Ontario Geological Survey
Permanent Link to this Record:
MDI000000001918
| Record Name(s) | Sonic Drillhole 87-49 - 1987 |
|---|---|
| Related Record Type | |
| Record Status | Discretionary Occurrence |
| Date Created | 2016-Mar-13 |
| Date Last Modified | 2022-Jan-05 |
| Created By | A Wilson |
| Revised By | A Wilson |
Primary Commodities: Gold
Township or Area: Cook
Latitude: 48° 23' 23.01" Longitude: -80° 9' 53.58"
UTM Zone: 17 Easting: 561825 Northing: 5359955.01 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 42A08NE
Point Location Description: collar of sonic drill hole 87-49
Location Method: Data Compilation
1987: Ontario Geological Survey – sonic drilling
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
Apr 22, 2016 (A Wilson) - The Quaternary stratigraphy is glaciolacustrine clay, silt and sand, deposited in proglacial lakes Barlow and Ojibway, overlying gravelly sand and gritty silty sand (till ?) on bedrock. Sediments immediately above bedrock were deposited in close proximity to the ice margin. All sediments at this hole are part of the Matheson glacial package. Ice associated with this package advanced toward 170º azimuth.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore |
Apr 22, 2016 (A Wilson) - Sample 4901 from drill hole 87-47 assayed 1400 ppb Au reflecting the recovery of 12 abraded gold grains from the heavy mineral concentrate. A total of 8 gold grains were recovered from sample 4701 in drill hole 87-47. The grains ranged from 25 microns to 500 x 500 microns. All grains were listed as being abraded. A total of 36 gold grains were recovered from samples from drill hole 87-48. The grains ranged from 25 x 25 microns to 125 x 225 microns. Most grains were described as abraded to delicate. A total of 17 gold grains were recovered from samples from drill hole 87-49. The grains ranged from 25 x 25 microns to 175 x 200 microns. All grains were described as abraded.
Map - Airborne Magnetic and Electromagnetic Surveys, Matheson Area
Publication Number: M82024 Scale: 1:20,000 Date: 2000
Author: Ontario Geological Survey
Publisher Name: Ontario Geological Survey
Map - Geophysical/geochemical series, sonic drillholes 87-47, 87-48 and 87-49, Cook Township, Cochrane District
Publication Number: M81121 Scale: Date: 1988
Author: Steele K.G., Baker C.L., McClenaghan M.B., Johnstone R.M., Bloom L.B.
Publisher Name: Ontario Geological Survey
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For detailed information regarding this mineral record please contact the Kirkland Lake Resident Geologist District Office