General Information
Secondary Commodities: copper, molybdenum
Deposit Type(s): Porphyry Cu-Mo-Au
Location(s): 62.6875 N, -138.998610 W
NTS Mapsheet(s): 115J10
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Gep cl 1-32 (Y35852) in Jul/69 by H. Fromme and optioned to Glenlyon Mining Ltd. Explored by grid soil sampling and mapping in 1970.
Restaked Sep/92 as Maya 1-40 cl (YB37592) by Renoble Holdings Inc. Renoble staked Aztec cl 1-52 (YB37540) to the east and Koffee cl 1-58 (YB37482) to the north at the same time. In Jan/93 Renoble staked Ice cl 1-74 (YB37901) to the northwest. In Mar/93, Renoble optioned all of its claim holdings in the area (Ice, Maya, Aztec and Koffee ) to Eastfield Resources Ltd, subject to a profit sharing agreement. Eastfield also optioned the adjoining Ana claims (located to the northeast) from Nordac Mining Corp at the same time.
In Feb/93 Eastfield optioned a 50% interest in the Aztec and Maya claims to Canadian Comstock Explorations Ltd in return for certain work commitments and option payments. During the 1993 field season Comstock carried out road building, geological mapping, rock and soil sampling and ground magnetic and IP geophysical surveys on the claims. Comstock¿s option was terminated in 1994.
In Jun/96 Eastfield consolidated the Maya and adjoining Aztec, Koffee, Ana, and Ice claim blocks into the Canadian Creek property. Following consolidation Eastfield entered into an option agreement with Alexis Resources Ltd whereby Alexis was granted the right to earn an undivided 51% interest in the property by incurring $ 1 500 000 in expenditures, paying $250 000 in option payments and issuing 200 000 shares before Jun/2000. In 1996 Alexis completed geophysical and geochemical surveys and extensive excavator trenching on the Koffee and Ana claims.
In May/97 Eastfield reorganized into two companies one of which is named Wildrose Resources Ltd. The Ana, Koffee, Maya, Aztec and Ice claims were transferred to Wildrose. In 1997 Wildrose and joint venture partner Alexis Resources conducted a program of road-building, drill-pad construction and prospecting on the Canadian Creek property.
In 1999 Wildrose carried out rock and soil sampling and road reclaimation on the Ana and Koffee claims. In May/2000 Wildrose optioned 55 adjoining claims (Casino ¿B¿ claims) from Great Basin Gold Ltd (the successor company of Pacific Sentinel Corporation) and assumed responsibility for filing assessment work on 83 additional claims (Casino ¿A¿ claims) that cover the neighboring Casino deposit. Later in the year Wildrose drilled 12 diamond drill holes (2 066 m) on the Casino ¿B¿, Ana and Koffe claims. In 2001 the company carried out an evaluation program on it entire Canadian Creek property. Although little work was completed near this occurrence, assessment credit from these programs was used to keep the Maya claims (including those surrounding this occurrence) in good standing.
In Dec/2002 Wildrose optioned a 60% participating interest in it¿s Canadian Creek property to Canley Developments Inc. The agreement includes the claims covering this occurrence.
Capsule Geology
The region around the occurrence largely escaped Pleistocene glaciation. The result is that there is less than 1% outcrop by area over much of the region and weathered rocks commonly extend to depths of greater than 75m. Johnston (1995) used data acquired from an airborne multiparameter geophysical survey conducted in 1993 and 1994 to improve the existing geological knowledge of the region.
Johnston¿s work indicates that the area is underlain by Yukon Tanana Terrane rocks, consisting of Devonian to Mississippian metavolcanic and metaigneous rocks belonging to the Wolverine Creek Metamorphic Suite. The metamorphic rocks form a synform which is cored by intermediate rocks of the Mid-Cretaceous Dawson Range Batholith. The batholith consists of mafic, intermediate and felsic phases. The mafic and intermediate phases are sheet or sill-like bodies that are concordant with foliation in the `pendant¿ and in adjacent metamorphic wall rocks. The felsic phase forms discordant plugs that intrude the more mafic phases of the batholith and its wall rocks.
The Dawson Range batholith is in turn intruded by the Casino Plutonic Suite which is represented by fine- to medium-grained leucocratic granite, quartz monzonite and alaskite with associated aplite phases. The Casino Plutonic Suite is composed of stocks up to 18 km in diameter and is only exposed in the Colorado Creek (NTS 115 J/9) and Selwyn River (NTS 115 J/10) map areas. The Casino Plutonic Suite was originally thought to be Late Cretaceous (70 Ma) but work by Selby et al., (1999) indicates that although the Casino Plutonic Suite intrudes the Dawson Range Batholith, it¿s age is indistinguishable (104.2 +/- 0.5 Ma, U-Pb zircon). Late Cretaceous igneous activity produced a northwest-trending belt of small stocks, one of which, the Patton porphyry intrudes the Casino Plutonic Suite rocks and producing the copper-gold-molybdenum mineralization present at the neighboring Casino deposit (Minfile Occurrence #115J 028).
