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Ontario Geological Survey
Permanent Link to this Record:
MDI41J08SE00026
| Record Name(s) | Massey Black Granite - 1989, Sudbury Canadian Granite Inc. - 1989 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1991-Mar-19 |
| Date Last Modified | 2023-Aug-23 |
| Created By | |
| Revised By |
Primary Commodities: Gabbro
Township or Area: Tennyson
Latitude: 46° 20' 49.91" Longitude: -82° 11' 27.69"
UTM Zone: 17 Easting: 408355 Northing: 5133313.99 UTM Datum: NAD83
Resident Geologist District: Sudbury
NTS Grid: 41J08SE
Point Location Description: bulk sample location
Location Method: AMIS Site Visit
Access Description: Access to the deposit is obtained by the well maintained gravel highway 533. The deposit is found about 22 kilometres north on this highway from the intersection of highway 533 and highway 17 located in Massey.
1986-89: Sudbury Canadian Granite Inc. - mapping, DD-2-260 ft., petrography, sampling 1989: La Société de Gestion Maskours Inc. - DD-2-260 ft.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Tennyson SP001 / 13 | 41J08SW0004 | 41J08SW0004 |
| Tennyson SP002 / 2.12418 | 41I08SW0001 | 41I08SW0001 |
Province: Southern
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Gabbro | 1 | Gabbro | Is |
|---|---|---|---|---|
| Granodiorite | 2 | Biotite Granodiorite, Tonalite | Adjacent |
Apr 11, 2016 (A Wilson) - The gabbro is generally a homogeneous very dark bluish gray colour, very heavy and massive with crystal sizes ranging from 3mm. to 6mm. It consists of, on the basis of a cursory examination: 50% of a dark blue gray amphibole ,approximately 25% of a dark green translucent amphibole, occasional 15% plagioclase and 10% quartz forming a hard interlocking matrix. The larger outcrops of this rock tend to form hummocky ridges trending along the strike of major fracturing (110º and occasionally at right angles to this.) The gabbro is part of the Tennyson Sill which is one of the suites of rock that encompass the East Bull Lake intrusive suite. The tonalite is part of the Ramsey-Algoma Granitoid Suite
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore |
| Rank | Classification |
|---|---|
| 1 | Mafic-Ultramafic Intrusion |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
Map - Geological Compilation, East Bull Lake and Agnew Intrusions
Publication Number: P3596 Scale: 1:50,000 Date: 2011
Author: Easton R.M., Josey S.D., Murphy E.I., James R.S.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Sudbury Resident Geologist District Office