General Information
Secondary Commodities: copper, zinc, lead
Deposit Type(s): Vein Au-Quartz
Location(s): 63.95 N, -139.3575 W
NTS Mapsheet(s): 115O14
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Yukon Gold C drove an adit over 275 m long from the base of the hill in 1915-16 to serve as a drain for placer tailings from a hydraulic mining operation on Oro Fino Hill. No records of early lode claims have been found.
Restaked as Synd, Dawson & '83' cl (YA79198, YA79509 etc) in Oct/83 by Arbor Res L, Ebony Gold Corp and Falmouth Mls L, which explored with geochem, airborne Input EM, VLF-EM and IP surveys and drilled 2 holes (about 200 m) in 1984 on claim '83'-31. Faith ML optioned 50% of Arbor's interests in Jun/89 and performed geochem surveys and trenching later that year.
In the fall of 1990, a joint venture consisting of Ebony Gold and Klondike Reef Mines conducted an IP and resistivity survey on the Dawson 9-12 and '83' 21-22 claims. The '83' 1-40, Dawson 1-140 and Dawson 201-248 claims were optioned to Kennecott Canada Inc in May/93.
In 1994 Kennecott carried out a large program of ground geophysics, auger soil sampling, prospecting, sampling and mapping on Arbor's holdings. In Jan/95 Kennecott dropped its option. In Jan/96 Arbor Resources changed its name to Klondike Gold Corp.
Capsule Geology
Oro Fino Hill is composed of the Permian Klondike Schist Assemblage including, quartz and feldspar augen-bearing quartz-muscovite schist (unit Psa) overlain by rusty quartz-muscovite and muscovite-quartz schist (unit Psqm). Minor carbonaceous phyllite occurs near the contact between the two units. Mineralization was intersected by an adit driven by Yukon Gold Corporation in 1916 to provide a drain for placer tailings from workings on Oro Fino Hill. Several shallow southwest-dipping graphitic shears that parallel the dominant foliation in the rocks are present near the portal. Networks of stringers and narrow veins (to 15 cm) occur within and near these shears. The veins consist of clear to milky quartz and ferroan carbonate and contain traces of pyrite. Occasional narrow stringers of clear quartz contain up to 15% very fine-grained sulphides that occur as small knots. The sulphides consist of fine-grained intergrowths of galena, arsenopyrite and pyrite.
Ray reported grains of a material tentatively identified as a Pb-Sn-Au alloy showing indistinct exsolution textures in placer deposits at the foot of Monte Cristo Hill about 500 m downstream from the Oro Fino occurrence. Although he considered the material to be a natural alloy, it is possible that it was soldered gold flakes.
The 1984 holes tested coincident IP/EM anomalies and intersected micaceous schist with disseminated pyrite. The 1987 trenches and drill holes cut quartz stringers with base metal sulphides, but precious metal contents were low.
In the Boulder Creek area (southeast corner Dawson claims), Kennecott in 1994 discovered weakly mineralized quartz vein float boulders which assayed up to 0.14 g/t Au, 40.6 g/t Ag and 210 ppm arsenic. No follow up work was carried out.
References
ARBOR RESOURCES LTD, 1991. Assessment Report #092972 by D.G. Mark.
ARBOR RESOURCES LTD, STANDARD GOLD MINES LTD and GALLANT GOLD MINES LTD, Nov/87. Assessment Report *#091981 by Z. Dvorak.
DAWSON DAILY NEWS, 4 Apr/16.
DAWSON SYNDICATE (1983) EXPLORATION LIMITED, 1984. Assessment Report #091546 by R.A. Gonzalez
DAWSON SYNDICATE (1983) EXPLORATION LIMITED, 1986. Assessment Report #091807 by P. Grunenberg and A.G. Troup
DAWSON SYNDICATE (1983) EXPLORATION LIMITED, 1987. Assessment Report #091757 by P. Grunenberg and R.A. Gonzalez
EBONY GOLD CORPORATION and Archean Engineering Limited, 1988. Assessment Report #062303 by R.A. Gonzalez
GEORGE CROSS NEWSLETTER, 2 Jun/89; 8 Nov/89; 30 Aug/94; 10 Nov/94; 23 Jan/96.
