Ontario Geological Survey
Permanent Link to this Record:
MDI000000003171
| Record Name(s) | Pipe Zone - 1994 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 2022-Sep-30 |
| Date Last Modified | 2022-Sep-30 |
| Created By | |
| Revised By |
Primary Commodities: Copper
Township or Area: Belanger
Latitude: 50° 58' 19.15" Longitude: -92° 52' 33.3"
UTM Zone: 15 Easting: 508712 Northing: 5646717 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52K15NW
Point Location Description: DDH CL94-4 from Assessment report 52K15NW0019
Location Method: Based on Assessment
1994: Noranda discovered the massive sulphide zone when they were drilling on the property. 16 DDH totalling 8214.2 m were drilled, including one on the zone totalling 350 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.17097 | 52K15NW0019 | 52K15NW0019 |
| Rock Type | Rank | Composition | Texture | Relationship | Felsic Tuff | 1 |
|---|---|---|---|---|
| Felsic Tuff-Breccia | 2 |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrrhotite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Sphalerite | Economic | Ore | ||||
| Biotite | Alteration | Biotitic | 1 | Strong | |||
| Chlorite | Alteration | Chloritic | 2 | Strong | |||
| Andalusite | Alteration | 3 | Strong | ||||
| Garnet | Alteration | Garnetization | 4 | Strong | |||
| Staurolite | Alteration | 5 | Strong |
Sep 30, 2022 (Therese Pettigrew) - Hole CL94-4 (L300W/800N) was drilled to depth of 350.0m and was designed to test the North hydrothermal alteration cell along its south contact with what was believed to be an overlying cherty ash tuff cap. The alteration exhibited intense alteration indices and base metal enrichment typical of a proximal VMS mineralizing environment. The hole collared in a siliceous felsic breccia / fragmental exhibiting moderate chlorite-biotite alteration. From 34.2 to 51.0 m, the alteration increased to intense and carried 1-5% disseminated pyrrhotite-chalcopyrite mineralization. Assays returned 0.17% Cu over 10.1 m. The alteration and associated mineralization is typical of that expected from a proximal "pipe" hydrothermal conduit, and the zone is referred to as the Pipe Zone. From 51.0 to 274.9 m, the hole intersected a zone of intense chlorite-biotite-andalusite-garnet-staurolite alteration exhibiting local brown sphalerite and sphalerite-garnet stringers over several mm. This alteration is typical of that observed outcropping as the North alteration zone. Below 274.9 to the end of hole, a cherty massive felsic tuff was observed. No significant mineralization was observed at the contact. The observed pyrrhotite-chalcopyrite mineralization associated with intense black chlorite-biotite alteration immediately overlying the North hydrothermal alteration cell may indicate that the north contact is prospective for significant sulphide mineralization at depth. Since geophysical surveys have so far failed to detect conductive anomalies along the upper contact of the alteration, drill targeting is expected to be below the -200 m level (Assessment report 52K15NW0019).
| Rank | Classification |
|---|---|
| 1 | VMS Base Metal |
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