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Ontario Geological Survey
Permanent Link to this Record:
MDI42D15SE00012
| Record Name(s) | D.A. Michano Sr. Occurrence - 1983, Marathon Project - 1983 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Mar-31 |
| Date Last Modified | 2022-May-12 |
| Created By | |
| Revised By |
Primary Commodities: Sulphur/Pyrite
Secondary Commodities: Copper, Silver
Township or Area: Walsh
Latitude: 48° 49' 11.34" Longitude: -86° 40' 52.36"
UTM Zone: 16 Easting: 523401 Northing: 5407475 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D15SE
Point Location Description: Pit
Location Method: Field Visit
Access Description: The occurrence is located 27 km east of Terrace Bay in Walsh Township just north of Highway 17 on the Dead Horse Creek (Camp 5) Road (claim map G-636). Access is via Highway 17 and then north along the Dead Horse Creek (Camp 5) Road for approximately 600 m to a cleared and blasted area on the west side of the road. Several pits are also located on the east side of Dead Horse road.
1983: Prospecting; D.A. Michano. The sulphide mineralization comprising the occurrence was discovered at this time. Property examination and lithogeochemical sampling; OGS Resident Geologist staff. 1985: Mechanical surface work; D.A. Michano. 1988: Geological mapping, ground geophysical surveys (EM, MAG and I.P.), trenching and sampling; Belmoral Mines Ltd. 1989: Diamond drilling (5 holes totalling 552 m) was completed on adjoining claims; Belmoral Mines Ltd. Property examination and lithogeochemical sampling; OGS Resident geologist staff. 2011: Canadian International Minerals carried out prospecting and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.12535 | 42D15NE0015 | 42D15NE0015 |
| 31 | 42D15NE0019 | 42D15NE0019 |
| 2.11703 | 42D15NE0021 | 42D15NE0021 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Archean
Dec 07, 2005 (D McKay) - The property is underlain by early Precambrian basic to acid volcanics interbedded with greywacke and arkose which have been intruded by granite, quartz feldspar porphyries and quartz veins. the general strike of the formation is about north 50 degrees west and the dip varies from vertical to steeply to the south. The showing consists of sheared basic volcanics, biotite altered sediments and pyrite-pyrrhotite-graphite iron formation. Quartz veins and sweats with minor sulphides on fractures are common in the shear.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Sheared | Near |
|---|---|---|---|---|
| Ironstone-unsubdivided | 2 | Sheared | Host | |
| Vein | 3 | Quartz | Near |
Dec 07, 2005 (D McKay) - The showing consists of sheared basic volcanics, biotite altered sediments and pyrite-pyrrhotite-graphite iron formation. Quartz veins and sweats with minor sulphides on fractures are common in the shear.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Ore | ||||
| Quartz | Alteration | Hydrothermal | 1 | Unknown | Veins |
Dec 07, 2005 (D McKay) - A sheared iron formation striking from 283 to 310 degrees and dipping 82 degrees NE was observed at the Michano occurrence. Pyrite and pyrrhotite are present as well as a carbonaceous/graphitic metasedimentary rock. The iron formation and chemical metasedimentary rocks appear to be hosted by mafic metavolcanic rocks. Several pits on the east side of the Dead Horse road were observed up to 1 m by 2 m in size. There is evidence of quartz veining. On the west side of the Dead Horse road a shear zone striking 80 degrees and dipping 78 degrees S to vertical was observed hosted by phyllitic metasedimentary rocks and mafic metavolcanic rocks. Bull-white quartz veins and boudins up to 70 cm wide were observed. Minor chlorite was present as seams within the veins. Grab samples collected from the occurrence in 1983 and 1989 by OGS Resident Geologist staff returned assay values which varied from nil to 0.004 opt Au, nil to 0.41 opt Ag, 325 ppm Cu and 170 ppm Ni.
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: 609-611 Date: 1996
Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.
Publisher Name: Ontario Geological Survey
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:
File - Resident Geologist files
Publication Number: Min Dep Date: 1996
Author:
Publisher Name:
Location: Thunder Bay RGP
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office