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Occurrence Details


Occurrence Number
115I 153
Occurrence Name
Pika
Occurrence Type
Hard-rock
Status
Prospect


General Information

Secondary Commodities: gold, silver
Aliases: Klaza
Deposit Type(s): Epithermal Au-Ag: Low Sulphidation
Location(s): 62.118130 N, -137.244520 W
NTS Mapsheet(s): 115I03
Location Comments: Location provided by Rockhaven Resources 2019
Hand Samples Available at YGS: No

Capsule

Work History

The earliest staking records show that G.F. Dickson staked Klaza cl 1-21 (56012) in October 1947. Dickson optioned the claims to Conwest Exploration Company Ltd. Dickson re-staked the target as West cl 1-32 (74789) in April 1960.

Re-staked as May cl 1-10 (Y21016), in September 1967 by J. Wheeler, who carried out preliminary soil sampling at the Klaza occurrence (MINFILE occurrence 115I 067). In February 1968, Esansee Explorations Ltd. optioned the May claims and in March 1968 staked May cl 11-22 (Y23901). In May 1968, the company optioned Sue cl #3 from Wheeler.

Re-staked as Tawa cl 1-24 (YA48051) in August 1979 by BRX Mining & Petroleum Ltd. The company added Tawa cl 33-48 (Y50952) in July 1980 and Tawa cl 25-32 (YA51370) and cl 49-72 (YA51378) in September 1980.

Re-staked as Tawa cl 1-24 (YA75263) in October 1982 by T. Hanlon, who transferred the claims back to BRX Mining and Petroleum Ltd. In 1985, the company re-organized and changed its name to Consolidation BRX Mining and Petroleum Ltd.

Chevron Canada Resources Ltd. optioned the property in March 1986 on behalf of Freegold Venture and carried out prospecting, geological mapping, grid soil sampling and an EM-16 geophysical survey in June 1986. Based on results from this program the company staked fractional Tawa cl 25-26 (YA95051) at the end of June 1986 and Tawa cl 27-63 (YA95151) and cl 64-71(YA95301) in July 1986. In August 1987, the company staked Tawa cl 72-79 (YB06963) and cl 83-90 (YB06971) on the northwest end of their claim block.

In June 1988, Chevron Canada sub-optioned the Tawa claims to BYG Natural Resources Inc. In 1996, BYG Natural Resources carried out a large magnetic and VLF-EM ground geophysical program over most of their regional claim holdings including most of the Tawa claims.

In March 1999, BYG Natural Resources was placed into receivership and all of the company’s mineral claims were placed into receivership. On January 3, 2005 Tawa cl 1-24 (YA75263) lapsed. The remaining claims lapsed over time with the final claims lapsing on January 3, 2010.

On January 11, 2005, ATAC Resources Ltd. re-staked Tawa cl 1-24 as Klaza cl 1-24 (YC37984). In October 2005, ATAC Resources optioned a 75% interest in the claims to Bannockburn Resources Ltd. in return for shares and certain work commitments.

In July and August 2006, Bannockburn Resources cut a grid over most of the Klaza claims and carried out an induced polarization survey. On August 14, 2007 Bannockburn Resources changed its name to Lucara Diamond Corporation. In December 2007, Lucara Diamond sold its interest in the claims to Ishan Resources Ltd. for $25,000.00. In November 2008, Ishan Resources terminated its interest in the claims without performing any work and returned the claims to ATAC Resources who regained 100% interest in the claims.

On November 4, 2009 ATAC Resources optioned 100% interest in the Klaza claims to Rockhaven Resources Ltd. in return for a cash payment and shares in Rockhaven. Rockhaven immediately staked Klaza cl 25-64 (YD9205) to the north, west and south.

In 2010, Rockhaven Resources performed regional ground magnetic and EM geophysical surveys, as well as bedrock mapping and soil sampling over the Klaza claims. Rockhaven carried out follow-up soil sampling over the Klaza claims, as well as orthophoto and airborne gamma-ray and magnetic geophysical surveys in 2011. Trenching, soil sampling and diamond drilling (8 holes) were carried out at Pika in 2012.

In 2014, Rockhaven performed bedrock mapping and a ground magnetic and EM geophysical survey over the Klaza claims and drilled one diamond drill hole at the Pika occurrence. One diamond drill hole was drilled at Pika in 2015 by Rockhaven with follow-up diamond drilling in 2016 (2 holes) and 2019.

Regional & Property Geology

The occurrence is located in the Dawson Range within Yukon-Tanana Terrane (YTT). The rocks of the YTT in this region consist of Early Mississipian metamorphic rocks separated into meta-sedimentary and meta-igneous suites (Stroshein, 1998). The meta-sedimentary suite consists of micaceous quartz-feldspar gneiss, schist and quartzite of the Nasina Assemblage. The meta-igneous package is comprised of biotite-hornblende feldspar gneiss and coarse-grained granodiorite orthogneiss with lesser amphibolite. These basement rocks are cut by numerous plutonic and volcanic events from the Cretaceous and Tertiary.

