Ontario Geological Survey
Permanent Link to this Record:
MDI42F05SW00017
| Record Name(s) | Adze Lake Sulphide Occurrence - 1994 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1997-Jan-02 |
| Date Last Modified | 2022-May-09 |
| Created By | |
| Revised By |
Primary Commodities: Sulphur/Pyrite
Township or Area: Everest Lake Area
Latitude: 49° 17' 16.18" Longitude: -85° 46' 30.22"
UTM Zone: 16 Easting: 589076.807 Northing: 5460174.726 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42F05SW
Point Location Description: Roadside outcrops
Location Method: Data Compilation
Access Description: The Adze Lake sulphide occurrence is located approximately 20 km north-northeast of Manitouwadge, 8 km east of Everest Lake, and 100 m south of the southernmost tip of Adze Lake. The occurrence is accessible via motor vehicle followed by travel on foot. From Manitouwadge, travel east and then north along the Camp 70 logging road for approximately 31.5 km to the Jim Lake road. Proceed north along the Jim Lake road for approximately 7.85 km to the Husak road. Proceed west along the Husak road for approximately 12 km to where a small creek crosses the road. Sulphide mineralization is reported to occur in several outcrops located proximal to the road in the vicinity of the creek (Breaks and Williams 1990; Resident Geologist's files, Schreiber-Hemlo District, Thunder Bay).
1965: Geological mapping; M.E. Coates (ODM). 1978-1979: Regional lake sediment and water geochemical survey; GSC-MNR. A sample collected from Adze Lake did not contain anomalous amounts of gold nor base metals. Samples collected from other lakes in the vicinity of the occurrence contained slightly anomalous amounts of Ni. 989: Geological mapping; H. Williams and F. Breaks (OGS). Dighem airborne geophysical survey (EM, MAG, VLF-EM); Noranda Exploration Company, Limited and Noranda Minerals Inc. (Geco Division). 1991-1992: Reconnaissance till sampling program; GSC. Samples collected in the vicinity of the occurrence contained slightly anomalous amounts of Cu and Ni.
Province: Superior
Subprovince: Quetico
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Amphibolite
Dec 07, 2005 (D McKay) - The Adze Lake sulphide occurrence is located within the Quetico Subprovince approximately 1 km north of the Quetico-Wawa Subprovince boundary (Williams and Breaks 1990). The rocks in the vicinity of the occurrence are moderately to locally strongly foliated (080 degrees/subvertical). Mineral assemblages indicate the rocks have experienced upper amphibolite facies-grade regional metamorphism (Williams and Breaks 1990). The occurrence is underlain primarily by an east-trending sequence of migmatitic paragneiss which has been intruded by a northeast-striking, coarse-grained, diabase dike (Breaks and Williams 1990). The diabase dike varies in width up to 200 m and can be traced along strike for approximately 3.5 km (Breaks and Williams 1990). Sulphide mineralization occurs within the diabase. An east-trending, regional scale, linear topographic feature referred to as the Little Nama Lake lineament (Coates 1968, Map 2141) is located approximately 1.75 km north of the occurrence. A northwest-striking, sinistral fault is located approximately 1.5 km north of the occurrence (Coates 1968, Map 2141; Breaks and Williams 1990). This fault parallels the northeast shore of Adze Lake and can be traced for approximately 10 km along strike.
| Rock Type | Rank | Composition | Texture | Relationship | Diabase | 1 | Diabase Dike | Coarse-Grained | Host |
|---|---|---|---|---|
| Paragneiss | 2 | Near |
Dec 07, 2005 (D McKay) - The occurrence is underlain primarily by an east-trending sequence of migmatitic paragneiss which has been intruded by a northeast-striking, coarse-grained, diabase dike (Breaks and Williams 1990).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Ore |
Dec 07, 2005 (D McKay) - Pyrite and pyrrhotite are reported to occur as disseminated grains within a coarse-grained diabase dike (Resident Geologist's files, Schreiber-Hemlo District, Thunder Bay). The sulphides locally constitute 3 to 5% of the diabase. It is not known if any copper is associated with this relatively large body of diabase. Many of the smaller diabase dikes in the area are known to contain copper (Coates, 1968). To date, the economic potential of these occurrences has been limited by their narrow widths and the erratic distribution and low grades of the copper mineralization.
| Rank | Classification |
|---|---|
| 1 | Magmatic |
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
Map - Geology of the Manitouwadge-Hornepayne area
Publication Number: OFM0142 Scale: 1:50,000 Date: 1990
Author: Williams H.R., Breaks F.W.
Publisher Name: Ontario Geological Survey
Location:
Mono - Mineral Occurrences in the Manitouwadge Area, Volumes 1, 2 and 3
Publication Number: OFR5906 Date: 1994
Author: McKay D.B.
Publisher Name: Ontario Geological Survey
Location:
File - Schreiber-Hemlo Resident Geologist Mineral Deposit files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
Map - Stevens sheet, Thunder Bay District
Publication Number: M2141 Scale: 1:63,360 Date: 1967
Author: Coates M.E.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of Stevens-Kagiano Lake area, District of Thunder Bay
Publication Number: R068 Date: 1968
Author: Coates M.E.
Publisher Name: Ontario Dept. of Mines
Location:
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