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: 11-Mar-2012 by Karl A. Flower (KAF)
Last Edit:  10-Jun-2020 by Nicole Barlow (NB)

Summary Help Help

Name CRETIN, HALL LAKE Mining Division Fort Steele, Nelson, Slocan
BCGS Map 082F068
Status Showing NTS Map 082F09W
Latitude 049º 37' 08'' UTM 11 (NAD 83)
Longitude 116º 26' 31'' Northing 5496408
Easting 540309
Commodities Gold, Lead, Zinc, Silver, Arsenic Deposit Types
Tectonic Belt Omineca Terrane Ancestral North America
Capsule Geology

The Hall Lake (Cretin) property is located immediately north east of Hall Lake, approximately 34 kilometres south west of Kimberley.

The property is dominated by a 2.5 kilometre by 3.5 kilometre upper Cretaceous porphyritic granitoid pluton that intrudes the conformable contact between moderately- dipping Middle and Upper Aldridge rocks to the east and overlying Creston Formation rocks to the west. The pluton also appears to cross-cut north- south- trending, sub-vertical, regional-scale thrust faults.

Locally, a roughly 7 metre wide north west- striking, sub-vertical felsic dike that cross-cuts the main intrusive body and can be traced for more than 1.5 kilometres. The light -grey to rusty -orange weathering dike is very -fine -grained to aphanitic with rare 0.5 millimetre quartz eyes. The texture of the dike is massive.

Sulphide mineralization, in and around the dike, consists of rare millimetre-scale euhedral pyrite cubes; minor disseminated, medium-grained arsenopyrite prisms and needles; and medium-grained euhedral arsenopyrite needles to fine-grained, massive, arsenopyrite is common along fracture surfaces. Arsenopyrite bearing, light- to dark- grey, sugary quartz veins that average 0.5 centimetres in width, cross-cut the dike. Larger 3 to 10 centimetre medium- to coarse-grained, rusty, quartz veins intrude the host metasedimentary rocks; veins can contain muscovite and form minor stockworks. Sulphide mineralization includes coarse-grained euhedral galena, coarse-grained euhedral pyrite cubes and limonite, as well as fine-grained disseminated arsenopyrite.

In 2003 and 2004, Eagle Plains claimed the area surrounding the occurrence to conduct a rock geochemical survey on the region. Anomalous gold values were found in samples from a large dike in the sediments of the Creston Formation. Highlighted samples include sample H-16 graded at 2.39 grams per tonne gold, and greater than 1 percent arsenic, sample H-02 grading 42 grams per tonne silver, and 1.64 percent lead, and sample H-18 grading 1.77 grams per tonne gold, and greater than 1 percent arsenic (Kenwood, S. (2011-11-30): 2011 Technical Report for the Hall Lake Property). Sampling was mostly undertaken around the Cretin occurrence.

Rock sampling, in 2004, returned more than 1000 parts per billion gold, 1874 parts per million lead and 3100 parts per million zinc (Assessment Report 27694).

In 2005, Eagle Plains conducted a soil sampling and rock geochemical sampling program near Hall Lake, the region closest to the Cretin occurrence. Results showed insignificant values of gold, although multiple mineralized outcrops were not sampled due to hazardous conditions during the field program.

In 2011, Bethpage Capital Corp. conducted an airborne geophysical survey of the Hall Lake area including the occurrence. The survey identified five anomalous features. It was hypothesized that the first two zones could be the extension of the felsic dike that hosts the mineralization found at the Cretin occurrence (Kenwood, S. (2011-11-30): 2011 Technical Report for the Hall Lake Property).

EMPR ASS RPT 27694, 28448, 32614
EMPR PFD 841780
*Kenwood, S. (2012-10-31): Technical Report for the Hall Lake Property.