Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52O06SE00084

Record: MDI52O06SE00084

General

Mineral Record Identification
Record Name(s) Powerline Zone - 9999, Kawashe Lake #23 - 9999, Dst Quality Control Entry - 9999
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

Commodities

Primary Commodities: Copper, Gold



Location

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).



Exploration History

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.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
52O06SE0042 52O11SW0070 52O11SW0070
52O06SE0017 52O06SE0096 52O06SE0096
52O06SE0040 52O07SW0032 52O07SW0032
52O06SE0039 52O06SE0076 52O06SE0076

Geology

Province: Superior

Subprovince: Uchi

Geological Age: Archean  



Geology Comments

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.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic lava flow-unsubdivided 1 Flows Brecciated And Sheared Host
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

Lithology Comments

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.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1GoldEconomicOre
2PyrrhotiteEconomicOre
3PyriteEconomicOre
4ChalcopyriteEconomicOre
5SphaleriteEconomicOre
QuartzAlterationSilicification1UnknownVeins
CarbonateAlterationCarbonatization2UnknownVeins
EpidoteAlterationEpidotization3UnknownDisseminated
ChloriteAlterationChloritic4UnknownDisseminated
PyrrhotiteAlterationSulphidation5MediumReplacement
PyriteAlterationSulphidation6MediumReplacement

Mineralization Comments

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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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office