General Information
Secondary Commodities: copper, lead, zinc, silver, nickel
Deposit Type(s): Volcanogenic Massive Sulphide (VMS) Besshi Cu-Zn
Location(s): 61.430560 N, -130.62 W
NTS Mapsheet(s): 105G07
Location Comments: .5 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as RBI cl 1-46 (YB56316) in Oct/94 by D. Brett. In Jun/95 Brett transferred the RBI claims to A. Harmon who in turn optioned the claims to Demand Gold Ltd which carried out HLEM/magnetic geophysical surveys and a preliminary soil sampling program later in the year. In 1996 the company continued exploring the claims with geological mapping, geochemical and geophysical programs and in 1997 drilled 2 diamond drill holes (479.87 m) to test EM conductors associated with a weak magnetic anomaly and a strongly anomalous soil anomaly.
Capsule Geology
Geological mapping (Murphy et al. 2001) shows the area is dominantly underlain by a layered sequence of Devonian to Early Mississippian metavolcanic and metasedimentary rocks belonging to the Yukon-Tanana Terrane (YTT). The YTT is a volcanic-plutonic pericratonic arc assemblage that was strongly deformed and metamorphosed by Late Triassic time.
The area is underlain by layered biotite-plagioclase-actinolite-chlorite schist and lesser carbonaceous phyllite, quartzite and grey marble belonging to the Devonian to Early Mississippian Fire Lake mafic metavolcanic unit (unit DF). To the north unit DF is overlain by mainly felsic volcanic and metasedimentary rocks assigned to the Mississippian Grass Lakes Succession. This sequence is intruded by Mississippian age metaplutonic rocks (unit MGg) of the Grass Lakes Plutonic Suite.
Geological mapping completed by Demand Gold generally matches Murphy and Piercey's mapping of 1999. It shows that the southern half of the RBI claim block is covered by Quaternary unconsolidated sediments while the northern half is underlain by unit DF which has been intruded by metaplutonic rocks (unit MGg). The company noted felsic volcanics (probably unit DK) near the north-central claim boundary.
Ground geophysics outlined 3 distinct NE-SW trending HLEM conductors which were interpreted as fault zones. In places the conductors display weak magnetic association. Follow-up soil sampling returned strongly anomalous Cu, Zn and Pb values over the conductors (Mark, 1995; Wesa, 1997). The diamond drilling program was designed to test the combination of favourable stratigraphy, HLEM conductors, soil anomalies and fault structures. The first hole was collared in the mafic volcanics (unit DF) and intersected metasedimentary rocks and narrow bands of mafic metavolcanic rocks overlying metaplutonic rocks. The second hole was collared in the metaplutonic rocks and intersected metaplutonic rocks interbedded with thick mafic schist horizons. Both holes intersected abundant fault structures, which explained the HLEM anomalies. Neither hole intersected any sulphide mineralization of interest.
References
BOND, J.D., MURPHY, D.C., COLPRON, M., GORDEY, S.P., PLOUFFE, A., ROOTS, C.F., LIPOVSKY, P.S., STRONGHILL, G., AND ABBOTT, J.G., 2002. Digital compilation of bedrock geology and till geochemistry, northern Finlayson Lake map area, Southeastern Yukon (105G), Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Open File Report, 2002-7(D) and Geological Survey of Canada Open File 4243.
DEMAND GOLD LTD, Apr/96. Assessment Report #093431 by D.G. Mark.
DEMAND GOLD LTD. May/98. Assessment Report #093798 by G. Wesa.
GEORGE CROSS NEWSLETTER, 16 Oct/95, 30 Nov/95, 8 Mar/96, 20 Mar/96, 12 Sep/96, 7 Aug/97.
HUNT, J.A., 1997. Massive Sulphide deposits in the Yukon-Tanana and adjacent Terranes. In: Yukon Exploration and Geology 1996, Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p.33-45.
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.
