Ontario Geological Survey
Permanent Link to this Record:
MDI000000000235
| Record Name(s) | Wl88-05 - 1988 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2007-Feb-06 |
| Date Last Modified | 2022-Jun-09 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Kapkichi Lake Area
Latitude: 51° 27' .46" Longitude: -90° 20' 1.18"
UTM Zone: 15 Easting: 685265 Northing: 5703255 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O08NW
Point Location Description: ddh database
Location Method: Data Compilation
1928: Gold mineralized vein discovered on south shore of Kapkichi Lake by Gunnar Berg 1946 - 50: Trenching, ground magnetic survey and diamond drilling by Central Patricia Gold Mines. 1987-1988: Geological and geophysical surveys and diamond drilling by Umex.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 26 | 52O08NW0007 | 52O08NW0007 |
| 2.12157 | 52O08NW0004 | 52O08NW0004 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Pickle Lake
Geological Age: Mesoarchean
Feb 06, 2007 (Mark Puumala) - The area geology is described in MDI000000000234.
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Adjacent | ||
| Granitoid-Unsubdivided | 3 | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore |
Feb 06, 2007 (Mark Puumala) - This gold occurrence is located within a unit of altered banded magnetite-chert iron formation that was drilled (ddh WL88-05) by Umex (AFRI# 52O08NW0007) to assess gold potential near the nose of a folded iron formation unit mapped by Mullen (1987). The folded structure is a synform with a northeast plunging (approximately 40 degrees) axis. Drill hole WL88-05 is located on the northwest limb of this structure. Mullen (1987) reports that surface mapping in the area indicated that the iron formation occurs within fine to medium-grained massive to foliated amphiboite (mafic metavolcanics), and that these rocks are intruded by granitoid dikes and sills. The diamond drill hole log for WL88-05 confirms this interpretation. The gold mineralization in WL88-05 is reported on the diamond drill hole log to occur in an approximately 2.7 m wide section of finely-banded, contorted chert-magnetite iron formation. The sulphide content of this horizon was reported to be low, although a single pyritic fracture was noted. The most significant reported assay was 2345 ppb Au over 0.68 m.
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| 2 | Replacement |
| Rank | Characteristic |
|---|---|
| 1 | Stratabound |
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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office