General Information
Secondary Commodities: copper, gold, silver, tungsten
Deposit Type(s): Skarn W
Location(s): 61.255560 N, -130.585560 W
NTS Mapsheet(s): 105G07
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Howdee cl 1-16 (YA45711) in Sep/79 by Chevron Canada Ltd, which explored with prospecting, mapping and geochemical surveys in 1978-1980.
Restaked as Goal cl 122-319 (YB60658) between Oct/95 and Feb/96 by Expatriate Resources Ltd which carried out soil sampling, and prospecting later in the year. In 1997 the company carried out further soil sampling and prospecting, and in 1998 geological mapping, hand trenching and follow-up soil sampling and prospecting.
Capsule Geology
The Howdee occurrence lies within the Yukon-Tanana Terrane in the Finlayson Lake area. Geological mapping completed by Murphy and Piercey (1999) of the Yukon Geology Program shows that the occurrence area is predominantly underlain by the Devonian to Early Mississippian Fire Lake mafic metavolcanic unit (unit DMF). The mafic metavolcanics are overlain by the Mississippian Grass Lakes Succession comprised of carbonaceous phyllite (unit MKcp) and a small body of Kudz Ze Kayah felsic metavolcanic unit (unit MK). To the north and west, a large body of Devonian to Mississippian variably serpentinized ultramafic rock (unit DMum) intrudes the sequence near the base of unit DMF. Murphy and Piercey suggest that the ultramafic rocks are sills that flowed from dykes lying along the trend of thickness changes in unit DMF. A Cretaceous, granitic intrusion (unit Kg) intrudes the sequence to the east.
The occurrence consists of three mineralized areas, which Expatriate named (from south to north) the Chapman showing, the E1 zone and the E2 target area. The Chapman showing is one of two previously explored areas. It consists of scheelite mineralization within calc-silicate bearing, discontinuous limy bands. Scheelite and a trace of chalcopyrite were also found in two small, fault-related calc-silicate zones adjacent to quartz veins and silicified shear zones. Host rocks are quartz-muscovite schist and quartz-feldspar(± biotite) augen gneiss located near the margin of the Cretaceous intrusion. The 1978-80 work (mapping, soil sampling and soil panning) outlined tungsten anomalies associated with the Chapman showing and anomalies that could not be correlated to known mineralization. Analysis for tin produced only background values, but several samples returned between 20-317 ppb Au (Cathro and Schmidt, 1981).
The E1 zone, located about 1 km north of the Chapman showing, is defined by a 500 m long, copper soil anomaly (up to 430 ppm). The zone encompasses mineralization located in 1980, (Cathro, 1981) consisting of scheelite mineralization within a banded calc-silicate schist, apparently formed between the lime-rich host rock and a large quartz vein filled shear zone. Later work (Eaton, 1998) discovered malachite and azurite stained mafic metavolcanic float which yielded 1.4g/t Ag and 0.27% Cu. Minor disseminated pyrrhotite with trace amounts ofchalcopyrite, malachite and azurite, found in weakly limonitic quartz-biotite-muscovite schist and quartz-chlorite schist, yielded up to 1.4g/t Ag, 1 930 ppm Cu, 12 ppm Pb, 80 ppb Au and 2 800 ppm WO3 (Wengzynowski, 1999).
The E2 target area, located about 3 km north of the Chapman showing, covers a strong Cu +/- W soil anomaly and two mineralized showings, the Kel and the Crown. The Kel showing consists of disseminated pyrrhotite and scheelite in a narrow gabbroic dyke that returned 1.7% WO3 (Burgert, 1997). Later work (Eaton, 1999) noted localized concentrations of scheelite in quartz-actinolite veins, between 5-8 cm wide, within a southeast trending shear zone cutting across the dyke.
About 700 m west of the Kel showing, but still within the E2 target area, is the Crown Showing. It consists of a 600 m by 600 m soil anomaly which returned anomalous copper (<2 120 ppm) and tungsten (<480 ppm) values (Eaton 1999). The sample that yielded the peak values also returned 18.0 g/t Ag and 280 ppb Au. The area is underlain by chlorite schist and distinctive quartz-muscovite-chlorite schist. Both units are crosscut by quartz-actinolite +/-hornblende +/-tourmaline veins. Hand trenches dug on these veins, returned a high of 1 655 ppb Au, 99.8 g/t Ag, 2.29% Cu, 666 ppm Zn and 681 ppm Co from a 1-3 cm wide limonitic quartz rich horizon (Wengzynowski, 1999).
References
CHEVRON CANADA LTD, Jan/81. Assessment Report #090732 by R.J. Cathro and U. Schmidt.
CHEVRON CANADA LTD, Jan/81. Assessment Report #090733 by R.J. Cathro and U. Schmidt.
