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File Created: 30-Jul-1997 by Keith J. Mountjoy (KJM)
Last Edit:  24-Aug-2017 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name SILVERTIP, ALLISON PASS Mining Division New Westminster
BCGS Map 092H014
Status Showing NTS Map 092H03E
Latitude 049º 10' 26'' UTM 10 (NAD 83)
Longitude 121º 14' 23'' Northing 5448278
Easting 628299
Commodities Zinc, Lead, Copper, Silver Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
G06 : Noranda/Kuroko massive sulphide Cu-Pb-Zn
Tectonic Belt Coast Crystalline Terrane Bridge River
Capsule Geology

The Silvertip showing is located in the southern headwaters of the Sumallo River, 1.5 kilometres northeast of Mount Rideout and 2 kilometres northwest of Silvertip Mountain (Assessment Report 23026).

Mineralization was apparently discovered in the Silvertip showing area in the early 1960s. A diamond drilling program was carried out between 1965 and 1966 by Allison Pass Mining Ltd. Two hole were drilled for a total length of 405 metres. Suecon Development Corp. evaluated the property in 1983 and 1984. In 1993, A.E. Angus staked the Silvertip claim and requested the services of W.C. Day to conduct geochemical sampling and prospecting on the property.

The Silvertip showing is underlain by the Hozameen Group, composed predominantly of ribbon chert, greenstone, tuff, limestone and argillite.

Mineralization at the Silvertip showing consists of sphalerite and lesser chalcopyrite and galena occurring in three distinct modes. Layered cherty argillite carries pyrrhotite, sphalerite, chalcopyrite and minor magnetite along bedding? planes. Tuffs host up to 2 per cent disseminated magnetite with fracture fillings and blebs of chalcopryite and pyrite. The last mode of mineralization consists of brecciated tuff healed with pyrrhotite, magnetite and minor chalcopyrite.

Several samples (samples 48654, 48657, 48658, 48661 and 48663) yielded greater than 2 per cent zinc (Assessment Report 23026). Sample 48660 yielded greater than 2 per cent lead, 1.88 per cent zinc and greater than 50 grams per tonne silver (Assessment Report 23026). Sample 48655 yielded the highest copper value of 0.09 per cent copper (Assessment Report 23026).

Surface showings were reported traced for 183 metres. A surface sample (sample 17) across 4.88 metres was reported to have yielded 3.42 per cent zinc, 0.1 per cent lead and 0.08 per cent copper

The results of samples from two drillholes indicated significant mineralization intersected at depth. Drillhole 1A yielded 1.18 per cent lead, 0.93 per cent zinc, 20.58 grams per tonne silver and 0.05 per cent copper over 2.44 metres (Assessment Report 23026). Drillhole 2A yielded 0.28 per cent lead, 0.07 per cent zinc and 0.7 per cent copper over 30.48 metres (Assessment Report 23026).

Bibliography
EMPR ASS RPT *23026
EMPR OF 1999-2; 1999-14
GSC BULL 238
GSC MAP 56A; 737A; 1069A; 12-1969; 41-1989
GSC P 69-47

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