Ontario Geological Survey
Permanent Link to this Record:
MDI42C02NE00096
| Record Name(s) | Rand No. 2 Iron Range - 1915, Morrison No. 2 - 1915 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1980-Jul-02 |
| Date Last Modified | 2022-Oct-20 |
| Created By | |
| Revised By |
Primary Commodities: Iron, Sulphur/Pyrite
Township or Area: Abotossaway
Latitude: 48° 14' 30.13" Longitude: -84° 32' 29.65"
UTM Zone: 16 Easting: 682523.37 Northing: 5346086.95 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C02NE
Point Location Description: Centre of iron formation compilation map 1 OFR 5587
Location Method: Conversion from MDI
Access Description: The Rand No. 2 is located near the eastern township boundary. It is most easily accessed by walking south along the railway for approximately 2 km south of the town of Goudreau. The occcurrence is situated just south of Margaret Lake along the old Murphy Mine powerline.
1915-1916: staked by J. W. Morrison. trenching, 18 ddh (2917 ft). 1920: Rand Consolidated Mines: drove adit (final depth 168 feet) into south band. 1941: Aldermac Copper Corporation - 10 ddh (4218 ft). 1964: IRSUGO Consolidated Mines Limited owned but did not explore the property. 1968: Superior Acid and Iron Limited - 18 ddh (5322 ft), calculation of reserves. 1969: Superior Acid and Iron Limited - 39 ddh (16820 feet); underground program and adit driven into north (Tunnel) band for total of 1235 feet.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.3634, Abotossaway-0015 | 42C02NE8717 | 42C02NE8717 |
| Abotossaway-0024 | 20000018718 | 20000018718 |
| 2.11847, WP_Abotossaway-10 | 42C02NE0206 | 42C02NE0206 |
| 2.13020, WP_Abotossaway-11 | 42C02NE0203 | 42C02NE0203 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: OFR 5888
Dec 07, 2005 (A Wilson) - The Rand No. 2 is one of the 32 segments of the Michipicoten Iron Fomration. It consists of two parallel bands of iron formation (north or tunnel and the south) separated by about 170m. The formation is bounded on the east by the McVeigh Creek Fault and on the west by a diabase-filled fault west of Round Lake. A narrow band of intermediate to felsic metavolcanic rocks occurs below the north band the southern band lies direcly on a thick section of intermediate to felsic metavolcanics. The iron formation has siderite at its stratigraphic bottom fowed by pyrite and chert up section. The north band is interepreted to have been thrust up over the south band due to low angle strike-slip faulting.
| Rock Type | Rank | Composition | Texture | Relationship | Sulphide Ironstone | 1 | Sulphide | Host |
|---|---|---|---|---|
| Intermediate lava flow-unsubdivided | 2 | Intermediate To Felsic | Hanging Wall | |
| Mafic lava flow-unsubdivided | 3 | Mafic To Intermediate | Footwall |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Siderite | Economic | Ore | ||||
| Ankerite | Alteration | Carbonatization | 1 | Strong | Replacement | ||
| Chloritoid | Alteration | Chloritic | 2 | Medium | Replacement |
Dec 07, 2005 (A Wilson) - Only one sample of the sulphide facies iron formation returned a gold value of 0.01 oz/t Au. The average sulphur content of the pyrite is 37%.
Dec 07, 2005 (A Wilson) - The rocks above and below the iron formation are pervasively soaked with carbonate and chloritoid porphyroblasts are abundant.
| Rank | Classification |
|---|---|
| 1 | Replacement |
| Rank | Characteristic |
|---|---|
| 1 | Layered |
| 2 | Stratabound |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 305 | 15 | 90 | 75 | 2750 MA | OFR 5888 |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 1568 | 25 | 90 | 75 | 2750 MA | OFR 5888 |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Rand No. 2 (All Sources) | 1969 | Unclassified | 16139858 | Sulphur/Pyrite 26 NA | ||
| Total (above ACR track) | 1969 | Possible | 1707221 | Sulphur/Pyrite 45.1 % | ||
| Total (below ACR track) | 1969 | Possible | 7208465 | Sulphur/Pyrite 49.1 % | ||
| Tunnel (North) Band | 1942 | Probable | 627876 | Sulphur/Pyrite 51 % | ||
| Tunnel (North) Band | 1942 | Possible | 22894 | Sulphur/Pyrite 50 % | ||
| South Band | 1942 | Probable | 3521050 | Sulphur/Pyrite 48 % | ||
| South Band | 1942 | Possible | 1588880 | Sulphur/Pyrite 50 NA |
Map - Goudreau-Lochalsh area, District of Algoma, Ontario
Publication Number: ARM49G Scale: 1:31,680 Date: 1997
Author: Bruce E.L.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Michipicoten area, compilation sheet, District of Algoma
Publication Number: P0184 Scale: 1:126,720 Date: 1997
Author: Goodwin A.M.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of Abotossaway, Corbiere, Leclaire and Musquash Townships and Part of Dunphy Township, District of Algoma
Publication Number: OFR5587 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Book - Abotossaway Township - unpublished GDIF
Publication Number: GDIF Date: 1985
Author: Resident Geologist Staff
Publisher Name:
Location: Timmins RGP
Mono - Pyrite deposits of Ontario
Publication Number: MDC005 Page: 29-30 Date: 1967
Author: Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Iron deposits of Ontario
Publication Number: MDC011 Page: 61 Date: 1968
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 110-111 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Abotossaway, Corbiere, Leclaire and Musquash Townships and Part of Dunphy Township, District of Algoma
Publication Number: OFR5587 Page: 244-248 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Publication - Michipicoten Iron Ranges; Geological Survey of Canada, Memoir 147
Publication Number: GSC Memoir 147 Page: 103-105 Date: 1926
Author: Collins, W H; Quirke, T T; Thomson, E
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/100849
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 77 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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