General Information
Secondary Commodities: copper, gold, lead, silver, zinc
Deposit Type(s): Vein Polymetallic Ag-Pb-Zn+/-Au
Location(s): 61.636670 N, -132.697780 W
NTS Mapsheet(s): 105F10
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
* Some reports mix-up the location for this occurrence with Regional Resources and Fairfield Minerals Ltd, Leaper showing located approximately 2 km to the south east.
Staked by W. DesRosiers as Tyro cl (70866) in Aug/55, transferred to H. Gordon-Copper and E.H. Nielsen and rumoured to have been optioned to Conwest Exploration Ltd in 1956. The adjoining Zeep cl (71365) were staked in Sep/55 by D.J. Kidd on behalf of MacLeod-Cockshutt Gold Mines Ltd. Gordon-Copper added the TRI cl (74273) in Jul/59.
Restaked as White cl (88685) in Jun/64 by H. Versluce and later as Tyro cl (Y27960) in Aug/68 by H. Gordon-Copper and optioned by Canol Mines Ltd, which trenched and mapped in 1969.
P. Versluce staked the Rex cl (YA11031) 2.5 km due to east in Sep/76.
Noranda Exploration Company Ltd staked GMJ cl 1-26 (YA575) 2 km to the southeast in Aug/76. The company restaked the GMJ claims as Sequoia cl 1-8 (YA28189) and Taku cl 45-52 (YA34860) in Nov/77. Noranda carried out geological mapping and preliminary soil sampling in 1978 and detailed soil sampling in 1979.
Restaked as Jim cl 1-6 (YA72170) in Oct/84 by T. Bartsch.
The occurrence lies within an area presently withdrawn from staking due to land claims negoiations.
Capsule Geology
The occurrence ia located southwest of the Tintina Fault in the Ketza-Seagull district of the Cassiar Terrane (Platform). The Ketza-Seagull district is underlain by thick (400 m or greater) successions of miogeoclinal clastic, volcanic and carbonate rocks, ranging in age from Upper Proterozoic to Mississippian that were deformed during Mesozoic arc-continental collision, and by mid-Cretaceous intrusions. A series of thrust faults combined with crustal shortning associated with the Seagull Uplift has resulted in older rocks being thrust overtop younger rocks. The Seagull Uplift is thought to be related to uplift above one or more buried Cretaceous intrusions. The Seagull Creek area is known to host at least 19 occurrences consisting of veins, skarns, breccia pipes, disseminated pyrite gossans, stockworks and replacement mantos in volcanics, sediments and carbonates associated with Mississippian age syenite bodies.
Narrow quartz, carbonate, +/- pyrite veins up to 30 cm across cut a small syenite body which intrudes felsic tuff of Mississippian age. The veins contain stringers of pyrite, arsenopyrite and minor chalcopyrite, sphalerite and galena and are located in small faults. A chip sample assayed 3% Zn, 0.2% Pb, 0.1% Cu, 3.4 g/t Ag and trace Au. Tetrahedrite float was rumoured to have been found nearby in 1955.
Regional Resources Ltd identified the occurrence in their 1985 assessment report on the adjoining Ram claims (see Minfile Occurrence #105F 023). Prospecting carried out by Regional Resources Ltd in 1987 on the Ram claims identified the Leaper showing (located approximately 2 km to the southeast); described as a number of discontinuios iron carbonate-quartz-galena veins cutting syenite. The veins vary in width from 2.5 cm to 30 cm and contain from 10 to 50% galena. The best grab sample from these vein returned 72.98 % lead, 310.6 g/t silver and approximately 0.07 g/t gold. The remaining samples returned much lower values.
Noranda¿s soil sampling identified a strong lead-zinc anomaly down slope from the Leaper showing but there is no record of the company ever verifying its source.
References
ABBOTT, J.G., 1986. Epigenetic deposits of the Ketza-Seagull district, Yukon. In: Yukon Geology Vol. 1, Exploration and Geological Services, DIAND, p. 56-66.
CANOL MINES LTD, Nov/69. Assessment Report #061527 by D.D. Campbell, p. 19.
FAIRFIELD MINERALS LTD, Sept/87. Assessment Report #092096 by J.J. Hylands.
MINERAL INDUSTRY REPORT, 1978, p. 63.
NORANDA EXPLORATION CO. LTD, Nov/78 and Dec/79. Assessment Report #090416 by G. MacDonald.
NORANDA EXPLORATION COMPANY LTD, 1980. Assessment Report *#090576 by G. Macdonald.
REGIONAL RESOURCES LTD, Jan/86. Assessment Report #091768 by M.A. Stammers.
YUKON EXPLORATION 1984, p. 90.
* Some reports mix-up the location for this occurrence with Regional Resources and Fairfield Minerals Ltd, Leaper showing located approximately 2 km to the south east.
Staked by W. DesRosiers as Tyro cl (70866) in Aug/55, transferred to H. Gordon-Copper and E.H. Nielsen and rumoured to have been optioned to Conwest Exploration Ltd in 1956. The adjoining Zeep cl (71365) were staked in Sep/55 by D.J. Kidd on behalf of MacLeod-Cockshutt Gold Mines Ltd. Gordon-Copper added the TRI cl (74273) in Jul/59.
