Ontario Geological Survey
Permanent Link to this Record:
MDI42E15SE00007
| Record Name(s) | Dam Occurrence - 1994, Kenogamisis Lake Dam Occurrence - 1991, Kenogamisis Lake Dam - 1991, Dam - 1991 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-23 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper, Zinc
Township or Area: Houck
Latitude: 49° 47' 32.13" Longitude: -86° 42' 2.11"
UTM Zone: 16 Easting: 521550.517 Northing: 5515576.495 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E15SE
Point Location Description: Kenogamisis Lake Dam.
Location Method: Conversion from MDI
Access Description: The occurrence is located in Houck Township. Access is by way of the Dam Road 11 km north of highway 11 and approximately 19.2 km east of Geraldton.
1961: An auriferous quartz vein was discovered by the Ontario Department of Public Works during dam construction. 1962: Scope Mining and Exploration Consultants completed a geology report and drill program. 1981: Thor Johansen staked the occurrence. 1984: Thor Johansen completed one diamond-drill hole to a depth of 306 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.10401 | 42L06SW8228 | 42L06SW8228 |
Province: Superior
Geological Age: Archean
Dec 07, 2005 (B Nelson) - The property is underlain by mafic metavolcanics. The volcanic rocks are pillowed, massive or vesicular. Local shearing occurs in the dam area. Sedimentary rocks occur in the northern and southern portion of Houck Township. The metasediments consist of wacke, arkose, slate and iron formation. The Croll Lake Stock intrudes the metavolcanic-metasedimentary sequence to the east. Diorite and diabase intrude the metavolcanics. The quartz vein in the river bed is reported to be from 8-20 cm wide within a shear zone up to 9 m wide in places. Sulphide mineralization can be considerable. The strike of the vein is 55 degrees E and dip is 80 degrees S. Samples from the vein show drag-folding and are well mineralized with pyrite, pyrrhotite, arsenopyrite and traces of chalcopyrite. The vein was reported to be widest near the north cofferdam and open at both ends.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic pillowed flow | 1 | Pillows, Local Shearing | Host |
|---|---|---|---|---|
| Sandstone | 2 | Arkose | Near | |
| Ironstone-unsubdivided | 3 | Near | ||
| Diorite | 4 | Diorite | Near | |
| Vein | 5 | Quartz | Host | |
| Sandstone | 6 | Wacke | Near |
May 06, 2011 (N Bennett) - The property is underlain by mafic metavolcanics. The volcanic rocks are pillowed, massive or vesicular. Local shearing occurs in the same area. Sedimentary rocks occur in the northern and southern portion of Houck Township. The metasediments consist of wacke, arkose, slate and iron formation. The Croll Lake Stock intrudes the metavolcanic-metasedimentary sequence to the east. Diorite and diabase intrude the metavolcanics.
| 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 | Pyrite | Economic | Ore | ||||
| 4 | Pyrrhotite | Economic | Ore | ||||
| 5 | Sphalerite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Quartz | Alteration | Silicification | 1 |
May 06, 2011 (B Nelson) - A grab sample from the quartz vein in the river bed assayed 3.8 oz/ton Au. Grab sample 84-MTJ-6, taken in 1981, assayed 0.44 oz/ton Au. Mineralogy: Parliament (1962)* described the occurrences: 'The quartz vein in the river bed is reported to be from 3 to 8 inches wide within a shear zone up to 10 feet wide in places with considerable sulphide mineralization. The strike of veine is 55 degreesE and dip 80 degreesS. Samples from the vein show drag-folding and are well mineralized with pyrite, pyrrhotite, arsenopyrite and traces of chalcopyrite. The vein was reported to be widest near the north cofferdam and open at both ends. A grab sample from the vein assayed 3.8 oz per ton in gold.' Two veins (#1 and #2) were examined by Mason and White (1986) and may be part of the same structure. The veins stike 077 degrees and dip 75-82 degreesN. Carbonate, pyrite and minor chalcopyrite occur in the veins at surface. Pyrite and sphalerite were intersected in the 1984 drill program.
| Rank | Classification |
|---|---|
| 2 | Hydrothermal |
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| 1 | Vein |
Date: Dec 31, 1996
Geologist: B Nelson
Notes: The Beardmore-Geraldton Economic Geologist visited this occurrence September 8, 1981.
Map - Long Lake-Pagwachuan Lake area, District of Thunder Bay, Ontario
Publication Number: ARM46B Scale: 1:63,360 Date: 1997
Author: Fairbairn H.W., Macdonald R.D.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Tashota-Geraldton sheet, geological compilation series, Thunder Bay and Cochrane districts
Publication Number: M2102 Date: 1997
Author: Pye E.G., Harris F.R., Fenwick K.G., Baillie J.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of the northern Long Lake area
Publication Number: ARV46-03.001 Date: 1997
Author: Fairbairn H.W.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold occurrences, prospects, and deposits of the Beardmore-Geraldton area, districts of Thunder Bay and Cochrane
Publication Number: OFR5630 Date: 1986
Author: Mason J.K., White G.D.
Publisher Name: Ontario Geological Survey
Location:
Book - 42E15SE - unpublished GDIF
Publication Number: GDIF Date: 1987
Author: Ontario Geological Survey
Publisher Name: Ontario Geological Survey
Location: Thunder Bay RGP
File - Resident Geologist Mineral Deposit Files
Publication Number: Min Dep Date:
Author:
Publisher Name:
Location: Thunder Bay RGP
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office