The occurrence is underlain by Dawson Range batholith biotite-hornblende granodiorite, with roof pendants of Devonian-Mississippian metasedimentary rocks, intruded by a small Late Cretaceous stock of alaskite. The granodiorite contains disseminated pyrite and shows sericitization of feldspar in one locality. Soil sampling by Glenlyon outlined a 335 m long copper soil anomaly in the occurrence area. A small 150 m by 150 m molybdenum soil anomaly occurs approximately 150 m to the south.
Comstock¿s exploration program concentrated on the western half of the adjoining Aztec claims. Several weak geochemical and geophysical anomalies were found however none were judged significant enough to warrant follow up work. The 1996 through 1998 work programs were carried out to follow up geophysical targets and delineate future drill targets. The bulk of the work was carried out on the adjacent Koffee and Ana claims.
No recent work appears to have been carried out in the vicinity of this occurrence.
References
EASTFIELD RESOURCES LTD, Dec/93. Assessment Report #093144 by J. Chapman and G. Garratt.
GLENLYON MINING LTD, Aug/70. Assessment Report #060219 by C.G. Carlson.
GEORGE CROSS NEWSLETTER, 22 Feb/93; 28 Feb/94; 17 Mar/97; 13 Aug/97.
GORDEY, S.P., AND MAKEPEACE, A.J., 1999. Yukon digital geology, S.P. Gordey and A.J. Makepeace (comp.); Geological Survey of Canada, Open File D3826, and Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open File 1999-1 (D)
GORDEY, S.P. AND MAKEPEACE, A.J. 2003: Yukon Digital Geology, version 2.0, S.P. Gordey and A.J. Makepeace (comp); Geological Survey of Canada, Open file 1749 and Yukon Geological Survey, Open file 2003-9 (D).
JOHNSTON, S.T. AND SHIVES, R.B.K., 1995. Interpretation of an airborne multiparameter geophysical survey of the Northern Dawson Range, central Yukon. A progress report. In Yukon Exploration and Geology, 1994. Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 105-111.
JOHNSTON, S.T., 1995. Geological compilation with interpretation from geophysical surveys of the northern Dawson Range, central Yukon. (115J/9 & 10; 115I/12) (1:100 00 scale map). Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open File 1995-2 (G).
MINERAL INDUSTRY REPORT 1969-70, p. 45-46.
SELBY, D. and NESBITT, B.E., 1998. Biotite chemistry of the Casino Porphyry Cu-Mo-Au Occurrence, Dawson Range, Yukon. In: Yukon Exploration and Geology 1997. Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 83-88.
SELBY, D. ET AL., 1999. Major and trace element compositions and Sr-Nd-Pb systematics of crystalline rocks from the Dawson Range, Yukon Canada. In: Canadian Journal of Earth Sciences, Volume 36, p. 1463-1481.
WILDROSE RESOURCES LTD ET AL., Feb/2001. Assessment Report #094169 by J.W. Morton.
WILDROSE RESOURCES LTD ET AL., Feb/2002. Assessment Report #094244 by J.W. Morton.
WILDROSE RESOURCES LTD, News Release, 19 Dec/2002; 1 Dec/2003.
WILDROSE RESOURCES LTD, Jan/99. Web Site: www.direct.ca/wildrose
YUKON EXPLORATION AND GEOLOGY 1993, p. 4, 6, 8; 1994 p. 10; 1996 p. 24, 30; 1997 p. 24, 35.
Staked as Gep cl 1-32 (Y35852) in Jul/69 by H. Fromme and optioned to Glenlyon Mining Ltd. Explored by grid soil sampling and mapping in 1970.
Restaked Sep/92 as Maya 1-40 cl (YB37592) by Renoble Holdings Inc. Renoble staked Aztec cl 1-52 (YB37540) to the east and Koffee cl 1-58 (YB37482) to the north at the same time. In Jan/93 Renoble staked Ice cl 1-74 (YB37901) to the northwest. In Mar/93, Renoble optioned all of its claim holdings in the area (Ice, Maya, Aztec and Koffee ) to Eastfield Resources Ltd, subject to a profit sharing agreement. Eastfield also optioned the adjoining Ana claims (located to the northeast) from Nordac Mining Corp at the same time.
