Ontario Geological Survey
Permanent Link to this Record:
MDI52A03SW00007
| Record Name(s) | Cloud Bay Cu-Ni - 1935, B. Renshaw - 1935 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1979-Jul-31 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Nickel
Township or Area: Crooks
Latitude: 48° 4' 41.79" Longitude: -89° 26' 8.4"
UTM Zone: 16 Easting: 318591 Northing: 5327869.99 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A03SW
Point Location Description: Map in AFRI 52A04SW0053
Location Method: Conversion from MDI
Pre-1935: discovered by B. Renshaw. 1969: Caprive Oil & Gas Company Ltd. conducted a mag survey and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.2627 | 52A04SW0053 | 52A04SW0053 |
Province: Southern
Formation Group: Animikie Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Olivine Gabbro | 1 | Olivine Diabase Dyke | Host |
|---|
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 4 | Pentlandite | Economic | Ore |
Feb 28, 2018 (Therese Pettigrew) - About a quarter mile from the east tip of the peninsula, sulphide mineralization was found near the south side in the diabase in two pits 170 feet apart. The mineralization consists of pyrite, pyrrhotite, chalcopyrite and pentlandite sparsely disseminated throughout the diabase. Three grab samples from the two pits assayed 0.19-0.36% Cu and 0.14-0.19% Ni (AFRI 52A04SW0053). Disseminated copper-nickel sulphide mineralization in the form of pyrrhotite with some chalcopyrite occurs here in a relatively coarse and altered phase of the lustre-mottled, ophitically textured, olivine diabase dyke, at its intersection with a minor cross-shear, about 25 cm wide. Width of the mineralized zone is about 3 m. A grab sample collected by J. Geul assayed 0.04% Cu and 0.08% Ni (Geul, 1973).
MonoMap - Geology of Crooks Township, Jarvis and Prince locations, and offshore islands, District of Thunder Bay
Publication Number: R102 Scale: Date: 1973
Author: Geul J.J.C.
Publisher Name: Ontario Division of Mines
Location:
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