Ontario Geological Survey
Permanent Link to this Record:
MDI52P16SW00010
| Record Name(s) | KL-31 Zone - 1987 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1996-Dec-05 |
| Date Last Modified | 2022-Feb-24 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Keezhik Lake Area
Latitude: 51° 47' 24.63" Longitude: -88° 29' 20.39"
UTM Zone: 16 Easting: 397305 Northing: 5738750 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52P15SE, 52P16SW
Point Location Description: Diamond drill hole
Location Method: Data Compilation
Access Description: Located north of Keezhik Lake, 38 km to 45km nortwest of Fort Hope First Nation. Accessible by Helicopter.
1971: AEM and MAG surveys - Cominco. 1986-88 AVLF-EM and MAG surveys, IP, and ddh. - Severide Resources. 2004: prospecting, geological mapping, diamond drilling (including 1 DDH totalling 236 m on this showing) and assaying by Slam Exploration on claims owned by William E. Brereton.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.28485 | 52P16SW2001 | 52P16SW2001 |
| 63.5246 | 52P16SW0002 | 52P16SW0002 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Miminiska-Fort Hope
Geological Age: Mesoarchean
Oct 05, 2006 (Mark 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 lava flow-unsubdivided | 1 | Flow | Near |
|---|---|---|---|---|
| Quartz Porphyry | 2 | Quartz | Near | |
| Ironstone-unsubdivided | 3 | Altered Iron Formation | Host | |
| Vein | 4 | Quartz | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Magnetite | Economic | Ore | ||||
| 2 | Sulphides | Economic | Ore | ||||
| 3 | Gold | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue |
Sep 27, 2019 (Mark Puumala) - Winter (1988) indicates that the KL-31 occurrence is located within an altered iron formation that is hosted within a mafic metavolcanic sequence. The occurrence is in close proximity to the contact with a quartz porphyry intrusion. The 1:15,000 scale compilation map of the area prepared by Arnold and MacTavish (2005) indicates that stratigraphy in this area strikes approximately east-west. No significant structures appear to have been mapped in this area. This occurrence is based on a gold assay of 4.43 g/t over 1.5 m in a banded iron formation from a single drill hole (KL-31) that was reported by Winter (1988; Assessment report 52P16SW0002).
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Unknown |
Map - Keezhik-Miminiska lakes area, District of Kenora (Patricia Portion), Ontario
Publication Number: ARM48E Scale: 1:63,360 Date: 1997
Author: Prest V.K.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Operation Fort Hope
Publication Number: MP042 Scale: Date: 1970
Author: Thurston P.C., Carter M.W.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Part - Geology of the Keezhik-Miminiska lakes area
Publication Number: ARV48-06 Scale: Date: 1998
Author: Prest V.K.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Operation Fort Hope, Lansdowne House-Fort Hope sheet, districts of Kenora (Patricia Portion) and Thunder Bay
Publication Number: P0562 Scale: 1:126,720 Date: 1997
Author: Thurston P.C., Carter M.W.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Fort Hope-Lansdowne House sheet, geological compilation series, Cochrane, Kenora, and Thunder Bay districts
Publication Number: M2237 Scale: 1:253,440 Date: 1972
Author: Thurston P.C., Carter M.W., Riley R.A.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
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