Ontario Geological Survey
Permanent Link to this Record:
MDI42A09NE00072
| Record Name(s) | Eastford Lake - 1986, Milligan Township Float Train No.1 - 1986, Denison - 1986, Dome Explorations Ltd. - 1986, Bay Resources & Services Inc. - 1986, St. Genevieve Resources Ltd. - 1986 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1986-Jul-17 |
| Date Last Modified | 2022-Apr-20 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper, Mercury, Silver, Lead
Township or Area: Milligan
Latitude: 48° 41' 44.42" Longitude: -80° 8' 23.49"
UTM Zone: 17 Easting: 563295.151 Northing: 5393982.818 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 42A09NE
Point Location Description: Diamond drill hole in Milligan tp.
Location Method: Conversion from MDI
Access Description: Point Located: A point 1.75 km south and 0.20 km east of the northwest corner of Milligan Township. Anomalous gold tenors within esker sands and gravels and auriferous boulders occur as far as 700 m east of Eastford Lake in both Warden and Milligan Townships. Access to the area is via sand logging roads which may be reached via Highway 101.
1964-1966: Kennco Explorations (Canada) Ltd. acquired a large number of claims in the Warden-Milligan-Kerrs Township area and completed electromagnetic, magnetic, and seismic surveys; esker sand and gravel geochemical sampling for gold and mercury; Pleistocene geological surveys; and diamond drilling totalling 9,620 feet. 1975-1979: Denison Mines Ltd. completed magnetic and electromagnetic surveys; till sampling and fabric analysis; diamond drilling; and a whole rock geochemical survey (of boulders and diamond drill core). 1979-1982: Dome Exploration (Canada) Ltd. completed electromagnetic and magnetic surveys, a 20 hole overburden drilling program totalling 3,212 feet, and 13 diamond drill holes. 1984: Bay Resources and Services Ltd. processed 2 bulk esker sand and gravel samples weighing 13 tons and 669 pounds, respectively, via a Reichart spiral. 1985: Bay Resources and Services completed a magnetic survey and a soil sampling survey. Dome Exploration diamond drilled one hole totalling 282 m. 1986: St. Genevieve Resources Ltd. completed magnetic and electromagnetic surveys and a geological compilation. 1987: St. Genevieve Resources completed a seismic survey, a boulder distribution survey, and overburden drilled 33 holes totalling 6,057 feet. 1988: Hedman Resources Ltd. completed airborne electromagnetic and magnetic surveys which in part included the occurrence area.
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
Metamorphism Grade: Greenschist
Dec 07, 2005 (C Salo) - Bedrock geology in northwest Milligan Township is poorly known due to extensively developed glacial deposits, including those of the Munro Esker (Vagners 1984; McClenaghan et al. 1988, 1987; Steele 1988). Johnstone (1986), Gupta and Johnstone (1987), Jensen and Baker (1986), and Johnstone and Steele (1989) indicate that bedrock geology in the area consists mainly of weakly metamorphosed (greenschist or lower metamorphic facies) tholeiitic volcanic rock and minor interflow chert, fine grained wacke, and siliceous sediment of the (Archean) Stoughton-Roquemaure Group. A recent geophysical survey of Milligan Township (OGS 1984) indicates that bedrock stratigraphy in the area strikes southeast.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz-Cb | Host |
|---|---|---|---|---|
| Peridotite | 2 | Peridotite | Host | Near |
| Intermediate Tuff | 3 | Andesite | Tuff | Near |
| Quartz-Feldspar Porphyry | 4 | Quartz Feldspar | Near | |
| Mafic lava flow-unsubdivided | 5 | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Gangue | ||||
| 2 | Pyrite | Economic | Gangue | ||||
| 3 | Mercury | Economic | Gangue | ||||
| 4 | Quartz | Economic | Gangue | ||||
| 5 | Magnetite | Economic | Gangue |
