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File Created: 24-Jul-85 by BC Geological Survey (BCGS)
Last Edit:  12-Aug-13 by Nicole Barlow(NB)

Summary Help Help

NMI
Name STAR, SKY-STAR, KYDD, KID, BOO, GOBI Mining Division Nelson
BCGS Map 082F029
Status Prospect NTS Map 082F01E
Latitude 49º 12' 16" N UTM 11 (NAD 83)
Longitude 116º 14' 56" W Northing 5450455
Easting 554713
Commodities Lead, Zinc, Copper, Silver Deposit Types I05 : Polymetallic veins Ag-Pb-Zn+/-Au
J01 : Polymetallic manto Ag-Pb-Zn
Tectonic Belt Omineca Terrane Ancestral North America
Capsule Geology

The location of the Star prospect is centred on diamond- drill hole S90-1 (Assessment Report 20571). This prospect lies approximately 7 kilometres northeast of Kitchener, on the west side of Kid Creek.

This occurrence extends from diamond-drill hole S90-5 in the north to just south of drillhole S90-1 and includes strata contained within a structural panel bounded by the Spider and Carroll Creek faults (to the east and west).

Regionally, the area is underlain by the peri-cratonic Middle Proterozoic Purcell Supergroup, a thick succession of siliciclastic and lesser carbonate rocks. The Purcell Supergroup is well known for hosting a number of significant deposits that include the Sullivan (082FNE052) sedimentary exhalative lead-zinc deposit and the Troy copper-silver deposit in Montana.

The area of interest is underlain by the Aldridge Formation. The Aldridge Formation is the lowermost division of the Purcell Supergroup and is composed of turbiditic siliciclastic rocks and numerous gabbro sills. The focus of exploration in the Aldridge Formation is the contact between the Lower Aldridge and the Middle Aldridge which corresponds to the time of deposition of the Sullivan deposit. In this particular area of the Purcell basin, the contact between the Lower and Middle Aldridge is somewhat enigmatic in that there is no recognizable facies change.

The Star prospect occurs within Middle Aldridge sedimentary rocks. Mineralization occurs below the lowermost of a group of sills (Middle Proterozoic Moyie intrusions) which are repeated by reverse faulting south of Kid Creek. Only the two lower sills are exposed in the fault block containing the mineralized zone. Dips are steep (averaging 65-70 degrees) and bedding trends north subparallel to the strike of the faults bounding this structural block.

Mineralization at surface consists of steeply dipping, east to northeast striking quartz veins in fine grained quartz wacke. Mineralization intersected in drill core includes 4.08 per cent zinc over 1 metre; and 8.52 per cent lead, 30.0 grams per tonne silver and 2.38 per cent zinc over 2 metres (Assessment Report 20571). Veins consist of quartz, galena, sphalerite and pyrrhotite with minor pyrite, chalcopyrite and arsenopyrite. Strongly altered sedimentary rocks occur within the mineralized zone. Patchy to pervasive chlorite and muscovite, locally associated with quartz-carbonate veining, overprints very fine grained biotite. Numerous lamprophyre sills, believed to be Cretaceous or Tertiary, occur in the mineralized zone. Widespread tourmalinization of argillaceous intervals were intersected in diamond drilling downdip from surface exposures.

In 1990, Kokanee Explorations Ltd. explored and drilled the property.

In 1992, Kokanee Exploration Ltd. drilled one hole on the property. Diamond drill hole S92-14 was drilled to test soil and rock geochem anomalies as outlined by work conducted in 1990 and 1991. Results showed that the gold appeared to be associated with the quartz veins as opposed to being remobilized from a local larger underlying source (Assessment Report 22667).

In 1996, Pacific Mariner Exploration Ltd. drilled one hole (152.4 metres).

Bibliography
EM GEOS MAP 1998-2
EMPR AR 1900-985; 1967-248,276; 1968-272
EMPR ASS RPT 1069, 1625, 1642, 7469, 7481, 12856, 15021, 16635,
22770, 24259
EMPR EXPL 1978-E47; 1979-54
EMPR FIELDWORK 1993, pp. 129-151; 1994, pp. 111-125; 1997, pp.
9-1-9-22
EMPR PF (Hagen, A.S. (1990): Star Property
GSC MEM 228
GSC OF 2721
GCNL #203, 1995

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