Ontario Geological Survey
Permanent Link to this Record:
MDI52J02SE00014
| Record Name(s) | Morgan Island - 1911 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jan-20 |
| Date Last Modified | 2022-Feb-17 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper, Zinc
Township or Area: Squash Lake Area
Latitude: 50° 3' 48.51" Longitude: -90° 38' 43.49"
UTM Zone: 15 Easting: 668515.68 Northing: 5548343.97 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52J02SE
Point Location Description: Sampling
Location Method: Conversion from MDI
Access Description: The island can be accessed by light aircraft in summer or winter. Boat or snowmobile access is most convenient from launching sites off Hwy. 599 near Cobb Bay or Horizontal Bay of Sturgeon Lake.
1973: Phelps-Dodge Corp. of Canada conducted ground magnetic and EM surveys. 1974-75: W.H. Higgins and J.R. Nixon carried out mapping, prospecting and sampling. 1975: Avalon Syndicate acquired the claims, cut a grid, and carried out sampling. 1976: Avalon Syndicate drilled 2 DDH totalling 250.9 m. 1983: Noble Peak Resources Ltd. carried out prospecting and sampling. 2011: Paragon Minerals Corp. carried out prospecting, mapping, and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 27 | 52J02SE8798 | 52J02SE8798 |
| 52J02SE8692 | 20000005268 | 20000005268 |
| 2.7127 | 52J02SE8683 | 52J02SE8683 |
| 2.50668 | 20000006555 | 20000006555 |
| 52J02SE-0033 | 52J02SE8709 | 52J02SE8709 |
| 52J02SE-0027 | 52J02SE8705 | 52J02SE8705 |
Province: Superior
Subprovince: Wabigoon
Belt: Sturgeon Lake
Geological Age: Archean
Dec 07, 2005 (R Tuomi) - Carbonate replacement zone in felsic to intermediate pyro-clastic assemblage contains thin intercalated mafic to intermediate flows. Gabbro-diorite intrussions are common. A detailed discussion of the zone is included in Trowell (1983 p.29-36).
| Rock Type | Rank | Composition | Texture | Relationship | Gabbroid-Unsubdivided | 1 | Carbonate Replacement | Hanging Wall |
|---|---|---|---|---|
| Gabbro | 2 | Gabbro-Diorite | Near | |
| Intermediate Tuff | 3 | Tuff And Flows | Near | |
| Mafic lava flow-unsubdivided | 4 | Flows | Near |
Dec 07, 2005 (R Tuomi) - MINERALIZATION OCCURS IN: sheared contact with carbonate replacement. HOST ROCK: Hanging wall of a mafic intrusion in carbonate replaced felsic unit.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Galena | Economic | Ore | ||||
| 4 | Gold | Economic | Ore | ||||
| 1 | Fuchsite | Economic | Gangue | ||||
| Carbonate | Alteration | Carbonatization | 1 | Unknown | Disseminated | ||
| Quartz | Alteration | Silicification | 2 | Unknown | Disseminated |
Apr 15, 2020 (R Tuomi) - Moore (1911, p. 153) mentioned Morgan Island: On Morgan Island, just west of Belmore Bay, is a mass of rhyolite tuff in places, impregnated, especially near its contact with quartz porphyry, with calcium and iron carbonates, which are mineralized with copper and iron pyrites and galena. The tuff, in a band about 100 feet wide, is composed of angular fragments of rhyolite, and the whole mass is reddened by the alteration of the iron bearing minerals. The deposit has not been found to carry gold to any extent. In 1975 the Avalon Syndicate acquired claims Pa. 431450 -413454 and cut a grid on the property. A number of rock samples were taken for gold assay. Most of the samples assayed in the 10 to 180 ppb range but one sample returned 4.5 ppm or 0.13 ounce gold per ton. Further sampling programs have given results in the sub-ppm range. According to OGS map P0968 (Trowell, 1974), a carbonate breccia area carrying anomalously high gold values was outlined on Morgan Island.
Apr 15, 2020 (Therese Pettigrew) - Samples taken in 1983 returned values up to 400 ppm Zn, 250 ppm Cu and 28 ppb Au (Assessment report 52J02SE8683). Samples collected in 2011 by Paragon Minerals returned values from trace up to 0.21 g/t Au (Assessment report 20000006555).
Map - Geological series, Squaw Lake-Sturgeon Lake area, Northeast Arm-Squaw Lake sheet, District of Thunder Bay
Publication Number: P0968 Scale: 1:15,840 Date: 1997
Author: Trowell N.F.
Publisher Name: Ontario Division of Mines
Location:
MonoMap - Geology of the Squaw Lake-Sturgeon Lake area, District of Thunder Bay
Publication Number: R227 Scale: Date: 1983
Author: Trowell N.F.
Publisher Name: Ontario Geological Survey
Location:
Part - The Sturgeon Lake gold field
Publication Number: ARV20-01.005 Scale: Date: 1998
Author: Moore E.S.
Publisher Name: Ontario Bureau of Mines
Location:
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