Ontario Geological Survey
Permanent Link to this Record:
MDI41I12NE00013
| Record Name(s) | Spanish River Magnetite - 1985 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jan-04 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | A Wilson |
Primary Commodities: Iron
Township or Area: Tofflemire
Latitude: 46° 40' 24" Longitude: -81° 42' 11.28"
UTM Zone: 17 Easting: 446219 Northing: 5169103.997 UTM Datum: NAD83
Resident Geologist District: Sudbury
NTS Grid: 41I12NE
Point Location Description: Precise
Location Method: Data Compilation
Province: Southern
Subprovince: Cobalt Basin
Supergroup: Huronian Supergroup
Formation Group: Cobalt Group
Geological Age: Paleoproterozoic Geochronological Age: 1838±95 Ma
| Rock Type | Rank | Composition | Texture | Relationship | Terrigenous-Clastic-Unsubdivided | 1 | Contains |
|---|---|---|---|---|
| Carbonatite-Unsubdivided | 2 | Host |
Sep 30, 2011 (A Wilson) - On the eastern shore of Spanish River is a narrow belt of thinly bedded and laminated siltstone and sandstone, massive blue-grey and pink fine-grained sandstone, and minor conglomerate. Some of the siltstone is calcareous. These sediments are thought to be a part of the Gowganda Formation. The magnetite is hosted within a narrow carbonate rich dike that is believed to be associated with the Spanish River Carbonatite.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | Economic | Ore |
Sep 30, 2011 (A Wilson) - One outcrop in this area contains clots and clasts of magnetite-calcite material. The host rock is very fine grained, dark grey and slightly calcareous and is cut by veinlets of magnetite, quartz and biotite.
| Rank | Classification |
|---|---|
| 1 | Carbonatite |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
Mono - Geology of Tofflemire, Venturi and Vernon townships, District of Sudbury
Publication Number: OFR5624 Scale: Date: 1986
Author: Marmont C.
Publisher Name: Ontario Geological Survey
Map - Geological series, Precambrian geology, Tofflemire, Venturi and Vernon townships, Sudbury District
Publication Number: P2960 Scale: 1:15,840 Date: 1986
Author: Marmont C.
Publisher Name: Ontario Geological Survey
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