MURPHY, D.C., COLPRON, M., GORDEY, S.P., ROOTS, C.F., ABBOTT, G., AND LIPOVSKY, P.S., 2001. Preliminary bedrock geological map of northern Finlayson Lake area (NTS 105 G) Yukon Territory (1:100 000 scale). Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Open File 2001-33.
MURPHY, D.C., COLPRON, M., ROOTS, C.F., GORDEY, S.P. AND ABBOTT, J.G., 2002. Finlayson Lake Targeted Geoscience Initiative (southeastern Yukon) , Part 1: Bedrock geology. In: Yukon Exploration and Geology 2001, D.S. Emond, L.H. Weston and L.L. Lewis (eds.), Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, p. 189-207.
YUKON EXPLORATION AND GEOLOGY 1996, p. 18, 3. 1997, p. 17, 37-38.
Staked as RBI cl 1-46 (YB56316) in Oct/94 by D. Brett. In Jun/95 Brett transferred the RBI claims to A. Harmon who in turn optioned the claims to Demand Gold Ltd which carried out HLEM/magnetic geophysical surveys and a preliminary soil sampling program later in the year. In 1996 the company continued exploring the claims with geological mapping, geochemical and geophysical programs and in 1997 drilled 2 diamond drill holes (479.87 m) to test EM conductors associated with a weak magnetic anomaly and a strongly anomalous soil anomaly.
Capsule Geology
Geological mapping (Murphy et al. 2001) shows the area is dominantly underlain by a layered sequence of Devonian to Early Mississippian metavolcanic and metasedimentary rocks belonging to the Yukon-Tanana Terrane (YTT). The YTT is a volcanic-plutonic pericratonic arc assemblage that was strongly deformed and metamorphosed by Late Triassic time.
The area is underlain by layered biotite-plagioclase-actinolite-chlorite schist and lesser carbonaceous phyllite, quartzite and grey marble belonging to the Devonian to Early Mississippian Fire Lake mafic metavolcanic unit (unit DF). To the north unit DF is overlain by mainly felsic volcanic and metasedimentary rocks assigned to the Mississippian Grass Lakes Succession. This sequence is intruded by Mississippian age metaplutonic rocks (unit MGg) of the Grass Lakes Plutonic Suite.
Geological mapping completed by Demand Gold generally matches Murphy and Piercey's mapping of 1999. It shows that the southern half of the RBI claim block is covered by Quaternary unconsolidated sediments while the northern half is underlain by unit DF which has been intruded by metaplutonic rocks (unit MGg). The company noted felsic volcanics (probably unit DK) near the north-central claim boundary.
Ground geophysics outlined 3 distinct NE-SW trending HLEM conductors which were interpreted as fault zones. In places the conductors display weak magnetic association. Follow-up soil sampling returned strongly anomalous Cu, Zn and Pb values over the conductors (Mark, 1995; Wesa, 1997). The diamond drilling program was designed to test the combination of favourable stratigraphy, HLEM conductors, soil anomalies and fault structures. The first hole was collared in the mafic volcanics (unit DF) and intersected metasedimentary rocks and narrow bands of mafic metavolcanic rocks overlying metaplutonic rocks. The second hole was collared in the metaplutonic rocks and intersected metaplutonic rocks interbedded with thick mafic schist horizons. Both holes intersected abundant fault structures, which explained the HLEM anomalies. Neither hole intersected any sulphide mineralization of interest.
References
BOND, J.D., MURPHY, D.C., COLPRON, M., GORDEY, S.P., PLOUFFE, A., ROOTS, C.F., LIPOVSKY, P.S., STRONGHILL, G., AND ABBOTT, J.G., 2002. Digital compilation of bedrock geology and till geochemistry, northern Finlayson Lake map area, Southeastern Yukon (105G), Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Open File Report, 2002-7(D) and Geological Survey of Canada Open File 4243.
DEMAND GOLD LTD, Apr/96. Assessment Report #093431 by D.G. Mark.
DEMAND GOLD LTD. May/98. Assessment Report #093798 by G. Wesa.
