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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  15-Aug-1996 by Keith J. Mountjoy (KJM)

Summary Help Help

NMI
Name NORTH Mining Division Greenwood
BCGS Map 082E045
Status Prospect NTS Map 082E06E
Latitude 049º 27' 56'' UTM 11 (NAD 83)
Longitude 119º 06' 58'' Northing 5481364
Easting 346675
Commodities Silver, Lead Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Omineca Terrane Plutonic Rocks, Harper Ranch
Capsule Geology

The North prospect is located at about 1219 metres elevation on the eastern slopes of Cranberry Ridge, 4 kilometres northwest of Beaverdell, British Columbia. The Lucky Boy occurrence (082ESW152) is located about 750 metres southeast on the Lucky Boy claim group Crown grants.

Evidence of previous exploration and development work consists of a 13-metre long adit and several pits. However, no records of exploration or development work could be found. In 1988, Dryden Resources Corp. conducted an exploration program of geological mapping, soil geochemical sampling and electromagnetic and induced polarization geophysical surveys.

The hostrocks underlying Cranberry Ridge, immediately west of Beaverdell, are similar to that underlying Mount Wallace to the west. Granodiorite of the Jurassic Westkettle batholith, grading to quartz diorite and diorite, underlies most of Cranberry Ridge. To the immediate north, the Westkettle batholith has intruded Permian Wallace Formation metavolcanics and metasediments, now present as roof pendants. Lithologies include greenstone, quartzite, greywacke, limestone and local paragneiss. Younger Eocene intrusions of granite to granodiorite or quartz monzonite to syenite composition and associated dikes have intruded both Westkettle granodiorite and Wallace Formation rocks.

An abandoned adit, discovered at the North occurrence in 1986, was drifted along a 0.60 to 1.5-metre wide quartz vein with disseminated pyrite and minor galena. The vein strikes 060 degrees and dips 55 degrees southeast. The hostrock is granodiorite with strong chlorite and sericite alteration.

Twelve chip samples along 8.5 metres of the quartz vein and wallrock over an average width of 50 centimetres yielded an average of 0.28 per cent lead and a high of 32.57 grams per tonne silver (Sample R-20) (Assessment Report 17921).

Bibliography
EMPR ASS RPT *17921
EMPR OF 1989-5
GSC MAP 538A; 539A; 37-21; 15-1961; 1736A
GSC MEM 79
GSC OF 481; 637; 1505A; 1565; 1969
GSC P 37-21

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