Ontario Geological Survey
Permanent Link to this Record:
MDI42E01SE00003
| Record Name(s) | Lloyd Davis Sulphide Occurrence - 1991, Davis - 1991, Lexindin - 1991, Big Joe Creek (North) Sulphide Occurrence - 9999 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Mar-27 |
| Date Last Modified | 2022-May-18 |
| Created By | |
| Revised By |
Primary Commodities: Sulphur/Pyrite
Township or Area: Blood Lake Area
Latitude: 49° 4' 13.18" Longitude: -86° 13' 21.82"
UTM Zone: 16 Easting: 556771.318 Northing: 5435564.75 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42E01SE
Point Location Description: Trench
Location Method: Field Visit
Access Description: The Lloyd-Davis sulphide occurrence is located approximately 32 km west-southwest of Manitouwadge, 7 km southeast of Vein Lake, and 1.25 km southeast of the southern end of Little Joe Lake. The occurrence is accessible via motor vehicle followed by travel in boat and on foot. From Manitouwadge, proceed west and north along the Caramat Industrial road for approximately 16.8 km to the Lower Landing road. Proceed west along the Lower Landing road for approximately 7 km to the Pic River. Cross the river and proceed west, on foot, along a well maintained trapline trail for approximately 12 km to the main showing at the Baarts-Donaldson copper occurrence (described elsewhere in this report). Proceed through the bush on a bearing of 152 degrees for approximately 1.8 km to the vicinity of the occurrence. Sulphides are exposed in several small stripped areas and within a trench located along the top of a small northeasterly-trending hill. Alternatively, the occurrence is accessible via float plane to a small unnamed lake located approximately 2.25 km northeast of the occurrence, followed by travel on foot from the south end of this lake on a bearing of approximately 210 degrees.
1955: Stripping and trenching; prospector L. Paoletti (?). Line cutting, geological mapping and a ground geophysical survey (MAG); Lexindin Gold Mines Limited. A number of mineralized zones and magnetic aomalies were discovered at this time. 1966: Geological mapping; M.E. Coates (ODM). 1971: Stripping and trenching; prospector E. Starr. 1978: Regional lake sediment and water geochemical survey; GSC-MNR. Samples collected in the vicinity of the occurrence contained slightly anomalous amounts of Ni but not Cu, Zn nor Au. 1989: Dighem airborne geophysical survey (EM, MAG, VLF-EM); Noranda Exploration Company Limited and Noranda Minerals Inc. (Geco Division). 1991: Lithogeochemical sampling; D.B. McKay (OGS). 1991-1992: Reconnaissance till sampling survey; I.M. Kettles (GSC).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.657 | 42E01SE8348 | 42E01SE8348 |
| 63.1660 | 42E01SE0004 | 42E01SE0004 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Manitouwadge-Hornepayne
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Amphibolite
Dec 07, 2005 (D McKay) - The occurrence is located in the Wawa Subprovince and is underlain primarily by a narrow (up to 600 m wide), north- northeasterly-trending (020 ), discontinuous belt of highly deformed and metamorphosed, locally migmatitic, mafic meta- volcanic and metasedimentary rocks interpreted to represent the western extension of the Manitouwadge greenstone belt (Knight 1955; Coates 1970; Hawkins 1971: Kusins 1980). These metavolcanic and metasedimentary rocks are enclosed within granitic gneisses of the Black-Pic batholithic complex and have been intruded locally by dikes of quartz-feldspar pegmatite and diabase (Knight 1955; Coates 1970). The Little Joe Lake fault, a regional-scale, northwesterly-trending, dextral fault is located approximately 1 km north of the occurrence (Coates 1970, Map 2192). Several small (2 m wide by 3 m long) stripped areas and one trench (11.5 m long by 1 m wide by 0.75 m deep) occur in the vicinity of the occurrence. The stripped areas and the trench expose a discontinuous zone(s) of sulphide-mineralized rock approximately 100 m wide and 875 m in length. This mineralized zone trends parallel to the local foliation (approximately 200 ) and is centered around a 6 m wide diabase dike (Knight 1955; Hawkins 1972). The sulphides occur primarily within strongly deformed and metamorphosed, locally migmatitic, mafic metavolcanic and metasedimentary rocks.
