Ontario Geological Survey
Permanent Link to this Record:
MDI42C02SE00131
| Record Name(s) | Algoma Ore Anomaly 12 - 1981 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1999-Sep-14 |
| Date Last Modified | 2022-Sep-12 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Zinc
Township or Area: McMurray
Latitude: 48° 0' 27.61" Longitude: -84° 41' 1.55"
UTM Zone: 16 Easting: 672750.36 Northing: 5319748.59 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C02SE
Point Location Description: Drill hole MB-4-81
Location Method: Other Literature
Access Description: The site is accessible by driving east from Wawa along highway 101 for approximately 5 km. The drill collar location is located approximately 1.5 km SE of this point on the northwest side of a small pond.
1980-81: Algoma Ore Division - airborne geophysics, diamond (2 holes, 498.5 ft).
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Hawk Lake
Geological Age: Neoarchean Geochronological Age: 2900 MA Geochron. Age Ref.: OFR 5888
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (A Wilson) - Diamond drilling in the area intersected 2 bands of iron formation (Judith Iron Range) in intermediate to mafic metavolcanic rocks of the Hawk Assemblage.
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate massive flow | 1 | Mafic To Intermediate | Massive | Adjacent |
|---|---|---|---|---|
| Lamprophyre-Unsubdivided | 2 | Near | ||
| Sulphide Ironstone | 3 | Sulphide-Facies | Host |
Dec 07, 2005 (A Wilson) - Drill logs describe a laminated chert and sulphide iron formation between 225 and 231 feet. In a second drill hole from the same drill program (MB-13-81) two additional conductors were found. One in a chlorite-chert horizon and the second in a banded chlorite-biotite-calcite quartz schist.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrrhotite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - Assays from drill hole MB-4-81 returned values of0.001 to 0.005 oz/t Au, 0.04 to 0.05 oz/t Ag, 0.06 - 0.16% Cu and 0.07-1.16% Zn. Assays from MB-13-81 returned values of less than 0.005 oz/t Au, 1.3 - 2.1 oz/t Ag, 0.221 - 0.81% Cu and 0.255 - 0.321% Zn.
Map - Geological series, Precambrian geology of McMurray Township, Wawa area, Algoma District
Publication Number: P2441 Scale: 1:15,840 Date: 1982
Author: Sage R.P., Sawitzky E., Turner J., Leeselleur P., Sagle E.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Chabanel, Esquega, Lastheels and McMurray Townships, District of Algoma
Publication Number: OFR5586 Page: 420-421 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
File - Resident Geologist files McMurray-0011-B1
Publication Number: Date: 1981
Author: Algoma Ore Division
Publisher Name:
Location: SSM RGP office
Map - Precambrian Geology, Michipicoten Greenstone Belt, Central Portion
Publication Number: P3303 Scale: 1:50,000 Date: 1994
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
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