Find publications, data and maps managed by the
Yukon Geological Survey

Occurrence Details


Occurrence Number
106D 108
Occurrence Name
Blende-Central
Occurrence Type
Hard-rock
Status
Prospect


General Information

Primary Commodities: lead, zinc, silver
Deposit Type(s): Sediment hosted Mississippi Valley-Type Pb-Zn (MVT)
Location(s): 64.400630 N, -134.649310 W
NTS Mapsheet(s): 106D07
Location Comments: Location based on drill collar B91-079 (AR 094955, Fig 7a)
Hand Samples Available at YGS: Yes

Capsule

Work History
Mineralization was originally noted in this vicinity by the Geological Survey of Canada in 1961 and was first staked as Will cl 1-60 (Y97990) in Jul/75 by Cyprus Anvil Mining Corporation, which carried out geological mapping, geochemical soil sampling and prospecting later in the year.

The area outside the occurrence was restaked as Blende cl 1-15 (YA43524) in Mar/81 by Archer, Cathro and Associates (1981) Ltd, which carried out geochemical rock sampling in 1981; geochemical rock sampling, prospecting and airphoto interpretation in 1982. The property was optioned by Canadian Nickel Company Ltd, which staked Blende cl 16-88 to surround the existing claims in Oct/84 and carried out geological mapping and prospecting of the newly staked claims in 1985 before dropping the option and the claims.

NDU Resources Ltd staked Blende cl 16-66 in Aug/88 to cover the occurrence and Blende cl 67-122 in the surrounding area in 1989. The company carried out geological mapping, grid geochemical soil sampling, road construction and geophysical magnetometer and VLF-EM surveying in 1989.

Billiton Metals Canada Inc optioned the property in Oct/89. In 1990, it carried out geological mapping, baseline and water quality testing, and staked Blende cl 123-128 and 1fr-28fr. In 1991, Billiton staked Blende cl 129-169 and Zinc cl 1-48 to expand the property and diamond drilled 13 holes in the central zone.

Eagle Plains Resources Ltd restaked the area over the occurrence as Mix cl 1-16 in Mar/2002 and carried out a one day property examination to assess the property's infrastructure. Eagle Plains staked Trix cl 1-46 (YC11723) to surround the Mix claims in Apr/2004; announced that it had executed a option agreement with Shoshone Silver Mining Company whereby Shoshone could earn a 60% interest in the Blende property in May/2004; and staked Trix cl 47-56 contiguously to the southeast in Aug/2004. Shoshone terminated its option in May/2005.

In Aug/2005 Eagle Plains optioned the property to Blind Creek Resources Ltd which carried out an exploration program consisting of re-logging historical diamond drill core, a ground-based gravity survey, geological mapping, geochemical sampling and prospecting. In Mar/2006 Blind Creek constructed a winter road into the property and performed grid sampling 1 km to the southwest and rock sampling near the occurrence.
In 2007 the company carried out a drill program. In 2009, Blind Creek Resources finalized the purchasing agreement for the Blende from Eagle Plains Resources and assumed 100% interest in the property.

Capsule Geology

The Blende Central occurrence is a zinc-lead-silver Mississippi Valley type prospect located on the south edge of the Mackenzie Platform, just north of the regional scale Kathleen Lakes Fault Zone. It is hosted in the upper part of the Lower Proterozoic Gillespie Lake Group dolomite, a thick sequence of interbedded clastic and carbonate sedimentary rocks that transitions upward from deep water mudstones to shallow water stromatolitic dolomite. Extension after deposition led to the deposition of Late Proterozoic sedimentary rocks in small local basins. Paleozoic limestone and dolomite unconformably overlie these strata. Mesoproterozoic Hart River gabbro and diorite sills cross-cut stratigraphy.

The occurrence lies in a mineralized corridor between the Blende-West (Main) and Blende East deposits (MINFILE 106D 064 and 106D 107). The mineralized zones occur in the core of a broad southeast-plunging anticline and are parallel to the axial planar cleavage which strikes northwest and dips steeply to the southwest.

