Ontario Geological Survey
Permanent Link to this Record:
MDI42A06NE00033
| Record Name(s) | Philadelphia Mining Syndicate - 1911, Diplomat - 1990 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1990-Dec-31 |
| Date Last Modified | 2023-Mar-03 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Deloro
Latitude: 48° 26' 22.31" Longitude: -81° 12' 12.69"
UTM Zone: 17 Easting: 484947.418 Northing: 5365174.108 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A06NE
Point Location Description: Adit located 1420 m south and 30 m W of NE corner of Deloro Township.
Location Method: Conversion from MDI
Access Description: Origianly access was gained by traveling south along Stringer's Road south of South Porcupine for about 7 km. There a gravel road (now gated) leds west about 4 km to the Deloro-Shaw Township boundary. From the point where the gravel road crosses the township boundary, an old wagon road leads north to the adit area. In 2002, the Dome Mine tailings road provides access to the area of the adit.
In 1911,the Philidelphia Mining Syndicate excavated a shallow adit/ramp on what was interpreted as a quartz vein. The adit is about 100 ft. long and about 35 ft. deep. The deepest 30 ft. reportedly had an average assay valy of $20 per ton. In 1963 W.H. Hansen thoroughly chip sampled the workings and received a best value of .04 (units unknown) over 5 ft. The remaining samples detected no gold. 1966 Augdome Explorations, Limited held claim under option. The option was known as the Chevalier Option. DDH 66-7 tested the iron formation under the adit and returned an assay of 0.02 opt Au over 10.8 ft. from a quartz vein, not the iron formation. (the only information for this drill hole is on a drill hole plan map) 1981, Amax Minerals Exploration conducted geological mapping and sampling of the adit. The sampling returned an average of 0.025 opt Au. 1984, John L. Kirwin for Canamax Resources Inc. mapped the geology of 2 claims, one including the adit. He noted the adit to be filled with water. 1985 Diplomat Resources Inc. slashed, stripped, washed, and examined the area around the adit. The adit itself was dewatered, and sampled and mapped in detail. 1987 J.P. Sheridan (Diepdaume Mines Ltd.) completed a magnetometer survey over an area including the adit. In 1989, Diepdaume conducted VLF and Max-Min (HLEM) surveys. In 1990, geological mapping was completed.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-1978, 2.4330 | 42A06NW8408 | 42A06NW8408 |
| T-2662, 2.12925 | 42A06NE0430 | 42A06NE0430 |
| T-2708, 2.10457 | 42A06NE0357 | 42A06NE0357 |
| T-282, 19 | 42A06NE0333 | 42A06NE0333 |
| T-2966, 63.4725 | 42A06NE0442 | 42A06NE0442 |
| T-2817, 63.4117 | 42A06NW8492 | 42A06NW8492 |
| 2.15647, T-2662 | 42A06NE0016 | 42A06NE0016 |
| 2.4436, T-1978 | 42A06NE0417 | 42A06NE0417 |
| 2.7254, T-1978 | 42A06NE8905 | 42A06NE8905 |
| 25, T-1978 | 42A06NE8409 | 42A06NE8409 |
| 2.8154, T-2966 | 42A06NE0451 | 42A06NE0451 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Tectonic Assemblage: Deloro
Geological Age: Neoarchean
Dec 07, 2005 (G Seim) - The Iron formation upon which the Philidelphia Mining syndicate drove the adit occurs at the contact between mafic to intermediate metavolcanics to the south and medium- to coarse-grained felsic fragmentals to the north. A carbonate horizon occurs to the north of the felsic fragmentals. These rocks all form part of the top of the Deloro Assemblage rocks. The iron formation is described by Carson, H.D. (1967) as highly siliceous cherty iron formation.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic massive flow | 1 | Basalt | Massive Flows | Footwall |
|---|---|---|---|---|
| Sulphide Ironstone | 2 | Sulphide And Oxide Facies | Host | |
| Vein | 3 | Quartz | Host | |
| Mafic Tuff | 4 | Tuff To Tuffaceous Fragmental | Hanging Wall |
Dec 07, 2005 (G Seim) - From Report by K.A. Jensen in T-2966: (quote)The iron formation has a shallow dip to the north of about 20 degrees. The overlying metavolcanics are slightly carbonated and consists of tuff to tuffaceous fragmentals of volcanic origin and grades into a more massive flow. The underlying volcanics appear to be slightly carbonated massive flows. The carbonatization increases near the sheared volcanics (sediment?) at the beginning of the ramp. The iron formation consists of a siliceous sulphide facies with areas extremely rich in magnetite. The most striking feature is the near verticl east-west striking fracture filling quartz stringers and veins within the iron formation. At the beginning of the ramp and about 1/2way down the ramp a wide quartz vein was exposed. It is the opinion of the author that the underlying quartz vein in the metaolcanics is the feeder vein for those in the iron formation (unquote).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Pyrrhotite | Economic | Gangue | ||||
| Carbonate | Alteration | Carbonatization | 1 | Weak | Replacement |
Dec 07, 2005 (G Seim) - The most recent and extensive sampling of the adit was by K.A. Jensen as reported in assessment file T-2966. The best assay results reported are 0.180 opt Au over a 0.9 ft. chip sample of high sulphide (pyrite and pyrrhotite), 0.092 opt Au over a 3 ft. chip sample of pyrite-rich iron formation and 0.251 opt Au over 1.5 ft. accross a quartz vein on the floor of the ramp. All other value were less than 0.10 opt Au.
File - Resident Geologist file T-271
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Timmins data series, Deloro Township, District of Thunder Bay
Publication Number: P2079 Scale: 1:15,840 Date: 1981
Author: Sangster P.J., Maharaj D.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Ogden, Deloro and Shaw townships, District of Cochrane
Publication Number: OFR5012 Page: 100 Date: 1997
Author: Carlson H.D.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Deloro Township, District of Cochrane
Publication Number: P0342 Scale: 1:15,840 Date: 1997
Author: Carlson H.D.
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 Timmins Resident Geologist District Office