General Information
Secondary Commodities: arsenic, barite, copper, lead, silver, tungsten, zinc
Deposit Type(s): Skarn W
Location(s): 62°53'53" N - -134°41'10" W
NTS Mapsheet(s): 105L15
Location Comments: 1 Kilometres
Hand Samples Available: No
Last Reviewed:
Capsule
Work History
Originally staked as Ace cl 1-192 (YA52055), covering Dromedary Mountain, in Sep/80 by Anaconda Canada Exploration Ltd following regional silt sampling and airborne magnetometer and EM surveying. In Oct/80 Anaconda staked Ace cl 193-504 (YA52251) to surround the original claim block, extending it to the northwest and southeast and added Earn cl 1-2 (YA59031) at the same time, 18.5 km to the southeast at Earn Lake, probably to cover their camp location. Anaconda staked Ace cl 505-724 (YA59089) in Dec/80 to form a contiguous block of claims covering 27.5 km of strike length from Earn Lake to the west of Dromedary Mountain. The company added Earn cl 3-4 (YA59309) by the camp location at the same time in Dec/80.
Airborne magnetometer and EM surveying was carried out over an area approximately three times the size of the Ace claim group between February and Mar/81 prompting Anaconda to stake Clare cl 1-64 (YA59696) and Bush cl 1-32 (YA59895) contiguously to the west and north of the Ace claim group, respectively, in Apr/81. Anaconda established a line grid over the west central (including this occurrence) and the southeastern portions of the Ace claim group and carried out geochemical soil sampling, Max-Min EM surveying and detailed geological mapping of the gridded areas and regional scale geological mapping elsewhere in the claim block and drilled 10 holes (1 900 m) during the summer of 1981. Grid development followed by Max-Min EM and magnetometer surveying of the Bush claims was carried out in the spring of 1982.. During May to Oct/82, Anaconda carried out property wide grid geochemical soil sampling, geological mapping, geophysical surveying and staked Ace cl 719B-754 (YA74825), Clare cl 65B-76 (YA74841) and Bush cl 33-48 (YA74809 in Jul/82 contiguous with the existing claim block. In 1983 Anaconda carried out additional geological mapping, soil geochemical sampling and geophysical surveying within the claim group.
Anaconda's interest was transferred in 1985 to Fleck Minerals Inc, which optioned the property to Dromedary Exploration Company Ltd in Jun/88. Dromedary staked Nora cl 1-12 (YB26763) and Nora cl 13-34 (YB26775) contiguously to the north and south, respectively, in Sep/89 and drilled 2 holes (434 m) 7 km to the west on the Francois grid (Minfile Occurrence #105L 031) in 1990.
G. Carlson, a principal in Dromedary, took over the option from Fleck and in turn optioned the Ace and Nora claims to Energold Minerals Inc in 1993. Energold carried out auger sampling, magnetometer surveying and geological mapping between the existing grid lines and over this showing in Aug/93. In Sep/93, the Nora claims were transferred to Fleck Minerals Inc.
In 1995 G. Carlson acquired 100% interest in the Ace and Nora claims from Fleck Minerals. In Jun/96 Carlson optioned the property to Blackstone Resources Inc which drilled 4 holes (734.8 m) to test various coincident geophysical targets on the Francois grid. Blackstone staked King cl 1-16 (YB96649) 4 km to the southeast in Oct/96.
In Jun/97 Blackstone optioned the property to Geologix Exploration Inc which carried out prospecting, geological mapping and rock and soil geochemical sampling on the King claims. In Jul/97 Blackstone staked King cl 17-20 (YC07965) to cover fractions left during staking in 1996.
Capsule Geology
The claims are underlain by a southwest-dipping sequence of Proterozoic to Paleozoic-Triassic (?) strata cut by northwest-trending normal faults and intruded by Cretaceous andesitic sub-volcanic plugs and granodiorite-quartz monzonite intrusives. Stratabound lenses of massive pyrrhotite with sphalerite, chalcopyrite, pyrite and galena occur in cherty pyritic argillite of the Devonian to Mississippian Earn Group and their metamorphosed equivalent. The sulphide lenses are inferred to be submarine exhalites, probably related to Devonian rifting. Four areas of mineralization have been previously identified, and are labeled, from east to west Dromedary Creek, Dromedary Mountain, Francois Grid (Minfile Occurrence #105L 031) and Kal-Cave ( Minfile Occurrence #105L 054). All are situated on strike along 18 km of favorable stratigraphy.
