Ontario Geological Survey
Permanent Link to this Record:
MDI42H03SE00020
| Record Name(s) | Cromarty Exploration DDH C6-3 - 1965 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Feb-27 |
| Date Last Modified | 2022-Oct-11 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Secondary Commodities: Silver
Township or Area: Lamarche
Latitude: 49° 0' 39.74" Longitude: -81° 3' 3.16"
UTM Zone: 17 Easting: 496279.37 Northing: 5428684.29 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42H03SE
Point Location Description: Drill collar in former claim P77162
Location Method: Based on Assessment
Access Description: The site is located approximately 5 km south of Cochrane via highway 11. The drill site is located approximately 1 km west of the highway.
1965: Cromarty Exploration Company Ltd. - 1 ddh (695 ft), assays. 1965: McIntyre Porcupine Mines Ltd. – airborne geophysics
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-1266 / 12 | 42H03SE0003 | 42H03SE0003 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate lava flow-unsubdivided | 1 | Andesite | Host |
|---|---|---|---|---|
| Intermediate lava flow-unsubdivided | 2 | Shear Zone | Footwall | |
| Feldspar Porphyry | 3 | Feldspar | Intrudes |
Jan 27, 2015 (A Wilson) - The drill log describes a heavily carbonatized intermediate metavolcanic rock intruded by numerous conformable feldspar porphyry dikes. Some silicification was observed near the base of the hole, below what was interpreted to be a narrow shear zone.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 3 | Graphite | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Pyrrhotite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - The drill log indicates disseminated sulphides below 353 feet. A shear zone at 353 ft contains graphite and pyrite for a width of 1 ft. The best assay returned 0.35% Cu and 0.02 oz/t Ag over 3 ft. Cu values diminished with depth.
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
File - Resident Geologist files T-6365
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Cochrane sheet, District of Cochrane, geological compilation series
Publication Number: P0372 Scale: 1:126,720 Date: 1997
Author: Bennett G., Brown D.D., George P.T.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological Compilation of the Timmins Area, Abitibi Greenstone Belt
Publication Number: P3379 Scale: 1:100,000 Date: 1998
Author: Ayer J.A., Trowell N.F.
Publisher Name:
Location:
Map - Geological Compilation: Brower, Duff, Fournier, Hanna, Lamarche, Little, Mann, McCart, Newmarket, Reaume, St. John and Tully Townships
Publication Number: P3391 Scale: 1:50,000 Date: 1999
Author: Barrie C.T.
Publisher Name: Ontario Geological Survey
Location:
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