Ontario Geological Survey
Permanent Link to this Record:
MDI52A16SE00004
| Record Name(s) | Carroll Central - 1968, Sutherland - 1980, Montreal Mining - 1980, Ignace Island - 1980, Dampler - 1980, J.L. Carroll North - 1980, St. Ignace Strait Copper - 1968, Nipigon Strait - 1968 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1980-Jan-29 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Q Unknown |
| Revised By | B Nelson |
Primary Commodities: Copper
Secondary Commodities: Silver
Township or Area: Williamson Lake Area
Latitude: 48° 47' 26.65" Longitude: -88° 4' 44.79"
UTM Zone: 16 Easting: 420741.794 Northing: 5404754.773 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A16SE
Point Location Description: Diamond drill holes
Location Method: Conversion from MDI
Access Description: The showings are located along the mid-western shore of St. Ignace Island, approximately 22 km south-southeast of Red Rock (claim map G-158, Williamson Lake). Access may be gained by boat from Nipigon or Red Rock via Nipigon Strait (Lake Superior).
1846: Veins were reported in a Montreal Mining Company report on the east and west sides of the northern part of Nipigon Strait. 1961: Sutherland and Company drilled 3 diamond drill holes, totalling 839.1 m for E. and G. Dampier. 1968: Eight diamond drill holes, totalling 301.1 m were completed for J.L. Carroll. 1970: The claims lapsed. 1985: Unstaked as of December 18, 1985. 1987: J. Dampier and sons conducted prospecting including underwater sampling. 1995: Six patented claims cover the area: TB 44229, TB 44224, TB 44226, TB 44227, TB 44257, TB 44258.
Province: Superior
Geological Age: Archean
Dec 07, 2005 (B Nelson) - The Carroll occurrence is located near the western shore of St. Ignace Island, near the base of the (Proterozoic) Osler volcanic rocks. These rocks are primarily amygdaloidal to massive basalt with minor andesite which are underlain by Osler sedimentary rocks. One diamond drill hole 27 m long was drilled along the lake shore to test showings consisting of native copper in amygdules or disseminated in the lava.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Basalt | Amygdaloidal To Massive | Host |
|---|---|---|---|---|
| Intermediate lava flow-unsubdivided | 2 | Andesite | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Copper | Economic | Ore | ||||
| 2 | Silver | Economic | Ore | ||||
| 3 | Chalcocite | Economic | Ore | ||||
| 1 | Chlorite | Economic | Gangue | ||||
| 2 | Prehnite | Economic | Gangue | ||||
| 3 | Calcite | Economic | Gangue | ||||
| Calcite | Alteration | Carbonatization | 1 |
Dec 07, 2005 (B Nelson) - The mineralization encountered in the diamond drill hole was native copper with trace amounts of silver. No mineralization of economic importance was discovered. The Carroll occurrences were visited by the Resident Geologist's program. Other than some evidence of diamond drilling, no evidence of mineralization was found. No samples were submitted for analyses by the Resident Geologist's program, however, exceptional samples of native copper from the Carroll occurrences have been viewed on the Morning Star, which is the charter boat of M. and J (E.S). Dampier. (Resident Geologist's Program, Schreiber Hemlo District, Thunder Bay).
Date: Feb 27, 1997
Geologist: B Nelson
Notes: Resident Geologist personnel visited the occurrence in July of 1992.
Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District
Publication Number: M2232 Scale: 1:253,440 Date: 1973
Author: Carter M.W., McIlwaine W.H., Wisbey P.A.
Publisher Name: Ontario Division of Mines
Map - St. Ignace Island and adjacent islands, Thunder Bay District
Publication Number: M2285 Scale: 1:63,360 Date: 1974
Author: Giguere J.F.
Publisher Name: Ontario Division of Mines
Mono - Silver cobalt calcite vein deposits of Ontario
Publication Number: MDC010 Scale: Date: 1968
Author: Sergiades A.O.
Publisher Name: Ontario Dept. of Mines
MonoMap - Geology of St. Ignace Island and adjacent islands, District of Thunder Bay
Publication Number: R118 Scale: Date: 1975
Author: Giguere J.F.
Publisher Name: Ontario Division of Mines
Book - RES. GEOL. MIN. DEP. FILES TB.
Publication Number: N/A Scale: Date:
Author:
Publisher Name:
Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.
Publication Number: OFR5951 Scale: Date: 1996
Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.
Publisher Name: Ontario Geological Survey
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