Ontario Geological Survey
Permanent Link to this Record:
MDI52F05NE00062
| Record Name(s) | Green Bay - Ross Creek - 1956 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 2011-Feb-16 |
| Date Last Modified | 2022-Nov-04 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Nickel
Township or Area: Atikwa Lake Area
Latitude: 49° 23' 16.67" Longitude: -93° 41' 6.84"
UTM Zone: 15 Easting: 450271 Northing: 5470811 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F05NE
Point Location Description: Triangle with map symbol Ni Cu on map P0387
Location Method: Other Literature
1956: blasting, 4 drill holes totalling 1212 m by Green Bay Mining and Exploration Company Ltd. 2007-08: 43 grab samples were collected in the vicinity of the Caribou Lodge and Ross Creek Showings.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52F/05NE, KK-6, Canadian Arrow Mines Ltd | 20000004040 | 20000004040 |
| 52F/05NE, I-2, Green Bay Mining and Explorations | 52F05NE0018 | 52F05NE0018 |
| 13 | 52F05NE0039 | 52F05NE0039 |
| 63.763 | 52F05NE8181 | 52F05NE8181 |
Province: Superior
Geological Age: Precambrian
| Rock Type | Rank | Composition | Texture | Relationship | Gabbro | 1 | Gabbro | Host |
|---|---|---|---|---|
| Peridotite | 2 | Peridotite | ||
| Mafic lava flow-unsubdivided | 3 | Basalt | ||
| Granodiorite | 4 | Granodiorite Dykes |
Feb 16, 2011 (J Bongfelt) - 'A blasted rock face contains coarse Po-Cpy mineralization in medium to very coarse gabbro cut by coarse grained granodiorite dykes. The drill holes intersected gabbro, diorite, peridotite, basalt and granodiorite dykes.' (Kenora Assessment File 52F/05NE, JJ-1, Raoul, Allen - Economic Geology)
Nov 23, 2017 (Therese Pettigrew) - The Ross Creek showing occurs on the west side of the Lawrence River, about 0.5 miles below the falls at the outlet of Denmark Lake. Five feet of medium- to very coarse-grained gabbro, cut by coarse-grained granodiorite dykes, has been blasted from a steep rock face at the river’s edge. Coarse blebs of pyrrhotite and chalcopyrite, the former rimming the latter in paces, occur in the coarser grained phase of the gabbro (Davies, 1973).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrrhotite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Ore |
Feb 16, 2011 (J Bongfelt) - Mineralization Occurrence information: 1956: From a point about 17 meters north-northwest of the showing, four holes totalling 1,212 meters were drilled by Green Bay Mining and Exploration. The best section (Hole No.8) contained 0.6% nickel and 0.15% copper, across 0.8m. A 1.2 meters section (Hole No.10) contained 0.27% nickel and 0.35% copper. Prospect information: 'In July of 2007, one day of reconnaissance prospecting and geological mapping was carried out by Canadian Arrow Mines in the vicinity of the Ross Creek Cu-Ni Prospect. The work was focused on locating and sampling the showings near the western side of the Lawrence River. A total of six grab samples were taken from the area.' Three grab samples taken from the surface above the intersecting drill core samples (obtained in 1956), gave the following assay results: 0.0206%, 0.1915% & 0.257% Ni and 0.0323%, 0.4392% & 0.4485% Cu. (Kenora AF 52F/05NE, KK-6, Canadian Arrow Mines Ltd.)
Nov 23, 2017 (Therese Pettigrew) - From a point about 17 m NNW of the showing, 4 holes have been drilled, bearing approximately S, SSW, SW, and WSW, respectively. All 4 holes intersected gabbro, diorite, peridotite, basalt, and a number of granodiorite dykes. Minor amounts of pyrrhotite, pyrite, and chalcopyrite occur in most of the rock types, but are erratically distributed. In the SW-bearing hole, the first 22 m consisted of lightly mineralized gabbro; the best section contained 0.10% Cu and 0.18% Ni across 1.3 m. A vertical hole drilled from the same location did not intersect sulphide minerals. Two holes drilled NNE from the showing commenced in mineralized, medium-grained gabbro, with a 1.2 m section containing 0.35% Cu and 0.27% Ni. A hole drilled under the owing from 60 m NW contained only traces of sulphide minerals. A trench about 180 m SW of the showing and another trench 154 m WSW of the first trench uncovered minor pyrite and chalcopyrite in medium- to coarse-grained gabbro. Sulphide minerals appear to be stronger adjacent to minor NW-trending slip zones (Davies, 1973).
File - Resident Geologist files 52F/05NE, JJ-1, Raoul, Allen, Denmark Lake Proper
Publication Number: Date:
Author:
Publisher Name:
Location: Kenora RGP office
Map - Atikwa Lake area, west half, District of Kenora
Publication Number: P0387 Scale: 1:15,840 Date: 1997
Author: Davies J.C.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Atikwa Lake area, District of Kenora
Publication Number: R111 Page: 42-43 Date: 1973
Author: Davies J.C.
Publisher Name: Ontario Division of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 159 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Atikwa Lake area, District of Kenora
Publication Number: OFR5055 Page: 73-75 Date: 1997
Author: Davies J.C.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
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