Ontario Geological Survey
Permanent Link to this Record:
MDI41P15NE00085
| Record Name(s) | McChesney Property- Area - 1994, Allen-Coghill Claims - 1934, Chartre-Dufresne Property - 1993, Claim M16942 - 1935 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 2004-Mar-19 |
| Date Last Modified | 2023-Jan-06 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Silver, Lead, Copper
Township or Area: Flavelle
Latitude: 47° 59' 51.12" Longitude: -80° 30' 52.62"
UTM Zone: 17 Easting: 536209 Northing: 5316140 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 41P15NE, 41P16NW
Point Location Description: Stripped area and pits - south central part of patented mining claim 16942
Location Method: Field Visit with GPS
Access Description: Bush road to north off Hwy 66 at west end of Middleton Lake.
1934-46: E. McChesney – stripping, sampling, blasting. 1948: A.E. Bailey – DD-3. 1987: Falconbridge Ltd. – stripping, sampling. 1993-94: D. Chartre and R. Dufresne – stripping, sampling. 1996: Inmet Mining Corp. – mapping, sampling, stripping. 2003-2009: Brigadier Gold Ltd. – ground geophysics, DD Area 3 is located in the south-central part of patented mining claim 16942. A few small pits were blasted in the 1930's to expose quartz veins within rusty and altered sedimentary rocks. In 1994, two small outcrops containing the pits were stripped and cleaned. The larger stripped area, measuring approximately 22 m by 18 m, is east of a winter road and the smaller stripped area, measuring 17 m by 6 m, is west of the road. At the larger stripped area, numerous grab samples, as well as 3 contiguous channel samples cut with a diamond-saw were assayed. All samples are anomalous in gold and range up to 4.59 g/t gold. Contiguous channel sampling, more or less centered on the larger outcrop, averages approximately 1.28 g/t gold over 5.2 m and coincides approximately with the best results for grab samples
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.46611 | 20000005765 | 20000005765 |
| 2.29528 | 20000000318 | 20000000318 |
| 2.29525 | 20000000315 | 20000000315 |
| KL-3880 / 42A02SE0029 | 42A02SE0029 | 42A02SE0029 |
| KL-4091 / 42A02SE0044 | 42A02SE0044 | 42A02SE0044 |
| KL-4104 / 42A02SE0038 | 42A02SE0038 | 42A02SE0038 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Tectonic Assemblage: Timiskaming
Geological Age: Archean
Jun 21, 2012 (G Meyer) - The gold-bearing zone, which appears to be coincident with schistosity (strikes 055° and dips at 70 to 80°), is diagonal to the southern syenite contact.
| Rock Type | Rank | Composition | Texture | Relationship | Siltstone | 1 | Host |
|---|---|---|---|---|
| Conglomerate | 2 | Near | ||
| Syenite | 3 | Near | ||
| Mafic lava flow-unsubdivided | 4 | Near |
Jun 21, 2012 (G Meyer) - The rocks in Area 3 are mapped as sedimentary, with a 1-m wide conglomerate band striking at 050°. The rocks are strongly hydrothermally altered and it is difficult to determine the original rock type. Moore interpreted the rocks in this area to be mafic and intermediate volcanic rocks with sediments outcropping a short distance to the southwest. Vaguely defined, possibly remnant pillow margins, occur at the southern part of the main outcrop. Quartz occurs throughout the outcrop as randomly oriented and distributed veins, blebs and stringers. One quartz vein, striking north-northwest with a near-vertical dip, is up to 1 m wide and pinches out over several m to the southeast. The rocks are strongly carbonatized and contain 1 to 10% fine-grained disseminated pyrite. An increase in pyrite occurs along hydrothermally altered fractures. Syenite is exposed at the extreme southwest portion of the smaller of the two overburden-stripped areas and the contact between the sediments and the volcanic-syenite rocks strikes at 100°. The exposed syenite intrusion is likely part of a larger north-trending intrusion, exposed a short distance to the west. The McChesney gold showing is situated in northwest Flavelle Township in sheared syenite at the contact between the Cairo stock and alkalic metavolcanic rocks. Laminated quartz veins up to 10 m wide and 25 m long are boudinaged within a dextral shear zone that can be traced for more than 1000 m using airborne geophysical magnetic data. There are several other dextral shear zones on the property that are subparallel to the main showing and each of these structures has the potential to be mineralized. A shear zone (locally named the Wiley Lake shear zone) is approximately 200 m south of the main showing and cuts Timiskaming assemblage metasedimentary and alkalic metavolcanic rocks. Old trenches on the shear zone encountered pervasive carbonate- and sericite-altered fine-grained wacke with various amounts of vein chlorite, pyrite and chalcopyrite and porphyroblasts of magnetite and tourmaline.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 4 | Galena | Economic | Ore | ||||
| 3 | Pyrite | Economic | Gangue | ||||
| 6 | Carbonate | Economic | Gangue | ||||
| 7 | Silica | Economic | Gangue | ||||
| Silica | Alteration | Silicification | 1 | Medium | Veins | ||
| Carbonate | Alteration | Carbonatization | 2 | Unknown | Replacement |
Jun 21, 2012 (A Wilson) - Grab and channel samples collected by the property owners in 1993-94 returned assays ranging from 0.04 g/t Au to 4.95 g/t Au. Pods of pyrite, galena and sphalerite within the quartz veins contain high-grade gold assays (up to 20 g/t) but are too widely spaced to provide continuous tonnage. Weak pervasive carbonate, hematite, and sericite in the sheared syenite are accompanied by fluorite, tourmaline and rarely magnetite. Recent diamond drilling by Brigadier Gold Limited, along this structure returned gold assays of 1.7 g/t over 14 m including a higher value of 4.1 g/t over 2.69 m. Grab samples collected by staff from the Wright-Hargreaves Mine in 1946 returned assays ranging from $0.35 - $2.10 Au; 0.98 – 30.16 oz Ag and 0.75% to 17.00% Pb. A single picked sample assayed 3.05% Cu
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Gold | Unknown | 4.59 | g/t |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
Mono - Report of Activities 2000, Resident Geologist Program, Kirkland Lake Regional Geologist Report: Kirkland Lake and Sudbury Districts
Publication Number: OFR6051 Page: 13-14 Date: 2001
Author: Meyer G., Cosec M., Grabowski G.P.B., Guindon D.L., Hailstone M.H., Stephenson C.D., Wallace L.M., Debicki R.L., Yule G.R.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Holmes-Burt area, District of Timiskaming
Publication Number: R044 Page: 15 Date: 1997
Author: Moore J.C.G.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Holmes-Burt area, Timiskaming District
Publication Number: M2078 Scale: 1:31,680 Date: 1997
Author: Moore J.C.G.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology and ore deposits of the Matachewan-Kenogami area
Publication Number: ARV44-02.001 Page: 51-52 Date: 1998
Author: Dyer W.S.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geological Synthesis Along Highway 66 from Matachewan to Swastika
Publication Number: OFR6177 Date: 2006
Author: Berger B.R.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology, Highway 66 Area, Swastika to Matachewan
Publication Number: M2677 Scale: 1:50,000 Date: 2006
Author: Berger B.R., Pigeon L., Leblanc G.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology of Montrose Township
Publication Number: P3354 Scale: 1:20,000 Date: 1996
Author: Jensen L.S.
Publisher Name: Ontario Geological Survey
Location:
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