Ontario Geological Survey
Permanent Link to this Record:
MDI42K01NW00004
| Record Name(s) | Nagagami River Alkalic Complex 1 - 1983, Algoma DH #5 - 1964 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1983-Dec-16 |
| Date Last Modified | 2023-Jan-17 |
| Created By | |
| Revised By |
Primary Commodities: Niobium, Cerium, Neodymium, Rare Earth Elements
Township or Area: Nagagami River Area
Latitude: 50° 10' 15.64" Longitude: -84° 21' 38.24"
UTM Zone: 16 Easting: 688472.862 Northing: 5560979.678 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42K01NW
Point Location Description: Collar location of DH #5 on Baseline 6.
Location Method: Conversion from MDI
Access Description: The comples is located 65km NW of Hearst and about 6.5km SW of the junction of the Nagagami and Otasawain rivers, lying 32km north of hte Canadian National rail line. Access to the area is by float-equipped aircraft and all-terrain vehicle; planes can land on Ping Lake to the east of the complex. (Study 43, p.4).
Algoma Ore Properties Division: 1961: Aeromagnetic survey; ground dip-needle survey (T-338) 1963: Aeromagnetic survey (T-343) 1964: Company obtained an E.L.O. for area of anomaly; line-cutting; ground mag survey; drilling (984.3m in 7 holes), assays, scintillometer testing of core; petrographic analyses (T-338, T-4267). 2022: Noble Mineral Exploration Inc. drilled 2 DDH totalling 1302 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 42K01NW0002, T-0338 | 20000005973 | 20000005973 |
Province: Superior
Geological Age: Late Precambrian Geochron. Age Ref.: STUDY 43, P.2
Dec 07, 2005 (D Draper) - The complex is unexposed at surface. Aeromagnetic surveys indicate the complex consists of two ring-shaped subcomplexes, with the southern cutting the northern, suggesting the south (#2) complex is younger than the north, larger (#1) complex. The north complex is approximately 13 km in diameter and is overlain by 143 - 200m of overburden and Paleozoic sediments. (Study 43, p.2, 6).
| Rock Type | Rank | Composition | Texture | Relationship | Syenite | 1 | Amphibole - Pyroxene Syenite | Host |
|---|---|---|---|---|
| Anorthosite | 2 | Anorthorsite | Host | |
| Carbonatite-Unsubdivided | 3 | Host |
Dec 07, 2005 (D Draper) - The dominant rock type is a silica-saturated, magnetite-bearing, amphibole-pyroxene syenite which varies from fine to coarse grained and locally displays a trachytoidal texture. A minor granite phase was also identified. (Study 43, p. 2, 14).
Dec 07, 2005 (D Draper) - Algoma drillhole #5-64 (vertical, to depth of 555ft), intersected syenodiorite and syenite starting at 473 feet. One sample taken at 522ft from a zone of anorthosite assayed at 0.1% NB2O5; other samples taken from 473 - 555ft ranged from 0.02 to 0.05%. (AF T-338; T-4267, hand-written log of hole #5).
Jan 17, 2023 (Therese Pettigrew) - DDH NG-22-02 returned 0.554% TREO and 0.098% Nd2O3 over 61 m from 373 to 434 m), including 0.665% TREO and 0.118% Nd2O3 over 17 m (Noble Mineral press release Jan 17, 2023). DDH NG-22-02 returned assays of up to 0.36% Ce2O3, 0.12% Nd2O3, and 0.05% Nb (Noble Mineral press release Dec 5, 2022).
File - Resident Geologist files T-0343, T-4267
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Pagwa River-Calstock sheet, districts of Cochrane and Algoma, geological compilation series
Publication Number: P0552 Scale: 1:126,720 Date: 1997
Author: Innes D.G.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Geology of carbonatite-alkalic rock complexes in Ontario: Nagagami River alkalic rock complex, District of Cochrane
Publication Number: S043 Date: 1988
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Map - Caramat-Pagwa River sheet, geological compilation series, Algoma, Cochrane and Thunder Bay districts
Publication Number: M2202 Scale: 1:253,440 Date: 1971
Author: Innes D.G., Ayres L.D.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Map - Aeromagnetic maps of carbonatite-alkalic complexes in Ontario
Publication Number: P0452-REV Scale: 1:4,224,000 Date: 1997
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
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