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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  21-Jan-2014 by Nicole Barlow (NB)

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Name AILSA Mining Division Fort Steele
BCGS Map 082F058
Status Showing NTS Map 082F09W
Latitude 049º 31' 48'' UTM 11 (NAD 83)
Longitude 116º 23' 58'' Northing 5486549
Easting 543458
Commodities Molybdenum, Lead, Tungsten, Tin Deposit Types K07 : Mo skarn
L05 : Porphyry Mo (Low F- type)
L07 : Porphyry W
I05 : Polymetallic veins Ag-Pb-Zn+/-Au
Tectonic Belt Omineca Terrane Ancestral North America
Capsule Geology

The Ailsa showing is situated on the north side of Ailsa Lake, approximately 17 kilometres southwest of Kimberley.

The property is underlain by siltstones, quartzites and phyllites of the Proterozoic Upper Aldridge and Lower Creston formations (Purcell Supergroup), intruded by a small quartz monzonite stock of possible Cretaceous age. The Lower Creston Formation consists mainly of laminated to thickly bedded argillites and siltites with minor fine-grained quartz wackes. The rocks are waxy green to olive in colour with tan weathering surfaces, wavy bedding and abundant mudcracks. Rocks of the Upper Aldridge, underlying an area to the east of the Ailsa showing, consist of a relatively homogeneous unit with occasional thin interbeds of light grey quartzite and laminated light and dark grey argillaceous quartzite. The intrusive stock consists of medium to fine-grained massive biotite monzogranite. The sediments adjacent to the intrusion have been altered to produce concentric zones of biotite hornfels and siliceous siltstone. Mineralization in the form of molybdenite, scheelite, stibnite and galena occurs in a narrow zone near the contact of the intrusion.

Quartz veining is common in the Ailsa Lake stock, with some veins greater than 30 centimetres in width. The quartz veins are often mineralized with galena, sphalerite, bismuth, arsenopyrite and molybdenite. Vein sets crosscut each other at perpendicular angles and trend 330 and 240 degrees, respectively, with vertical dips. Shears are weakly anomalous in gold.

During exploration in the 1980s, Cominco Limited found several molybdenite and scheelite occurrences in the area.

In July 1976, Chevron Canada conducted an airborne scintillometer survey over the area around Ailsa and Mayo lakes as part of their Purcell regional uranium exploration project. A total of 11 fiducial points were measured but did not return any anomalous results.

Sometime prior to 1980, Cominco Limited staked the Ailsa claims immediately over and to the west of Ailsa Lake. In 1980, Cominco conducted an exploration program of detailed geological mapping and prospecting and soil sampling along contour lines. In total, 263 samples were collected and analyzed for molybdenum and tungsten. A broad anomalous zone (greater than 10 parts per million molybdenum and greater than 20 parts per million tungsten) was detected in soils overlying the quartz monzonite intrusion.

In 1992, Firesteel Resources Incorporated staked an area to the east and north of the Ailsa showing, extending from the north side of Meachen Creek to the northern tip of Whiteboar Lake and covering the Whopper showing (MINFILE 082FNE176). The area was initially identified during a Cominco mapping program in 1990. Exploration was focused on a Sullivan-type lead-zinc target. The following year, Firesteel Resources conducted a contour soil geochemical survey and identified three weak to moderate lead-zinc soil anomalies.

In 2005, Sean Kennedy staked the Whopper claims to the south of Meachen Creek to cover an area of promising soil geochemistry results over a Cretaceous granitic stock previously outlined by Cominco. Kootenay Gold Incorporated later optioned the property and had Kennedy complete various rock and soil geochemistry and geological mapping programs.

The following year, Sean and Mike Kennedy conducted a brief prospecting and rock geochemistry program on the property. In total, 16 rock samples were collected from three main features in an area around Ailsa and Mayo lakes. The features included shear zones, quartz veins and alteration within the Ailsa Lake stock and metamorphosed sediments adjacent to the intrusion. Results of the program identified a strong silver-bismuth-tungsten anomaly that appeared to be closely related to the intrusive event.

In 2007, Sean Kennedy conducted a rock and soil sampling program over the Whopper showing (MINFILE 082FNE176) to the northeast and discovered an approximately 1-kilometre-long north-south–trending zone of copper-bearing iron oxide breccia.

Fjordland Exploration Incorporated optioned the Slocanny Granny property in 2010. The property contained the Ailsa occurrence in the northeast corner and the Copper King occurrence (MINFILE 082FNE065) near the western boundary. In 2011, Fjordland Exploration completed a program of soil sampling over the Copper King occurrence (MINFILE 082FNE065) to the west. Results of the sampling program delineated a 600-metre-long northwesterly copper and molybdenum trend to the east and a more western lead-zinc zone with a northwest-southeast trend.

EMPR ASS RPT 8509, 23049, 25178, 28323, 29315, 30057, 32892
EMPR OF 1991-17
EMPR PF (Laforme, G.W., Chevron Standard Ltd. Minerals Staff (01/12/1976): Report on Explorations in Southeastern British Columbia – The Nelson and Fort Steele Mining Division – C445 – Geophysical – Geochemical; McCartney, I. D., (06/12/1993): Summary report on the Firesteel Resources Inc. Meachen Creek Property, East Kootenay; Unknown (17/07/1976): Map – St Mary’s Lake Sampling – Purcell project – C445)
EMPR PFD 810671, 841759, 841780