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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  28-Nov-2013 by Karl A. Flower (KAF)

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Name JO JO Mining Division Alberni
BCGS Map 092F013
Status Showing NTS Map 092F03W
Latitude 049º 09' 47'' UTM 10 (NAD 83)
Longitude 125º 24' 03'' Northing 5448357
Easting 324978
Commodities Copper, Zinc, Lead Deposit Types I06 : Cu+/-Ag quartz veins
Tectonic Belt Insular Terrane Wrangell, Plutonic Rocks
Capsule Geology

The Jo Jo occurrence is located on the eastern side of the Kennedy River, between Golden Gate and Canyon creeks.

Upper Triassic andesites and andesitic breccia and tuffs of the Karmutsen Formation, Vancouver Group are intruded by quartz diorite to granodiorite of the Early to Middle Jurassic Island Plutonic Suite and Tertiary dacitic dikes. The rocks are cut by northwest trending faults which typically show intense shearing and local sericitization, silicification and pyritization over widths of 0.5 to 2 metres.

A quartz vein, about 60 centimetres wide, strikes 040 degrees through volcanics, sediments and granodiorite; one report gives a 065 degree strike. The quartz is mineralized with pyrrhotite, pyrite, and lesser amounts of chalcopyrite, sphalerite, and traces of galena. The vein has been traced on surface for "several hundred feet". A sample across some of the best looking ore contained only small per centages of zinc and copper; gold and silver were absent (Minister of Mines Annual Report 1927). The vein shares some characteristics with the VRL-10 vein (092F 480).

In 1983 and 1984, Rich Lode Gold Corp. completed programs of geochemical sampling, prospecting and geological mapping on the area. In 1984 and 1985, Int. Phoenix Energy completed programs of geochemical sampling, geological mapping, trenching and ground magnetic and electromagnetic surveys. In 2009 and 2010, G4G Resources Limited completed a program of prospecting and remote sensing, consisting of spectral analysis and synthetic aperture radar analyses, on the area as the G4G property.

EMPR AR *1927-343
EMPR ASS RPT 11940, 12047, 12767, 14279, 31904, 32332
EMPR BULL *1, p. 133; 55
GSC MAP 17-1968; 1386A
GSC MEM *204, p. 28
GSC OF 463
GSC P 68-50, p. 38
EMPR PFD 6696, 884541, 826369