GEORGE CROSS NEWSLETTER, 16 Oct/95, 30 Nov/95, 8 Mar/96, 20 Mar/96, 12 Sep/96, 7 Aug/97.
HUNT, J.A., 1997. Massive Sulphide deposits in the Yukon-Tanana and adjacent Terranes. In: Yukon Exploration and Geology 1996, Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p.33-45.
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.
MURPHY, D.C., COLPRON, M., GORDEY, S.P., ROOTS, C.F., ABBOTT, G., AND LIPOVSKY, P.S., 2001. Preliminary bedrock geological map of northern Finlayson Lake area (NTS 105 G) Yukon Territory (1:100 000 scale). Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, Open File 2001-33.
MURPHY, D.C., COLPRON, M., ROOTS, C.F., GORDEY, S.P. AND ABBOTT, J.G., 2002. Finlayson Lake Targeted Geoscience Initiative (southeastern Yukon) , Part 1: Bedrock geology. In: Yukon Exploration and Geology 2001, D.S. Emond, L.H. Weston and L.L. Lewis (eds.), Exploration and Geological Services Division, Yukon Region, Indian and Northern Affairs Canada, p. 189-207.
YUKON EXPLORATION AND GEOLOGY 1996, p. 18, 3. 1997, p. 17, 37-38.
Location Map
Last Updated: Jul 30, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 1997 | Drilling: Diamond | Two holes, 480 m. |
| 1997 | Geology: Detailed Bedrock Mapping | |
| 1996 | Geology: Bedrock Mapping | |
| 1996 | Ground Geophysics: EM | Also magnetic survey. |
| 1996 | Other | |
| 1995 | Geochemistry: Soil | |
| 1995 | Ground Geophysics: Magnetics | Also HLEM survey. |
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:
Terrane: Yukon-Tanana
Period Max: Devonian
Age Max: 365 MA
Period Min: Devonian
Age Min: 357 MA
Rock Major: fp-ms-qtz schist
Rock Minor:
Reference: Murphy et al. (2001) - YGS OF 2001-33
Geological Unit (1M): DMF
Geological Unit (250K): DMF2
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 097150 | 2017 | 2017 Geological, Geochemical, Geophysical, Diamond Drilling and Geotechnical Report o the Kudz Ze Kayah (KZK) Property | Diamond - Drilling, Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics | 48 | 4928.70 |
| 096898 | 2015 | 2015 Geological, Geophysical, Diamond Drilling and Environmental Report on the Kudz Ze Kayah Property | Electromagnetic - Airborne Geophysics, Magnetic - Airborne Geophysics, Diamond - Drilling, Historical Drill Core - Geochemistry, Downhole Survey - Ground Geophysics, Gravity Survey - Ground Geophysics, Surveying - Other, Data Compilation - Pre-existing Data, Process/Interpret - Pre-existing Data, LIDAR - Remote Sensing | 99 | 21279.70 |
| 094659 | 2005 | Assessment Report Describing Prospecting on the TGI Property | Rock - Geochemistry, Silt - Geochemistry, Soil - Geochemistry, Prospecting - Other | ||
| 093798 | 1997 | Geological and Diamond Drilling Report on the RBI Property RBI 1-46 Claims | Diamond - Drilling, Bedrock Mapping - Geology, Data Compilation - Pre-existing Data | 2 | 479.87 |
| 093712 | 1996 | 1996 Assessment Report Kudz Ze Kayah Property Linecutting, Soil Geochemistry, Geological Mapping, Geophysical Surveying and Diamond Drilling | Diamond - Drilling, Regional Bedrock Mapping - Geology, EM - Ground Geophysics, Gravity Survey - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other, Prospecting - Other | 1 | 99.20 |
| 093431 | 1995 | Geophysical/Geochemical Report on Horizontal Loop Electromagnetic and Soil Geochemistry Surveys over the RBI Claims | Soil - Geochemistry, EM - Ground Geophysics, Magnetics - Ground Geophysics |
