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File Created: 24-Jul-85 by BC Geological Survey (BCGS)
Last Edit:  19-Jul-13 by Nicole Barlow(NB)

Summary Help Help

NMI
Name AURIZON GOLD ZONE, LAC LA HACHE, OPHIR, ANN, ZONE 3 ANOMALY Mining Division Clinton
BCGS Map 092P094
Status Prospect NTS Map 092P14W
Latitude 51º 57' 28" N UTM 10 (NAD 83)
Longitude 121º 17' 08" W Northing 5757730
Easting 617804
Commodities Copper, Gold, Silver Deposit Types L03 : Alkalic porphyry Cu-Au
Tectonic Belt Intermontane Terrane Quesnel
Capsule Geology

The "Aurizon Gold Zone (or Zone 3 Anomaly)" on the Ann 1 Claim is located 4 kilometres southeast of Peach Lake, approximately 21 kilometres northeast of Lac La Hache and is readily accessible from Highway 97 via a network of logging roads. Other names for the Ann claims and showings have been the Peach and the Ophir. The Aurizon showing is one of several copper showings on the current Ann 1 and 2 claims (see also 092P 002, 035, 109, 153 and 174). All of these occurences are part of the Spout Lake copper-gold district, a group of porphyry and skarn deposits associated with Later Triassic to Early Jurassic alkaline intrusive rocks of the Spout Lake intrusive suite.

The Ann (Peach) property 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 Late Triassic to Early 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 Aurizon Gold Zone is available, however Assessment Report 23975, states that the area contains pyrite, chalcopyrite, magnetite and traces of bornite,native copper and tetrahedrite as dissemingations and in veinlets and stockworks. K-feldspar, silica, epidote (propylitic) and clay alteration are associated with the minralisation which occurs along fracture zones and is hosted in hydrothermal breccias cutting monzodiorite. Drill hole A94-01 intersected a high grade intersection adjacent to a porphyry dike. A 3.8 metre section grading 0.22 per cent copper and 11.4 grams per tonne gold (Assessment Report 23975).

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 that outlined an annular magnetic anomaly, 10 kilometres in diameter, in the Spout Lake area and included the area underlying the Peach 1 (MINFILE 092P 001) prospect.

Subsequently, in 1966 and 1967, Coranex Limited obtained 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.

In 1983 and 1984, the Selco Division of BP Resources Canada Limited completed soil geochemical surveys on the Core group of claims which covered the property.

G.W.R. Resources Inc. acquired the property in 1988 and Asarco re-optioned the property and completed induced polarization surveys and percussion drilling in 1991.

In 1993, G.W.R. Resources Inc. formed a joint venture with Regional Resources and have since completed programs of induced polarization and diamond drilling.

Two diamond drillholes totaling 406.3 metres were completed in 1994 by G.W.R. Resources Inc. Drilling was done to determine structure, geology, alteration and copper-gold content of a combined IP, soil geochemistry and airborne magnetic anomaly. Highlights of the drilling include a 3.8 metre section from drillhole A94-1 that assayed 0.22 per cent copper and 11.41 grams per tonne gold (Assessment Report 23975).

In 1995, G.W.R. Resources Inc. completed three diamond drillholes at the Aurizon Gold zone to follow up the findings in 1994. Highlights include drillhole A95-02, which returned a 6 metre core length that assayed 1.13 grams per tonne gold and 0.18 per cent copper (Assessment Report 25368).

In 2006, G.W.R. Resources Inc. conducted an exploration program of 3178 metres of trenching and 5638.7 metres of diamond drilling. The drilling program was carried out to test the depth of extensions of copper mineralization in exposed bedrock in the southeastern area of the Aurizon Gold zone. Highlights include drillhole AZ-06-01, which returned 44 metres grading 0.42 per cent copper and 0.63 grams per tonne gold (Assessment Report 29746).

In 2010, G.W.R. Resources Inc. completed a single diamond drillhole (AZS10-26) at the Aurizon Gold zone, which returned 4 metres grading 0.73 per cent copper, 3.45 grams per tonne gold and 1.9 grams per tonne silver (Assessment Report 33106).

In 2011, G.W.R. Resources Inc. completed a four-hole drill program. Highlights include drillhole AZS11-29, which returned 8 metres grading 3.6 per cent copper, 3.4 grams per tonne gold and 19 grams per tonne silver (Press Release, G.W.R. Resources Inc., February 2, 2012).

Bibliography
EMPR AR 1966-126, 1967-126, *1968-155
EMPR GEM 1969-183, 1972-324, 1973-278
GSC MAP 1966-3, 1278A
GSC MEM 363
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.
PR REL G.W.R. Resources Inc., *Feb. 2, 2012

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