Ontario Geological Survey
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MDI32D05NW00151
| Record Name(s) | Garthack - 1981, Alex Gilles - 1981, Knight - 1981, Gledhill - 1981, Benbow Gold Syndicate - 1981, Kerr Addison Mines Ltd. - 1981 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1981-Jan-21 |
| Date Last Modified | 2023-Mar-01 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper
Township or Area: Thackeray
Latitude: 48° 27' .28" Longitude: -79° 55' 25.82"
UTM Zone: 17 Easting: 579575.431 Northing: 5366885.696 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 32D05NW
Point Location Description: Pit
Location Method: Conversion from MDI
Access Description: Point Located: A point 0.06 km south and 2.65 km west of the northeast corner of Thackeray Township.
1919: Knight et al. (1919) reported that grab samples from a 2- 3 inch wide quartz-calcite vein assayed as much as 0.02 ounce of gold per ton. 1925: Gledhill (1925) reported that pyritic 'greenstone' intruded by syenite dikes assayed 0.19 ounce of gold per ton across mineable widths. 1946- 1947: Garthack Mining Co. Ltd. completed surface pitting, trenching, geological mapping, and diamond drilled 9 holes (The Northern Miner, March 4, 1948) totalling about 2,000 feet on 10 claims straddling the Garrison/Thackeray Township common boundary. Several of these claims were acquired from the Benbow Gold Syndicate. The best mineralized intersection yielded by this drilling was reported (The Northern Miner, December 4, 1947) to be a core length 4.2 feet long averaging 0.09 ounce of gold per ton. 1948: Garthack Mining Co. acquired 12 additional claims in the area and completed a magnetic survey. 1951: At this time the property consisted of 25 claims. Through November, 2,500 feet of diamond drilling was completed (The Northern Miner, November 15, 1951). 1978: Grab samples from the No.1 vein are reported (Jensen 1978) to average 0.01 and 0.02 ounce of gold per ton. 1985: What once constituted the Garthack Mining Co. claims were held by Kerr Addison Mines Ltd. as part of extensive land holdings in the area.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| KL-1347 | 42A02SW0001 | 42A02SW0001 |
Province: Superior
Geological Age: Archean
Metamorphism Grade: Greenschist
Dec 07, 2005 (C Salo) - Geological mapping (Satterly 1949; Jensen 1978, 1982; Jensen and Langford 1985; Jensen and Baker 1986; Johnstone and Steele 1989, Baker et al. 1982; McClenaghan et al. 1988, 1987; Steele 1988) and recent geophysical surveys (OGS 1984) indicate the area to be underlain mainly by weakly metamorphosed (greenschist or lower metamorphic grade) subaqueously deposited volcanic and interflow sedimentary and/or tuffaceous rocks of the (Archean) Kinojevis Group. These rocks form a monoclinal east southeast striking, steeply south dipping, and south facing succession which occupies part of the north limb of the east striking and east plunging Blake River Synclinorium. Felsic ('syenitic') to mafic ('dioritic') intrusive rocks also occur in the area.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Silicified Basalt | Near |
|---|---|---|---|---|
| Syenite | 2 | N/A | ||
| Diorite | 3 | Dioritic | Near | |
| Vein | 4 | Quartz-Calcite | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Hematite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Ore | ||||
| 4 | Specularite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Calcite | Economic | Gangue | ||||
| 3 | Carbonate | Economic | Gangue | ||||
| Silica | Alteration | Silicification | 1 |
Dec 07, 2005 (C Salo) - The Garthack occurrence is reported (Jensen 1978; assessment files, Resident Geologist's Office, Kirkland Lake) to consist of quartz-calcite veins and stockworks with varying orientations which are hosted by mafic volcanic rocks and dioritic intrusive bodies. Pyrite is also associated with porphyritic 'syenitic' dikes developed in 'greenstone'. Satterly (1949) reported that at least 5 vein systems (not all of which are documented to be anomalously auriferous) occur in the area. At least one vein system (possibly the No.1 'vein', which is reported by Satterly (1949) to be a 160 striking quartz vein stockwork consisting of veins up to 2 feet wide hosted by pyritic and chalcopyrite and specularite bearing silicified volcanic rock) has been traced on surface for 350 feet (Satterly 1949; The Northern Miner, August 21, 1947). The maximum exposed width of this vein system is reported to be 30 feet. Best channel samples (of unspecified length) from the area are reported to have averaged 0.12 ounce of gold per ton (The Northern Miner, March 4, 1948).
