General Information
Secondary Commodities: zinc, copper
Deposit Type(s): Unknown
Location(s): 61.270830 N, -130.702780 W
NTS Mapsheet(s): 105G07
Location Comments: 1 Kilometres
Hand Samples Available at YGS: No
Capsule
Work History
Staked as Tak cl 1-72 (Y7782) in May/66 following an airborne mag/EM survey by Atlas Explorations Ltd. The company carried out prospecting and geochemical sampling later in the summer and staked Tak cl 73-78 (Y13676) in Aug/66.
Restaked as Tor cl 1-57 (YB50233) in Jul/94 by Cominco Ltd to cover airborne geophysical targets identified during a Cominco survey conducted in early 1994. In 1994, Cominco completed 7.2 km of line cutting, 5.3 km of HLEM and total field magnetic surveys, geological mapping, prospecting and soil sampling on the claim block.
In May/96 Consolidated Shoshoni Gold Inc staked Ball cl 1-56 (YB83934) on the northern boundary of the Tor claim group. The company carried out soil sampling and a Beep Mat electromagnetic survey in Sep/96 and airborne geophysical survey in May/97.
Restaked within Meg cl 1-122 (YB93395) in Sep/2001 by True North Gems Inc which carried out a reconnaissance soil sampling and prospecting program in 2002. In Dec/2002 True North Gems optioned a 60% interest in the Meg and 3 other claim blocks to Firestone Ventures Inc. Firestone carried out geological mapping, prospecting, silt and soil sampling and pan sampling in 2003. In a news release dated 11 Aug/2005, Firestone reported that it had dropped its option on this and other Finlayson area properties which then reverted to True North Gems.
Capsule Geology
The area is located in the footwall of the Money Creek thrust in the southern portion of the Finlayson Lake massive sulfide district. The area is underlain by metavolcanic and metasedimentary rocks assigned by Murphy et al., (2002) to the Upper Devonian to Lower Mississippian (?) Grass Lakes succession.
The occurrence is underlain by Upper Devonian and Older (?) grit, psammite schist, metapelitic schist and isolated intervals of marble and calcareous schist (units Dq, Dqm). These units are overlain by the Upper Devonian Fire Lake metavolcanic unit (unit DF) that is composed mainly of chloritic phyllite, but also including carbonaceous phyllite and rare muscovite-quartz phyllite of probable felsic meta-volcanic protolith. The Fyre Lake massive sulphide deposit (Minfile Occurrence #105G 034) is hosted in chloritic phyllite of the Fire Lake unit. Mafic and ultramafic meta-plutonic rocks (units Dum and DMi) intrude to the east. These rocks are spatially associated with the Fire Lake unit and are inferred by Murphy and Piercey (2000) to be comagmatic sills and dykes. The Fire Lake unit is overlain by carbonaceous phyllite and quartzite (unit DKcp) assigned to the Kudz Ze Kayah unit. Approximately 3 km north of the occurrence, Murphy mapped a single isolated exposure of felsic meta-volcanic rocks assigned to the Kudz Ze Kayah felsic metavolcanic unit (unit DK).
Atlas¿s geophysical surveys outlined 1 EM conductor and 2 magnetic anomalies. Soil sampling outlined numerous Cu-Zn anomalies. Preliminary evaluation of the geophysical and geochemical anomalies attributed them to graphitic horizons within mafic schists and greenstone intrusives. Bad weather prevented the company from returning to the property to carry out a ground follow-up investigation of the anomalies.
Analysis of soil and rock samples collected on the Tor claims returned no anomalous values. The ground geophysical survey returned no anomalies of interest and the claims were allowed to lapse.
Soil sampling on the Ball claims outlined two areas (X & Y) containing moderately anomalous zinc and copper values. Maximum values returned were; copper 236 ppm and zinc 298 ppm. The anomalous areas are mainly underlain by mafic schist belonging to unit DF and carbonaceous phyllite assigned to unit MKcp. The airborne geophysical survey outlined 5 conductive responses four of which correlate with the anomalous soil geochemistry. It appears that none of the anomalies were ever followed up by Consolidated Shoshoni.