Drilling in 2007 intersected stromatolitic and oolitic layers of dolomite with short spaced intervals of breccia and vein-hosted sphalerite and galena, e.g., drillhole BE07111 intersected four 1.0 m intervals of an average of 4.35% Zn+Pb and one interval of 8.0 m @ 3.4% Pb+Zn. The mineralization consists mostly of yellow sphalerite, which is difficult to distinguish from the host dolomite. Other sulphide minerals include galena, pyrite and minor chalcopyrite and tetrahedrite.

Location Map

Last Updated: Nov 15, 2019

Work History

Year Work Type Comment
2007 Drilling: Diamond
2007 Geology: Detailed Bedrock Mapping
2006 Development, Surface: Winter Road
2006 Geochemistry: Rock
2005 Geochemistry: Rock
2005 Geology: Detailed Bedrock Mapping
2005 Ground Geophysics: Gravity Survey
2005 Pre-existing Data: Process/Interpret Relogged historic diamond drillcore
2002 Other: Cursory Property Visit
1991 Drilling: Diamond 13 holes
1990 Geology: Detailed Bedrock Mapping
1989 Geochemistry: Soil
1989 Geology: Detailed Bedrock Mapping
1989 Ground Geophysics: EM
1989 Ground Geophysics: Magnetics
1982 Airphotography: Interpretation
1981 Geochemistry: Rock
1975 Geochemistry: Soil
1975 Geology: Detailed Bedrock Mapping

Regional Geology - Terrane

Group:
Affinity:
Name:
Realm:


Regional Geology - Bedrock

Supergroup:
Group/Suite:
Formation:
Member:
Terrane:
Period Max:
Age Max: MA
Period Min:
Age Min: MA
Rock Major:
Rock Minor:
Reference:
Geological Unit (1M):
Geological Unit (250K):

Assessment Reports that overlap occurrence

Report Number Year Title Worktypes Holes Drilled Meters Drilled
097217 2018 Assessment Report Describing Heritage Resource Overview & Impact Assessments of the Blende Property Heritage/Archeological - Studies
095641 2007 Diamond Drilling, Geological and Geochemical Report for the Blende Property Diamond - Drilling, Drill Core - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other 15 3410.90
094955 2006 Diamond Drilling, Geological and Geochemical Report for the Blende Property Diamond - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology 23 5550.40
094971 2005 Geological Report for the Target Evaluation 05-043, Blende Deposit Area - Far East Zone Gravity - Airborne Geophysics, Reverse Circulation - Airborne Geophysics, Rock - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Soil - Geochemistry, Prospecting - Other, Research/Summarize - Pre-existing Data
094407 2003 Assessment Report for the Blende Property, Mix 1-16 Claims Property Evaluation - Other
093005 1991 Assessment Report, Blende 123-169, Fr 1-28 and Zinc 1-48 Claims Diamond - Drilling, Drill Core - Geochemistry 62 11525.10
092942 1990 Assessment Report, Blende 1-128 and Fr. 1-28 Claims] Diamond - Drilling, Drill Core - Geochemistry, Bedrock Mapping - Geology, Environmental Assessment/Impact - Studies 15 3659.70
092795 1989 Blende Property 1989 Final Report Diamond - Drilling, Drill Core - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics 3 720.32
062294 1987 Geologic Report on the Blende Mineral Property Soil - Geochemistry, Bedrock Mapping - Geology
091665 1985 Geological Report, Blende 16-88 Claims Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology
090076 1975 Geological and Geochemical Report on the Will Claims Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other

Related References

Number Title Page(s) Document Type
Citations
Moose Mountain Technical Services, 2018. NI 43-101 Resource Estimate for the Blende Property. Submitted to Blind Creek Resources Ltd, May 24, 2018. <accessed from www.sedar.com on November 12, 2019>
Transpolar Geological Consultants, 2005. Technical report and Recommendations – Blende Project. Prepared for Blind Creek Resources Ltd.

Submit Information to Yukon Geological Survey

Name:

E-mail:

Comment: