Ontario Geological Survey
Permanent Link to this Record:
MDI42E05SW00028
| Record Name(s) | Barbara Lake - 1968, Gunnex - 1968, Kagiano-Gunnex-Tombill Property - 1968, Skalesky - 1988, Thibault/Miron - 1993, Croon Lake - 1968 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1997-Feb-26 |
| Date Last Modified | 2022-May-06 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Gold
Secondary Commodities: Silver
Township or Area: Barbara Lake Area
Latitude: 49° 19' .56" Longitude: -87° 45' 40.13"
UTM Zone: 16 Easting: 444682.07 Northing: 5462954.89 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42E05SW
Point Location Description: Trenches, diamond drill holes.
Location Method: Other Literature
Access Description: The Barbara Lake occurrence is located 40 km northeast of Nipigon and 160 km northeast of Thunder Bay. The occurrence is located on the east side of Barbara Lake. Access is via Highway 11 to the Domtar Camp 56 Road. Follow the Domtar road for 22 km to the Southwest Bay on the Barbara Lake access road. Barbara Lake is 15 km south on the road. Boat access from this point is approximately 6.5 km to the claims.
1952: Copper mineralization was found to the southwest in a breccia zone along Glacier Creek fault. 1968: Copper mineralization was discovered in 1968 in the Barbara Lake area. The ground was staked and optioned to Kagiano Mines Ltd. Gunnex Mines Ltd. and Tombill Mines Ltd. entered into a joint venture and carried out geological, geochemical and geophysical (EM and Mag) surveys. 1969: 9 diamond drill holes totalling 3,341 feet of diamond drilling was conducted. 1972-1974: Barbara Lake Mines Ltd. optioned the property, and a report was written in 1973. Trenching was also conducted. 1988: P. Skalesky held the property and conducted prospecting and sampling. 1993: D. Thibault and B. Miron conducted trenching and sampling. 1994: D. Thibault and B. Miron conducted soil sampling, geophysical surveys (EM and Mag) and sampling and assays.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 24 | 42E05SW0022 | 42E05SW0022 |
| 63.2681 | 42E05SE0011 | 42E05SE0011 |
| 2.15875 | 42E05SW0001 | 42E05SW0001 |
| 63.3333 | 42E05SE0010 | 42E05SE0010 |
| 2.1320 | 42E05SW0023 | 42E05SW0023 |
| 63.6356 | 42E05SW0031 | 42E05SW0031 |
Province: Superior
Subprovince: Quetico
Geological Age: Archean
Dec 07, 2005 (B Nelson) - The area is underlain by Archean and Proterozoic aged rocks. The Archean rocks include the Quetico metasedimentary rocks. The metasedimentary rocks are intruded by granitic rocks, porphyry, pegmatite and aplite. The Proterozoic rocks are represented by the Sibley Group sedimentary rocks. Intrusive into the Proterozoic sedimentary rocks and the older formations are bodies of diabase. A major north northeast trending fault, the Jackpine River Glacier Creek Fault transects the area. Pudifin (1973) described the mineralization as a breccia fault zone over a length of 2400 feet: Heavier concentrations of chalcopyrite are found in surface showings along the westerly side of the fault. Additional prospecting and trenching in the fall of 1972 found a strongly brecciated zone cemented by chalcopyrite and pyrite. This occurrence is also along the westerly side of the fault zone. Mineralization consists of heavily disseminated to massive cementing material of chalcopyrite, pyrite and silica. Breccia fragments are of several types: including felsic to near cherty volcanic rock; chloritic fragments, possibly also of volcanic origin; and altered, chloritized sedimentary rocks. *Thibault and Clark (1995) suggest: The copper bearing breccia zone is hosted within northeast trending faults with a focus of mineralization being located at the intersection of the two structures. The fault breccia is composed of gneissic and granitic fragments cemented with varying amount of pyrite chalcopyrite and quartz. The mineralized fault breccia has been traced for up to 2400 feet with widths of 60 100 feet, and up to 6.67% copper in grab samples.
| Rock Type | Rank | Composition | Texture | Relationship | Granite | 1 | Brecciated | Host |
|---|---|---|---|---|
| Porphyry-unsubdivided | 2 | Near | ||
| Pegmatite | 3 | Near | ||
| Granite | 4 | Aplite | Near | |
| Diabase | 5 | Diabase | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| Chlorite | Alteration | Chloritic | 1 | Strong | Disseminated |
Dec 07, 2005 (B Nelson) - Pudifin (1973) stated that samples across 8.0 feet assayed 2.35% copper and 0.135 ounce per ton Ag; including 3.99% copper across 4.0 feet. A sample collected by Placer Dome Inc. from the Skalesky Barbara Lake property assayed 8.71% Cu and 5990 ppb (0.174 ounce per ton) Au. A sample (93BDT 01) submitted by D. Thibault to the Resident Geologist program in 1993 assayed <0.01 ounce per ton Au and 9.53% Cu. Sampling by D. Thibault and B. Miron indicated values up to 6.67% Cu, 11.2 ppm Ag and 24 ppb Au. (Resident Geologist's Files, Schreiber Hemlo District, Thunder Bay).
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files, Thunder Bay office
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District
Publication Number: M2232 Scale: 1:253,440 Date: 1973
Author: Carter M.W., McIlwaine W.H., Wisbey P.A.
Publisher Name: Ontario Division of Mines
Location:
Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.
Publication Number: OFR5951 Page: 889-891 Date: 1996
Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.
Publisher Name: Ontario Geological Survey
Location:
Map - Georgia Lake area, Thunder Bay District
Publication Number: M2056 Scale: 1:63,360 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology and lithium deposits of Georgia Lake area, District of Thunder Bay
Publication Number: R031 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
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