Ontario Geological Survey
Permanent Link to this Record:
MDI52O06SE00084
Record Name(s) | Powerline Zone - 9999, Kawashe Lake #23 - 9999, Dst Quality Control Entry - 9999 |
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Related Record Type | Simple |
Related Record(s) | |
Record Status | Occurrence |
Date Created | 1997-Jan-07 |
Date Last Modified | 2022-Jul-18 |
Created By | |
Revised By |
Primary Commodities: Copper, Gold
Township or Area: Kawashe Lake Area
Latitude: 51° 21' 13.12" Longitude: -91° 6' 40.41"
UTM Zone: 15 Easting: 631519.298 Northing: 5690846.074 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O06SE
Point Location Description: Diamond drill hole
Location Method: Data Compilation
Access Description: LOCATION: 63 KM WSW of Pickle Lake, and 2 km SE of the Golden Patricia Mine. The occurrence is located near the Golden Patricia Mine power line about midway between Muskegsagagen Lake and Hour Lake (Local Name) ACCESS: Access to this occurrence is best gined through the Golden Patricia mine which is serviced by an all-weather airstrip and a winter road from Pickle Lake. Apropriately equipped aircraft may land on Muskegsagagen Lake and Hour Lake (local name).
1984: Airborne MAG, EM survey over an area including the occurrence. Follow up with ground MAG. 1985: Ground MAG, EM and IP surveys by St. Joe Canada 1986: Separate airborne MAG and EM surveys over the area by St. Joe Canada and Geocannex 1986: Diamond drilling in area by St. Joe Canada. 1988: Additional geophysics by and diamond drilling by St. Joe and Bond Gold which located the occurrence. 1989-90: Additional drilling by Bond Gold on Powerline Zone.
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
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52O06SE0042 | 52O11SW0070 | 52O11SW0070 |
52O06SE0017 | 52O06SE0096 | 52O06SE0096 |
52O06SE0040 | 52O07SW0032 | 52O07SW0032 |
52O06SE0039 | 52O06SE0076 | 52O06SE0076 |
Province: Superior
Subprovince: Uchi
Geological Age: Archean
Dec 07, 2005 (A Mitchell) - Gold has 2 modes of occurrence in the Powerline Zone. The first is in a series of 6 parallel gold bearing qv's. The second is in silicified replaced iron formation. The iron formation, banded chert and magnetite, occurrs with tuffaceous metasediments within a succession of mafic metavolcanic flows. The succession is cut by qtz-feld porphpyry intrusives. The 6 gold-bering qv's strike 075 deg and dip steeply south. They occur in mafic metavolcanics and appear to occupy axial planar structures to minor drag folds in the iron formation. The gold in the iron formation occurrs where it is cut by the axial planar structures hosting the gold-bearing quartz veins. There, the principal sulphide replacing magnetite is pyrrhotite, although pyrite, chalcopyrite and sphalerite are noted in the drill logs. Visible gold is also present in the zone. Gold at the Power Line Zone is also found with light grey, quartz-carbonate veining hosted by a mafic metavolcanic flow and with a strongly brecciated and sheared zone mineralized with pyrrhotite within a mafic metavolcanic flow.
Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Flows | Brecciated And Sheared | Host |
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Vein | 2 | Quartz-Carbonate | Axial Planar | Host |
Magnetite Ironstone | 3 | Magnetite-Chert-Sulphide I. Fm | Banded | Adjacent |
Breccia-unsubdivided | 4 | Brecciated Mafic Flow | Host | |
Mylonite/Fault Gouge/Pseudotachylite | 5 | Shear Zone | In Mafic Volcanics | Host |
Quartz-Feldspar Porphyry | 6 | Quartz-Feldspar Porphyry | Near |
Dec 07, 2005 (A Mitchell) - Gold has 2 modes of occurrence in the Powerline Zone. The first is in a series of 6 parallel gold bearing qv's. The second is in silicified replaced iron formation. The iron formation, banded chert and magnetite, occurrs with tuffaceous metasediments within a succession of mafic metavolcanic flows. The succession is cut by qtz-feld porphpyry intrusives. The 6 gold-bering qv's strike 075 deg and dip steeply south. They occur in mafic metavolcanics and appear to occupy axial planar structures to minor drag folds in the iron formation. The gold in the iron formation occurrs where it is cut by the axial planar structures hosting the gold-bearing quartz veins. There, the principal sulphide replacing magnetite is pyrrhotite, although pyrite, chalcopyrite and sphalerite are noted in the drill logs. Visible gold is also present in the zone. Gold at the Power Line Zone is also found with light grey, quartz-carbonate veining hosted by a mafic metavolcanic flow and with a strongly brecciated and sheared zone mineralized with pyrrhotite within a mafic metavolcanic flow.
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
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1 | Gold | Economic | Ore | ||||
2 | Pyrrhotite | Economic | Ore | ||||
3 | Pyrite | Economic | Ore | ||||
4 | Chalcopyrite | Economic | Ore | ||||
5 | Sphalerite | Economic | Ore | ||||
Quartz | Alteration | Silicification | 1 | Unknown | Veins | ||
Carbonate | Alteration | Carbonatization | 2 | Unknown | Veins | ||
Epidote | Alteration | Epidotization | 3 | Unknown | Disseminated | ||
Chlorite | Alteration | Chloritic | 4 | Unknown | Disseminated | ||
Pyrrhotite | Alteration | Sulphidation | 5 | Medium | Replacement | ||
Pyrite | Alteration | Sulphidation | 6 | Medium | Replacement |
Dec 07, 2005 (A Mitchell) - Gold has 2 modes of occurrence in the Powerline Zone. The first is in a series of 6 parallel gold bearing qv's. The second is in silicified replaced iron formation. The iron formation, banded chert and magnetite, occurrs with tuffaceous metasediments within a succession of mafic metavolcanic flows. The succession is cut by qtz-feld porphpyry intrusives. The gold in the iron formation occurrs where it is cut by the axial planar structures hosting the gold-bearing quartz veins. There, the principal sulphide replacing magnetite is pyrrhotite, although pyrite, chalcopyrite and sphalerite are noted in the drill logs. Visible gold is also present in the zone. The following are among the better assays reported from the Power Line Zone: PL-88-07 in iron formation, 5.86 g/tonne over 7.55 m, including 60.00 g/tonne over 0.65 m in quartz-carbonate veins, 2.74 g/tonne over 0.30 m in brecciated and sheared mafic metavolcanic flow 5.86 g/tonne over 0.95 m PL-88-08 in iron formation, 7.25 g/tonne over 2.80 m and 2.41 g/tonne over 0.95 m.
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