EXPATRIATE RESOURCES LTD, Apr/97. Assessment Report #093573 by A. Burgert.
EXPATRIATE RESOURCES LTD, May/98. Assessment Report #093788 by W.D. Eaton
EXPATRIATE RESOURCES LTD, Jun/99. Assessment Report #094016 by W.A. Wengzynowski.
EXPATRIATE RESOURCES LTD, Jan/2001. Web Site: www.expatriateresources.com
MURPHY, D.C. AND PIERCEY, S.J., 1999. Geological map of Finlayson Lake (105G/7,8 and parts of 1,2, and 9) and Frances Lake (parts of 105H/5 and 12) map areas, southeastern Yukon (1:100,000 scale). Exploration and geological Services Division, Indian and Northern Affairs Canada, Open File 1999-4.
MURPHY, D.C. AND PIERCEY, S.J., 2000. Syn-mineralization faults and their re-activation, Finlayson Lake massive sulphide district, Yukon Tanana Terrane , southeastern Yukon . In: Yukon Exploration and Geology 1998: Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada. p. 55-66.
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 182.
YUKON GEOLOGY AND EXPLORATION 1997, p. 16, 36. 1999, p. 29. 2000, p. 9, 25, 27.
Staked as Howdee cl 1-16 (YA45711) in Sep/79 by Chevron Canada Ltd, which explored with prospecting, mapping and geochemical surveys in 1978-1980.
Restaked as Goal cl 122-319 (YB60658) between Oct/95 and Feb/96 by Expatriate Resources Ltd which carried out soil sampling, and prospecting later in the year. In 1997 the company carried out further soil sampling and prospecting, and in 1998 geological mapping, hand trenching and follow-up soil sampling and prospecting.
Capsule Geology
The Howdee occurrence lies within the Yukon-Tanana Terrane in the Finlayson Lake area. Geological mapping completed by Murphy and Piercey (1999) of the Yukon Geology Program shows that the occurrence area is predominantly underlain by the Devonian to Early Mississippian Fire Lake mafic metavolcanic unit (unit DMF). The mafic metavolcanics are overlain by the Mississippian Grass Lakes Succession comprised of carbonaceous phyllite (unit MKcp) and a small body of Kudz Ze Kayah felsic metavolcanic unit (unit MK). To the north and west, a large body of Devonian to Mississippian variably serpentinized ultramafic rock (unit DMum) intrudes the sequence near the base of unit DMF. Murphy and Piercey suggest that the ultramafic rocks are sills that flowed from dykes lying along the trend of thickness changes in unit DMF. A Cretaceous, granitic intrusion (unit Kg) intrudes the sequence to the east.
The occurrence consists of three mineralized areas, which Expatriate named (from south to north) the Chapman showing, the E1 zone and the E2 target area. The Chapman showing is one of two previously explored areas. It consists of scheelite mineralization within calc-silicate bearing, discontinuous limy bands. Scheelite and a trace of chalcopyrite were also found in two small, fault-related calc-silicate zones adjacent to quartz veins and silicified shear zones. Host rocks are quartz-muscovite schist and quartz-feldspar(± biotite) augen gneiss located near the margin of the Cretaceous intrusion. The 1978-80 work (mapping, soil sampling and soil panning) outlined tungsten anomalies associated with the Chapman showing and anomalies that could not be correlated to known mineralization. Analysis for tin produced only background values, but several samples returned between 20-317 ppb Au (Cathro and Schmidt, 1981).
The E1 zone, located about 1 km north of the Chapman showing, is defined by a 500 m long, copper soil anomaly (up to 430 ppm). The zone encompasses mineralization located in 1980, (Cathro, 1981) consisting of scheelite mineralization within a banded calc-silicate schist, apparently formed between the lime-rich host rock and a large quartz vein filled shear zone. Later work (Eaton, 1998) discovered malachite and azurite stained mafic metavolcanic float which yielded 1.4g/t Ag and 0.27% Cu. Minor disseminated pyrrhotite with trace amounts ofchalcopyrite, malachite and azurite, found in weakly limonitic quartz-biotite-muscovite schist and quartz-chlorite schist, yielded up to 1.4g/t Ag, 1 930 ppm Cu, 12 ppm Pb, 80 ppb Au and 2 800 ppm WO3 (Wengzynowski, 1999).
The E2 target area, located about 3 km north of the Chapman showing, covers a strong Cu +/- W soil anomaly and two mineralized showings, the Kel and the Crown. The Kel showing consists of disseminated pyrrhotite and scheelite in a narrow gabbroic dyke that returned 1.7% WO3 (Burgert, 1997). Later work (Eaton, 1999) noted localized concentrations of scheelite in quartz-actinolite veins, between 5-8 cm wide, within a southeast trending shear zone cutting across the dyke.