KENNECOTT CANADA INC, and Ebony Gold Corp., Cream Silver Mines Ltd., and Aurizon Mines Ltd., 1994. Assessment Report #093509 by R. Cranswick, A. Doyle.
KENNECOTT CANADA INC, Wealth Resources Ltd., and Arbour Resources INC, 1994. Assessment Report #093211 by R. Cranswick, A. Doyle.
KENNECOTT CANADA INC,1994. Assessment Report #093209 by R. Cranswick, S. de Wit and A. Vary.
KENNECOTT CANADA INC,1995. Assessment Report #093319 by R. Cranswick, S. de Wit and A. Vary.
KENNECOTT CANADA INC, Jul/95. Assessment Report #093321 by R. Cranswick, S. de Wit and A. Vary.
LOCKWOOD PETROLEUM INC,and Tiburon Petroleum Corp., 1987. Assessment Report #091747 by P.E Walcott
MORTENSEN, J.K., Geological Compilation Maps of the Northern Stewart River map area Klondike and Sixtymile Districts (115N/15,16; 115O/13,14 and parts of 115O/15,16). Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open file 1996-1 (G).
RAY, D.G., 1962. The Mineralogy of some Heavy Sands from the Klondike District. Unpublished B.Sc. thesis, University of British Columbia.
YUKON EXPLORATION 1985-86, p. 372-373; 1987, p. 296-299.
YUKON EXPLORATION AND GEOLOGY 1984, p. 203-206.
YUKON EXPLORATION & GEOLOGY 1995, p. 9, 11, 12.
Yukon Gold C drove an adit over 275 m long from the base of the hill in 1915-16 to serve as a drain for placer tailings from a hydraulic mining operation on Oro Fino Hill. No records of early lode claims have been found.
Restaked as Synd, Dawson & '83' cl (YA79198, YA79509 etc) in Oct/83 by Arbor Res L, Ebony Gold Corp and Falmouth Mls L, which explored with geochem, airborne Input EM, VLF-EM and IP surveys and drilled 2 holes (about 200 m) in 1984 on claim '83'-31. Faith ML optioned 50% of Arbor's interests in Jun/89 and performed geochem surveys and trenching later that year.
In the fall of 1990, a joint venture consisting of Ebony Gold and Klondike Reef Mines conducted an IP and resistivity survey on the Dawson 9-12 and '83' 21-22 claims. The '83' 1-40, Dawson 1-140 and Dawson 201-248 claims were optioned to Kennecott Canada Inc in May/93.
In 1994 Kennecott carried out a large program of ground geophysics, auger soil sampling, prospecting, sampling and mapping on Arbor's holdings. In Jan/95 Kennecott dropped its option. In Jan/96 Arbor Resources changed its name to Klondike Gold Corp.
Capsule Geology
Oro Fino Hill is composed of the Permian Klondike Schist Assemblage including, quartz and feldspar augen-bearing quartz-muscovite schist (unit Psa) overlain by rusty quartz-muscovite and muscovite-quartz schist (unit Psqm). Minor carbonaceous phyllite occurs near the contact between the two units. Mineralization was intersected by an adit driven by Yukon Gold Corporation in 1916 to provide a drain for placer tailings from workings on Oro Fino Hill. Several shallow southwest-dipping graphitic shears that parallel the dominant foliation in the rocks are present near the portal. Networks of stringers and narrow veins (to 15 cm) occur within and near these shears. The veins consist of clear to milky quartz and ferroan carbonate and contain traces of pyrite. Occasional narrow stringers of clear quartz contain up to 15% very fine-grained sulphides that occur as small knots. The sulphides consist of fine-grained intergrowths of galena, arsenopyrite and pyrite.
