Ontario Geological Survey
Permanent Link to this Record:
MDI42A06NW00185
| Record Name(s) | Delwood Porcupine Mariposite Zone - 1938, R. Collins Trench 1 - 1992 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2002-Nov-01 |
| Date Last Modified | 2023-Feb-28 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Deloro
Latitude: 48° 25' 11.13" Longitude: -81° 15' 21.19"
UTM Zone: 17 Easting: 481067.365 Northing: 5362988.058 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A06NW
Point Location Description: Trench 1 excavated by R. Collins in 1992 on Claim P.1182859.
Location Method: Based on Assessment
Access Description: Access is by means of the Buffalo Ankerite mine road that leads south off of the back road between Timmins and South Porcupine. South of the community at the Buffalo Ankerite, The Mackay Lake gravel road lead south. About 4.4 km south is the road leading to the Faymar mine. About 1.5 km along the Faymar mine road, bush trails lead north to the area of the occurrence.
1936 Delwood Porcupine Gold Mines Limited reported a 20 ft. deep pit was sunk on a well mineralized quartz breccia that yielded values up to $30 per ton. Several other veins we located in the area as well as a float that reportedly contained a plentiful scattering of visible gold. Prospecting, trenching, blasting, shaft sinking, diamond drilling and sampling reportedly followed. 18 0f 20 drill holes tested a 400 ft. long, 2 to 6 ft. wide iron formation to the southeast of Boyd Lake. Intersections up to $18 per ton across 5 ft. were reported, but follow-up drilling by H.B. Hatch failed to substantiate the intersection, mineralization or reported silicification. Another report of high-grade gold is mentioned in a 1938 letter by M.E. Scott to M.A. Walton of Sylvanite Gold Mines Ltd. Also reported is a east-west trending mariposite zone in the southwest part of the property. No gold was reported from this zone. 1981 Vatco Exploration Inc. relocated the old workings, conducted linecutting, VLF-EM, magnetometer and geological surveys, prospecting and sampling. Prospecting of the mariposite zone did not detect gold except in 2 samples. Other samples in the area returned only background values except for 2 samples, one that returned 0.01 opt Au and the other that returned 0.03 opt Au. In 1983, Vatco completed basal till sampling and B-horizon soil sampling on their claims. 1984 Legion Resource Ltd. held the Vatco claims and completed a VLF-EM survey. 1991 R. Collins staked claims covering the former Vatco property. In 1992 R. Collins obtained funding under the OMIP program and completed linecutting, prospecting, geophysical and geological surveys and stripping/washing/mapping and sampling of several areas of interests. Trenches 1 through 6 exposed the Mariposite Zone.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2530, 2.4241 | 42A06NE0419 | 42A06NE0419 |
| T-2647, 2.7636 | 42A06NE0457 | 42A06NE0457 |
| T-3624, OM92-070 | 42A06NE0018 | 42A06NE0018 |
| 2.6755, T-2530 | 42A06NE0463 | 42A06NE0463 |
| 2.5931, T-2530 | 42A06NE0407 | 42A06NE0407 |
| 2.15197, T-3624 | 42A06NE8900 | 42A06NE8900 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Tectonic Assemblage: Deloro
Geological Age: Archean
Dec 06, 2006 (G Seim) - The Delwood Porcupine Mariposite Zone is contained within generally west striking, north dipping calc-alkaline mafic metavolcanic flows of the Deloro Group. The Mariposite zone is up to 100 ft. in width and has been traced for over 1100 ft. Work by Erie Canadian Mines Ltd.in 1938 indicates that this zone is over 1 km in length and is the extension of the MacLaren Porcupine Prospect. The Mariposite zone was exposed in 6 trenches by R. Collins in 1992. The zone is described as a 100 ft. wide, lenticular, fine-grained, talcose, carbonated, siliceous, oxidized sheared carbonate zone. The zone strikes west and dips variably northward. Both the hanging wall and the footwal of the zone are commonly foliated and associated with a fuchsite-rich, quartz stockwork environment.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| Carbonate | Alteration | Carbonatization | 1 | Extreme | Replacement | ||
| Fuchsite | Alteration | Carbonatization | 2 | Strong | Replacement |
Dec 06, 2006 (G Seim) - Sampling by R. Collins Exploration indicates that the mariposite zone is consistently anomalous in gold. Higher values are concentrated along the hanging wall and footwall contact. The highest value reported was 1.25 g/t Au.
File - Resident Geologist file T-762
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
MonoMap - Geology of Ogden, Deloro and Shaw townships, District of Cochrane
Publication Number: OFR5012 Page: 104 Date: 1997
Author: Carlson H.D.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 63 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
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 Timmins Resident Geologist District Office