| Rock Type | Rank | Composition | Texture | Relationship | Gneiss-Unsubdivided | 1 | Q-Fel-Bio-Hb Gneisses | Host |
|---|---|---|---|---|
| Paragneiss | 2 | Biotitic, Q-Rich Paragneiss | Host | |
| Silicate Ironstone | 3 | Q-Rich If(?) | Host | |
| Diabase | 4 | Diabase | Near |
Dec 07, 2005 (D McKay) - The mafic metavolcanic rocks are typically rusty-weathering, moderately to locally strongly foliated (200 degrees /70 degrees W), medium-grained, locally banded (on a cm scale), quartz-feldspar-biotite-hornblende gneisses and schists. The metasedimentary rocks consist primarily of rusty- to tan- and yellow-weathering, moderately to locally strongly foliated, coarse-grained, narrowly banded (on a mm to cm scale), biotitic, quartz-rich schists and gneisses.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 4 | Chalcopyrite | Economic | Ore |
Dec 07, 2005 (D McKay) - The sulphides consist primarily of pyrite, pyrrhotite and very rare chalcopyrite (?). The sulphides typically constitute 2 to 3% of the mineralized zone, and occur as fine- to medium-grained, subhedral, disseminated grains and poorly defined, narrow, foliation-parallel laminae. Local concentrations of up to 15% pyrrhotite and pyrite occur in a 50 cm wide, sheared and brecciated zone within hornblende-rich gneiss exposed in the west end of the trench. Magnetite occurs as fine- to medium-grained disseminated grains in most of the mafic metavolcanic rocks in the area. Most of the sulphides in the vicinity of the occurrence appear to be related to the intrusion of a diabase dike. The economic potential of the occurrence is limited by this association and by the absence of significant gold or base metals. Grab samples collected from the occurrence in 1991 by D.B. McKay for the OGS returned assay values which varied from 37 to 181 ppm Cu and 7 to 1170 ppm Zn. No gold nor silver was detected.
| Rank | Classification |
|---|---|
| 1 | Hydrothermal |
| 2 | Igneous Contact |
| Rank | Characteristic |
|---|---|
| 1 | Breccia |
| 3 | Disseminated |
| 2 | Sheared |
Map - Killala-Vein lakes area, District of Thunder Bay
Publication Number: P0382 Scale: 1:63,360 Date: 1997
Author: Coates M.E.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Vein Lake sheet, Thunder Bay District
Publication Number: M2192 Scale: 1:63,360 Date: 1970
Author: Coates M.E.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Killala-Vein lakes area, District of Thunder Bay
Publication Number: R081 Date: 1970
Author: Coates M.E.
Publisher Name: Ontario Dept. of Mines
Location:
Book - AF 63.1660
Publication Number: 63.1660 Date: 1965
Author: MacTavish, R.O.
Publisher Name:
Location: Thunder Bay RGP
Map - Manitouwadge sheet, districts of Thunder Bay and Algoma, geological compilation series
Publication Number: P0494 Scale: 1:126,720 Date: 1997
Author: Milne V.G.
Publisher Name: Ontario Dept. of Mines
Location:
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files, The Economic Potential of the L.M.M. Baarts Property
Publication Number: Min Dep Date: 1971
Author: Hawkins, W.M.
Publisher Name:
Location: Thunder Bay RGP
Map - Manitouwadge-Wawa sheet, geological compilation series, Algoma, Cochrane, Sudbury and Thunder Bay districts
Publication Number: M2220 Scale: 1:253,440 Date: 1972
Author: Milne V.G., Giblin P.E., Bennett G., Thurston P.C., Wolfe W.J., Giguere J.F., Leahy E.J., Rupert R.J.
Publisher Name: Ontario Division of Mines
Location:
File - Schreiber-Hemlo Resident Geologist Mineral Deposit files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
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:
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