Ontario Geological Survey
Permanent Link to this Record:
MDI42F05SW00011
| Record Name(s) | Bunny Lake Sulphide Occurrence - 1992 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1996-Dec-31 |
| Date Last Modified | 2022-May-09 |
| Created By | |
| Revised By |
Primary Commodities: Sulphur/Pyrite
Secondary Commodities: Gold
Township or Area: Everest Lake Area
Latitude: 49° 17' 20.94" Longitude: -85° 57' 19.89"
UTM Zone: 16 Easting: 575951.718 Northing: 5460124.777 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42F05SW
Point Location Description: Small outcrop
Location Method: Field Visit
Access Description: The Bunny Lake sulphide occurrence is located approximately 20.5 km north-northwest of Manitouwadge and 500 m northeast of Bunny Lake. The occurrence is accessible via motor vehicle. From Manitouwadge, travel west and then north along the Caramat Industrial Road for approximately 33.75 km to a point approximately 2.2 km north of the Michal Lake Road intersection. Sulphide mineralization is exposed in several small outcrops located approximately 35 m west of the Caramat Industrial Road.
1965: Geological mapping; M.E. Coates (ODM). 1978-1979: Regional lake sediment and water geochemical survey; GSC-MNR. Samples collected from lakes in the vicinity of the occurrence contained slightly anomalous amounts of Au, Cu and Zn. 1989: 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 survey; GSC. Samples collected in the vicinity of the occurrence contained slightly anomalous amounts of Cu and Zn. 1992: Lithogeochemical sampling; D.B. McKay (OGS).
Province: Superior
Subprovince: Quetico
Geological Age: Archean
Dec 07, 2005 (D McKay) - The occurrence is located within the Quetico Subprovince and is underlain primarily by locally migmatitic, medium- to coarse-grained, moderately foliated, biotite-quartz-feldspar paragneiss. The rocks in the vicinity of the occurrence are moderately to locally strongly foliated (260 degrees/subvertical). Mineral assemblages suggest these rocks have experienced upper amphibolite facies-grade regional metamorphism (Williams and Breaks 1990). Numerous, narrow (3 to 6 cm wide), foliation-parallel quartz veins and felsic dikes occur in the vicinity of the occurrence. The Little Nama Lake Lineament, a regional-scale, easterly-trending topographic feature, is located approximately 0.6 km north of the occurrence (Coates 1968, Map 2141). The occurrence consists of medium- to coarse-grained, disseminated, anhedral grains and localized euhedra of pyrite hosted in moderately foliated, coarse-grained, biotite-quartz-feldspar paragneiss.
| Rock Type | Rank | Composition | Texture | Relationship | Paragneiss | 1 | Bio-Q-Fel Paragneiss | Host |
|---|---|---|---|---|
| Granitoid-Unsubdivided | 2 | Narrow Felsic Dikes | Near |
Dec 07, 2005 (D McKay) - The occurrence consists of medium- to coarse-grained, disseminated, anhedral grains and localized euhedra of pyrite hosted in moderately foliated, coarse-grained, biotite-quartz-feldspar paragneiss.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore |
Dec 07, 2005 (D McKay) - The occurrence consists of medium- to coarse-grained, disseminated, anhedral grains and localized euhedra of pyrite hosted in moderately foliated, coarse-grained, biotite-quartz-feldspar paragneiss. The pyrite generally constitutes less than 1% of the paragneiss, but local concentrations of up to 3% occur. Where abundant, the pyrite tends to be associated with more mafic zones within the paragneiss. The sulphides appear to be erratically distributed within a 50 m by 25 m area. Small, thin, rusty gossans have developed locally. Similar sulphide occurrences are widely distributed throughout the metasedimentary rocks in the surrounding area. Most of these sulphide occurrences contain slightly anomalous quantities of base metals and occasionally gold. The economic potential of these occurrences is restricted by their small size, erratic distribution and low metal content. A grab sample of rusty-weathering, pyritic, coarse- grained, moderately foliated biotite-quartz-feldspar paragneiss collected from the occurrence in 1992 by D.B. McKay (OGS) returned assay values of 0.003 ounce Au per ton, 158 ppm Cu and 128 ppm Zn.
| Rank | Classification |
|---|---|
| 1 | Unknown |
| 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:
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