Resources Limited as part of the Kokanee Creek property. From 1996 to 1997, Eagle Plains Resources completed silt and soil geochemical surveying, diamond drilling, chip sampling and 3.5 kilometres of horizontal loop electromagnetic geophysical surveying. In total, 445 metres of NQ diamond drilling was completed in five holes situated south of Busk Creek and east of Kokanee Creek. An airborne electromagnetic geophysical survey was flown over the property by Eagle Plains Resources in 2004. Field work that year included geological mapping and soil (125 samples) and silt (15 samples) geochemical surveying.

Bibliography
EMPR ASS RPT 8725, 25105, 27749
EMPR PF (Bialkoski, Dennis [02/09/1980]: Notes - Sunshine Claims (Zig Zag) - Nelson Area; Unknown: Claim Map – Zig Zag, Mount Yuill Area; Unknown: Claim Map – Zig Zag Claims, Mount Yuill Area)
GSC OF 1195
GSC MEM 1960-308

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