Ontario Geological Survey
Permanent Link to this Record:
MDI42G16SE00006
| Record Name(s) | Clay-Howells - 1974, Mattagami - 1958, Township Prospect - - 1971, Clay Township Deposit 1 - 1987 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1980-Aug-27 |
| Date Last Modified | 2023-May-26 |
| Created By | |
| Revised By |
Primary Commodities: Magnetite, Niobium, Rare Earth Elements, Yttrium, Cerium, Lanthanum
Secondary Commodities: Molybdenum, Tin, Zinc, Thorium, Manganese
Township or Area: Clay, Howells
Latitude: 49° 49' 10.61" Longitude: -82° 3' 10.37"
UTM Zone: 17 Easting: 424261.87 Northing: 5519106.72 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42G16SE
Point Location Description: No surface expression of occurrence. Location inferred from magnetic data and drilling
Location Method: Data Compilation
Access Description: A reservoir where a boat may be launched is approximately 130 km from Smooth Rock Falls, via Hwy 805 to Fraserdale where a gravel road leads NW to the dam site [on the Mattagami River]. The northern contact of the complex lies 10 km to the south of the boat landing (from Study 37, p.4). A small plane is able to land on the western branch of the Kapuskasing river mouth immediately adjacent to the [former] camp (T-565). The carbonatite zone lies on the west bank of the Kapuskasing River approximately 3.5 km south of where it joins the Mattagami River.
1954-Lundberg Explns. Ltd: AMAG, diamond drilling (15 vertical holes to 600ft reported) 1955-Algoma Ore Properties, Ltd.: Property visit/report 1958-Mattagami Mining Co. (Picklands Mather): ground mag, diamond drilling (4539m), claims patented 1958-Bewabik Minerals Limited: diamond drilling (827m). 2009-2011: Rare Earth Metals Inc. - AEM, AMAG, Assays, DD-18-5432 m, EM, Mag, Met, Pr, Samp
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.49582, T-6295 | 20000007676 | 20000007676 |
| T-0565 / 15 | 42G16SE8006 | 42G16SE8006 |
| 10, T-0565 | 42G16SE8001 | 42G16SE8001 |
Province: Kapuskasing Structural Zone
Geological Age: Late Precambrian Geochronological Age: 1072 MA RB/SR Geochron. Age Ref.: MP093, p.22
Feb 03, 2016 (D Draper) - Syenitic rocks of Clay-Howells alkalic complex appear to intrude a sequence of paragneisses and orthogneisses that have been regionally metamorphosed to upper amphibolite to granulite facies rank...characteristic of the Kapuskasing Subprovince. The complex [itself] is fresh and unmetamorphosed.
| Rock Type | Rank | Composition | Texture | Relationship | Ferro-Carbonatite | 1 | Magnetite-Rich | Host |
|---|---|---|---|---|
| Syenite | 2 | Syenite To Monzonite | Contains |
Feb 03, 2016 (D Draper) - A dike-like body of magnetite-rich carbonatite intrudes the syenitic rocks within the SE corner of the complex. Drilling indicates this body approaches to within 5m of surface, but does not outcrop. Syenitic rocks bordering the carbonatite have been altered and metasomatized and display granoblastic textures.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | Economic | Ore | ||||
| 2 | Pyrochlore | Economic | Ore | ||||
| 1 | Carbonate | Economic | Gangue | ||||
| 2 | Biotite | Economic | Gangue | ||||
| 3 | Aegirine | Economic | Gangue | ||||
| 4 | Apatite | Economic | Gangue |
Feb 03, 2016 (D Draper) - Within the main area of mineralization the carbonatite varies from 10 to 80% magnetite. Examination of polished sections identified the presence of ilmenite lamellae within the magnetite. Trace amounts of pyrite, chalcopyrite, pyrrhotite and marcasite are present and occur in close association with the magnetite. Spectrographic study indicated anomalous quantities of niobium, zinc, molybdenum and tin. Niobium in the mineral pyrochlore is the only anomalous element occurring as a recognizable mineral. // From analyses of 25 samples by OGS Geoscience Laboratories, Toronto, 1988 (ppm): Nb--over 2000; Zn--up to 4500; Sn--up to 930; Mo--up to 85; Y--up to 1000; Ce--up to 6500; La--up to 3000.
