Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000000152| Deposit Name(s) | Kl-35 - 1987 |
|---|---|
| Deposit Status | occurrence |
| Date Created | 2006-Oct-05 |
| Date Last Modified | 2019-Sep-27 |
| Created By | M A Puumala |
| Revised By | T Pettigrew |
Primary Commodities: gold
Township or Area: North Bay Area
Latitude: 51° 45' 36.23" Longitude: -88° 32' 10.64"
UTM Zone: 16 Easting: 393973 Northing: 5735469 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52P15SE
Point Location Description: Location obtained from map in assessment file 52P16SW0002
Location Method: data compilation
1971: Cominco conducted AEM and MAG surveys. 1986-88: Noramco Exploration Inc. conducted AVLF-EM and MAG surveys, IP, and ddh (including 1 DDH on this occurrence). 2004: prospecting, geological mapping, diamond drilling and assaying by Slam Exploration on claims owned by William E. Brereton.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.5246 | 52P16SW0002 | Open |
| 2.30147 | 20000000510 | Open |
Province: Superior
Subprovince: Uchi
Belt: Miminiska-fort Hope
Geological Age: Mesoarchean
Tectonic Assemblage: Unnamed Assemblage Equivalent To Pickle Crow
| Structure Name | Scale | Strike | Dip | Trend | Plunge |
|---|---|---|---|---|---|
| Stratigraphy And Foliation | local | 45 |
10/05/2006 (M A Puumala) - The Keezhik Lake area gold occurrences are located within the northern portions of the Miminiska-Fort Hope Greenstone Belt. This portion of the belt has been interpreted by Stott and Corfu (1991) to be underlain by the rocks of three separate supracrustal rock assemblages. The northernmost assemblage is dominated by mafic volcanic flows containing a banded iron formation marker unit. This assemblage is interpreted to be overlain by a southward facing sequence of massive to pillowed mafic volcanics that also contains a well-defined iron formation marker unit. A third assemblage consisting of mafic volcanics, felsic pyroclastic rocks and a quartz porphyry intrusion overlies the second unnamed assemblage. The Keezhik Lake gold occurrences are located near the boundary between the second and third assemblages. A wide variety of lithologies have been mapped in this area, including mafic metavolcanics, mafic to ultramafic intrusive rocks (gabbro and pyroxenite), banded iron formation, intermediate to felsic pyroclastic rocks with thin interbedded sedimentary layers, and quartz/quartz-feldspar porphyry intrusions (Arnold and MacTavish, 2005). Gold occurrences appear to be hosted within all of these lithologies, with the most significant known occurrence (KL-12) being found in a quartz porphyry stock The Keezhik Lake gold occurrences are located in an area of significant lithologic and structural complexity. The most significant structure that has been mapped in the area is a syncline that is shown by Arnold and MacTavish (2005) to be located immediately to the north of Keezhik Lake. The orientation of stratigraphy and foliation are variable throughout the area and appear to generally parallel the northern margin of the quartz-feldspar porphyry intrusion. A number of faults that cross-cut and offset stratigraphy have also been interpreted to be present throughout the area. The majority of these faults strike approximately north-south and northwest-southeast
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| mafic metavolcanics | 1 | adjacent | ||
| iron formation | 2 | near | ||
| porphyry | 3 | near | ||
| vein | 4 | quartz-carbonate | host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | pyrite | economic | ore | ||||
| 2 | gold | economic | ore |
09/27/2019 (T Pettigrew) - DDH KL-35 returned 5.01 ppm Au over 0.8 m from chemical metasediments in bedded chert with quartz-tourmaline-carbonate veining, and 2.40 ppm Au over 0.8 m from mafic metavolcanics with shearing and carbonate-quartz veining (Assessment report 52P16SW0002).
| Rank | Classification |
|---|---|
| 1 | vein |
| 2 | lode (gold) |
| Rank | Characteristic |
|---|---|
| 1 | vein |
Publication - Mineral Occurrences and Prospects in the Fort Hope-Winisk Area, p. 92-94
Publication Number: OFR5926 Date: 1995
Author: Mason, J.K. and White, G.D.
Publisher Name: OGS
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