About 700 m west of the Kel showing, but still within the E2 target area, is the Crown Showing. It consists of a 600 m by 600 m soil anomaly which returned anomalous copper (<2 120 ppm) and tungsten (<480 ppm) values (Eaton 1999). The sample that yielded the peak values also returned 18.0 g/t Ag and 280 ppb Au. The area is underlain by chlorite schist and distinctive quartz-muscovite-chlorite schist. Both units are crosscut by quartz-actinolite +/-hornblende +/-tourmaline veins. Hand trenches dug on these veins, returned a high of 1 655 ppb Au, 99.8 g/t Ag, 2.29% Cu, 666 ppm Zn and 681 ppm Co from a 1-3 cm wide limonitic quartz rich horizon (Wengzynowski, 1999).
References
CHEVRON CANADA LTD, Jan/81. Assessment Report #090732 by R.J. Cathro and U. Schmidt.
CHEVRON CANADA LTD, Jan/81. Assessment Report #090733 by R.J. Cathro and U. Schmidt.
EXPATRIATE RESOURCES LTD, Apr/97. Assessment Report #093573 by A. Burgert.
EXPATRIATE RESOURCES LTD, May/98. Assessment Report #093788 by W.D. Eaton
EXPATRIATE RESOURCES LTD, Jun/99. Assessment Report #094016 by W.A. Wengzynowski.
EXPATRIATE RESOURCES LTD, Jan/2001. Web Site: www.expatriateresources.com
MURPHY, D.C. AND PIERCEY, S.J., 1999. Geological map of Finlayson Lake (105G/7,8 and parts of 1,2, and 9) and Frances Lake (parts of 105H/5 and 12) map areas, southeastern Yukon (1:100,000 scale). Exploration and geological Services Division, Indian and Northern Affairs Canada, Open File 1999-4.
MURPHY, D.C. AND PIERCEY, S.J., 2000. Syn-mineralization faults and their re-activation, Finlayson Lake massive sulphide district, Yukon Tanana Terrane , southeastern Yukon . In: Yukon Exploration and Geology 1998: Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada. p. 55-66.
YUKON GEOLOGY AND EXPLORATION 1979-80, p. 182.
YUKON GEOLOGY AND EXPLORATION 1997, p. 16, 36. 1999, p. 29. 2000, p. 9, 25, 27.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1998 | Geochemistry: Soil | |
| 1998 | Other | |
| 1998 | Trenching: Hand | |
| 1997 | Geochemistry: Soil | |
| 1997 | Other | |
| 1996 | Geochemistry: Soil | |
| 1996 | Other | |
| 1979 | Geochemistry: Soil | |
| 1979 | Geology: Bedrock Mapping | |
| 1979 | Other | |
| 1979 | Other |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Grass Lakes
Formation: Kudz Ze Kayah
Member: carbonaceous phyllite
Terrane: Yukon-Tanana
Period Max: Devonian
Age Max: 365 MA
Period Min: Carboniferous
Age Min: 355 MA
Rock Major: carbonaceous phyllite
Rock Minor:
Reference: Murphy et al. (2001) - YGS OF 2001-33
Geological Unit (1M): DMF
Geological Unit (250K): DMF3
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 096515 | 2013 | 2013 Satellite Mapping on the Fyre Lake Property | Orthophoto - Airphotography | ||
| 094501 | 2004 | Assessment Report on Geological and Geochemical Surveys of the Fife 1-52 Claims | Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology | ||
| 094909 | 2003 | 2003 Report on Field Activities on the Goal Claims, The Regal Ridge Project, Yukon Territory, Canada | Tunnelling - Development, Underground, Diamond - Drilling, Bulk Sample - Lab Work/Physical Studies, Mechanical - Trenching | 14 | 628.68 |
| 094016 | 1998 | Assessment Report Describing Geological Mapping, Prospecting, and Soil Geochemistry on the Goal Net Property | Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Backhoe - Trenching | ||
| 093788 | 1997 | Assessment Report Describing Geological Mapping, Prospecting, and Soil Geochemistry on the Goal Net Property | Rock - Geochemistry, Soil - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Bedrock Mapping - Geology, Prospecting - Other, Backhoe - Trenching, Hand - Trenching | ||
| 093573 | 1996 | Assessment Report Describing Geological Mapping, Prospecting, and Soil Geochemistry and Geophysical Surveys on the Goal Net Property | Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other | ||
| 093325 | 1994 | 1994 Assessment Report Rife and Tor Properties Linecutting, Ground Geophysics (HLEM, Mag and Gravity), Soil Geochemistry and Geological Mapping | Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Gravity Survey - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other | ||
| 090733 | 1980 | Report on Geology, Panning and Geochemistry Howdee 1-16 Claims | Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology |
