Ontario Geological Survey
Permanent Link to this Record:
MDI52F07SW00021
| Record Name(s) | Early Lake - 1988 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-24 |
| Date Last Modified | 2022-Jul-07 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Lower Manitou Lake Area
Latitude: 49° 19' 15.14" Longitude: -92° 55' 26.46"
UTM Zone: 15 Easting: 505521.749 Northing: 5463129.361 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F07SW
Point Location Description: Transfer
Location Method: Conversion from MDI
Access Description: The Early Lake claims are located in the Lower Manitou Lake area, about 50 km south of Dryden, Ontario and are centred on 49°20'N latitude, 92°55' W longitude. Ten claims cover about 182 hectares. Access to the area is by secondary highway from Fort Francis, Ontario and along logging roads that pass about 1000m north of the property. (Assessment File 52/F07SW BB-1, Nelson, D.B., Kenora Resident Geologist Office)
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.12761 / 52F07SW BB-4 | 52F07SW0008 | 52F07SW0008 |
Province: Superior
Subprovince: Wabigoon
Terrane: Western Wabigoon
Belt: Eagle-Wabigoon-Manitou
Geological Age: Precambrian
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate lava flow-unsubdivided | 1 |
|---|---|---|---|---|
| Vein | 2 | quartz | Host | |
| Quartz-Feldspar Porphyry | 3 | |||
| Felsic Crystal Tuff | 4 | |||
| Breccia-unsubdivided | 5 |
Feb 23, 2010 (C Ravnaas) - Most of the area is underlain by northeast trending fine to medium-grained basalt and medium- to coarse-grained amphibolite. Interbeds of tuff breccia that range in thickness from 1 m to 30 m occur in the northwest area of the grid. The breccia consists of felsic fragments, up to 40 cm across, in an intermediate matrix. Layers of felsic tuff, 30 cm thick occur within the breccia units. Northeast trending quartz-feldspar porphyry dykes, that range between 0.5 and 2 m wide, intrude mafic and intermediate volcanic rocks in the northwest part of the grid area. A felsic to intermediate crystal tuff, 2 m to 3 m thick, forms the footwall in the trenches located on claim K.1058376. The adjacent metavolcanics are sheared and contain quartz veins pyrite, chalcopyrite and pyrrhotite. Northeast trending shear zones that are up to 3 m wide are present on claims K.1058376 and K.1058377. (Assessment File 52/F07SW BB-4, Nelson, D.B., Kenora Resident Geologist Office)
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore |
Feb 23, 2010 (C Ravnaas) - Rock Samples: A hand held diamond bit core sampler (G.S.C. design) was used to collect continuous samples from trenches located on claim K.1058376. One rock core sample assayed 5,090 ppb Au across 40 cm. This sample consists of vein quartz, chlorite schist and carbonate. The remainder of the rock cores have low gold values. Rock grab samples assay up to 1,150 ppb. Northeast trending quartz-feldspar porphyry dykes, that range between 0.5 and 2 m wide, intrude mafic and intermediate volcanic rocks in the northwest part of the grid area. A felsic to intermediate crystal tuff, 2 m to 3 m thick, forms the footwall in the trenches located on claim K.1058376. The adjacent metavolcanics are sheared and contain quartz veins pyrite, chalcopyrite and pyrrhotite. Northeast trending shear zones that are up to 3 m wide are present on claims K.1058376 and K.1058377. (Assessment File 52/F07SW BB-4, Nelson, D.B., Kenora Resident Geologist Office)
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