Ray reported grains of a material tentatively identified as a Pb-Sn-Au alloy showing indistinct exsolution textures in placer deposits at the foot of Monte Cristo Hill about 500 m downstream from the Oro Fino occurrence. Although he considered the material to be a natural alloy, it is possible that it was soldered gold flakes.
The 1984 holes tested coincident IP/EM anomalies and intersected micaceous schist with disseminated pyrite. The 1987 trenches and drill holes cut quartz stringers with base metal sulphides, but precious metal contents were low.
In the Boulder Creek area (southeast corner Dawson claims), Kennecott in 1994 discovered weakly mineralized quartz vein float boulders which assayed up to 0.14 g/t Au, 40.6 g/t Ag and 210 ppm arsenic. No follow up work was carried out.
References
ARBOR RESOURCES LTD, 1991. Assessment Report #092972 by D.G. Mark.
ARBOR RESOURCES LTD, STANDARD GOLD MINES LTD and GALLANT GOLD MINES LTD, Nov/87. Assessment Report *#091981 by Z. Dvorak.
DAWSON DAILY NEWS, 4 Apr/16.
DAWSON SYNDICATE (1983) EXPLORATION LIMITED, 1984. Assessment Report #091546 by R.A. Gonzalez
DAWSON SYNDICATE (1983) EXPLORATION LIMITED, 1986. Assessment Report #091807 by P. Grunenberg and A.G. Troup
DAWSON SYNDICATE (1983) EXPLORATION LIMITED, 1987. Assessment Report #091757 by P. Grunenberg and R.A. Gonzalez
EBONY GOLD CORPORATION and Archean Engineering Limited, 1988. Assessment Report #062303 by R.A. Gonzalez
GEORGE CROSS NEWSLETTER, 2 Jun/89; 8 Nov/89; 30 Aug/94; 10 Nov/94; 23 Jan/96.
KENNECOTT CANADA INC, and Ebony Gold Corp., Cream Silver Mines Ltd., and Aurizon Mines Ltd., 1994. Assessment Report #093509 by R. Cranswick, A. Doyle.
KENNECOTT CANADA INC, Wealth Resources Ltd., and Arbour Resources INC, 1994. Assessment Report #093211 by R. Cranswick, A. Doyle.
KENNECOTT CANADA INC,1994. Assessment Report #093209 by R. Cranswick, S. de Wit and A. Vary.
KENNECOTT CANADA INC,1995. Assessment Report #093319 by R. Cranswick, S. de Wit and A. Vary.
KENNECOTT CANADA INC, Jul/95. Assessment Report #093321 by R. Cranswick, S. de Wit and A. Vary.
LOCKWOOD PETROLEUM INC,and Tiburon Petroleum Corp., 1987. Assessment Report #091747 by P.E Walcott
MORTENSEN, J.K., Geological Compilation Maps of the Northern Stewart River map area Klondike and Sixtymile Districts (115N/15,16; 115O/13,14 and parts of 115O/15,16). Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open file 1996-1 (G).
RAY, D.G., 1962. The Mineralogy of some Heavy Sands from the Klondike District. Unpublished B.Sc. thesis, University of British Columbia.
YUKON EXPLORATION 1985-86, p. 372-373; 1987, p. 296-299.
YUKON EXPLORATION AND GEOLOGY 1984, p. 203-206.
YUKON EXPLORATION & GEOLOGY 1995, p. 9, 11, 12.
