British Columbia Ministry of Energy, Mines and Natural Gas and Responsible for Housing
News | The Premier Online | Ministries & Organizations | Job Opportunities | Main Index

MINFILE Home page  ARIS Home page  MINFILE Search page  Property File Search
Help Help
File Created: 20-Jul-1992 by Peter S. Fischl (PSF)
Last Edit:  09-Jun-2020 by Karl A. Flower (KAF)

Summary Help Help

NMI
Name WESTERN TRENCHES, SIWASH SILVER Mining Division Similkameen
BCGS Map 092H079
Status Showing NTS Map 092H16W
Latitude 049º 46' 10'' UTM 10 (NAD 83)
Longitude 120º 20' 34'' Northing 5516385
Easting 691333
Commodities Zinc, Lead, Silver, Copper, Gold Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

The Western Trenches showing is about 500 metres southwest of Saskat Creek and 1.9 kilometres northwest of the confluence of Siwash and Tepee creeks.

Lead-zinc-silver mineralization occurs in siliceous zones and in quartz veinlets in the vicinity of the contact between quartz-feldspar-biotite porphyry and strongly kaolinized and silicified granite, both of the early Tertiary Otter intrusions. Fracture fillings and veinlets of hematite accompany this mineralization. In addition, magnetite and lesser pyrite and minor chalcopyrite are localized along a network of northeast and northwest striking basaltic dikes. A sample from a quartz vein, 5 to 15 centimetres wide, assayed 0.41 to 0.80 per cent zinc, greater than 34 grams per tonne silver and greater than 0.8 per cent lead (Assessment Report 7992, part 3, page 11, rock geochemistry maps).

In 1980, drill hole SS-80-14, located approximately 500 metres to the east of the trenches, yielded intercepts of up to 0.13 gram per tonne gold, greater than 50 grams per tonne silver and 1.13 per cent copper over 1.5 metres (Besserer, D.J. (2007-05-27): Technical report on the precious and base metal potential of the Siwash Creek Property).

In 2006, two samples (06KRP414 and 06KRP 415) yielded values of up to 0.42 gram per tonne gold, 32.5 grams per tonne silver, 0.47 per cent zinc and 0.15 per cent lead (Besserer, D.J. (2007-05-27): Technical report on the precious and base metal potential of the Siwash Creek Property).

The area has been explored in conjunction with the nearby Snowstorm (MINFILE 092HNE032) occurrence and completed exploration history can be found there.

Bibliography
EMPR ASS RPT 7547, *7992, 8696, 8926, 15863, *19472, 20329
EMPR EXPL 1979-159,160; 1980-210
EMPR PF (International Tower Hill Mines Ltd. (1991): Prospectus,
Vancouver Stock Exchange (see 092HNE032); Livgard, E. (1986):
Summary of Report of Siwash Silver Property, Similkameen Mining
Division for Westron Venture Ltd., in Westron Venture Ltd.
(1987): Prospectus, Vancouver Stock Exchange (see 092HNE028))
GSC MAP 888A; 1386A; 41-1989
GSC MEM 243
GSC P 85-1A, pp. 349-358
*Besserer, D.J. (2007-05-27): Technical report on the precious and base metal potential of the Siwash Creek Property
Besserer, D.J. (2008-06-12): Technical report on the precious and base metal potential of the Siwash Creek Property
Besserer, D.J. (2010-08-30): Technical report on the precious and base metal potential of the Siwash Creek Property
Moroney, D.M. (2012-06-04): Technical Report on the Siwash Creek and River Wild Properties

COPYRIGHT | DISCLAIMER | PRIVACY | ACCESSIBILITY