True North Gems staked the Meg claims on the basis of their proximity and geological similarity to the company¿s Regal Ridge (Minfile Occurrence #105G 147) emerald property, located 3.5 km to the southeast. Reconnaissance soil sampling returned a single anomalous beryllium and minor anomalous tungsten value from the Meg claims surrounding this occurrence. Reconnaissance geological mapping confirmed the presence of chloritic schist in the area, similar to that mapped on the neighboring Regal Ridge emerald property.
Firestone Ventures carried out a more detailed examination of the Meg claims. Although Firestone Ventures mapped the area surrounding the occurrences as being underlain by unit DK, which Murphy assigns to the Kudz Ze Kayah felsic metavolcanic unit, Firestone¿s Table of Formations describes unit DK as a medium to dark grey, siliceous carbonaceous phyllite which is similar to Murphy¿s unit DKcp. Thus despite using different nomenclature, both Murphy and Firestone agree that the area is mainly underlain by carbonaceous phyllite assigned to the Kudz Ze Kayah unit. Firestone only located one isolated outcrop of chloritic schist (unit DF) in the area surrounding the occurrence.
None of the soil samples collected in the vicinity of the occurrence returned any anomalous elements indicating the potential for either emerald or massive sulfide mineralization. The lack of geochemical response may be explained by heavy overburden covering much of the area.
References
ATLAS EXPLORATIONS LTD, Jun/67. Assessment Report #017492 by J.S. Brock
ATLAS EXPLORATIONS LTD, Jun/67. Assessment Report #017493 by J.S. Brock and J.N. Boateng.
COMINCO LIMITED, Aug/95. Assessment Report #093325 by P.A. MacRobbie.
CONSOLIDATED SHOSHONI GOLD INC, Aug/97. Assessment Report #093731 by G.S. Davidson.
FIRESTONE VENTURES INC, May/2003. Annual Information Form for the fiscal year ended March 31, 2002. Available on the SEDAR website.
FIRESTONE VENTURES INC, Mar/2004. Assessment Report #094446 by W. Wengzynowski.
FIRESTONE VENTURES INC, Jun/2005. Web Site: www.firestoneventures.com.
FIRESTONE VENTURES INC, News Release, 11 Aug/2005.
MURPHY, D.C., 1997. Preliminary geological map of Grass Lakes area, Pelly Mountains, southeastern Yukon. Exploration and Geological Services Division, Indian and Northern Affairs Canada, Open File 1997-3.
MURPHY, D.C., 1998. Stratigraphic framework for syngenetic mineral occurrences, Yukon Tanana Terrane south of Finlayson Lake: A Progress Report. In: Yukon Exploration and Geology 1997, Exploration and Geological Services Division, Indian and Northern Affairs Canada, p.51-58.
MURPHY, D.C. and PIERCEY, S.J., 1999. Geological map of parts 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, Yukon, 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 1999, D.S. Emond and L.H. Weston (eds.), Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 55-66.
MURPHY, D.C. ET AL., 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. ET AL., 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.
TRUE NORTH GEMS INC, Jul/2003. Assessment Report #094417 by B. Gaboury.
TRUE NORTH GEMS INC, Jun/2005. Web Site: www.truenorthgems.com.
YUKON EXPLORATION AND GEOLOGY 2003, p. 20, 26.
Staked as Tak cl 1-72 (Y7782) in May/66 following an airborne mag/EM survey by Atlas Explorations Ltd. The company carried out prospecting and geochemical sampling later in the summer and staked Tak cl 73-78 (Y13676) in Aug/66.
Restaked as Tor cl 1-57 (YB50233) in Jul/94 by Cominco Ltd to cover airborne geophysical targets identified during a Cominco survey conducted in early 1994. In 1994, Cominco completed 7.2 km of line cutting, 5.3 km of HLEM and total field magnetic surveys, geological mapping, prospecting and soil sampling on the claim block.
