Ontario Geological Survey
Permanent Link to this Record:
MDI52I11SE00004
| Record Name(s) | Fletcher Lake West - 1991, Fletcher Lake Occurrence - 1957 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Mar-26 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Nickel
Township or Area: Caribou River Area
Latitude: 50° 33' 45.98" Longitude: -89° 0' 19.57"
UTM Zone: 16 Easting: 357966.51 Northing: 5603125.26 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52I10SW, 52I11SE
Point Location Description: Precise
Location Method: Conversion from MDI
1957: Kennco Explorations Ltd. conducted ground EM, magnetic, geochemical and geological surveys and exploration trenching. 1988: Sumtra Diversified Inc. conducted a 5 DDH program totalling 534.06 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52I11SE0011 | 52I11NE0006 | 52I11NE0006 |
| 2.12164 | 52I11SE0003 | 52I11SE0003 |
| 13 | 52I11SE0001 | 52I11SE0001 |
| Rock Type | Rank | Composition | Texture | Relationship | Amphibolite | 1 | Garnet | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Host | ||
| Tonalite | 3 | Adjacent |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Chalcopyrite | Economic | Ore | ||||
| 10 | Pyrite | Economic | Ore | ||||
| 15 | Pyrrhotite | Economic | Ore |
Dec 03, 2014 (Therese Pettigrew) - Kennoco Explorations examined 10 claims centered on Fletcher Lake in 1957. Interest was centered on a zone of massive to disseminated pyrrhotite, pyrite and magnetite mineralization approximately ½ mile west of the northern end of Fletcher Lake. During 1957, the company conducted ground EM, magnetic, geochemical and geological survey as and exploration trenching but no significant base or precious metal mineralization was found. The mineralized zone is 50 m wide and extends for over 600 m parallel to the strike of the metavolcanic rocks (approximately N80W) and the tonalite-metavolcanics contact. The host rock of the mineralization is amphibolite which varies from massive to schistose and contains up to 30% garnet. The mineralization occurs as lenses and varies from massive to disseminated pyrrhotite and pyrite (Sutcliffe, 1988).
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 600 | 60 |
MonoMap - Geology of the Fletcher Lake area, District of Thunder Bay
Publication Number: R251 Scale: Date: 1988
Author: Sutcliffe R.H.
Publisher Name: Ontario Geological Survey
Location:
Map - Fletcher Lake, Thunder Bay District
Publication Number: M2485 Scale: 1:31,680 Date: 1987
Author: Sutcliffe R.H.
Publisher Name: Ontario Geological Survey
Location:
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