Ontario Geological Survey
Permanent Link to this Record:
MDI42D15SE00019
| Record Name(s) | Renshaw-Tripp Occurrence - 1949, Middleton Fe-Ti Occurrence - 1949, Little Pic Iron - 9999 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1980-Jan-04 |
| Date Last Modified | 2022-Nov-22 |
| Created By | |
| Revised By |
Primary Commodities: Titanium, Iron
Secondary Commodities: Magnetite
Township or Area: Walsh
Latitude: 48° 47' 52.11" Longitude: -86° 39' 4.72"
UTM Zone: 16 Easting: 525607 Northing: 5405038 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D15SE
Point Location Description: Trench
Location Method: Field Visit with GPS
Access Description: The showings occur in the southeast part of Walsh Township just north and south of Highway 17, northeast of Middleton station on the CPR Mainline (claim map G-636, Walsh Township). The occurrence is located on the north side of Highway 17, 1 km west of the Little Pic River.
1949: Showings discovered; prospectors B. Renshaw, E. Tripp and F. Gardner. 1950: Trenching and sampling; prospectors B. Renshaw, E. Tripp and F. Gardner. 1951: Geological survey; T. Page. 1954: Moneta Porcupine Mines Ltd. conducted geological and geophysical surveys and diamond drilling. 1975: D. Fairbairn staked the property and contracted an airborne geophysical survey. 1979: Placer Development Ltd. conducted geological mapping. 1983: Property examination and lithogeochemical sampling; OGS Resident Geologist staff. 1987: Property examination and lithogeochemical sampling; OGS Resident Geologist staff. 1992: Property examination and lithogeochemical sampling; OGS Resident Geologist staff. 1994: Sampling; C. Weibel. 2015: Staked by B.D. Gionet.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.2282 | 42D16SW0078 | 42D16SW0078 |
| 2.38721 | 20000003135 | 20000003135 |
| 13 | 42D15NE0067 | 42D15NE0067 |
| 2.3224 | 42D15NE0050 | 42D15NE0050 |
| 2.38768 | 20000003142 | 20000003142 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Archean
Dec 07, 2005 (D McKay) - Page (1951, assessment files) describes the local geology: Magnetite is a constituent mineral of the younger hornblende and in some places may be observed in the form of patches and ill defined vein forms near the contact with the earlier brown augite syenite. The most important mineralization has, however, taken place along fault fractures within the augite syenite. Two sets of fault fractures are apparent, one, a flat dipping (15 to 20 degrees) and the other more steeply inclined (40 to 70 degrees) dipping either to the east or west. A close association structurally was noted between the red pegmatite dikes and the steeply dipping magnetite veins. Whether or not these dikes may form a marker for the location of iron bearing veins is not known at present but their possible significance should be born in mind. Five occurrences of titaniferous magnetite veins were noted.
| Rock Type | Rank | Composition | Texture | Relationship | Syenite | 1 | Augite Syenite | Host |
|---|
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Ilmenite | Economic | Ore | ||||
| 2 | Magnetite | Economic | Ore | ||||
| 3 | Pyrite | Economic | Ore | ||||
| 7 | Chalcopyrite | Economic | Ore | ||||
| 8 | Pyrrhotite | Economic | Ore | ||||
| 4 | Olivine | Economic | Gangue | ||||
| 5 | Apatite | Economic | Gangue | ||||
| 6 | Biotite | Economic | Gangue |
Dec 07, 2005 (D McKay) - Walker (1967) notes: Segregation of pure ilmenite-magnetite are common in augite syenite as aggregated to disseminated grains. Shklanka (1968, p.412) reports: High grade zones up to 20 feet (6 m) in width yielded 7 assays which range from 33.19 to 45.17% Fe and 4.5 to 13.55% TI02. Walker (1967) suggests that the tonnage potential seems relatively small. In his report, Anderson (1951, assessment files) cites: It is apparent that the magnetic mineral in this ore contains high percentage of titanium, and as such would be unsuitable as an iron ore. The ratio of concentration is too high to be profitable. From 100 tons (90.7 tonnes) of ore milled, only 9 tons (8.16 tonnes) of concentrate would be recovered. A grab sample collected from the Renshaw-Tripp Fe-Ti zone by C. Weibel and submitted to the SH Resident Geologist (OGS) for analysis returned assay results of >5% TiO2, 52 ppm Cu, 14 ppm Ni, 65 ppm V, 651 ppm Zn, <3 ppb Au, <5ppb Pd and <10 ppb Pt.
Sep 16, 2015 (Therese Pettigrew) - Sulphide mineralization is confined to a rock type significantly different from the gabbro norm containing appreciably more olivine, apatite/ biotite and ilmenomagnetite. The presence of orthopyroxene is also suspect. The sulphides/ chalcopyrite and pyrrhotite are typically disseminated occurring interstitially to the silicates. Oxides of copper were occassionally observed. Visual estimates of copper rarely exceed 0.25 percent. Segregations of ilmenomagnetite which appear to be conformable in attitude occur within gabbros in the eastern part of the claim block. These segregations range in width from less than 1 meter to several tens of meters and have been traced for up to 100 meters along strike, Generally the ilmenomagnetite content is less than 25 percent but locally may reach 75 percent. A grab sample taken for assay returned the following results: Sample 55516: 400 ppb Au, 0.11% Cr, 0.08% Cu, 30 ppb Pd, 200 ppb Pt, 5.39% Ti, and 0.46% P (AFRO 2.3224). A bulk sample collected returned the following whole rock results: 43.56% Fe, 0.118% P, 0.42% Mn, 13.75% Si, 2.39% Al, 0.838% S, 8.97% Mg, 13.55% Ti (OFR5951).
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
Date: Sep 04, 2015
Geologist: Therese Pettigrew
Notes: Visited the site with M. Smyk, M. Puumala, D. Campbell, R. Cundari and M. Brunelle. Noted the strong magnetism of the outrcrop.
MonoMap - Geology of the Jackfish-Middleton area, District of Thunder Bay
Publication Number: R050 Page: 36 Date: 1997
Author: Walker J.W.R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District
Publication Number: M2232 Scale: 1:253,440 Date: 1973
Author: Carter M.W., McIlwaine W.H., Wisbey P.A.
Publisher Name: Ontario Division of Mines
Location:
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 412 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Jackfish-Middleton area, Thunder Bay District
Publication Number: M2107 Date: 1967
Author: Walker J.W.R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.
Publication Number: OFR5951 Page: 591-593 Date: 1996
Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.
Publisher Name: Ontario Geological Survey
Location:
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
Mono - Industrial Mineral Occurrences and Deposits in Northwest Ontario
Publication Number: OFR5889 Page: 114-117 Date: 1994
Author: Hinz P., Landry R.M.
Publisher Name: Ontario Geological Survey
Location:
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