Ontario Geological Survey
Permanent Link to this Record:
MDI31L05SE00008
| Record Name(s) | Burritt Island - 1971, Burritt Island Complex - 1971 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1985-Nov-26 |
| Date Last Modified | 2022-May-12 |
| Created By | |
| Revised By |
Primary Commodities: Uranium
Latitude: 46° 17' 35.04" Longitude: -79° 44' 13.86"
UTM Zone: 17 Easting: 597265.001 Northing: 5127384.998 UTM Datum: NAD83
Resident Geologist District: Sudbury
NTS Grid: 31L05SE
Point Location Description: approximate
Location Method: Other Literature
Province: Grenville
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Carbonatite-Unsubdivided | 1 | Brecciated | Host |
|---|---|---|---|---|
| Fenite | 2 | Alkaline Intrusive | Adjacent | |
| Syenitoid-Unsubdivided | 3 | Adjacent |
Jun 04, 2009 (A Wilson) - The Burritt Island Complex is exposed only on Burritt Island. Most of the island is underlain by shattered, slightly fenitized granitic rocks. Towards the southern end, these rocks grade through quartz fenite into aegirine-potassic feldspar fenite. On the eastern side of the island, the aegirine-potassic feldspar fenite contains mafic dikes, rich in aegirine, with some carbonate and altered nepheline. A carbonatite intrusion can be traced for about 200 ft along the shore and up to 50 ft inland. Lamprophyre dikes are present in the fenites on the northern part of the island.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 2 | Pyrochlore | Economic | Ore | ||||
| 1 | Magnetite | Economic | Gangue |
Jun 04, 2009 (A Wilson) - A few fine- to medium-grained pyrochlore crystals are disseminated in the carbonatite. The crystals are slightly radioactive when tested with a geiger counter, but the occurrence appears to be too small to be of economic interest.
| Rank | Classification |
|---|---|
| 1 | Carbonatite |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
MonoMap - Geology of the North Bay area, districts of Nipissing and Parry Sound
Publication Number: R094 Page: 51, 81 Date: 1971
Author: Lumbers S.B.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
MonoMap - Columbium (niobium) deposits of Ontario
Publication Number: MDC014 Page: 50 Date: 1971
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Folio - Lake Nipissing islands and North Himsworth Township, districts of Nipissing and Parry Sound
Publication Number: GDIF423 Date: 1997
Author: Sudbury RGO
Publisher Name: Ontario Geological Survey
Location:
Book - Sudbury Resident Geologist Mineral Deposit Inventory Files Lake Nippissing
Publication Number: Date: 1996
Author:
Publisher Name:
Location:
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