Ontario Geological Survey
Permanent Link to this Record:
MDI42F16NE00002
| Record Name(s) | Mattagami Lake DH AF-84-1 - 1984 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Feb-26 |
| Date Last Modified | 2022-Nov-02 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Limestone Rapids Area
Latitude: 49° 59' 13" Longitude: -84° 8' 49.66"
UTM Zone: 16 Easting: 704497.71 Northing: 5541079.93 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42F16NE
Point Location Description: Collar location of drillhole AF-84-1, south of Heron Lake
Location Method: Conversion from MDI
Access Description: All weather road 663 runs north from its junction with Highway 11 about 20 miles west of Hearst. Hole collar is approximately a mile north of the Rogers Twp. north boundary and a half mile east of 663.
1981-84: Mattagami Lake Exploration Limited - Staking, mag, HLEM and IP surveys, DD-1-696 ft, assays
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2507/ 2.4804 | 42F16NW8312 | 42F16NW8312 |
Province: Superior
Subprovince: Quetico
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Terrigenous-Clastic-Unsubdivided | 1 | Felsic Metasediments | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Near | ||
| Schist-Unsubdivided | 3 | Quartz-Sericite | Near |
Mar 25, 2014 (D Draper) - Drillhole AF-84-1drilled 360 º, dipping 57º to depth of 696ft. Hole cut 328ft of overburden and Paleozoic limestone, encountering schist at 345ft and alternating units of silicious to mafic metasediments and metatuff to end of hole.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Pyrrhotite | Economic | Gangue | ||||
| 3 | Chalcopyrite | Economic | Gangue |
Mar 25, 2014 (D Draper) - A 3-foot sample of the metasediments (525 - 528ft) returned 0.052 oz/t Au; 3-foot sample of metatuff mineralized with stringers of up to 20% pyrrhotite and disseminated chalcopyrite at 545.7ft returned 664 ppb Au; silicious sediment with pyrite, pyrrhotite, chalcopyrite at 647 feet assayed 0.087oz/t Au over 2.5 feet.
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
File - Resident Geologist files T-2507
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Caramat-Pagwa River sheet, geological compilation series, Algoma, Cochrane and Thunder Bay districts
Publication Number: M2202 Scale: 1:253,440 Date: 1971
Author: Innes D.G., Ayres L.D.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
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