General Information
Secondary Commodities: gold, silver, copper, lead, zinc
Aliases: Goulter
Deposit Type(s): Epithermal Au-Ag-Cu: High Sulphidation
Location(s): 62.083090 N, -137.185750 W
NTS Mapsheet(s): 115I03
Location Comments: Location provided by Rockhaven Resources 2019
Hand Samples Available at YGS: No
Capsule
Work History
Silver Standard Mines Ltd. staked YU cl (73506) in July 1958 and explored with mapping and EM surveys in 1958-1959.
Re-staked by G. Dickson as Wedge cl 1-15 (YA82167), by M. Muursepp as Bull cl 1-8 (YA81420) and other miscellaneous claims, in 1984. Prochem Ltd. optioned the leased claims and some of the Wedge claims and explored with soil geochemistry, prospecting, EM-16 surveys and bulldozer trenching in 1985; grid geochemistry, trenching, mapping and EM geophysics in 1986; and bedrock mapping and ground magnetics in 1988. The 1987 and 1988 work was funded by a subsidiary of Prochem's; Aurchem Resources Ltd.
In 1991, Aurchem completed property wide geological mapping, soil sampling, IP/resistivity surveys and target specific magnetometer surveys. All previous exploration results, including soil sample locations, were compiled on a new compilation map. Aurchem added JBF cl 1-7 ((fractional) YB362590) and Jon-Wedge cl 1-6 (YB35895) in August 1992 and explored with 3,384.8 m of reverse circulation drilling in 32 holes in July and August, 1992. In July 1993, the Wedge cl 1-4 and 16-17 were transferred to J. Dickson from the estate of G. Dickson. In 1993, Aurchem conducted soil geochemistry on the claims covering the Eliza N occurrence.
In March 1995, the Wedge claims were transferred to Aurchem Exploration Ltd. In early 1996, BYG obtained an option to purchase all of Aurchem's claims located in the Mt Nansen area. As part of this agreement BYG funded an extensive trenching and mapping program from August to October 96, on the Bull 2, JBF 1-f, Jon-Wedge 3 and LCGS 1 claims. BYG encountered financial difficulties at the end of 1996 and suspended most exploration activities. In February 1999, BYG announced plans to temporarily shut down the Mount Nansen Mine. In March 1999, BYG was placed in receivership and the Nansen mine became a Type II Minesite. The Wedge, Etzel and Bull claims reverted to Aurchem after the federal government took over maintenance of the adjoining Mount Nansen mine site in July 1999.
In 2009, 101073531 Saskatchewan Corp. flew a regional airborne and magnetic survey that included the Eliza N occurrence. In 2011, Ansell Capital Corp optioned the Discovery Creek property, including the Eliza N occurrence, from Aurchem Exploration. Ansell Capital carried out bedrock mapping as well as rock and soil geochemistry in 2011.
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.
Four rock types dominate the geology surrounding the occurrence and are comprised of:
1. Paleozoic metamorphic Yukon-Tanana gneiss, quartzite, and amphibolite to the south;
2. Triassic to Jurassic metamorphosed alkali-feldspar-rich plutonic suites;
3. Mid-Cretaceous Mount Nansen Suite andesite, felsic lapilli tuffs, basaltic to latite volcanic rocks; and quartz feldspar porphyry, dacite, latite, and quartz monzonite porphyritic hypabyssal rocks; and
4. Mid-Cretaceous Whitehorse granodiorite.
A porphyry copper-molybdenum complex (MINFILE occurrence 115I 066) is found in the northeast section of the property, with argillic and propylitic alteration haloes covering the remainder. The porphyry complex occurs at the intersection between a major northwest structure and an east-west fault. Copper and molybdenum ± gold and silver occur in a porphyry stock and phyllic-altered granodiorite. Surface leaching and oxidation is variable, but can reach considerable depths. A steeply dipping, northwest-striking epithermal vein system which formed peripheral to the porphyry migrated inward during cooling and collapsed, creating a complex system of overlapping mineralization including: porphyry Cu-Mo-Au-Ag; northwest striking mesothermal quartz-pyrite-gold veins; and northwest striking epithermal quartz-Au-Ag-Pb-Zn-Cu veins.
The Eliza N occurrence consists of northwest trending epithermal veins and stockwork zones cutting a zone of strong propylitic to argillic alteration.
Mineralization & Results
Mineralization at the Eliza N prospect consists of pyrite with lesser galena, sphalerite, chalcopyrite and arsenopyrite in quartz ± carbonate veins. Veins at Eliza N have higher Cu values. Low to moderate base metal values were noted associated with a five foot vein assaying 0.2% Cu and 0.04 oz/ton Au.
RC drilling performed in 1992 returned anomalous assays of up to 0.056 oz/ton Au, 1.58 oz/ton Ag, 1630 ppm Pb, 1050 ppm Zn, and >2000 ppm As over 5 feet; 0.4 oz/ton Au, 0.72 oz/ton Ag, 1728 ppm Cu, 510 ppm Pb, 888 ppm Zn, and 0.29% As over 5 feet; and 0.022 oz/ton Au, 1.15 oz/ton Ag. 1331 ppm Pb, 3820 ppm Zn and 0.95% As over 5 feet.
Silver Standard Mines Ltd. staked YU cl (73506) in July 1958 and explored with mapping and EM surveys in 1958-1959.
Re-staked by G. Dickson as Wedge cl 1-15 (YA82167), by M. Muursepp as Bull cl 1-8 (YA81420) and other miscellaneous claims, in 1984. Prochem Ltd. optioned the leased claims and some of the Wedge claims and explored with soil geochemistry, prospecting, EM-16 surveys and bulldozer trenching in 1985; grid geochemistry, trenching, mapping and EM geophysics in 1986; and bedrock mapping and ground magnetics in 1988. The 1987 and 1988 work was funded by a subsidiary of Prochem's; Aurchem Resources Ltd.
In 1991, Aurchem completed property wide geological mapping, soil sampling, IP/resistivity surveys and target specific magnetometer surveys. All previous exploration results, including soil sample locations, were compiled on a new compilation map. Aurchem added JBF cl 1-7 ((fractional) YB362590) and Jon-Wedge cl 1-6 (YB35895) in August 1992 and explored with 3,384.8 m of reverse circulation drilling in 32 holes in July and August, 1992. In July 1993, the Wedge cl 1-4 and 16-17 were transferred to J. Dickson from the estate of G. Dickson. In 1993, Aurchem conducted soil geochemistry on the claims covering the Eliza N occurrence.
In March 1995, the Wedge claims were transferred to Aurchem Exploration Ltd. In early 1996, BYG obtained an option to purchase all of Aurchem's claims located in the Mt Nansen area. As part of this agreement BYG funded an extensive trenching and mapping program from August to October 96, on the Bull 2, JBF 1-f, Jon-Wedge 3 and LCGS 1 claims. BYG encountered financial difficulties at the end of 1996 and suspended most exploration activities. In February 1999, BYG announced plans to temporarily shut down the Mount Nansen Mine. In March 1999, BYG was placed in receivership and the Nansen mine became a Type II Minesite. The Wedge, Etzel and Bull claims reverted to Aurchem after the federal government took over maintenance of the adjoining Mount Nansen mine site in July 1999.
In 2009, 101073531 Saskatchewan Corp. flew a regional airborne and magnetic survey that included the Eliza N occurrence. In 2011, Ansell Capital Corp optioned the Discovery Creek property, including the Eliza N occurrence, from Aurchem Exploration. Ansell Capital carried out bedrock mapping as well as rock and soil geochemistry in 2011.
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.
Four rock types dominate the geology surrounding the occurrence and are comprised of:
1. Paleozoic metamorphic Yukon-Tanana gneiss, quartzite, and amphibolite to the south;
2. Triassic to Jurassic metamorphosed alkali-feldspar-rich plutonic suites;
3. Mid-Cretaceous Mount Nansen Suite andesite, felsic lapilli tuffs, basaltic to latite volcanic rocks; and quartz feldspar porphyry, dacite, latite, and quartz monzonite porphyritic hypabyssal rocks; and
4. Mid-Cretaceous Whitehorse granodiorite.
A porphyry copper-molybdenum complex (MINFILE occurrence 115I 066) is found in the northeast section of the property, with argillic and propylitic alteration haloes covering the remainder. The porphyry complex occurs at the intersection between a major northwest structure and an east-west fault. Copper and molybdenum ± gold and silver occur in a porphyry stock and phyllic-altered granodiorite. Surface leaching and oxidation is variable, but can reach considerable depths. A steeply dipping, northwest-striking epithermal vein system which formed peripheral to the porphyry migrated inward during cooling and collapsed, creating a complex system of overlapping mineralization including: porphyry Cu-Mo-Au-Ag; northwest striking mesothermal quartz-pyrite-gold veins; and northwest striking epithermal quartz-Au-Ag-Pb-Zn-Cu veins.
The Eliza N occurrence consists of northwest trending epithermal veins and stockwork zones cutting a zone of strong propylitic to argillic alteration.
Mineralization & Results
Mineralization at the Eliza N prospect consists of pyrite with lesser galena, sphalerite, chalcopyrite and arsenopyrite in quartz ± carbonate veins. Veins at Eliza N have higher Cu values. Low to moderate base metal values were noted associated with a five foot vein assaying 0.2% Cu and 0.04 oz/ton Au.
RC drilling performed in 1992 returned anomalous assays of up to 0.056 oz/ton Au, 1.58 oz/ton Ag, 1630 ppm Pb, 1050 ppm Zn, and >2000 ppm As over 5 feet; 0.4 oz/ton Au, 0.72 oz/ton Ag, 1728 ppm Cu, 510 ppm Pb, 888 ppm Zn, and 0.29% As over 5 feet; and 0.022 oz/ton Au, 1.15 oz/ton Ag. 1331 ppm Pb, 3820 ppm Zn and 0.95% As over 5 feet.
