Ontario Geological Survey
Permanent Link to this Record:
MDI000000000400
| Record Name(s) | Noramco NBW-88-06 - 1988 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2007-Oct-24 |
| Date Last Modified | 2022-Jun-08 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Setting Net Lake Area
Latitude: 52° 50' 49.2" Longitude: -93° 41' 2.6"
UTM Zone: 15 Easting: 453931 Northing: 5855470 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 53C13SE
Point Location Description: ddh database
Location Method: Data Compilation
1987-88: Geophysics, geological mapping and diamond drilling by Noramco.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.12095 | 53C13SE0010 | 53C13SE0010 |
Province: Superior
Subprovince: Sachigo
Terrane: North Caribou
Belt: Favourable Lake
Geological Age: Neoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Terrigenous-Clastic-Unsubdivided | 1 | Numerous Lithologies | Contains |
|---|---|---|---|---|
| Porphyry-unsubdivided | 2 | Contains | ||
| Pegmatite | 3 | Pegmatitic Granite | Contains | |
| Mafic lava flow-unsubdivided | 4 | Contains | ||
| Ultramafic-Unsubdivided | 5 | Near |
| 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 | Sphalerite | Economic | Ore | ||||
| 4 | Pyrrhotite | Economic | Ore | ||||
| 5 | Malachite | Economic | Ore | ||||
| Silica | Alteration | Silicification | 1 | ||||
| Carbonate | Alteration | Carbonatization | 2 |
Oct 24, 2007 (Mark Puumala) - Chute (1988) indicates that Noramco drill hole NBW-88-06 was advanced to target north-northeast-striking fault zone located south of Crazy Lake. This is a structure that was mapped by Ayres (1970). The drill hole was reported to have intersected a complex sequence of interlayered mafic metavolcanics, ferruginous chert, clastic metasediments and ferruginous marble that has in turn been intruded by numerous felsic dikes and an ultramafic unit. Chute (1988) reported widespread sulphide mineralization and alteration throughout the borehole (i.e., consistent with a fault/shear zone). Pyrite is noted to be the most common sulphide mineral, with lesser quantities of pyrrhotite and chalcopyrite (minor). Isolated occurrences of sphalerite and malchite were also reported. The most notable mineralized zones reported by Chute (1988) include a zone of smokey grey quartz veins in pegmatitic granite between 43.9 m and 53.4 m that contains up to 5% pyrite (probable fault zone), and a zone of 50% net-textured pyrrhotite in iron formation between 147.0 to 147.4 m. Carbonatization is the most common form of alteration reported by Chute (1988), occurring as patchy alteration, stringers and veinlets. Silicification is less pervasive, occurring in discrete zones. The metavolcanic rocks are reported to generally be chloritized and garnetiferous, while sericitization is common in quartz-feldspar porphyry units. The most notable assays reported on the drill hole logs (AF RL 53C13SE #48) include: 621 ppb Au over 1.5 m (38.7 to 40.2 m) and 759 ppb Au over 1.5 m (44.6 to 46.1 m) in the pegmatitic granite within and adjacent to the major zone of quartz veining; and 1931 ppb Au over 1.2 m in sericitic quartz feldspar porphyry at the contact with weakly sulphide mineralized iron formation (between 164.6 and 165.8 m).
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
Book - ddh log for NBW-88-06
Publication Number: AF RL53C13SE 48 Date:
Author: Noramco
Publisher Name:
Location:
Map - Setting Net Lake area, District of Kenora (Patricia Portion)
Publication Number: P0538 Scale: 1:15,840 Date: 1997
Author: Ayres L.D.
Publisher Name: Ontario Dept. of Mines
Location:
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