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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  11-Apr-2012 by George Owsiacki (GO)

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NMI 103P3 Mo3
Name KAY, LAVA Mining Division Skeena
BCGS Map 103P014
Status Showing NTS Map 103P03W
Latitude 055º 08' 17'' UTM 09 (NAD 83)
Longitude 129º 20' 06'' Northing 6110206
Easting 478644
Commodities Molybdenum Deposit Types L05 : Porphyry Mo (Low F- type)
Tectonic Belt Coast Crystalline Terrane Plutonic Rocks, Bowser Lake
Capsule Geology

The Kay showing is located on the south side of the Nass River between Kwinyarh and Ansedagan creeks. The area has been investigated for porphyry molybdenum deposits periodically from 1966 to 1978.

The area is underlain by Middle Jurassic to Upper Cretaceous Bowser Lake Group argillite and greywacke intruded by granitic rocks of the Tertiary Coast Plutonic Complex. Several molybdenum showings occur along the northern limit of the Ponder pluton and the Kay is one of these.

A quartz monzonite porphyry stock, trending northwest and plunging west, is cut by later aplite and alaskite dikes. Visible molybdenite has been observed in northeast trending fracture-filling quartz veins which also cut the stock. The stock is elliptical in shape and is 1200 by 600 metres in size. Two sets of conjugate joints are present and mineralization appears to be controlled by the northeast trending set. Propylitic alteration is evidenced by the presence of chlorite, muscovite and epidote in the hornfels and by albite and sericite in the stock.

Molybdenite occurs as rosettes in the stock, in quartz veins in the stock and rarely in hornfels. Fine grained disseminated molybdenite occurs in the dikes and rarely in the stock or on fractures. The quartz veins are generally irregular, short and widely spaced. Pyrite appears to be associated with the molybdenite mineralization and arsenopyrite occurs near the eastern extent of the stock. Powellite is frequently present on exposed surfaces of the stock.

In 1969, Phelps Dodge established 64 line kilometres of grid on the property and soil sampling conducted every 60 metres along lines spaced 60 metres apart over the most interesting portions of the claim group. Wider-spaced lines over a 122 metre grid and 60 metre sampling interval were used over the remaining area of the property. Three old trenches were surveyed, mapped and sampled. In 1978, R. Dunn conducted prospecting on the Lava claim.

Bibliography
EMPR AR 1966-51; 1967-50-52
EMPR ASS RPT 794, 1058, *1980, *6853, 8856
EMPR BULL 63; 64
EMPR EXPL 1976-E164; 1978-E237
EMPR FIELDWORK 1988, pp. 233-240; 1990, pp. 235-243
EMPR GEM 1969-69
EMPR MAP 8
EMPR OF 1986-2; 1994-14
EMR MP CORPFILE (Madsen Red Lake Gold Mines Ltd.; Nass River Mines)
GSC MAP 1385A
GSC OF 864
EMPR PFD 811912

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