Dromedary Creek hosts syngenetic sulphide mineralization consisting of laminated to massive pyrrhotite, pyrite, sphalerite, galena and minor arsenopyrite. Airborne geophysics and geological mapping carried out by Anaconda outlined numerous mineralized lenses, the largest which is a barren pyrrhotite lens about 800 m long and 50 m thick on the east slope of Dromedary Mountain. Drilling carried out in the Dromedary Creek area in 1981 outlined two distinct zones of syngenetic sulphide mineralization both of which returned low base metal values.
In 1996 Blackstone targeted a coincident gravity and magnetic anomaly located between 1981 drill holes 8 and 9. The hole (DCK96-01) intersected two zones of sulphide mineralization. The upper zone (104.3 to 115.3 m) consists of chert-sulphide-graphitic argillite and contains pyrite, pyrrhotite, trace sphalerite and chalcopyrite as laminations and folded sulphide layers. The lower zone (137.5 to 138.8 m) comprises a silicified argillite-sulphide unit containing approximately 40% combined pyrrhotite>pyrite mineralization. Only the lower zone contained anomalous Pb, Zn and Ag values. Examination of the core indicates that the sulphide mineralization in DCK96-01 occurs at a different stratigraphic level than that encountered in the 1981 drill holes. Best results came from the lower zone; 2340 ppm Zn over 1.3 m, 137.5 m down the hole.
Dromedary Mountain hosts bedded barite and skarn mineralization. Bedded barite was noted within the upper chert unit (Unit 13 Caufield and Webber, 1997) of the Earn Group. The Ace barite showing located on the northeast slope of Dromedary Mountain hosts one massive bed over 10 m thick within a 50 m thick unit. The barite outcrops over a strike length of 400 m, is finely crystalline, relatively pure (about 33 wt% Ba) but barren of sulphides.
Anaconda focused the bulk of their 1981 drilling towards testing various zones of skarn mineralization located in the Dromedary Mountain area. The skarn mineralization consists of pod-like masses of quartz and one of the following minerals: tremolite/actinolite, chlorite, magnetite, calcite, garnet, pyrrhotite, pyrite, sphalerite, galena and minor chalcopyrite. The skarn bodies are small, ranging up to one metre in thickness and several tens of metres in strike length. Contacts with unmineralized rock can be either sharp or gradational. Scheelite is present in the creeks draining to the south side of Dromedary Mountain but was not found in place. Information regarding individual drill holes is sketchy but the best drill intersection is reported to have returned 2% Zn, 0.5% Pb, 31.2 g/t Ag and 0.2% Cu over 1.05 m. Anaconda¿s best chip sample (location unknown) returned 7.2% Zn, 3.5% Pb, 58 g/t Ag and 0.5% Cu over 1.05 m. The economic potential of the skarn bodies is thought to be low due to their lack of continuity and low grade.
All of the 1997 work was carried out around Minfile Occurrences #105L 031 and #105L 054. The geophysical surveys provided important refinements of the interpretation of the coincident gravity, EM and magnetic anomalies, which were targeted by the 1996 drilling.
References
ANACONDA CANADA EXPLORATION LTD, Nov/81. Assessment Report #090888 by G.G. Carlson.
ANACONDA CANADA EXPLORATION LTD, May/82. Assessment Report #091039 by A.R. Scott.
ANACONDA CANADA EXPLORATION LTD, Jun/83. Assessment Report #091468 by R.D. Hall.
BLACKSTONE RESOURCES LTD, Mar/97. Assessment Report #093595 by D.A. Caulfield and J. Weber.
BLACKSTONE RESOURCES LTD, Feb/97. Assessment Report #093618 by D.A. Caulfield and J. Weber.
BLACKSTONE RESOURCES LTD, Jan/98. Assessment Report *#093764 by M.I. Jones.