In May/96 Consolidated Shoshoni Gold Inc staked Ball cl 1-56 (YB83934) on the northern boundary of the Tor claim group. The company carried out soil sampling and a Beep Mat electromagnetic survey in Sep/96 and airborne geophysical survey in May/97.
Restaked within Meg cl 1-122 (YB93395) in Sep/2001 by True North Gems Inc which carried out a reconnaissance soil sampling and prospecting program in 2002. In Dec/2002 True North Gems optioned a 60% interest in the Meg and 3 other claim blocks to Firestone Ventures Inc. Firestone carried out geological mapping, prospecting, silt and soil sampling and pan sampling in 2003. In a news release dated 11 Aug/2005, Firestone reported that it had dropped its option on this and other Finlayson area properties which then reverted to True North Gems.
Capsule Geology
The area is located in the footwall of the Money Creek thrust in the southern portion of the Finlayson Lake massive sulfide district. The area is underlain by metavolcanic and metasedimentary rocks assigned by Murphy et al., (2002) to the Upper Devonian to Lower Mississippian (?) Grass Lakes succession.
The occurrence is underlain by Upper Devonian and Older (?) grit, psammite schist, metapelitic schist and isolated intervals of marble and calcareous schist (units Dq, Dqm). These units are overlain by the Upper Devonian Fire Lake metavolcanic unit (unit DF) that is composed mainly of chloritic phyllite, but also including carbonaceous phyllite and rare muscovite-quartz phyllite of probable felsic meta-volcanic protolith. The Fyre Lake massive sulphide deposit (Minfile Occurrence #105G 034) is hosted in chloritic phyllite of the Fire Lake unit. Mafic and ultramafic meta-plutonic rocks (units Dum and DMi) intrude to the east. These rocks are spatially associated with the Fire Lake unit and are inferred by Murphy and Piercey (2000) to be comagmatic sills and dykes. The Fire Lake unit is overlain by carbonaceous phyllite and quartzite (unit DKcp) assigned to the Kudz Ze Kayah unit. Approximately 3 km north of the occurrence, Murphy mapped a single isolated exposure of felsic meta-volcanic rocks assigned to the Kudz Ze Kayah felsic metavolcanic unit (unit DK).
Atlas¿s geophysical surveys outlined 1 EM conductor and 2 magnetic anomalies. Soil sampling outlined numerous Cu-Zn anomalies. Preliminary evaluation of the geophysical and geochemical anomalies attributed them to graphitic horizons within mafic schists and greenstone intrusives. Bad weather prevented the company from returning to the property to carry out a ground follow-up investigation of the anomalies.
Analysis of soil and rock samples collected on the Tor claims returned no anomalous values. The ground geophysical survey returned no anomalies of interest and the claims were allowed to lapse.
Soil sampling on the Ball claims outlined two areas (X & Y) containing moderately anomalous zinc and copper values. Maximum values returned were; copper 236 ppm and zinc 298 ppm. The anomalous areas are mainly underlain by mafic schist belonging to unit DF and carbonaceous phyllite assigned to unit MKcp. The airborne geophysical survey outlined 5 conductive responses four of which correlate with the anomalous soil geochemistry. It appears that none of the anomalies were ever followed up by Consolidated Shoshoni.
True North Gems staked the Meg claims on the basis of their proximity and geological similarity to the company¿s Regal Ridge (Minfile Occurrence #105G 147) emerald property, located 3.5 km to the southeast. Reconnaissance soil sampling returned a single anomalous beryllium and minor anomalous tungsten value from the Meg claims surrounding this occurrence. Reconnaissance geological mapping confirmed the presence of chloritic schist in the area, similar to that mapped on the neighboring Regal Ridge emerald property.