In Feb/93 Eastfield optioned a 50% interest in the Aztec and Maya claims to Canadian Comstock Explorations Ltd in return for certain work commitments and option payments. During the 1993 field season Comstock carried out road building, geological mapping, rock and soil sampling and ground magnetic and IP geophysical surveys on the claims. Comstock¿s option was terminated in 1994.
In Jun/96 Eastfield consolidated the Maya and adjoining Aztec, Koffee, Ana, and Ice claim blocks into the Canadian Creek property. Following consolidation Eastfield entered into an option agreement with Alexis Resources Ltd whereby Alexis was granted the right to earn an undivided 51% interest in the property by incurring $ 1 500 000 in expenditures, paying $250 000 in option payments and issuing 200 000 shares before Jun/2000. In 1996 Alexis completed geophysical and geochemical surveys and extensive excavator trenching on the Koffee and Ana claims.
In May/97 Eastfield reorganized into two companies one of which is named Wildrose Resources Ltd. The Ana, Koffee, Maya, Aztec and Ice claims were transferred to Wildrose. In 1997 Wildrose and joint venture partner Alexis Resources conducted a program of road-building, drill-pad construction and prospecting on the Canadian Creek property.
In 1999 Wildrose carried out rock and soil sampling and road reclaimation on the Ana and Koffee claims. In May/2000 Wildrose optioned 55 adjoining claims (Casino ¿B¿ claims) from Great Basin Gold Ltd (the successor company of Pacific Sentinel Corporation) and assumed responsibility for filing assessment work on 83 additional claims (Casino ¿A¿ claims) that cover the neighboring Casino deposit. Later in the year Wildrose drilled 12 diamond drill holes (2 066 m) on the Casino ¿B¿, Ana and Koffe claims. In 2001 the company carried out an evaluation program on it entire Canadian Creek property. Although little work was completed near this occurrence, assessment credit from these programs was used to keep the Maya claims (including those surrounding this occurrence) in good standing.
In Dec/2002 Wildrose optioned a 60% participating interest in it¿s Canadian Creek property to Canley Developments Inc. The agreement includes the claims covering this occurrence.
Capsule Geology
The region around the occurrence largely escaped Pleistocene glaciation. The result is that there is less than 1% outcrop by area over much of the region and weathered rocks commonly extend to depths of greater than 75m. Johnston (1995) used data acquired from an airborne multiparameter geophysical survey conducted in 1993 and 1994 to improve the existing geological knowledge of the region.
Johnston¿s work indicates that the area is underlain by Yukon Tanana Terrane rocks, consisting of Devonian to Mississippian metavolcanic and metaigneous rocks belonging to the Wolverine Creek Metamorphic Suite. The metamorphic rocks form a synform which is cored by intermediate rocks of the Mid-Cretaceous Dawson Range Batholith. The batholith consists of mafic, intermediate and felsic phases. The mafic and intermediate phases are sheet or sill-like bodies that are concordant with foliation in the `pendant¿ and in adjacent metamorphic wall rocks. The felsic phase forms discordant plugs that intrude the more mafic phases of the batholith and its wall rocks.
The Dawson Range batholith is in turn intruded by the Casino Plutonic Suite which is represented by fine- to medium-grained leucocratic granite, quartz monzonite and alaskite with associated aplite phases. The Casino Plutonic Suite is composed of stocks up to 18 km in diameter and is only exposed in the Colorado Creek (NTS 115 J/9) and Selwyn River (NTS 115 J/10) map areas. The Casino Plutonic Suite was originally thought to be Late Cretaceous (70 Ma) but work by Selby et al., (1999) indicates that although the Casino Plutonic Suite intrudes the Dawson Range Batholith, it¿s age is indistinguishable (104.2 +/- 0.5 Ma, U-Pb zircon). Late Cretaceous igneous activity produced a northwest-trending belt of small stocks, one of which, the Patton porphyry intrudes the Casino Plutonic Suite rocks and producing the copper-gold-molybdenum mineralization present at the neighboring Casino deposit (Minfile Occurrence #115J 028).
The occurrence is underlain by Dawson Range batholith biotite-hornblende granodiorite, with roof pendants of Devonian-Mississippian metasedimentary rocks, intruded by a small Late Cretaceous stock of alaskite. The granodiorite contains disseminated pyrite and shows sericitization of feldspar in one locality. Soil sampling by Glenlyon outlined a 335 m long copper soil anomaly in the occurrence area. A small 150 m by 150 m molybdenum soil anomaly occurs approximately 150 m to the south.
Comstock¿s exploration program concentrated on the western half of the adjoining Aztec claims. Several weak geochemical and geophysical anomalies were found however none were judged significant enough to warrant follow up work. The 1996 through 1998 work programs were carried out to follow up geophysical targets and delineate future drill targets. The bulk of the work was carried out on the adjacent Koffee and Ana claims.
