Ontario Geological Survey
Permanent Link to this Record:
MDI42D15SE00026
| Record Name(s) | No Name Occurrence - 1982 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1997-Feb-13 |
| Date Last Modified | 2022-May-09 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Lead, Silver
Secondary Commodities: Gold, Sulphur/Pyrite
Township or Area: Walsh
Latitude: 48° 49' 31.79" Longitude: -86° 41' 13.78"
UTM Zone: 16 Easting: 522961.69 Northing: 5408104.7 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42D15SE
Point Location Description: Pit/shaft
Location Method: Field Visit
Access Description: The occurrence is located in Walsh Township approximately 0.8 km north of Highway 17 on the west side of Deadhorse Creek (claim map G-636). The occurrence is accessible by travelling north along an old claim line from the gravel road on the west side of Deadhorse Creek.
1968: Halren Mines Ltd. carried out an EM survey. 1980s: Trenching and sampling; J. Halonen(?). 1983: Property examination and lithogeochemical sampling; OGS Resident Geologist staff. 1987: Prospecting and sampling; M. Joa and R. Walton. Property examination and lithogeochemical sampling; OGS Resident geologist staff.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.2416 | 42D15NE0055 | 42D15NE0055 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Archean
Dec 07, 2005 (D McKay) - A quartz vein consisting of massive white bull quartz with sugary white quartz on its margins outcrops on a rock knob on the south side of a large hill. The host rock is sheared mafic metavolcanic and intermediate to mafic tuff. The metavolcanic rocks strike N60 degrees E and dip vertically. The host rocks are well mineralized with pyrite near the contacts of the host vein. A large open pit or shaft about 3 m by 3.6 m by 4.5 m deep has been sunk on the vein which is about 9 m wide and strikes approximately north with a vertical dip. The pit or shaft contains a great deal of water at the bottom so that the true depth of the excavation could not be determined.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Sheared | Host | |
| Intermediate lava flow-unsubdivided | 3 | Sheared | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Galena | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Quartz | Alteration | Hydrothermal | 1 | Unknown | Veins |
Dec 07, 2005 (D McKay) - The quartz on the dump is mineralized with pyrite, chalcopyrite and galena. Grab samples collected from the occurrence in 1983 and 1987 by OGS Resident Geologist staff returned assay values which varied from <0.01 to 0.01 opt Au, 0.34 to 2.35 opt Ag, 240 to 3600 ppm Cu, 680 to 5640 ppm Pb and <10 to 24 ppm Zn.
| Rank | Classification |
|---|---|
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
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 - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.
Publication Number: OFR5951 Page: 615-616 Date: 1996
Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.
Publisher Name: Ontario Geological Survey
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:
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