Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52O03NW00035

Record: MDI52O03NW00035

General

Mineral Record Identification
Record Name(s)	FTM Zone - 9999, Fry Lake # 8 - 1990
Related Record Type	Simple
Related Record(s)
Record Status	Occurrence
Date Created	1990-Nov-28
Date Last Modified	2023-Aug-03
Created By
Revised By

Commodities

Primary Commodities: Gold

Secondary Commodities: Silver

Location

Township or Area: Fry Lake Area

Latitude: 51° 10' 54.95" Longitude: -91° 29' 5.35"

UTM Zone: 15 Easting: 605900.592 Northing: 5671147.729 UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 52O03NW

Point Location Description: Area that is 1.8 km WSW of mouth of creek that drains into SW bay of Rockmere Lake on map 2482.

Location Method: Data Compilation

Access Description: This occurrence is located about 93 km west-southwest of Pickle Lake and about 9.5 km east-northeast of the First Nation community of Slate Falls. The occurrence is 1.2 km north of North Bamaji Lake and about 300 m north of the west end of a small un-named lake, located about 900 m north of North Bamaji Lake. Access to the occurrence is by appropriately equipped aircraft to North Bamaji Lake, and then traverse north to the occurrence. The small lake north of North Bamaji Lake may be suitable for helicopter landing. The Ear Falls to Pickle Lake power corridor passes about 1 km south of the occurrence.

Exploration History

1971: Canadian Onex Mines Ltd. commissioned an airborne geophysical survey in the area of the FTM gold occurrence. They staked 16 claims and conducted a follow-up IP survey. 1981: R. Knappett staked 4 claims to cover the FTM gold occurrence which he optioned to D. Bell in 1983. Bell then dealt the claims to FTM Resources Inc. Bell commissioned airborne EM and Mag surveys over the claims and surrounding area. Bell also performed geological mapping on the 4 Knappett claims. 1985: Norontex Exploration Ltd. conducted a rock geochemical survey on the 4 Knappett claims for First General Mine Management and Gold Corporation. 1988: Gold Fields Canadian Mining Ltd. commissioned airborne Mag and Em surveys and performed humus and biogeochemistry surveys over a large claim group which included the area of the Ftm gold occurrence. The post-1988 exploration history of the area is summarized by Nelson (2002).

Assessment Work on File

Assessment Work on File
Office File Number	Online Assessment File Identifier	Online Assessment File Directory
2.27635	52O03NW2005	52O03NW2005

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Meen-Dempster

Geological Age: Archean

Geology Comments

Jan 16, 2007 (B Nelson) - Gold mineralization occurs in two modes at the FTM occurrence. The first is in a smokey-grey, qtz-tourmaline-sulphide vein hosted in a north-trending, brittle, shear zone cutting mafic metavolcanics. The second mode of occurrence is in qtz-tourmaline stringers and veins cutting the quartz-feldspar porphyries. The quartz-tourmaline-sulphide vein is exposed in a shallow trench over a length of 10 m. The vein is up to 30 cm wide and is hosted by a brittle shear zone marked by a well defined cleavage in the mafic metavolcanics. The vein and shear zone cut a quartz-feldspar porphyry at the south end of the trench, but do not extend into the porphyry 2 m north of the trench. The vein and the cleavage strike 350 degrees and dip 73 degrees east. The contact between the porphyry and the mafic metavolcanics at the south end of the trench is offset 30 cm, in a right-handed manner, by the shear zone. The second mode of gold mineralization at the FTM gold occurrence is associated with qtz-tourmaline stringers and veins in the qtz-feldspar porphyries. The porphyries exhibit an 80 degree foliation that dips 73 degrees north. The stringers and veins follow generally NE to SE trending fractures and shear in the porphyries. These stringers and veins have widths up to 15 cm, but average less than 1 cm in width. A number of the stringers and veins interconnect to form a stockwork. Trace to 1% pyrite is found in the porphyry next to the quartz-tourmaline stringers and veins. A description of the general area geology is provided in MDI52O04NE00019.

Lithology

Lithology Data
Rock Type	Rank	Composition	Texture	Relationship
Mafic lava flow-unsubdivided	1		Shear Zone	Host
Quartz-Feldspar Porphyry	2	Quartz-Feldspar Porphyry	Shear Zone	Host

Mineralization

Mineralization and Alteration
Rank	Mineral Name	Class	Economic Mineral Type
1	Pyrite	Economic	Ore
2	Chalcopyrite	Economic	Ore
3	Sphalerite	Economic	Ore
4	Galena	Economic	Ore

Mineralization Comments

Dec 07, 2005 (B Nelson) - The sulphides in the quartz-tourmaline-sulphide vein are principally py. Traces of cpy, gn and sph have all been observed in the vein. Samples from the north-trending quartz-tourmaline-sulphide vein have assayed up to 4.34 oz/ton Au and 4.93 oz/ton Ag. Samples from the quartz tourmaline stringers and veins have assayed greater than 10000ppb Au. SL Staff Geologist Results from 1990 are as follows: From the quartz-tourmaline-sulphide vein: GWS-90-89: trace py, 41 ppb Au, nil Ag. GWS-90-90: trace py, 548 ppb Au, nil Ag. GWS-90-91: trace py, cpy, 33394 ppb Au, 1.21oz/t Ag. GWS-90-92: trace py, cpy, 76837 ppb Au, 2.54 oz/ton Ag. From grabs of quartz-tourmaline stringer and vein mineralization: GWS-90-93: mylonitized qfp; 274 ppb Au, nil Ag. GWS-90-94: Mylonitized qfp cut by qtz-tour vein; 205 ppb Au, nil Ag. GWS-90-95: mylonitized qfp with qtz-tour vein on fractured surface; 363 ppb Au, nil Ag. GWS-90-96: qtz-tour vein; 194 ppb Au, nil Ag. GWS-90-97: qtz-tour vein in qfp; 18308 ppb Au, 0.42 oz/ton Ag.

Alteration Comments

Dec 07, 2005 (B Nelson) - None observed.

Mineral Record Details

Classification
Rank	Classification
1	Vein (Polymetallic)

Characteristics
Rank	Characteristic
1	Vein

References

Map - Cat River-Kawinogans Lake area, District of Kenora (Patricia Portion), Ontario

Publication Number: ARM44F Scale: 1:126,720 Date: 1997

Author: Harding W.D.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Geology of the Cat River-Kawinogans Lake area

Publication Number: ARV44-06.002 Date: 1997

Author: Harding W.D.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Cat Lake-Pickle Lake, geological compilation series, Kenora and Thunder Bay districts

Publication Number: M2218 Scale: 1:253,440 Date: 1976

Author: Sage R.P., Breaks F.W., Troup W.R.

Publisher Name: Ontario Division of Mines

Location:

MonoMap - Geology of the Cat Lake-Pickle Lake area, districts of Kenora and Thunder Bay

Publication Number: R207 Date: 1982

Author: Sage R.P., Breaks F.W.