- SMDI #
- 0307
- Current Showing Name
- Tyrrell Lake Cu-Zn Zone or TYR Cu-Zn Zone
- Historical Showing Names
- Tyrrell Lake Cu-Zn Zone or TYR Cu-Zn Zone
- Company Name
- Project Name
- UTM Easting (NAD83 Z13)
- 680582.5200
- UTM Northing (NAD83 Z13)
- 6087760.2900
- NTS Sheet
- 063L16
- TRM (Township-Range-Meridian)
- 68-02-2
- Primary Commodities
- Copper
- Associated Commodities
- Gold, Silver, Zinc
- Discovery Type
- Drillhole
- Status
- Deposit: Advanced Exploration
- Geological Details
- The drill holes that comprise the comprising the TYR Zone are located on a low drift covered ridge approximately 0.64 km (0.4 mile) north of the west tip of Little Otonadah Lake.
The deposit area is underlain by easterly trending, north dipping, Nokomis Group (Amisk equivalent) Kisseynew type gneisses. The mineralization occurs within intercalated hornblende±pyroxene-garnet gneisses and amphibolites at the top of the Nokomis Group gneisses within 5 to 10 m (16.4 to 32.8 ft) of the contact with the overlying Sherridon Group quartz-feldspar-biotite gneisses. The host rocks have been metamorphosed to amphibolite facies.
The deposit, which is not exposed at surface, consists of a conformable sulphide zone within Kisseynew Group garnetiferous quartz-biotite gneiss to quartz-hornblende-biotite gneiss and schist.
The mineralization is felt to occur at the top of the Nokomis Group within 5 to 10 m (16.4 to 32.8 ft) of the hanging wall Sherridon Group quartz-feldspar-biotite gneiss. The disseminated to semi-massive mineralization consists of up to 60% pyrrhotite, 15% pyrite, 15% chalcopyrite and 5% sphalerite. Overall, the average sulphide content of the zone is <10%.
Drilling has delineated the 1-2 m thick zone over a strike length of 250 m (820.2 ft) to a vertical depth of 210 m (688.98 ft) (275 m or 902.2 ft down dip). The better intersections from delineation drilling are as follows:
DRILLHOLE WIDTH TRUE WIDTH OZ./TON PCT PCT INTERSECTION
NUMBER (FT) (FT) AU AG CU ZN MINERALIZATION
_____________________________________________________________________________
TYR-9 5.2 --- ---- ---- 3.82 1.80 60% po, cpy, sf
TYR-11 5.0 --- 0.016 0.32 4.36 1.20 60% po, 20% cpy, sf
TYR-13 8.7 --- tr tr 1.12 0.60 3% py + po, <1% cpy+sf
TYR-14 6.7 --- tr 0.17 3.07 .050 10% py + po, cpy, sf
TYR-17 3.8 --- 0.020 0.55 3.82 2.80 50% po, 5% Cu, 3% Zn
TRY-19 4.8 --- tr tr 1.19 ---- 60% po, 5-12% cpy, sf
TYR-19W 7.3 --- tr 0.25 2.64 0.90 60% po, cpy, sf
TYR-22 1.1 --- 0.01 0.15 2.20 2.50 40% po, 8% cpy, 2% sf
TYR-23 4.2 --- ---- ---- 1.07 1.00 60% py, 10% cpy, 6% sf
TYR-24 10.0 --- ---- ---- 0.73 ---- 5% py + po, cpy, sf
TYR-25 7.6 --- 0.03 0.14 3.16 0.50 40% py, 3% cpy, 1% sf
TYR-33 4.5 --- ---- ---- 0.85 ---- 4% py-po, 3% cpy, sf
T-103 8.9 8.4 ---- ---- 0.08 0.04 5% py, tr cpy
T-104 0.4 0.3 ---- ---- 0.06 ---- 5-75% py, cpy
In 1954, Byers and Dahlstrom mapped the showing host rock as Kisseynew Group unit 8a or garnet-hornblende gneiss. To the south, this unit contacts with unit 9b or metamorphosed greywacke. To the north, the host unit contacts with an east-west-trending band of granodiorite. After re-mapping the host unit in the 1980's, K. Ashton interpreted the deposit host rock, or unit V3, as intermediate to mafic volcanic and volcaniclastic rocks.
- Geological Domain
- Flin Flon
- Host Rocks
- Host Minerals
- Indicators
- Exploration History
- 8/11/1988 In 1966, the Hudson Bay Exploration and Development Co. Ltd. Completed ground EM surveys over CBS 755 (AF 63L16-0028) and diamond drilled 35 holes (AF 63L16-0026) in the Little Otonadah Lake - Tyrell Lake Area on several small east-trending electromagnetic conductors. Eighteen of the holes were drilled on a small 1500 ft (457.2 m) long anomaly approximately 0.5 miles (0.8 km) north of Little Otonadah Lake. Drill hole TYR-9 intersected the mineralization that was later named the TYR Zone or the Tyrrell Lake Zone. The better drill intersections are reported above.
In 1973, Hudson Bay completed drill holes T-103 and T-104 to test the TYR Zone at depth (AF 63L16-0055). By this time, Hudson Bay had restaked the zone as CBS 925. On September 9, 1975, CBS 925 was converted to ML 5171.
In 1991, Hudson Bay completed drill hole T-105 on the showing (AF 63L16-0144). The drill hole failed to intersect any mineralization which returned values.
On 12 September 2006, Murgor Resources Inc. announced that hey have purchased 100% of the FON, TYR, and Abbot Lake base metal deposits from Hudson Bay Exploration and Development.
- Production History
- Reserves and/or Resources
- 1968-01-01
132,000 short tons of ore grading 2.80% Cu, 1.2% Zn, 0.016 oz/ton Au, and 0.23 oz/ton Ag. 99,500 tonnes grading 0.651 g/t Au, 9.60 g/t Ag, 3.36% Cu, and 1.40% Zn.
Summary:
Historic reserve (unspecified) of 132,000.00 ton
- Copper @ 2.8 %
- Gold @ 0.016 oz/ton
- Silver @ 0.23 oz/ton
- Zinc @ 1.2 %
Historic reserve (unspecified) of 99,500.00 tonne
- Copper @ 0.0336 %
- Gold @ 0.651 g/ton
- Silver @ 9.6 g/ton
- Zinc @ 1.4 %