Ontario Geological Survey
Permanent Link to this Record:
MDI53B09SE00002
| Record Name(s) | Karl Zeemel Zone 3 - 1987 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1995-May-23 |
| Date Last Modified | 2022-Mar-02 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper
Township or Area: Karl Lake Area
Latitude: 52° 32' 53.75" Longitude: -90° 13' 7.64"
UTM Zone: 15 Easting: 688571 Northing: 5825655 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 53B09SE
Point Location Description: Location of Trench Area 4 from map in Assessment report 53B09SW0002
Location Method: Data Compilation
1987-88: Geological mapping, prospecting, and magnetic and VLF-EM surveys by Power Explorations. 1997: Diamond drilling and a ground magnetic survey by Placer Dome, including 1 DDH totalling 161 m in the area of the showing.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.11892 | 53B09SW0002 | 53B09SW0002 |
| 2.17272 | 53B09SE0011 | 53B09SE0011 |
| 53B09SW0037 | 53B09SW0011 | 53B09SW0011 |
| 2.17312 | 53B09SE0012 | 53B09SE0012 |
Province: Superior
Subprovince: Berens River
Terrane: North Caribou
Domain: North Caribou Core
Belt: North Caribou
Geological Age: Mesoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Terrigenous-Clastic-Unsubdivided | 1 | Contains |
|---|---|---|---|---|
| Gabbro | 2 | Near | ||
| Mafic lava flow-unsubdivided | 3 | Near | ||
| Intermediate lava flow-unsubdivided | 4 | Near | ||
| Vein | 5 | Stockwork Quartz | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Arsenopyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| Quartz | Alteration | Silicification | 1 | Unknown | Stockwork | ||
| Sericite | Alteration | Sericitization | 2 | Unknown | Disseminated |
Mar 17, 2008 (Mark Puumala) - Geological mapping by Huston (1988) indicates that the Karl-Zeemel Zone 3 showing is located in an area of significant lithological and structural complexity. The occurrence is hosted in clastic metasedimentary rocks. Felsic to intermediate metavolcanic rocks have been mapped to the southwest of the occurrence, while mafic metavolcanics and gabbroic intrusions are found immediately to the east. Foliation in the immediate area of this showing generally strikes northeast. However, considerable variations in bedding and foliation orientations mapped to the south and east suggest the presence of folds. Huston (1988) has suggested that the folding in this area may be related to doming around the gabbroic intrusion. A northeast-striking fault zone was also mapped to the southwest. The Zone 3 occurrence is described by Huston (1988) as a stockwork quartz vein network hosted in sericitized feldspathic wacke that grades into matrix-supported conglomerate. The veins are mineralized with trace arsenopyrite. Significant assays from this zone include grab samples of up to 4130 ppb Au and a 0.33 m channel sample that assayed 23 905 ppb Au (Huston 1988). A Placer Dome diamond drill hole (AFRI# 53B09SE0011) that was drilled approximately 200 m southeast of this occurrence in 1997 is reported to have encountered coarse-grained massive mafic metavolcanics that were mineralized with disseminated chalcopyrite (up to 5%) and pyrrhotite (up to 20%). Low gold assay values (maximum value of 0.17 g/t Au) were reported from this unit. However, no copper or nickel assay results were provided in the assessment file.
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
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