Ontario Geological Survey
Permanent Link to this Record:
MDI42E03SW00041
| Record Name(s) | North Gold Zone - 1984 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1997-Feb-28 |
| Date Last Modified | 2022-May-09 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Rope Lake Area
Latitude: 49° 0' 35.27" Longitude: -87° 15' 16.19"
UTM Zone: 16 Easting: 481389 Northing: 5428576 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42E03SW
Point Location Description: Rusty outcrop
Location Method: Data Compilation
Access Description: The occurrence is located approximately 200 metres north of the east end of Big Duck Lake, 27 km north of Schreiber (claim map G-617). The North Gold Zone is located on line 26E at 1+75N of the Corporation Falconbridge Copper grid. Easiest access is by aircraft from Pays Plat to Big Duck Lake. A drill trail leads from the Winston Lake Mine site to Big Duck Lake.
1983-1987: Geological, geophysical and geochemical surveys and diamond drilling; Corporation Falconbridge Copper. Most of this work was done in the surrounding area. The occurrence was probably discovered by Corporation Falconbridge Copper staff during this time. 1990: Ground geophysical survey (IP); Thesis work; D. Ritcey. 1993: Diamond drilling (10 holes); Metall Mining Corporation and Rusty Lake Resources. 1997: Battle Mountain Gold Corp. carried out total field magnetics surveys. 2012: Clearframe Solutions Corp. conducted magnetometer and VLF-EM surveys.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.7632 | 42E03SE8252 | 42E03SE8252 |
| 24 | 42E03SW0060 | 42E03SW0060 |
| 2.18691 | 42E03SE2001 | 42E03SE2001 |
| 2.53290 | 20000008278 | 20000008278 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Schreiber-Hemlo
Geological Age: Archean
Dec 07, 2005 (D McKay) - Schnieders et al. (1996) dexcribe the geology of the area as follows: The area is underlain by mafic metavolcanic flows and tuffs which have been intruded by quartz porphyry. Mafic intrusive rocks are also present and an east-west structure transects the area.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Flows And Tuffs | Host |
|---|---|---|---|---|
| Quartz Porphyry | 2 | sill | Near | |
| Vein | 3 | Quartz | Near | |
| Gabbroid-Unsubdivided | 4 | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore |
Dec 07, 2005 (D McKay) - Wells (1984, assessment files) described the occurrence as follows: the North Gold zone is a gold occurrence with disseminated pyrite in biotite-rich zones and mafic rocks. The host rock is a mafic tuff which is finely bedded. A rusty zone with 2 to 4% disseminated pyrite occurs at the contact with a quartz-eyed (3-5%) QFP sill. Although there is a cross-cutting quartz vein, the gold is concentrated in this tuff. Wells (1984, assessment files) stated a grab sample of the mineralization assayed 6320 ppb Au. Subsequent chip samples across the zone gave the following results: TBS 1477: 167 ppb Au over 1.2 m; TBS 1478: 924 ppb Au over 1.0 m; TBS 1479: 1670 ppb Au over 1.0 m; TBS 1480: 122 ppb Au over 1.2 m.
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: 841 Date: 1996
Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.
Publisher Name: Ontario Geological Survey
Location:
Map - Big Duck Lake area, District of Thunder Bay
Publication Number: M2023 Scale: 1:15,840 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Mineral deposits of the Big Duck Lake area, District of Thunder Bay
Publication Number: R027 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Dept. of Mines
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office