BLACKSTONE RESOURCES LTD, News Release, 21 Jun/96, 21 Sep/96, 10 Jun/97, 14 Aug/97
BUTTERWORTH, B.P. and JONES, M., Geology and mineralization on the Dromedary property, central Yukon. In: Yukon Exploration and Geology 1997, Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 121-124.
DROMEDARY EXPLORATION CO. LTD, Nov/89. Prospectus Report by C.M. Rebagliati.
ENERGOLD MINERALS INC, Dec/93. Assessment Report #093148 by H. Sellmer and R. Zuran.
ENERGOLD MINERALS INC, Oct/93. Assessment Report #093157 by H. Sellmer.
GEORGE CROSS NEWSLETTER, 7 Nov/96, 1 Aug/97,
WHITEHORSE STAR, 14 Aug/90.
YUKON EXPLORATION 1990, p. 9, 11.
YUKON EXPLORATION AND GEOLOGY 1981, p. 160-163; 1982, p. 149; 1983, p. 196-197; 1996, p. 21-22, 32; 1997, p. 22, 35.
Originally staked as Ace cl 1-192 (YA52055), covering Dromedary Mountain, in Sep/80 by Anaconda Canada Exploration Ltd following regional silt sampling and airborne magnetometer and EM surveying. In Oct/80 Anaconda staked Ace cl 193-504 (YA52251) to surround the original claim block, extending it to the northwest and southeast and added Earn cl 1-2 (YA59031) at the same time, 18.5 km to the southeast at Earn Lake, probably to cover their camp location. Anaconda staked Ace cl 505-724 (YA59089) in Dec/80 to form a contiguous block of claims covering 27.5 km of strike length from Earn Lake to the west of Dromedary Mountain. The company added Earn cl 3-4 (YA59309) by the camp location at the same time in Dec/80.
Airborne magnetometer and EM surveying was carried out over an area approximately three times the size of the Ace claim group between February and Mar/81 prompting Anaconda to stake Clare cl 1-64 (YA59696) and Bush cl 1-32 (YA59895) contiguously to the west and north of the Ace claim group, respectively, in Apr/81. Anaconda established a line grid over the west central (including this occurrence) and the southeastern portions of the Ace claim group and carried out geochemical soil sampling, Max-Min EM surveying and detailed geological mapping of the gridded areas and regional scale geological mapping elsewhere in the claim block and drilled 10 holes (1 900 m) during the summer of 1981. Grid development followed by Max-Min EM and magnetometer surveying of the Bush claims was carried out in the spring of 1982.. During May to Oct/82, Anaconda carried out property wide grid geochemical soil sampling, geological mapping, geophysical surveying and staked Ace cl 719B-754 (YA74825), Clare cl 65B-76 (YA74841) and Bush cl 33-48 (YA74809 in Jul/82 contiguous with the existing claim block. In 1983 Anaconda carried out additional geological mapping, soil geochemical sampling and geophysical surveying within the claim group.
Anaconda's interest was transferred in 1985 to Fleck Minerals Inc, which optioned the property to Dromedary Exploration Company Ltd in Jun/88. Dromedary staked Nora cl 1-12 (YB26763) and Nora cl 13-34 (YB26775) contiguously to the north and south, respectively, in Sep/89 and drilled 2 holes (434 m) 7 km to the west on the Francois grid (Minfile Occurrence #105L 031) in 1990.
G. Carlson, a principal in Dromedary, took over the option from Fleck and in turn optioned the Ace and Nora claims to Energold Minerals Inc in 1993. Energold carried out auger sampling, magnetometer surveying and geological mapping between the existing grid lines and over this showing in Aug/93. In Sep/93, the Nora claims were transferred to Fleck Minerals Inc.
In 1995 G. Carlson acquired 100% interest in the Ace and Nora claims from Fleck Minerals. In Jun/96 Carlson optioned the property to Blackstone Resources Inc which drilled 4 holes (734.8 m) to test various coincident geophysical targets on the Francois grid. Blackstone staked King cl 1-16 (YB96649) 4 km to the southeast in Oct/96.
In Jun/97 Blackstone optioned the property to Geologix Exploration Inc which carried out prospecting, geological mapping and rock and soil geochemical sampling on the King claims. In Jul/97 Blackstone staked King cl 17-20 (YC07965) to cover fractions left during staking in 1996.