The oldest exposed unit within the boundaries of the Klaza property is a pluton of the Early Jurassic Long Lake Suite (EJL), which outcrops in the northeast corner. The majority of the property is underlain by coarse-grained, non-foliated Mid-Cretaceous Whitehorse Suite granodiorite (mKW) comprised of 30% hornblende and biotite. A moderate size, quartz-rich granite to quartz monzonite Casino Suite stock (LKq) intrudes the granodiorite in the southeast corner of the property and is thought to be the main heat source for hydrothermal cells responsible for mineralization on the property. A series of northwesterly trending feldspar porphyry dykes (LKfp) emanating from the stock in the southeastern part of the property cut the Whitehorse suite granodiorite in the Klaza occurrence area. These dykes are up to 30 m wide and consist of buff aphanitic groundmass containing up to 15% orthoclase phenocrysts (1 to 2 mm) with minor biotite and rare quartz phenocrysts. The dykes commonly occupy the same structural zones as the mineralized veins and are often strongly fractured. Some veins cross-cut dykes (Turner & Dumala, 2017).

Sub-aerial volcanic and volcaniclastic rocks belonging to the Mount Nansen (mKN) and Carmacks (uKC) volcanics are found on the periphery of the property. These rocks are believed to be extrusive equivalents of the mid and Late Cretaceous intrusions, respectively (Turner & Dumala, 2017).

Mineralization & Results

The Pika occurrence is located 650 m south of Klaza (MINFILE occurrence 115I 067) and was discovered in 2010 by Rockhaven Resources. Mineralization is hosted in argillic to locally phyllic and potassic altered granodiorite and consists of semi-massive to disseminated pyrite and disseminated sphalerite ± minor galena and chalcopyrite in several discrete sub-parallel veins. Quartz-feldspar porphyry dykes, sheeted veins and local breccias were noted in association with the Pika zone.

The Pika occurrence has been tested by trenching and diamond drilling along a 740 m strike length to a depth of 250 m. Trenching carried out in 2012 returned mineralized intervals of up to 2.94 g/t Au and 190.06 g/t Ag over 3.20 m in TR-12-04. Drilling in 2012 by Rockhaven Resources intersected 2.25 g/t Au and 40 g/t Ag across 12.58 m, including sub-intervals of 9.55 g/t Au and 137 g/t Ag over 1.00 m and 11.3 g/t Au and 233 g/t Ag over 1.52 m in KL-12-114.

Diamond drilling in 2017 by Rockhaven Resources intersected mineralized intervals that returned assays of up to 1.13 g/t Au, 32.4 g/t Ag, 0.05% Pb and 0.03% Zn over 4.05 m, including 3.72 g/t Au, 51.2 g/t Ag, 0.078% Pb and 0.04% Zn over 0.56 m and 2.24 g/t Au, 102 g/t Ag, 0.156% Pb and 0.12% Zn over 0.83 m.
 

Location Map

Last Updated: Jul 26, 2022

Work History

Year Work Type Comment
2019 Drilling: Diamond
2016 Drilling: Diamond 2 diamond drill holes.
2016 Geochemistry: Rock
2016 Geochemistry: Soil
2016 Lab Work/Physical Studies: Metallurgical Tests
2016 Studies: Preliminary Economic Assessment
2015 Drilling: Diamond 1 diamond drill hole.
2015 Lab Work/Physical Studies: Metallurgical Tests
2015 Trenching: Backhoe
2014 Drilling: Diamond 1 diamond drill hole.
2014 Geology: Bedrock Mapping
2014 Ground Geophysics: Magnetics And EM.
2014 Ground Geophysics: EM
2014 Lab Work/Physical Studies: Metallurgical Tests
2014 Studies: Resource Estimate
2014 Trenching: Backhoe
2012 Drilling: Diamond 8 diamond drill holes.
2012 Geochemistry: Soil
2012 Trenching: Backhoe
2011 Airborne Geophysics: Gamma-Ray Spectrometry
2011 Airborne Geophysics: Magnetic
2011 Airphotography: Orthophoto
2011 Geochemistry: Soil
2010 Geochemistry: Soil
2010 Geology: Regional Bedrock Mapping
2010 Ground Geophysics: Magnetics And EM.
2006 Ground Geophysics: IP
1986 Geochemistry: Soil And rock sampling.
1986 Geology: Regional Bedrock Mapping
1986 Ground Geophysics: Magnetics And EM.

Regional Geology - Terrane

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Regional Geology - Bedrock

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Related References

Number Title Page(s) Document Type
YEG1998_20 A summary report on the geology of the Brown-McDade gold-silver deposit, Mount Nansen mine area, Yukon Annual Report Paper
YEG2019_5 Updated geology and porphyry copper potential of the Klaza deposit, Mount Nansen district (Yukon MINFILE 115I 067) Annual Report Paper
YEG2016_OV7 Klaza project: An expanding high-grade Au and Ag resource in the Mount Nansen gold camp Annual Report Paper
88-017 Report on the Geology and Mineral Inventory of the Mt. Nansen and Tawa Properties, Yukon Territory, with Assessment of the Economic Potential for Open Pit Mining of Oxidized Mineralization in the Brown-McDade Zone YMEP Report
90-016 1990 The Final Report on Trenching Program on the Slate Creek YMEP Report
95-012 Final Report for 1995 Prospecting Season, Klaza River Area YMEP Report
Citations
Rockhaven Resources Ltd., News Release, 4 Dec/2017; 24 Oct/2019; 16 Jan/2020

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