The Valleau or Valley Girl occurrence is located near the headwaters of Valleau Creek about 38 kilometres south of the community of Germansen Landing. The Valleau property (ca. 2012) also covers the Val 5 showing (093N 240) located about 7 kilometres northwest.
The region is underlain by variably foliated and hornfelsed volcanic sediments (siltstone) and tuffs of the Upper Triassic Inzana Lake Formation of the Takla Group. These are intruded by minor plugs of coarse-grained, equigranular monzonite and gabbro that are probably associated with the Late Triassic to Early Cretaceous Hogem Intrusive Complex, which in this area is Early Jurassic.
Underlying rocks are foliated volcanic sediments and tuffs of the Inzana Lake Formation. Minor mineralization and multiple gold and copper soil anomalies have been documented in the claim area. Historically, the showing was described as numerous quartz-carbonate veins up to 15 centimetres wide, with minor free gold in one vein (Geological Survey of Canada Paper 45-9, page 15). An 8-centimetre-wide fractured quartz-carbonate vein was observed in 1992 but occurs approximately 2 kilometres northwest of the Valley Girl location. Pyritic shears trending 340 and 360 degrees are associated with veining. Minor disseminated pyrite, chalcopyrite and magnetite have been noted in basalt, and placer gold has been documented in several creeks in the area (see Valleau Creek, 093N 053).
Work History
In 1985, Imperial Metals Corp. conducted a reconnaissance stream sediment and soil sampling program which led to the staking of the VG 1-5 claims. Imperial followed up this early work with silt, rock and soil sampling and geological mapping programs in 1986 and 1989. Westmin has done airborne geophysical surveying, stream sediment and soil sampling, and geological mapping and trenching on the adjoining Kwanika Nalleau and Wudleau properties.
In 1990, Westmin Mines Ltd. completed a program of geochemical (soil and stream sediment) sampling and airborne geophysical (electromagnetic and magnetic) surveys on the area immediately east as apart of the Valley Girl, Wudleau North and Lys properties. This work identified very fine-grained placer gold along Chickadee Creek, located approximately 5 kilometres to the northwest. Most of the gold grains were reported to be angular in shape, suggesting a short transport distance.
Westmin's exploration of the Valley Girl property in 1991 included stream sediment sampling at a detailed scale in conjunction with reconnaissance geological mapping and rock geochemical sampling. In addition, several excavator pits were dug in the southwest corner of the property to sample different levels in the glacial overburden and to test the depth to bedrock. In 1992, the work done on the Kwanika Extension Grid by Westmin included 6.65 kilometres of linecutting, 16.6 kilometres of induced polarization surveying, 127 soil samples taken at 100-metre spacing along the cut and flagged lines and geological mapping of areas of bedrock, as identified in the course of the soil sampling. The portion of this work done on the Valley Girl property includes 3.25 kilometres of linecutting, 55 soil samples and 7.825 kilometres of induced polarization. A minor geochemical anomaly and a very strong chargeability response occurs near the centre of the Kwanika Extension Grid, on the boundary between the Valley Girl and Kwanika properties. The grid covers the plotted location of the Valley Girl occurrence. This work also identified a number of anomalous gold-in-soil and gold-in-stream sediment anomalies extending from approximately 5 kilometres to the west-northwest on Chickadee Creek to 4.5 kilometres to the south-southeast on Snipe Creek (Lys claim).
In 2005, Serengeti Resources Inc. carried out a 530-kilometre airborne magnetic-radiometric survey and collected 12 rock samples on their Valleau and Germansen properties, which cover the Valley Girl, Valleau Creek (093N 053), Val 5 (093N 240) and KC (093N 006) occurrences. The airborne survey identified eight magnetic anomalies. Two grab samples (MR-22A and -22B) of altered monzonite and silicified rock hosting trace pyrite and chalcopyrite from an area of past trenching on the Valley Girl occurrence yielded values of up to 0.037 per cent copper and 0.182 gram per tonne gold, whereas two other grab samples (MR-9 and MR-20) of chlorite-epidote–altered diorite and monzonite hosting specularite, magnetite and malachite along fractures from another zone of past trenching, located approximately 3.5 kilometres to the west-northwest, yielded 0.037 per cent copper and 0.118 gram per tonne gold (Assessment Report 28184).
In 2007, Serengeti Resources undertook magnetic (20.6 kilometres) and induced polarization (26.9 kilometres) surveying on the Valleau property. This work occurred on grids west of the Valley Girl area (Assessment Report 29766).
In 2010, Serengeti Resources Inc. completed a soil sampling program on the area.
In 2011, Serengeti Resources conducted geochemical soil and rock sampling and identified a coincident copper-gold anomaly immediately east of historical trenching. The 2007 geophysical anomaly is open eastward toward the soil anomaly (Assessment Report 33159). Rocks observed from the trenches are predominantly very fine-grained andesite and diorite. The country rocks have been locally intruded by a strongly iron carbonate altered felsic intrusion (monzonite?). This unit is uncovered in the easternmost trenches and is believed to be the host of the reported gold values. A composite grab sample (540958) from a 2 by 2 metre outcrop of syenite dike with specularite and weak limonite–iron-carbonate staining from the western zone of historic trenching assayed 0.130 gram per tonne gold (Assessment Report 33159). Also at this time, previous sampling of the historic trenches exposing an altered felsic (monzonite?) intrusion on the Valley Girl occurrence are reported to have yielded values of up to 1.070 grams per tonne gold over 10 metres from the second most southeastern trench and 0.300 gram per tonne gold over 20 metres in the next trench to the northwest (Assessment Report 33159).
In 2012, Serengeti Resources conducted geochemical soil sampling, resulting in an eastward extension and stronger definition of known copper-gold anomalies (Assessment Report 33800).
During 2005 through 2014, Redton Resources Inc. (later Kiska Metals Corp.) completed programs of prospecting, geochemical (rock, silt, and soil) sampling, geological mapping and ground and airborne geophysical surveys on the regionally extensive Redton property, located immediately to the east. Refer to the North Kwanika (MINFILE 093N 077) occurrence for a complete summary of this work.