Capsule Geology
The claims are underlain by a southwest-dipping sequence of Proterozoic to Paleozoic-Triassic (?) strata cut by northwest-trending normal faults and intruded by Cretaceous andesitic sub-volcanic plugs and granodiorite-quartz monzonite intrusives. Stratabound lenses of massive pyrrhotite with sphalerite, chalcopyrite, pyrite and galena occur in cherty pyritic argillite of the Devonian to Mississippian Earn Group and their metamorphosed equivalent. The sulphide lenses are inferred to be submarine exhalites, probably related to Devonian rifting. Four areas of mineralization have been previously identified, and are labeled, from east to west Dromedary Creek, Dromedary Mountain, Francois Grid (Minfile Occurrence #105L 031) and Kal-Cave ( Minfile Occurrence #105L 054). All are situated on strike along 18 km of favorable stratigraphy.
Dromedary Creek hosts syngenetic sulphide mineralization consisting of laminated to massive pyrrhotite, pyrite, sphalerite, galena and minor arsenopyrite. Airborne geophysics and geological mapping carried out by Anaconda outlined numerous mineralized lenses, the largest which is a barren pyrrhotite lens about 800 m long and 50 m thick on the east slope of Dromedary Mountain. Drilling carried out in the Dromedary Creek area in 1981 outlined two distinct zones of syngenetic sulphide mineralization both of which returned low base metal values.
In 1996 Blackstone targeted a coincident gravity and magnetic anomaly located between 1981 drill holes 8 and 9. The hole (DCK96-01) intersected two zones of sulphide mineralization. The upper zone (104.3 to 115.3 m) consists of chert-sulphide-graphitic argillite and contains pyrite, pyrrhotite, trace sphalerite and chalcopyrite as laminations and folded sulphide layers. The lower zone (137.5 to 138.8 m) comprises a silicified argillite-sulphide unit containing approximately 40% combined pyrrhotite>pyrite mineralization. Only the lower zone contained anomalous Pb, Zn and Ag values. Examination of the core indicates that the sulphide mineralization in DCK96-01 occurs at a different stratigraphic level than that encountered in the 1981 drill holes. Best results came from the lower zone; 2340 ppm Zn over 1.3 m, 137.5 m down the hole.
Dromedary Mountain hosts bedded barite and skarn mineralization. Bedded barite was noted within the upper chert unit (Unit 13 Caufield and Webber, 1997) of the Earn Group. The Ace barite showing located on the northeast slope of Dromedary Mountain hosts one massive bed over 10 m thick within a 50 m thick unit. The barite outcrops over a strike length of 400 m, is finely crystalline, relatively pure (about 33 wt% Ba) but barren of sulphides.
Anaconda focused the bulk of their 1981 drilling towards testing various zones of skarn mineralization located in the Dromedary Mountain area. The skarn mineralization consists of pod-like masses of quartz and one of the following minerals: tremolite/actinolite, chlorite, magnetite, calcite, garnet, pyrrhotite, pyrite, sphalerite, galena and minor chalcopyrite. The skarn bodies are small, ranging up to one metre in thickness and several tens of metres in strike length. Contacts with unmineralized rock can be either sharp or gradational. Scheelite is present in the creeks draining to the south side of Dromedary Mountain but was not found in place. Information regarding individual drill holes is sketchy but the best drill intersection is reported to have returned 2% Zn, 0.5% Pb, 31.2 g/t Ag and 0.2% Cu over 1.05 m. Anaconda¿s best chip sample (location unknown) returned 7.2% Zn, 3.5% Pb, 58 g/t Ag and 0.5% Cu over 1.05 m. The economic potential of the skarn bodies is thought to be low due to their lack of continuity and low grade.
All of the 1997 work was carried out around Minfile Occurrences #105L 031 and #105L 054. The geophysical surveys provided important refinements of the interpretation of the coincident gravity, EM and magnetic anomalies, which were targeted by the 1996 drilling.
References
ANACONDA CANADA EXPLORATION LTD, Nov/81. Assessment Report #090888 by G.G. Carlson.
ANACONDA CANADA EXPLORATION LTD, May/82. Assessment Report #091039 by A.R. Scott.
