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: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  14-Jan-2004 by Robert H. Pinsent (RHP)

Summary Help Help

NMI
Name J.C. (L.7263), JC Mining Division Slocan
BCGS Map 082K065
Status Prospect NTS Map 082K11E
Latitude 050º 36' 05'' UTM 11 (NAD 83)
Longitude 117º 08' 33'' Northing 5605509
Easting 489915
Commodities Lead Deposit Types
Tectonic Belt Omineca Terrane Kootenay
Capsule Geology

The J.C. prospect is at 1850 metres elevation near the head of Lake Creek, 2.0 kilometers east of Mount Aldridge. The J.C. (L.7263) is the southern-most of four crown-granted mineral claims (L.7263,4,5 & 7) that follow the northwest trend of the creek on its southwest side. The prospect is 3.5 kilometres south of the Abbott [082KNW056] property.

The Trout Lake area is underlain by a thick succession of sedimentary and volcanic rocks of the Badshot Formation and Lardeau Group near the northern end of the Kootenay arc, an arcuate, north to northwest trending belt of Paleozoic and Mesozoic strata that is now classified as a distinct, pericratonic, terrane. The arc rocks are bordered by Precambrian quartzite in the east and they young to the west, where they are bounded by Jurassic-age intrusive complexes. They were deformed during the Antler orogeny in Devonian-Mississippian time and were refolded and faulted during the Columbian orogeny, in the Middle Jurassic. A large panel, the "Selkirk allochtho", was later offset to the northeast by dip-slip motion along the Columbia River Fault.

The Badshot Formation is composed of a thick Cambrian limestone that is a distinctive marker horizon in the Trout Lake area. It is underlain by Hamill Group quartzite and it is overlain by a younger assemblage of limestone, calcareous, graphitic and siliceous argillite and siltstone, sandstone, quartzite and conglomerate, and also mafic volcanic flows, tuffs and breccias, all of which belong to the Lardeau Group. The rocks are isoclinally folded and intensely deformed, but only weakly metamorphosed. They occur as intercalated beds of marble, quartzite and grey, green and black phyllite and schist. Fyles and Eastwood (EMPR BULL 45) subdivided the group into six formations (Index, Triune, Ajax, Sharon Creek, Jowett and Broadview) of which the lowermost (Index) and uppermost (Broadview) are the most widespread. The Triune (siliceous argillite), Ajax (quartzite) and Sharon Creek (siliceous argillite) are restricted to the Trout Lake area. The Jowett is a mafic volcanic unit.

The J.C. property is underlain by deformed, isoclinally folded, northwest striking, southwest dipping carbonaceous phyllite and phyllitic schists of the basal part of the Index Formation and limestone of the upper part of the Badshot Formation.

There is little known about the property, other than that a 1.52 to 2.44 metres wide vein of galena "concentrating ore" was located at surface in the late 1890s, and was accessed at a depth of 16.7 metres by means of a crosscut.

Bibliography
EMPR AR *1898-1067; 1899-686; 1900-825; 1907-218
EMPR BULL 45
EMPR OF 1990-24
GSC MEM 161

COPYRIGHT | DISCLAIMER | PRIVACY | ACCESSIBILITY