Location Map
Last Updated: Jul 3, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1994 | Airborne Geophysics | Reprocessing of 1987 airborne magnetic and EM data. |
| 1994 | Geochemistry: Soil | Also rock sampling. |
| 1994 | Geology: Bedrock Mapping | |
| 1994 | Lab Work/Physical Studies: Heavy Mineral Concentrate | |
| 1990 | Ground Geophysics: IP | Also resistivity survey.Survey conducted on Dawson 9-12 and "83" 21-22 claims. |
| 1989 | Geochemistry: Soil | Also rock sampling. |
| 1989 | Trenching | |
| 1987 | Geochemistry: Soil | |
| 1987 | Trenching | |
| 1987 | Airborne Geophysics: Electromagnetic | Also magnetic survey. |
| 1985 | Geochemistry: Rock | |
| 1985 | Geochemistry: Soil | |
| 1985 | Ground Geophysics: Magnetics | Also VLF-EM survey. |
| 1984 | Airborne Geophysics: Electromagnetic | |
| 1984 | Drilling: Diamond | Three holes, 294.74 m. |
| 1984 | Drilling: Percussion | Two holes, 200 m. |
| 1984 | Geochemistry: Soil | Also rock and silt sampling. |
| 1984 | Trenching | |
| 1984 | Ground Geophysics: EM | Also VLF survey. Reconnaissance scale. |
| 1916 | Development, Underground: Drifting/Raising | Drove a 275 m adit between 1915 and 1916. |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Klondike
Formation:
Member:
Terrane: Yukon-Tanana
Period Max: Permian
Age Max: 271 MA
Period Min: Permian
Age Min: 251 MA
Rock Major: quartzite/qt-ms-cl schist/gneiss/amphibolite
Rock Minor:
Reference: Mortensen (1996) - YGS OF 1996-1(G)
Geological Unit (1M): PK
Geological Unit (250K): PK2
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 094717 | 2004 | 2004 Geological Report on the Bonanza Property | Bedrock Mapping - Geology, Line Cutting - Other | ||
| 093321 | 1994 | 1994 Annual Report on the Klondike Gold Project | Magnetic - Airborne Geophysics, Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Prospecting - Other, Backhoe - Trenching | ||
| 092690 | 1988 | Geological, Geophysical, Geochemical, and Trench Report for Work Performed by Mark Management Ltd. on the REEF Grid | All Weather Road - Development, Surface, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Magnetics - Ground Geophysics, Line Cutting - Other, Mechanical - Trenching | ||
| 091760 | 1987 | Report on Combined Helicopter Borne Electromagnetic, Magnetic, and VLF-EM Survey Bonaza-Eldorado Creek Area | Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, VTEM - Airborne Geophysics | ||
| 091757 | 1987 | Geological, Geochemical and Diamond Drill Report for Work Performed by Mark Management Ltd. on the Dawson Property | Diamond - Drilling, Drill Core - Geochemistry, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other, Mechanical - Trenching | 27 | 3151 |
| 091807 | 1985 | Geological, Geochemical and Geophysical Report for Work performed by Mark Management on the Dawson Property | Rock - Geochemistry, Soil - Geochemistry, Detailed Bedrock Mapping - Geology, EM - Ground Geophysics, Magnetics - Ground Geophysics, Heavy Mineral Concentrate - Lab Work/Physical Studies, Petrographic - Lab Work/Physical Studies, Mechanical - Trenching | ||
| 091604 | 1984 | Interpretation Report on Induced Polarization, Horizontal Loop Electromagnetic, and Magnetic Surveys | EM - Ground Geophysics, IP - Ground Geophysics, Magnetics - Ground Geophysics | ||
| 091616 | 1984 | Geological, Geochemical and Geophysical Report for Work Performed by Mark Management Ltd. on the Dawson Property | Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Heavy Mineral Concentrate - Lab Work/Physical Studies, Mechanical - Trenching | ||
| 091546 | 1983 | Regional Geochemical and Geophysical Report on the Syndicate, Dawson, William, 83, 98, Wild, and Wild Card Claims | Magnetic - Airborne Geophysics, Bedrock Mapping - Geology, EM - Ground Geophysics, Heavy Mineral Concentrate - Lab Work/Physical Studies, Data Compilation - Pre-existing Data | ||
| 060149 | 1972 | Geological and Geochemical Report Yukon Quartz Mineral Claims | Silt - Geochemistry, Soil - Geochemistry |