Location Map
Last Updated: Aug 5, 2020
Work History
| Year | Work Type | Comment |
|---|---|---|
| 2011 | Geochemistry: Rock | |
| 2011 | Geochemistry: Soil | |
| 2011 | Geology: Bedrock Mapping | |
| 2009 | Airborne Geophysics: Magnetic | And EM. |
| 1993 | Geochemistry: Soil | |
| 1992 | Drilling: Reverse Circulation | |
| 1991 | Geochemistry: Soil | |
| 1991 | Geology: Bedrock Mapping | |
| 1991 | Ground Geophysics: IP | And magnetics. |
| 1988 | Geology: Bedrock Mapping | |
| 1988 | Ground Geophysics: Magnetics | |
| 1986 | Geochemistry: Rock | |
| 1986 | Geochemistry: Soil | |
| 1986 | Geology: Bedrock Mapping | |
| 1986 | Ground Geophysics: EM | |
| 1986 | Trenching: Hand | |
| 1985 | Geochemistry: Soil | |
| 1985 | Geology: Bedrock Mapping | |
| 1985 | Ground Geophysics: EM | |
| 1985 | Other: Prospecting | |
| 1985 | Trenching: Mechanical | |
| 1959 | Ground Geophysics: EM | |
| 1958 | Geology: Bedrock Mapping |
Regional Geology - Terrane
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Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 095471 | 2011 | Summary Report on the 2011 Reconnaissance Mapping and Soil Geochemistry Program | Rock - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology | ||
| 095089 | 2009 | Report on a Geophysical Survey on the Mount Nansen Property and the Tawa Property | Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics | ||
| 094989 | 2007 | Exploration Report for 2007 Trenching and Sampling on the Vic 30, Bull 4, J.Bill 16 Claims | Rock - Geochemistry, Bedrock Mapping - Geology, Backhoe - Trenching | ||
| 094450 | 2003 | Exploration Report for 2003 Geological, Geochemical and Trenching on the Bull, Jbf, Etzel, J-Bill and Jcs Mineral Claims | Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Cursory Property Visit - Other, Prospecting - Other, Mechanical - Trenching | ||
| 093138 | 1993 | Report on a Soil Geochemical Survey Carried out on the Discovery Creek Property on Claims of: Wedge, Jbf, Jon-Wedge, Lcgs | Soil - Geochemistry, Line Cutting - Other | ||
| 093059 | 1992 | Report on the Reverse Circulation Drilling With Assays Carried out on the Discovery Creek Property on Claims of: Wedge, Bull , Ras, Ras | Reverse Circulation - Drilling | 32 | 3384.80 |
| 092987 | 1991 | Report Magnetic and IP Surveys Discovery Creek Project | Soil - Geochemistry, Regional Bedrock Mapping - Geology, IP - Ground Geophysics, Magnetics - Ground Geophysics, Mechanical - Trenching | ||
| 092701 | 1989 | Report on the Geology and Mineral Inventory of the Mt. Nansen and Tawa Properties With Assessment of the Economic Potential for Open Pit Mining of Oxidized Mineralization in the Brown-McDade Zone | Data Compilation - Pre-existing Data, Resource Estimate - Studies | ||
| 092588 | 1988 | 1988 Diamond Drill and Exploration Program - Discovery Creek Project | Diamond - Drilling, Soil - Geochemistry, Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Mechanical - Trenching | 15 | 1219.20 |
| 091845 | 1986 | Geological, Geophysical, Geochemical and General Exploration Including Trenching was Carried out on Wedge, Ras, Lgsc, and Msl Claims | Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Line Cutting - Other, Hand - Trenching | ||
| 092153 | 1986 | Geological, Geophysical, Geochemical and General Exploration Including Trenching was Carried out on Wedge, Ras, Lgcs, and Msl Claims | Interpretation - Airphotography, Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, EM - Ground Geophysics, Metallurgical Tests - Lab Work/Physical Studies, Petrographic - Lab Work/Physical Studies, Line Cutting - Other, Mechanical - Trenching | ||
| 091658 | 1985 | Geological, Geophysical, and Geochemical Exploration Work Carried out on Wedge 5-10,15 | Interpretation - Airphotography, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Prospecting - Other, Mechanical - Trenching | ||
| 062230 | 1966 | Preliminary Feasibility Report Development and Mining Operations at the Mount Nansen Properties | Pre-feasibility - Studies | ||
| 060738 | 1959 | Report on the Reconnaissance Electromagnetic Survey in the Nansen Creek Area, Yukon Territory - Silver Standard Group, Brown McDade Group | EM - Ground Geophysics | ||
| 019091 | 1958 | Geology of Nansen Creek Area Claims Silver Standard Mines Ltd. | Bedrock Mapping - Geology | ||
| 092059 | 1958 | Report on Geology of Nansen Creek Area Claims | Detailed Bedrock Mapping - Geology |
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 | |
| YEG1997_14 | Geology and mineral deposits of the Mount Nansen camp, Yukon | Annual Report Paper |
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