Restaked as White cl (88685) in Jun/64 by H. Versluce and later as Tyro cl (Y27960) in Aug/68 by H. Gordon-Copper and optioned by Canol Mines Ltd, which trenched and mapped in 1969.
P. Versluce staked the Rex cl (YA11031) 2.5 km due to east in Sep/76.
Noranda Exploration Company Ltd staked GMJ cl 1-26 (YA575) 2 km to the southeast in Aug/76. The company restaked the GMJ claims as Sequoia cl 1-8 (YA28189) and Taku cl 45-52 (YA34860) in Nov/77. Noranda carried out geological mapping and preliminary soil sampling in 1978 and detailed soil sampling in 1979.
Restaked as Jim cl 1-6 (YA72170) in Oct/84 by T. Bartsch.
The occurrence lies within an area presently withdrawn from staking due to land claims negoiations.
Capsule Geology
The occurrence ia located southwest of the Tintina Fault in the Ketza-Seagull district of the Cassiar Terrane (Platform). The Ketza-Seagull district is underlain by thick (400 m or greater) successions of miogeoclinal clastic, volcanic and carbonate rocks, ranging in age from Upper Proterozoic to Mississippian that were deformed during Mesozoic arc-continental collision, and by mid-Cretaceous intrusions. A series of thrust faults combined with crustal shortning associated with the Seagull Uplift has resulted in older rocks being thrust overtop younger rocks. The Seagull Uplift is thought to be related to uplift above one or more buried Cretaceous intrusions. The Seagull Creek area is known to host at least 19 occurrences consisting of veins, skarns, breccia pipes, disseminated pyrite gossans, stockworks and replacement mantos in volcanics, sediments and carbonates associated with Mississippian age syenite bodies.
Narrow quartz, carbonate, +/- pyrite veins up to 30 cm across cut a small syenite body which intrudes felsic tuff of Mississippian age. The veins contain stringers of pyrite, arsenopyrite and minor chalcopyrite, sphalerite and galena and are located in small faults. A chip sample assayed 3% Zn, 0.2% Pb, 0.1% Cu, 3.4 g/t Ag and trace Au. Tetrahedrite float was rumoured to have been found nearby in 1955.
Regional Resources Ltd identified the occurrence in their 1985 assessment report on the adjoining Ram claims (see Minfile Occurrence #105F 023). Prospecting carried out by Regional Resources Ltd in 1987 on the Ram claims identified the Leaper showing (located approximately 2 km to the southeast); described as a number of discontinuios iron carbonate-quartz-galena veins cutting syenite. The veins vary in width from 2.5 cm to 30 cm and contain from 10 to 50% galena. The best grab sample from these vein returned 72.98 % lead, 310.6 g/t silver and approximately 0.07 g/t gold. The remaining samples returned much lower values.
Noranda¿s soil sampling identified a strong lead-zinc anomaly down slope from the Leaper showing but there is no record of the company ever verifying its source.
References
ABBOTT, J.G., 1986. Epigenetic deposits of the Ketza-Seagull district, Yukon. In: Yukon Geology Vol. 1, Exploration and Geological Services, DIAND, p. 56-66.
CANOL MINES LTD, Nov/69. Assessment Report #061527 by D.D. Campbell, p. 19.
FAIRFIELD MINERALS LTD, Sept/87. Assessment Report #092096 by J.J. Hylands.
MINERAL INDUSTRY REPORT, 1978, p. 63.
NORANDA EXPLORATION CO. LTD, Nov/78 and Dec/79. Assessment Report #090416 by G. MacDonald.
NORANDA EXPLORATION COMPANY LTD, 1980. Assessment Report *#090576 by G. Macdonald.
REGIONAL RESOURCES LTD, Jan/86. Assessment Report #091768 by M.A. Stammers.
YUKON EXPLORATION 1984, p. 90.
Location Map
Last Updated: Sep 15, 2011
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1979 | Geochemistry: Soil | |
| 1978 | Geochemistry: Soil | |
| 1978 | Geology: Bedrock Mapping | |
| 1969 | Other | |
| 1969 | Trenching |
Regional Geology - Terrane
Group: Ancestral North America
Affinity: W Laurentia
Name: Cassiar
Realm: Laurentia
Regional Geology - Bedrock
Supergroup:
Group/Suite: Earn
Formation:
Member:
Terrane: Cassiar
Period Max: Carboniferous
Age Max: 359 MA
Period Min: Carboniferous
Age Min: 345 MA
Rock Major: trachyte/andesite/flows/tuffs/dykes
Rock Minor: slate/limestone
Reference: Tempelman-Kluit (1977) - GSC OF 486
Geological Unit (1M): DMEC
Geological Unit (250K): DMEC3
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 092096 | 1987 | Geological, Geochemical & Geophysical Report on the Ram 1-178 & Mat 1-12 Mineral Claims | Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, IP - Ground Geophysics, Magnetics - Ground Geophysics |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC014253 | Sketch map of Tyro claim group - Seagull Lake, Y.T. | Geoscience Map (General) | |
| ARMC020392 | Geology map - 105F/10 - Hand drawn markings - Pelly Mountain area | Geoscience Map (General) |
| Citations |
|---|
