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File Created: 24-Jul-1985 by BC Geological Survey (BCGS)
Last Edit:  04-Apr-2022 by Karl A. Flower (KAF)

Summary Help Help

BCGS Map 092P094
Status Prospect NTS Map 092P14W
Latitude 051º 58' 51'' UTM 10 (NAD 83)
Longitude 121º 20' 14'' Northing 5760212
Easting 614195
Commodities Copper, Gold, Silver, Iron Deposit Types L03 : Alkalic porphyry Cu-Au
K01 : Cu skarn
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

The Peach-Melba showing is located on the west side of Peach Lake, approximately 21 kilometres northeast of Lac La Hache and is readily accessible from Highway 97 via a network of logging roads. The Peach-Melba showing is one of several copper showings on the current (February 2003) Ann and Dora claims (see also 092P 001, 002, 035, 115 and 153). All of these occurrences are part of the Spout Lake copper-gold district, a group of porphyry and skarn deposits associated with Upper Triassic to Lower Jurassic alkaline intrusive rocks of the Spout Lake intrusive suite.

The Peach-Melba showing is underlain by andesites, basalts, calcareous tuffs and argillites of the Upper Triassic Nicola Group (Assessment Report 25368). Nicola Group rocks are intruded by the Upper Triassic to Lower Jurassic Spout Lake Intrusive complex, an alkalic intrusive suite ranging in composition from pyroxenite through monzonite to syenite, and from batholithic size to small intrusive plugs, dykes and breccia bodies. Granodioritic rocks of the Triassic to Jurassic Takomkane Batholith intrude Nicola rocks east of the property. Outliers of alkaline plateau basalts of the Miocene to Pleistocene Chilcotin Group are present in the general area.

No good description of the Peach-Melba showing is available, however Assessment Report 25368, states that "East Zone" (Peach-Melba showing) is an alkalic porphyry copper-gold system with fracture-controlled and disseminated pyrite-chalcopyrite mineralization in potassic/propylitic altered andesitic flows and tuffs and monzonitic intrusive rocks. Diamond drill hole PL95-02 intersected porphyry-style disseminated mineralization over 77.4 metres grading 0.23 per cent copper and 0.23 grams per tonne gold. The intersection is part of a strong chargeability (induced polarization) anomaly which extends for 800 metres to the south to what has been called the "Northwest Zone" on the adjacent Ann #2 claim. The Peach-Melba showing also contains a moderately east-dipping 10 to 20 metre thick diopside-garnet skarn with minor magnetite and chalcopyrite.

In 1991, a percussion drill hole (P91-4) yielded 0.21 per cent copper and 0.34 gram per tonne gold over 18.3 metres (SRK Consulting (Canada) Inc. (2012-06-04): Independent Technical Report for the Lac La Hache Project).

In 1998, a drilling yielded intercepts of up to 0.23 and 0.15 per cent copper with 0.18 and 0.11 gram per tonne gold over 10 and 42 metres, respectively, in hole PM98-1 (SRK Consulting (Canada) Inc. (2012-06-04): Independent Technical Report for the Lac La Hache Project).

In 2005, drilling highlights include hole PM 05-01, which returned 5.5 metres grading 0.49 per cent copper and 0.59 grams per tonne gold (Assessment Report 28332).

In 2020, two drillholes (GP18-44 and -45), located approximately 400 to 800 metres south of the main Peach-Melba zone yielded intercepts of 0.62 and 0.12 gram per tonne gold, 0.34 and 0.39 per cent copper, 1.43 and 1.06 grams per tonne silver and 11.50 with 5.68 per cent iron over 5.20 and 22.00 metres, respectively (SRK Consulting (Canada), Inc. [2021-05-11]: Independent Technical Report for the Lac La Hache Project, Canada).

Work History

Interest in the Spout Lake area was triggered in 1966 when the Geological Survey of Canada released the results of a regional airborne magnetic survey which outlined an annular magnetic anomaly 10 kilometres in diameter in the Spout Lake area and which included the area underlying the Peach #1 prospect. Subsequently in 1966 and 1967, Coranex Limited attained anomalous results in follow-up stream sediment geochemical surveys and soil geochemical surveys in the area south of Peach Lake. Programs of geological, soil geochemical, magnetometer, induced polarization and prospecting surveys were undertaken in 1967 in the area south of Peach Lake, leading to the discovery of the Peach 1 and several other occurrences. Asarco Exploration Company of Canada Limited optioned the property in 1969. Amax Potash Limited optioned the property between 1971 and 1973 and completed programs of geological mapping, geophysics and percussion drilling.

G.W.R. Resources Incorporated acquired the property and optioned the property to Asarco Exploration Company of Canada Limited in 1991. In 1993, G.W.R. Resources formed a joint venture with Regional Resources. Percussion and diamond drilling has been undertaken by Amax (1972), Asarco (1991) and the G.W.R./Regional Resources joint venture in 1994 and 1995. Induced polarization surveys by Amax (1972), Asarco (1991), and the G.W.R./Regional joint venture outlined a 1.5 kilometres long and 800 metres wide chargeability anomaly that has been drilled by Amax (2 holes in 1972) and Asarco (6 holes in 1991). The G.W.R/Regional joint venture drilled seven holes in 1994 and 1995 in three separate campaigns. Additional drilling was completed by G.W.R. Resources in the winter season of 2002/3 (Stockwatch 2003-03-19). In 2005, G.W.R. Resources Inc. completed two diamond drillholes at the Peach-Melba showing. GWR Resources completed programs of prospecting, geochemical sampling, geological mapping and geophysical surveys on the area through 2013. In 2015, a gravity survey was completed on the area which identifying two new and previously unexplored target areas.

In 2017, a 641 line-kilometre airborne high-resolution gravimetric and magnetic gradient survey was completed on the area. During 2018 through 2021, EnGold Mines Ltd. completed programs of prospecting, soil sampling, diamond drilling and a geophysical survey on the area as part of the Lac La Hache property.

EMPR AR 1966-126, 1967-126, *1968-155
EMPR GEM 1969-183, 1972-324, 1973-278
GSC MAP 1966-3, 1278A
PR REL GWR Resources Inc., Mar.18, 2003
STOCKWATCH 2003-03-19
Whiteaker Robin (1966), The Geology, Geochronology and Mineralization of the Ann Property: and Early Jurassic Alkalic Porphyry System near Lac La Hache, B.C., Honours B.Sc. Thesis, U.B.C.
*SRK Consulting (Canada) Inc. (2012-06-04): Independent Technical Report for the Lac La Hache Project
Kirkham, G. (2018-03-05): NI 43-101 Technical Report Mineral Resource Estimate for the Aurizon South Deposit, Lac La Hache Project
*SRK Consulting (Canada), Inc. (2021-05-11): Independent Technical Report for the Lac La Hache Project, Canada