Ontario Geological Survey
Permanent Link to this Record:
MDI000000001917
| Record Name(s) | Sonic Drillhole 85-60 - 1986 |
|---|---|
| Related Record Type | |
| Record Status | Discretionary Occurrence |
| Date Created | 2016-Mar-31 |
| Date Last Modified | 2022-Jan-05 |
| Created By | A Wilson |
| Revised By | A Wilson |
Primary Commodities: Gold
Secondary Commodities: Iron
Township or Area: Cook
Latitude: 48° 26' 23.63" Longitude: -80° 9' 37.48"
UTM Zone: 17 Easting: 562095.03 Northing: 5365535.2 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 42A08NE
Point Location Description: collar of sonic drill hole 85-60
Location Method: Data Compilation
Access Description: The site is accessible via a road from Ramore
1985: Ontario Geological Survey – 1 sonic drill hole-21.3 m
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
Apr 22, 2016 (A Wilson) - The Quaternary stratigraphy of hole 85-60 is uncomplicated. All sediments above 16.8 m were deposited in proglacial lakes Barlow and Ojibway. The gritty sand layer at 13.4 m was likely deposited by a subaqueous debris flow. Beneath the glaciolacustrine sediments is 2.7 m of subglacial till on bedrock. All Quaternary sediments encountered are part of a single glacial package. Ice associated with this package advanced toward 170º azimuth. A geochemical note, till sample 04 has an Au value of 430 ppb in the "H" fraction, reflecting the recovery of seven gold grains from this sample. During panning of the heavy mineral concentrate for sample 04, fifty grains of marcasite were collected.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Marcasite | Economic | Ore |
Apr 22, 2016 (A Wilson) - A geochemical note, till sample 04 has an Au value of 430 ppb in the "H" fraction, reflecting the recovery of seven gold grains from this sample. During panning of the heavy mineral concentrate for sample 04, fifty grains of marcasite were noted. A total of 7 gold grains were found in till sample 04. The size fraction ranged from 25 x 50 microns to two grains that were 150 x 150 microns in size. Fifty grains of marcasite also were collected from the sample.
| Rank | Classification |
|---|---|
| 1 | Placer |
| Rank | Characteristic |
|---|---|
| 1 | Disseminated |
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 85-59 and 85-60, Taylor and Cook townships, Cochrane District
Publication Number: M80893 Scale: Date: 1987
Author: Steele K.G., McClenaghan M.B., Baker C.L., Jensen L.S.
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