General Information
Secondary Commodities: gold
Deposit Type(s): Epithermal Au-Ag: Low Sulphidation
Location(s): 62.055560 N, -137.050560 W
NTS Mapsheet(s): 115I03
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Ang cl 1-8 (YB57672) by E. Curley in June 1995. Curley carried out a small exploration program later in the summer. In August 1997 Curley staked Ang cl 9-20 (YC08089) and carried out a soil sampling and bulldozer trenching program on the claim block.
The area covering the Ang occurrence was re-staked in 2011 by YES Exploration Syndicate Inc. with Olympic Resources Ltd. as Sun cl 1-192 who carried out soil sampling, bedrock mapping and prospecting over the nearby Car and Wind occurrences (MINFILE occurrences 115I 085 and 161).
In 2015, Strategic Metals Ltd. re-staked the Sun claims as Queen cl 1-121, including the Ang showing. Rockhaven Resources acquired the Queen claims from Strategic Metals later in 2015.
Regional & Property Geology
The occurrence is located in the Dawson Range within Yukon-Tanana Terrane. The Brown-McDade gold-silver deposit (MINFILE occurrence 115I 064) is located approximately 4 km to the west. 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 with local metamorphosed carbonate noted in the Brown-McDade open pit. The meta-igneous package is comprised of biotite-hornblende feldspar gneiss and coarse-grained granodiorite orthogneiss with lesser amphibolite.
The occurrence is underlain by the meta-igneous package, which includes biotite-hornblende feldspar gneiss and coarse-grained granodiorite orthogneiss with lesser amphibolite. Colpron (2014) assigned these rocks the Carboniferous Simpson Range (MgSR). The metamorphic rocks are cut by mid-Cretaceous quartz feldspar porphyry dykes belonging to the Mount Nansen Volcanic Suite.
Mineralization & Results
The Ang claims were staked to investigate a quartz feldspar porphyry dyke that cuts the meta-igneous rocks. Widespread brecciation, as well as quartz and chalcedony veinlets that host disseminated pyrite and trace galena and arsenopyrite were noted associated with the dyke.
Rock and soil samples collected in 1995 along the length of the dyke returned assays up to 46 ppb Au. Soil sampling carried out in 1997 returned assays up to 138 ppb Au and rock samples collected from 5 trenches excavated across the quartz feldspar porphyry dyke returned assays up to 47 ppb Au and 647 ppm As. Both the rock and soil samples display a weak correlation between Au and Cu, Zn, As and Sb values.
Staked as Ang cl 1-8 (YB57672) by E. Curley in June 1995. Curley carried out a small exploration program later in the summer. In August 1997 Curley staked Ang cl 9-20 (YC08089) and carried out a soil sampling and bulldozer trenching program on the claim block.
The area covering the Ang occurrence was re-staked in 2011 by YES Exploration Syndicate Inc. with Olympic Resources Ltd. as Sun cl 1-192 who carried out soil sampling, bedrock mapping and prospecting over the nearby Car and Wind occurrences (MINFILE occurrences 115I 085 and 161).
In 2015, Strategic Metals Ltd. re-staked the Sun claims as Queen cl 1-121, including the Ang showing. Rockhaven Resources acquired the Queen claims from Strategic Metals later in 2015.
Regional & Property Geology
The occurrence is located in the Dawson Range within Yukon-Tanana Terrane. The Brown-McDade gold-silver deposit (MINFILE occurrence 115I 064) is located approximately 4 km to the west. 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 with local metamorphosed carbonate noted in the Brown-McDade open pit. The meta-igneous package is comprised of biotite-hornblende feldspar gneiss and coarse-grained granodiorite orthogneiss with lesser amphibolite.
The occurrence is underlain by the meta-igneous package, which includes biotite-hornblende feldspar gneiss and coarse-grained granodiorite orthogneiss with lesser amphibolite. Colpron (2014) assigned these rocks the Carboniferous Simpson Range (MgSR). The metamorphic rocks are cut by mid-Cretaceous quartz feldspar porphyry dykes belonging to the Mount Nansen Volcanic Suite.
Mineralization & Results
The Ang claims were staked to investigate a quartz feldspar porphyry dyke that cuts the meta-igneous rocks. Widespread brecciation, as well as quartz and chalcedony veinlets that host disseminated pyrite and trace galena and arsenopyrite were noted associated with the dyke.
Rock and soil samples collected in 1995 along the length of the dyke returned assays up to 46 ppb Au. Soil sampling carried out in 1997 returned assays up to 138 ppb Au and rock samples collected from 5 trenches excavated across the quartz feldspar porphyry dyke returned assays up to 47 ppb Au and 647 ppm As. Both the rock and soil samples display a weak correlation between Au and Cu, Zn, As and Sb values.
Location Map
Last Updated: May 25, 2020
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1997 | Geochemistry: Rock | |
| 1997 | Geochemistry: Soil | |
| 1997 | Trenching: Mechanical | |
| 1995 | Geochemistry: Rock | Curley spent 2 days exploring claims. |
| 1995 | Geochemistry: Soil | Curley spent 2 days exploring claims. |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Simpson Range
Formation:
Member:
Terrane: Yukon-Tanana
Period Max: Carboniferous
Age Max: 355 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: orthogneiss
Rock Minor: amphibolite/qt-mica-schist/phyllite
Reference: Colpron (2014) - revision
Geological Unit (1M): MSR
Geological Unit (250K): MgSR
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 096080 | 2011 | Assessment Report on the Sun Property | Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other | ||
| 093661 | 1995 | A Report on the Ang Quartz Claims Mt. Nansen | Rock - Geochemistry, Soil - Geochemistry | ||
| 092599 | 1987 | Report on the 1988 Geological and Geochemical Assesssment Work on the McDade Property | Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Regional Bedrock Mapping - Geology, Prospecting - Other, Stripping - Placer Processing, Backhoe - Trenching | ||
| 092505 | 1959 | Dickson Gold Option, Carmacks, Yukon Terr. Billy Claim Group | Diamond - Drilling, Drill Core - Geochemistry, Drill Cuttings - Geochemistry, Mechanical - Trenching | 8 | 122.83 |
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 | |
| 1987-2(G) | Geology of Mt. Nansen (115I/3) and Stoddart Creek (115I/6), Dawson Range, Central Yukon | Open File (Geological - Bedrock) | |
| 1999-1(D) | Yukon Digital Geology | Open File (Geological - Bedrock) | |
| Contrib2014-1 | Terranes | Contribution | |
| 2016-1 | Yukon bedrock geology map | Open File (Geological - Bedrock) |
| Citations |
|---|
| Johnston, Stephen, T. and Mortensen, James, K., 1994. Regional setting of porphyry Cu-Mo deposits, volcanogenic massivesulphide deposits, and mesothermal gold deposits in the Yukon-Tanana Terrane, Yukon. In: Yukon Metallogeny: Recent Developments, Abstracts and Proceedings, Canadian Institute of Mining and Metallurgy, District 6 Annual General Meeting, J.L. Jambor (ed.), p. 30-34. |
| Sawyer, J.P.B. and Dickinson, R.A., 1976. Mount Nansen porphyry copper and copper-molybdenum deposits of the calc-alkaline suite. In: Porphyry Deposits of the Canadian Cordillera, T. G. Schroeter (ed.), Canadian Institute of Mining and Metallurgy, Special Vol. 15, p. 336-343. |