Dec 07, 2005 (C Salo) - Hole M-23 is reported (assessment files) to have inter. schistose peridotite hosting serpentine, py, and cp in qcv which aver. 0.01 ounce of Au per ton and 0.03% of copper along a 1.8' core length and hole M-13 to have inter. a 0.8' core length of andesite tuff containing pyritic qv material which aver. 0.01 ounce of Au per ton and a 0.3' long core length of andesite tuff which aver. 0.01 ounce of Au per ton. Dome Exploration (Canada) also inter. anomalous Au tenors (345 ppb of Au across a 0.43 m long section of dia. drill core which inter. a qcv containing 15% of py within a q fel porphyry dike hosted by mafic volcanic rx) up ice from the anom. aurif. esker sands and gravels. During 1984, Bay Res. and Ser. attempted to evaluate the placer Au potential of the anom. aurif. esker sands and gravels. Bay Res. and Services reported that: Processing of a bulk sample from the main anomaly...[was accomplished with the aid of a] Reichart spiral. This 669-lb sample gave, at -10 mesh, 215 lbs. of sand which produced 2.57 lbs. of magnetic conc. containing 0.45 oz of Au and 1.21 oz of Ag per ton with a recovery of 73%. Elimination of the magnetite reduced the weight of the conc. to 1.26 lbs and raised the Au content to 1.62 oz Au and 1.95 oz of Ag per ton, meaning that at the 73% rate of some 320 tons of esker material are required from this specific zone to produce 1 oz of Au and 1.20 oz of Ag. Lovell et al. (1983) ind. that placer deposits containing Au conc. of as little as 0.1 ppm of Au have been commercially worked. The bulk sample processed by Bay Res. aver. about 0.003 ounce of recovered Au per ton, or about 0.11 ppm of recovered Au. The placer deposit might, therefore, be considered to be pot. econ. on the basis of the result of this single bulk sample analysis provided that the extraction results are representative, reproducible, and that sufficient tonnage of aurif. material is present to justify a large scale placer mining operation.
Map - Petroleum resources map, structure top Rochester Formation, Wellington County, southern Ontario
Publication Number: P2896 Scale: 1:100,000 Date: 1986
Author: Cochrane R.O., Bailey Geological Services Ltd.
Publisher Name: Ontario Geological Survey
Location:
Map - Black River-Matheson Area
Publication Number: OFM0050 Scale: 1:15,840 Date: 1986
Author: Johnstone R.M.
Publisher Name:
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:
Book - Northern Miner 85-09-09, Bay Encouraged, p. 13
Publication Number: NMINER Date: 1985
Author:
Publisher Name: Northern Miner
Location:
Map - Geophysical/geochemical series, Matheson-Black River area, Milligan Township, airborne electromagnetic survey, total intensity magnetic survey, District of Cochrane
Publication Number: M80577 Scale: 1:20,000 Date: 1984
Author: Questor Surveys Ltd.
Publisher Name: Ontario Geological Survey
Location:
Map - Quaternary geology of Matheson area, Cochrane District
Publication Number: P2735 Scale: 1:50,000 Date: 1985
Author: Vagners U.J.
Publisher Name: Ontario Geological Survey
Location:
Mono - Ontario occurrences of float, placer gold and other heavy minerals
Publication Number: MDC017 Page: 65, 164-165, 171 Date: 1978
Author: Ferguson S.A., Freeman E.B.
Publisher Name: Ontario Geological Survey
Location:
Compend - Report of activities, 1985, Regional and Resident Geologists
Publication Number: MP128 Page: 211 Date: 1986
Author: Kustra C.R.
Publisher Name: Ontario Geological Survey
Location:
Folio - Milligan Township, District of Cochrane
Publication Number: GDIF370 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: 1309-1314 Date: 1990
Author: Bath A.C.
Publisher Name: Ontario Geological Survey
Location:
Article - A gravity survey in the Iroquois Falls-Lake Abitibi area, District of Cochrane
Publication Number: MP137.074 Page: 411-14 Date: 1997
Author: Gupta V.K., Johnstone R.M.
Publisher Name: Ontario Geological Survey
Location:
Article - Precambrian geology of Coulson, Warden, and Milligan townships, Black River-Matheson (BRIM) area, District of Cochrane
Publication Number: MP132.079 Page: 392-397 Date: 1997
Author: Johnstone R.M.
Publisher Name: Ontario Geological Survey
Location:
Article - 1982 report of the Kirkland Lake Resident Geologist
Publication Number: MP107.006 Page: 107-129 Date: 1997
Author: Lovell H.L., Grabowski G.P.B., Guindon D.L.
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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