ANACONDA CANADA EXPLORATION LTD, Jun/83. Assessment Report #091468 by R.D. Hall.
BLACKSTONE RESOURCES LTD, Mar/97. Assessment Report #093595 by D.A. Caulfield and J. Weber.
BLACKSTONE RESOURCES LTD, Feb/97. Assessment Report #093618 by D.A. Caulfield and J. Weber.
BLACKSTONE RESOURCES LTD, Jan/98. Assessment Report *#093764 by M.I. Jones.
BLACKSTONE RESOURCES LTD, News Release, 21 Jun/96, 21 Sep/96, 10 Jun/97, 14 Aug/97
BUTTERWORTH, B.P. and JONES, M., Geology and mineralization on the Dromedary property, central Yukon. In: Yukon Exploration and Geology 1997, Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 121-124.
DROMEDARY EXPLORATION CO. LTD, Nov/89. Prospectus Report by C.M. Rebagliati.
ENERGOLD MINERALS INC, Dec/93. Assessment Report #093148 by H. Sellmer and R. Zuran.
ENERGOLD MINERALS INC, Oct/93. Assessment Report #093157 by H. Sellmer.
GEORGE CROSS NEWSLETTER, 7 Nov/96, 1 Aug/97,
WHITEHORSE STAR, 14 Aug/90.
YUKON EXPLORATION 1990, p. 9, 11.
YUKON EXPLORATION AND GEOLOGY 1981, p. 160-163; 1982, p. 149; 1983, p. 196-197; 1996, p. 21-22, 32; 1997, p. 22, 35.
Work History
Date | Work Type | Comment |
---|---|---|
12/31/1997 | Ground Geophysics | Also magnetic survey. |
12/31/1997 | Geology | |
12/31/1997 | Other | |
12/31/1997 | Trenching | |
12/31/1996 | Drilling | Five holes, 939 m. Only 1 hole drilled on this occurrence. |
12/31/1990 | Drilling | Two holes, 434 m. |
12/31/1982 | Geology | |
12/31/1982 | Geochemistry | |
12/31/1982 | Ground Geophysics | Max-Min survey. Also magnetic survey. |
12/31/1981 | Drilling | Ten holes, 1,900 m. |
12/31/1981 | Geology | |
12/31/1981 | Geochemistry | |
12/31/1981 | Ground Geophysics | Max-Min survey. |
12/31/1980 | Geochemistry | |
12/31/1980 | Airborne Geophysics | Also magnetic survey. |
12/13/1997 | Geochemistry | Also soil sampling. |
12/13/1993 | Geology | |
12/13/1993 | Geochemistry | Used auger to collect samples. |
12/13/1993 | Ground Geophysics | |
12/13/1993 | Geology | |
12/13/1983 | Geochemistry | |
12/13/1983 | Ground Geophysics | Also HLEM and gravity surveys. |
Assessment Reports that overlap occurrence
Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
---|---|---|---|---|---|
096377 | 2012 | Exploration, Geology, and Geochemistry of the La Liga Project | Rock - Geochemistry, Soil - Geochemistry, Prospecting - Other | ||
091468 | 1982 | Geological, Geochemical, and Geophysical Report Ace, Bush, and Clare Claims | Soil - Geochemistry, Regional Bedrock Mapping - Geology, EM - Ground Geophysics, Gravity Survey - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other | ||
090888 | 1981 | Assessment Work Report Geological, Geophysical and Geochemical Investigation of the Ace 1 to 724 and Earn 1 to 4 Claim Group | Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Line Cutting - Other, Prospecting - Other, Mechanical - Trenching |
Related References
Number | Title | Page(s) | Reference Type | Document Type |
---|---|---|---|---|
ARMC003339 | News clipping - Drilling intersects - Dromedary property | Property File Collection | News Release | |
ARMC003343 | Drill hole location and geophysical compilation map - Dromedary property | Property File Collection | Geophysical Map | |
ARMC005809 | Property update report - Dromedary Mountain | Property File Collection | Report | |
ARMC005810 | Summary report - Dromedary Mountain exploration project | Property File Collection | Report | |
ARMC005811 | Report - Dromedary project | Property File Collection | Report | |
ARMC005812 | Project proposal - Dromedary property - Ace claims | Property File Collection | Report |