Map - Geological series, Quaternary geology of the Magusi River area, Cochrane and Timiskaming districts
Publication Number: P2483 Scale: 1:50,000 Date: 1982
Author: Baker C.L., Steele K.G., Seaman A.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Precambrian geology of the Magusi River area, Cochrane and Timiskaming districts
Publication Number: P2434 Scale: 1:63,360 Date: 1982
Author: Jensen L.S.
Publisher Name: Ontario Geological Survey
Location:
Part - Lightning River gold area (District of Cochrane)
Publication Number: ARV34-06.004 Page: 98 Date: 1998
Author: Gledhill T.L.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geological series, bedrock samples from the sonic drilling program 1987, Matheson area, District of Cochrane
Publication Number: P3114 Scale: 1:100,000 Date: 1989
Author: Johnstone R.M., Sutcliffe R.H., Steele K.G., Baker C.L., McClenaghan M.B.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of Garrison Township
Publication Number: ARV58-04 Page: 25-26 Date: 1997
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Geophysical/geochemical series, Matheson-Black River area, Garrison Township, airborne electromagnetic survey, total intensity magnetic survey, District of Cochrane
Publication Number: M80598 Scale: 1:20,000 Date: 1984
Author: Questor Surveys Ltd.
Publisher Name: Ontario Geological Survey
Location:
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 136 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Map - Geophysical/geochemical series, Matheson-Black River area, Thackeray Township, airborne electromagnetic survey, total intensity magnetic survey, District of Cochrane
Publication Number: M80608 Scale: 1:20,000 Date: 1984
Author: Questor Surveys Ltd.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Thackeray, Elliott, Tannahill, and Dokis townships, District of Cochrane
Publication Number: R165 Page: 56 Date: 1978
Author: Jensen L.S.
Publisher Name: Ontario Geological Survey
Location:
Map - Thackeray and Elliott townships, Cochrane District
Publication Number: M2368 Scale: 1:31,680 Date: 1977
Author: Jensen L.S.
Publisher Name: Ontario Geological Survey
Location:
Mono - Preliminary report on the Timmins-Kirkland Lake area, gold deposits file
Publication Number: OFR5467 Page: G0078 Date: 1983
Author: Hodgson C.J.
Publisher Name: Ontario Geological Survey
Location:
Folio - Thackeray Township, District of Cochrane
Publication Number: GDIF357 Date: 1997
Author: Kirkland Lake RGO
Publisher Name: Ontario Geological Survey
Location:
Mono - Mineral occurrences, deposits, and mines of the Black River-Matheson area
Publication Number: OFR5735 Page: 1194-1198 Date: 1990
Author: Bath A.C.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology and petrogenesis of the Archean Abitibi belt in the Kirkland Lake area, Ontario
Publication Number: MP123 Date: 1985
Author: Jensen L.S., Langford F.F.
Publisher Name: Ontario Geological Survey
Location:
Article - Quaternary geology and geochemical exploration in the Matheson area
Publication Number: MP136.294 Page: 200-214 Date: 1997
Author: McClenaghan M.B., Lavin O.P., Nichol I., Shaw J.
Publisher Name: Ontario Geological Survey
Location:
Article - Quaternary geology and geochemical exploration in the Matheson area
Publication Number: MP140.294 Date: 1997
Author: McClenaghan M.B., Lavin O.P., Nichol I., Shaw J.
Publisher Name: Ontario Geological Survey
Location:
Article - Reconnaissance till sampling program, Matheson-Lake Abitibi area, District of Cochrane
Publication Number: MP141.081 Page: 472-477 Date: 1997
Author: Steele K.G.
Publisher Name: Ontario Geological Survey
Location:
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