Ontario Geological Survey
Permanent Link to this Record:
MDI42E10NE00012
| Record Name(s) | Kuhner-Long Lake Occurrence - 1972, M. Malouf - 1975, Kuhner-Long Lac - 1991, C.A.L. Hogg - 1975, Hogg Occurrence - 1935 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Feb-05 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: McBean Lake Area
Latitude: 49° 41' 36.32" Longitude: -86° 35' 15"
UTM Zone: 16 Easting: 529750.269 Northing: 5504626.598 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E10NE
Point Location Description: Trenches.
Location Method: Conversion from MDI
Access Description: The Kuhner-Long Lake Occurrence is located in Abrey Township approximately 2.8 km southeast of Seven Mile Point, Long Lake. Access is by helicopter, or by boat across Long Lake and then pace and compass.
1935: C.A.L. Hogg discovered a gold showing east of Smith-Elliott Occurrence. 1972: K. Kuhner conducted stripping and trenching on claims TB274303, TB274346, TB325685 and TB325686. 1985: Sixteen claims (TB828866-TB828881) were staked by M. Malouf for C.A.L. Hogg. All trenching occurs on claims TB28876 and TB 828879.
Province: Superior
Geological Age: Archean
Dec 07, 2005 (B Nelson) - Intermediate to mafic metavolcanics underlie the area of the Kuhner-Long Lake Occurrence. The volcanic rocks consist of basalt, chlorite schist, hornblende schist and agglomerate. The metavolcanics are in contact with the eastern extension of the South Sedimentary Belt, approximately 0.4 km to the south. Sedimentary rocks consist of wacke, arkose, quartzite, mica schist, slate and iron formation. The Croll Lake Stock, a multi-phase felsic intrusion consisting of granite, granodiorite, granite gneiss, syenite, porphyritic syenite, pegmatite and aplite, intrudes the metavolcanic-metasedimentary rocks 2.0 km north of the occurrence. A feldspar porphyry dyke intrudes the metavolcanics. The regional foliation strikes 075 degrees. Gold mineralization is associated with a 9 m wide feldspar porphyry dyke intruding a hornblende mafic schist (gabbro). The gabbro has been silicified and weakly foliated. Foliation strikes 082 degrees. The porphyry is silicified, weakly foliated and hosts discontinuous recrystallized to vitreous quartz-tourmaline veins. The porphyry displays sericite alteration and hosts 1% disseminated euhedral pyrite grains associated with quartz veins.
| Rock Type | Rank | Composition | Texture | Relationship | Feldspar Porphyry | 1 | Host |
|---|---|---|---|---|
| Gabbro | 2 | Gabbro | Pillowed | Host |
| Mafic lava flow-unsubdivided | 3 | Basalt | Near | |
| Schist-Unsubdivided | 4 | Chlorite | Near | |
| Schist-Unsubdivided | 5 | Hornblende | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| Quartz | Alteration | Silicification | 1 | ||||
| Sericite | Alteration | Sericitization | 2 |
Dec 07, 2005 (B Nelson) - C.A.L. Hogg reported removing visible gold from the porphyry in 1935. Samples taken in 1985 returned 2 values of <0.01 oz/ton Au and 1 of 0.01 oz/ton Au.
Date: Jan 06, 1997
Geologist: B Nelson
Notes: The Beardmore-Geraldton Economic Geologist visited the occurrence September 26, 1985.
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:
Folio - McBean Lake area, District of Thunder Bay
Publication Number: GDIF047 Date: 1997
Author: Thunder Bay RGO
Publisher Name: Ontario Geological Survey
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:
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