Firestone Ventures carried out a more detailed examination of the Meg claims. Although Firestone Ventures mapped the area surrounding the occurrences as being underlain by unit DK, which Murphy assigns to the Kudz Ze Kayah felsic metavolcanic unit, Firestone¿s Table of Formations describes unit DK as a medium to dark grey, siliceous carbonaceous phyllite which is similar to Murphy¿s unit DKcp. Thus despite using different nomenclature, both Murphy and Firestone agree that the area is mainly underlain by carbonaceous phyllite assigned to the Kudz Ze Kayah unit. Firestone only located one isolated outcrop of chloritic schist (unit DF) in the area surrounding the occurrence.
None of the soil samples collected in the vicinity of the occurrence returned any anomalous elements indicating the potential for either emerald or massive sulfide mineralization. The lack of geochemical response may be explained by heavy overburden covering much of the area.
References
ATLAS EXPLORATIONS LTD, Jun/67. Assessment Report #017492 by J.S. Brock
ATLAS EXPLORATIONS LTD, Jun/67. Assessment Report #017493 by J.S. Brock and J.N. Boateng.
COMINCO LIMITED, Aug/95. Assessment Report #093325 by P.A. MacRobbie.
CONSOLIDATED SHOSHONI GOLD INC, Aug/97. Assessment Report #093731 by G.S. Davidson.
FIRESTONE VENTURES INC, May/2003. Annual Information Form for the fiscal year ended March 31, 2002. Available on the SEDAR website.
FIRESTONE VENTURES INC, Mar/2004. Assessment Report #094446 by W. Wengzynowski.
FIRESTONE VENTURES INC, Jun/2005. Web Site: www.firestoneventures.com.
FIRESTONE VENTURES INC, News Release, 11 Aug/2005.
MURPHY, D.C., 1997. Preliminary geological map of Grass Lakes area, Pelly Mountains, southeastern Yukon. Exploration and Geological Services Division, Indian and Northern Affairs Canada, Open File 1997-3.
MURPHY, D.C., 1998. Stratigraphic framework for syngenetic mineral occurrences, Yukon Tanana Terrane south of Finlayson Lake: A Progress Report. In: Yukon Exploration and Geology 1997, Exploration and Geological Services Division, Indian and Northern Affairs Canada, p.51-58.
MURPHY, D.C. and PIERCEY, S.J., 1999. Geological map of parts 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, Yukon, 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 1999, D.S. Emond and L.H. Weston (eds.), Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 55-66.
MURPHY, D.C. ET AL., 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. ET AL., 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.
TRUE NORTH GEMS INC, Jul/2003. Assessment Report #094417 by B. Gaboury.
TRUE NORTH GEMS INC, Jun/2005. Web Site: www.truenorthgems.com.
YUKON EXPLORATION AND GEOLOGY 2003, p. 20, 26.
Location Map
Last Updated: Sep 7, 2018
Work History
| Year | Work Type | Comment |
|---|---|---|
| 2003 | Geochemistry: Silt | |
| 2003 | Geochemistry: Soil | |
| 2003 | Geology: Bedrock Mapping | Firestone Ventures carried out detailed exploration program on Meg claims. |
| 2003 | Other: Prospecting | |
| 2002 | Geochemistry: Soil | Reconnaissance soil survey. |
| 2002 | Other: Prospecting | |
| 1997 | Airborne Geophysics: Electromagnetic | Also magnetic survey. |
| 1996 | Geochemistry: Soil | Soil sampling survey over Ball claims. |
| 1996 | Ground Geophysics: EM | Beep Mat electromagnetic survey over Ball claims. |
| 1994 | Airborne Geophysics: Electromagnetic | Also magnetic survey. |
| 1994 | Geochemistry: Soil | |
| 1994 | Geology: Bedrock Mapping | |
| 1994 | Other: Prospecting | |
| 1994 | Ground Geophysics: Magnetics | Also HLEM survey. Gravity survey not performed. |
| 1966 | Airborne Geophysics: Electromagnetic | Also magnetic survey. |
