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Occurrence Details


Occurrence Number
105A 006
Occurrence Name
Nazo
Occurrence Type
Hard-rock
Status
Drilled Prospect


General Information

Secondary Commodities: barite, copper, zinc, silver, lead
Deposit Type(s): Vein Polymetallic Ag-Pb-Zn+/-Au
Location(s): 60.022220 N, -128.638890 W
NTS Mapsheet(s): 105A02
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No

Capsule

Work History

Staked as Jim and Moose cl (79908) in Oct/62 by F. Lutz. Restaked as the Barite cl (89020) in Jan/65 by R. Kirk; as Kirk cl (Y22856) in Apr/68 by C. Pete; as Naza cl (Y29140) in May/69 by N. Zinchuk, who performed a small amount of trenching in 1969, 1971 and 1973; as N cl (Y84149) in Jun/75 by P. Kremar; and as Roman cl 1-16 (YA36877) in Jun/79 by J. Melnychuk. The Roman group was explored with mapping and geochemical sampling in 1979 and 1980 by St Joseph Explorations Ltd under an option. Logan Mines Ltd drilled two holes (123.1 m) and carried out EM geophysical surveying in 1980 as a condition leading to an option on the property. In 1981 Logan Mines carried out soil sampling and magnetometer surveying. Alex Black tied on Brod cl 1-2 (YA57123) on the west side in Oct/80 and carried out geological mapping in 1981.
Melnychuk tied on Man cl 1-24 (YA70060), Rom cl 17-20 (YA70285) and Rom cl 25-44 (YA70169) in May/83 in conjunction with B. Price and P. Christopher and optioned the property briefly to Billiton, which carried out EM, magnetic, IP and gravity surveying in 1984. The claims were transferred to Samarkand Resources Inc in 1986, which carried out geological mapping, sampling, EM and magnetometer surveying in 1987. Harrisburg-Dayton Resource Corp acquired the option in 1988 and Fairlady Energy Inc restaked the occurrence as RM cl 1-47 (YB14647) in Aug/88. J. Lebare tied on Roman cl 9-20 (YB16701) to the north in Nov/89.
In Feb/96 Nu-Lite Industries Ltd staked Lee cl 1-10 (YB77736) and Luck cl 1-10 (YB77746) to the east. KRL Resources Corp restaked the occurrence as Watson cl 1-30 (YB78389) and Liard cl 1-28 (YB78363) in Mar/96 and optioned the Lee and Luck claims from Nu-Lite. KRL then carried out airborne geophyscial surveying over the area later in March and ground geophysical surveying, grid soil sampling, trenching and prospecting later in the year. The company added Steph cl 1-6 (YB84651) on the east side of the claim group in Jul/96; Rapid cl 1-12 (YB89290) on the north side in May/97; Liard cl 29-34 (YB89346) and Rapid cl 29-34 (YB89346) also to the north and Watson cl 31F-32F within the block in Jun/97. KRL drilled 5 holes (748 m) and carried out limited prospecting, geological mapping and soil sampling in 1997.

Capsule Geology

Galena and sphalerite occur in quartz-calcite-barite veins cutting a strongly contorted sequence of Ordovician carbonaceous shale, pyritic chert and phyllite. Several of the veins are conformable with the foliation. Two chip samples across a 4 m thick barite vein averaged 0.9% Pb, 0.3% Zn, 3.1 g/t Ag and 19.7% Ba. Two chip samples across a 30 cm thick quartz vein averaged 14.4% Zn, 0.2% Pb, 0.3% Cu, 9.9 g/t Ag and trace Ba. One hole drilled in 1980 intersected a 1.3 m quartz vein with minor mineralization, while the other cut an unmineralized fracture zone and thin pyritic bands.
Pyritic dacite dykes cut the sediments near the showings and a mineralized barite vein 0.5 to 1.0 m wide on the south bank of the river parallels the edge of a quartz-feldspar porphyry dyke about 1 m wide.
KRL¿s work focused on an area west of the Liard River located between this occurrence and one 2.5 km to the southeast (Minfile Occurrence #105A 005). Soil sampling in 1996 returned a series of anomalous gold values (122 ppb to 1 421 ppb Au) from an area midway between the two occurrences. Subsequent detailed sampling failed to reproduce the anomaly and it was determined that recent alluvial deposits flanking the river were the source of the anomaly. Drilling in 1997 intersected bedded sequences of dolomitic slates, siltstone and argillite with lesser sandstone. Minor base metal enrichment was detected in several lithologies in 3 of the 5 holes and consisted of minor sphalerite and galena mainly within veins and as recrystalized grains in the enclosing rocks.

References

GEORGE CROSS NEWSLETTER, 15 Nov/88; 13 May/96; 13 Jun/96; 17 Sep/96; 20 Nov/96; 27 Feb/97; 15 May/97; 11 Jul/97.
 

Location Map

Last Updated: Aug 27, 2018

Work History

Year Work Type Comment
1997 Drilling: Diamond Five holes, 748 m.
1997 Geochemistry: Soil
1997 Geology: Bedrock Mapping
1997 Other: Prospecting
1996 Airborne Geophysics: Magnetic Also VLF-EM survey.
1996 Geochemistry: Soil
1996 Other: Prospecting
1996 Trenching
1996 Ground Geophysics: Magnetics Also VLF-EM.
1987 Ground Geophysics: IP Also resistivity survey.
1984 Ground Geophysics: Gravity Survey
1984 Trenching
1981 Geology: Bedrock Mapping
1980 Drilling: Diamond Two holes, 123.1 m.
1980 Geochemistry: Soil
1980 Geology: Bedrock Mapping
1980 Ground Geophysics: EM
1979 Geochemistry: Soil
1979 Geology: Bedrock Mapping
1979 Trenching
1973 Trenching
1971 Trenching
1969 Trenching

Regional Geology - Terrane

Group: Ancestral North America
Affinity: W Laurentia
Name: North America - basinal strata
Realm: Laurentia


Regional Geology - Bedrock

Supergroup:
Group/Suite: Earn
Formation:
Member:
Terrane: Laurentia
Period Max: Devonian
Age Max: 385 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: argillite, siltstone
Rock Minor: sandstone, conglomerate
Reference: Mortensen & Murphy (2005) - YGS OF 2005-10
Geological Unit (1M): DME
Geological Unit (250K): DME1

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
093739 1996 Geophysical, Geochemical, Trenching and Prospecting Report on the Watson Property Electromagnetic - Airborne Geophysics, Soil - Geochemistry, EM - Ground Geophysics, Prospecting - Other, Backhoe - Trenching

Related References

Number Title Page(s) Document Type
ARMC007827 Heavy mineral sampling map - Watson Lake - Anmac project Geochemical Map
YEG1983 Yukon Exploration and Geology 1983 130 Annual Report
YEG1984 Yukon Exploration 1984 39 Annual Report
YEG1979_80 Yukon Geology and Exploration 1979-80 139 Annual Report
Citations
Dawson, G.M., 1889. Report on an exploration in the Yukon District, NWT, and adjacent northern portion of British Columbia, 1887. In: Geological and Natural History Survey of Canada reports and maps of investigations and surveys, 1887-1888, Selwyn, A.R.C. (ed.). Geological Survey of Canada, Annual Report vol. 3, (1887-1888), part B, p. 99.

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