Nov 15, 2011 (A Wilson) - Results from the 2010 drilling include intersections up to 105.3 metres grading 57.83% Fe2O3, 0.694%TREO and 0.14% Nb2O5. Higher grade Rare Earth zones within the magnetite include 2.45% TREO over 4.9 metres. The average cumulative drilled widths of the magnetite zone, which appears to be represented as two main lenses, is approximately 67 metres. The amount of Heavy Rare Earths within the Total Rare Earths varies from 5% to 20% with an average of 10%. Significant assays from the Rare Earth Metals drilling program included: 0.450% total rare earth oxides (TREO) over 142.5 m, including 0.230% TREO over 5.9 m, and 1.1010% TREO over 10m in CH-01. Other significant assays include: 0.660 %TREO over 19.4 m, including 1.050% TREO over 4.2 m; 1.20 % TREO over 13.9 m including 2.120 % TREO over 3.9 m in CH-2; and 0.850% TREO over 35 m, including 2.06 % TREO over 6.5 m; and 0.54 % TREO over 27 m in CH-17.
| Rank | Classification |
|---|---|
| 1 | Replacement |
| Rank | Characteristic |
|---|---|
| 1 | Podiform |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Tabular | 1067 | 91 | 225 | 60 |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Clay-Howells Deposit | 2011 | Inferred Mineral Resource | 8477000 | Rare Earth Metals NI 43-101 report, p. 3 | 0.661% LREO, 0.071% HREO, 0.732% TREO, 44.15% Fe2O3, 0.13% Nb2O5%, 2.20 MnO% and 0.07% ThO2% | |
| Clay-Howells | 1955 | Unclassified | 10000000 | T-0565, S.A. Ferguson Rept, June 18, 1955; OGS Study 37, p.39 | grade data from milling tests of small sample only | Iron 70 Percent |
Book - Canadian Mines Handbook 1960, p156
Publication Number: CMH 1960 Page: 156 Date: 1960
Author: Northern Miner Press
Publisher Name:
Location: Timmins RGO
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:
Map - Geological series, Clay-Howells complex, District of Cochrane
Publication Number: P2239 Scale: 1:15,840 Date: 1979
Author: Sage R.P., Wright W., Wilkinson S.
Publisher Name: Ontario Geological Survey
Location:
Publication - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 265 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
Mono - Geology of carbonatite-alkalic rock complexes in Ontario: Clay-Howells alkalic rock complex, District of Cochrane
Publication Number: S037 Page: Chart A, Fig 3 Date: 1988
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Map - Little Long Rapids sheet, District of Cochrane, geological compilation series
Publication Number: P0396 Scale: 1:126,720 Date: 1997
Author: Bennett G., Brown D.D., George P.T.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Operation Kapuskasing
Publication Number: MP010 Page: 68-70 Date: 1967
Author: Bennett G., Brown D.D., George P.T., Leahy E.J., Guillet G.R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 110 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Columbium (niobium) deposits of Ontario
Publication Number: MDC014 Page: 32-33 Date: 1971
Author: Ferguson S.A.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Industrial minerals of northern Ontario
Publication Number: MDC026 Page: 118 Date: 1985
Author: Vos M.A., Abolins T., McKnight R.L.W., Smith V.
Publisher Name: Ontario Geological Survey
Location:
Article - A centrifuged model study of the tectonic development of Archean greenstone belts
Publication Number: MP093.068 Page: 16-23 Date: 1997
Author: Dixon J.M., Summers J.M.
Publisher Name: Ontario Geological Survey
Location:
Mono - Geology of the Clay-Howells alkalic rock complex
Publication Number: OFR5402 Date: 1984
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Mono - Geology of carbonatite-alkalic rock complexes in Ontario: Clay-Howells alkalic rock complex, District of Cochrane
Publication Number: S037 Date: 1988
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Publication - Rare Earth Minerals Ltd.
Publication Number: clippings Date: 2009
Author:
Publisher Name:
Location: Timmins RGO
Publication - Technical report on the Clay-Howells Fe-REE Project, Ontario, 79p.
Publication Number: NI 43-101 Date: 2011
Author: P. Daigle
Publisher Name:
Location: Timmins RGO
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