| 1966 | Geochemistry: Soil | |
| 1966 | Other: Prospecting | |
| 1966 | Ground Geophysics: Magnetics | Also EM 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: carbonaceous phyllite
Terrane: Yukon-Tanana
Period Max: Devonian
Age Max: 365 MA
Period Min: Carboniferous
Age Min: 355 MA
Rock Major: carbonaceous phyllite
Rock Minor:
Reference: Murphy et al. (2001) - YGS OF 2001-33
Geological Unit (1M): DMF
Geological Unit (250K): DMF3
Assessment Reports that overlap occurrence
| Report Number | Year | Title | Worktypes | Holes Drilled | Meters Drilled |
|---|---|---|---|---|---|
| 094503 | 2004 | Assessment Report on Geological and Geochemical Surveys of the RB 1-94 Claims | Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology | ||
| 094446 | 2003 | Assessment Report Describing Geology, Mineralization and Geochemistry at the Meg Property | Silt - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other | ||
| 094417 | 2002 | 2002 Report of Field Activities on the Meg Claims | Soil - Geochemistry, Bedrock Mapping - Geology, Prospecting - Other | ||
| 093325 | 1994 | 1994 Assessment Report Rife and Tor Properties Linecutting, Ground Geophysics (HLEM, Mag and Gravity), Soil Geochemistry and Geological Mapping | Rock - Geochemistry, Soil - Geochemistry, Bedrock Mapping - Geology, EM - Ground Geophysics, Gravity Survey - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other | ||
| 017492 | 1966 | Magnetic and Electromagnetic Geophysical Surveys Tak Mineral Claim Group | EM - Ground Geophysics, Magnetics - Ground Geophysics, Line Cutting - Other |
Related References
| Number | Title | Page(s) | Document Type |
|---|---|---|---|
| ARMC014017 | Tak group J.E.M. survey - Hi & Lo freq. profile | Geophysical Map | |
| ARMC014028 | Aero Mag-EM survey - Staking location - Fyre Lake area | Geophysical Map | |
| ARMC014003 | Map showing Tak group geochem sample locations and values | Geoscience Map (General) | |
| ARMC014002 | Map showing Tak group sample locations and values | Geoscience Map (General) | |
| ARMC014012 | Stats analysis chart - Geochem - Copper ppm - Tak group | Miscellaneous Company Documents | |
| ARMC014016 | Sketch map - Geophysics compilation - Tak | Geophysical Map | |
| ARMC014018 | Magnetometer survey - Tak claim group | Geophysical Map | |
| ARMC013989 | Geochemical soil sampling survey - Copper results, contour map - Tak mineral claims - Fyre Lake area | Geochemical Map | |
| ARMC013990 | Geochemical soil sampling survey - Cu and Zn results by atomic absorption spectrophotometer analysis - Tak mineral claims - Fyre Lake area | Geochemical Map | |
| ARMC013988 | Geochemical soil sampling survey - Zinc results, contour map - Tak mineral claims - Fyre Lake area | Geochemical Map | |
| ARMC014010 | Analytical worksheet - Geochemical - R-72 - Tak | Miscellaneous Company Documents | |
| ARMC014009 | Analytical worksheet - Geochemical - R-62, R-62-66 and R-72 - Tak | Miscellaneous Company Documents | |
| ARMC014008 | Analytical worksheet - Geochemical - R-73 - Tak | Miscellaneous Company Documents | |
| ARMC014007 | Analytical worksheet - Geochemical - R-83 - Tak | Miscellaneous Company Documents | |
| ARMC014011 | Analytical worksheet - Geochemical - R-92 - Tak | Miscellaneous Company Documents | |
| ARMC014014 | Geochem survey - Cu-left of line sampled - Tak claim group | Geochemical Map | |
| ARMC014013 | Geochemical field notes - Tak | Miscellaneous Company Documents | |
| ARMC020544 | Field notebook - Atlas Ex. 1966 - Ash, Ant, Tau, Calco, Dub 1-2, Tak groups | Miscellaneous Company Documents | |
| ARMC020570 | Field notebook - EM - Tak group | Miscellaneous Company Documents |
| Citations |
|---|
