Ontario Geological Survey
Permanent Link to this Record:
MDI42C02SE00128
| Record Name(s) | Morrison et al. Zone A - 1961 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1999-Jan-14 |
| Date Last Modified | 2023-Jun-09 |
| Created By | |
| Revised By |
Primary Commodities: Niobium
Township or Area: McMurray
Latitude: 48° 0' 14.34" Longitude: -84° 40' 6.15"
UTM Zone: 16 Easting: 673910.35 Northing: 5319373.6 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C02SE
Point Location Description: Site A map 2006
Location Method: Other Literature
Access Description: The sit lies on the north side of the creek that feeds into the north end of Blasko Lake. Access to the area is via the Firesand Creek Road, south from highway 101 for a distance of approximately 1 km. An overland travers from this point can be made to Blasko Lake.
Claims were staked and worked by N. and R. Morrison, F. Krimpotich and W. Jarvis between 1958 and 1959. Work consisted of prospecting and trenching.
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Geological Age: Mesoproterozoic Geochronological Age: 1078 MA Geochron. Age Ref.: GEOLOGY OF ONTARIO P. 699
Dec 07, 2005 (A Wilson) - The complex intrudes Archean rocks of the Wawa subprovince and has been emplaced along faults associated with the Kapuskasing Structural Zone. The complex consists of sovite, silicocarbonatite, ijolite and feruginous rauhaugite. The complex is zoned with sovite and silicocarbonatite at the periphery and rauhaugite in the core. Ijolite occurs as blocks metasomatized by fenitizing fluids in the sovite rim of the complex. Lamprophyre dikes with associated iron carbonate and sodium amphibole alteration are common in the area near the complex.
| Rock Type | Rank | Composition | Texture | Relationship | Ferro-Carbonatite | 1 | Ferruginous Sovite | Host |
|---|
Dec 07, 2005 (A Wilson) - The rock has been described as being a crumbly calcite carbonatite. From the site location, and mapping by R. P. Sage it appears as if the occurrence is possibly hosted in an altered carbonate xenolith within the external supracrusal rocks. No good descriptions of the occurrence are available. Carbonatite is reportedly exposed across a 20-foot width.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrochlore | Economic | Ore |
Dec 07, 2005 (A Wilson) - Small octahedra of pyrochlore were reported in outcrop. Assays up to 0.29% Nb2O5 have been obtained across a 20-foot width.
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 1078 MA | GEOLOGY OF ONTARIO P. 699 |
Map - Firesand River area, District of Algoma
Publication Number: M2006 Scale: 1:15,840 Date: 1997
Author: Parsons G.E.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Niobium-bearing complexes east of Lake Superior
Publication Number: R003 Page: 31-32 Date: 1997
Author: Parsons G.E.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological series, Precambrian geology of McMurray Township, Wawa area, Algoma District
Publication Number: P2441 Scale: 1:15,840 Date: 1982
Author: Sage R.P., Sawitzky E., Turner J., Leeselleur P., Sagle E.
Publisher Name: Ontario Geological Survey
Location:
Mono - Geology of carbonatite-alkalic rock complexes in Ontario: Firesand River carbonatite complex, District of Algoma
Publication Number: S047 Page: 35-36 Date: 1988
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
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