No recent work appears to have been carried out in the vicinity of this occurrence.
References
EASTFIELD RESOURCES LTD, Dec/93. Assessment Report #093144 by J. Chapman and G. Garratt.
GLENLYON MINING LTD, Aug/70. Assessment Report #060219 by C.G. Carlson.
GEORGE CROSS NEWSLETTER, 22 Feb/93; 28 Feb/94; 17 Mar/97; 13 Aug/97.
GORDEY, S.P., AND MAKEPEACE, A.J., 1999. Yukon digital geology, S.P. Gordey and A.J. Makepeace (comp.); Geological Survey of Canada, Open File D3826, and Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open File 1999-1 (D)
GORDEY, S.P. AND MAKEPEACE, A.J. 2003: Yukon Digital Geology, version 2.0, S.P. Gordey and A.J. Makepeace (comp); Geological Survey of Canada, Open file 1749 and Yukon Geological Survey, Open file 2003-9 (D).
JOHNSTON, S.T. AND SHIVES, R.B.K., 1995. Interpretation of an airborne multiparameter geophysical survey of the Northern Dawson Range, central Yukon. A progress report. In Yukon Exploration and Geology, 1994. Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 105-111.
JOHNSTON, S.T., 1995. Geological compilation with interpretation from geophysical surveys of the northern Dawson Range, central Yukon. (115J/9 & 10; 115I/12) (1:100 00 scale map). Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, Open File 1995-2 (G).
MINERAL INDUSTRY REPORT 1969-70, p. 45-46.
SELBY, D. and NESBITT, B.E., 1998. Biotite chemistry of the Casino Porphyry Cu-Mo-Au Occurrence, Dawson Range, Yukon. In: Yukon Exploration and Geology 1997. Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 83-88.
SELBY, D. ET AL., 1999. Major and trace element compositions and Sr-Nd-Pb systematics of crystalline rocks from the Dawson Range, Yukon Canada. In: Canadian Journal of Earth Sciences, Volume 36, p. 1463-1481.
WILDROSE RESOURCES LTD ET AL., Feb/2001. Assessment Report #094169 by J.W. Morton.
WILDROSE RESOURCES LTD ET AL., Feb/2002. Assessment Report #094244 by J.W. Morton.
WILDROSE RESOURCES LTD, News Release, 19 Dec/2002; 1 Dec/2003.
WILDROSE RESOURCES LTD, Jan/99. Web Site: www.direct.ca/wildrose
YUKON EXPLORATION AND GEOLOGY 1993, p. 4, 6, 8; 1994 p. 10; 1996 p. 24, 30; 1997 p. 24, 35.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1997 | Development, Surface: All Weather Road | Built roads and drill pads. |
| 1970 | Geochemistry: Soil | |
| 1970 | Geology: Bedrock Mapping |
Regional Geology - Terrane
Group: Intermontane
Affinity: W Laurentia
Name: Yukon-Tanana
Realm: peri-Laurentian
Regional Geology - Bedrock
Supergroup:
Group/Suite: Whitehorse
Formation: Dawson Range
Member:
Terrane:
Period Max: Cretaceous
Age Max: 107 MA
Period Min: Cretaceous
Age Min: 94 MA
Rock Major: tonalite
Rock Minor: granite
Reference: Ryan et al. (2013) - GSC CGM 117
Geological Unit (1M): mKW
Geological Unit (250K): mKgW
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 096177 | 2012 | Airborne Magnetic-Radiometric Survey Report on Grout, Quo Claim Groups at Doyle Creek area | Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics | ||
| 096084 | 2012 | Assessment Work Report-Airborne Magnetic-Radiometric Survey Report on Quo Claims Property | Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics | ||
| 095429 | 2010 | 2010 Assesment Work Report-An Airborn Magnetic-Radimetric Survey Report on Grout Claims | Gamma-Ray Spectrometry - Airborne Geophysics, Magnetic - Airborne Geophysics | ||
| 060219 | 1970 | Geological and Geochemical Report on the GEP 1-32 Mineral Claims-Dawson Range Area | Soil - Geochemistry, Bedrock Mapping - Geology, Line Cutting - Other, Prospecting - Other | ||
| 019098 | 1965 | Geophysical Report-Cat Claims-Casino Creek Area | Magnetic - Airborne Geophysics |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC016557 | Geology map - 115J/10 - Colorado Creek | Geoscience Map (Geological - Bedrock) | |
| ARMC016558 | Geochemical values total extraction map - 115J/10 - Colorado Creek | Geochemical Map |
| Citations |
|---|
