Ontario Geological Survey
Permanent Link to this Record:
MDI52O08NE00018
| Record Name(s) | Gateway Patricia - 1937, Dona Lake # 9 - 1990 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1990-Nov-29 |
| Date Last Modified | 2022-Jun-07 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Ponsford
Latitude: 51° 29' 53.31" Longitude: -90° 10' 39.4"
UTM Zone: 15 Easting: 695900 Northing: 5709000 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 52O08NE
Point Location Description: ddh database and assessment file map.
Location Method: Conversion from MDI
1936-1939: Geological and geophysical surveys and diamond drilling by Gateway Patricia Gold Mines. 1987: Diamond drilling by UMEX.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 52O08NE0017 | 52O08NE0065 | 52O08NE0065 |
Province: Superior
Subprovince: Uchi
Terrane: North Caribou
Domain: Uchi
Belt: Pickle Lake
Geological Age: Mesoarchean
Dec 29, 2006 (Mark Puumala) - The geology of the Central Patricia area is described in MDI52O08NE00008.
| Rock Type | Rank | Composition | Texture | Relationship | Silicate Ironstone | 1 | Silicate Facies | Host |
|---|---|---|---|---|
| Terrigenous-Clastic-Unsubdivided | 2 | Quartzite, Greywacke, Graphitic Schist | Adjacent | |
| Mafic lava flow-unsubdivided | 3 | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 4 | Arsenopyrite | Economic | Ore | ||||
| Silica | Alteration | Silicification | 1 |
Dec 29, 2006 (Mark Puumala) - Pye (1976) describes the geology in the area of the Gateway Patricia prospect as being chiefly underlain my mafic metavolcanic rocks, with intercalated bands of quartzite, greywacke, and graphitic schist. Diamond drilling by Gateway Patricia Gold Mines in 1937 (AFRI# 52O09SE0065) is reported to have encountered anomalous gold mineralization in five diamond drill holes (G-16, 17, 19, 20 and 21) advanced on Claim Nos. Pa. 2188 and 2191. Subsequent drilling in the same area by Umex in 1987 (AFRO Nos. 52O08NE0080 and 88) confirmed the presence of gold mineralization in three holes (KAWA-87-1, 2 and 4). The anomalous gold values occur over a strike length of approximately 1 km in sedimentary horizons that were logged by Holmes (1937) as siliceous fine-grained sedimentary rock that was occasionally cherty and/or banded. Umex has re-interpreted the mineralized formation(s) as banded silicate-facies iron formation. Based on diamond drill locations shown on the Umex diamond drill hole location map (AFRO# 52O08NE0088), the horizons reported to contain elevated gold values appear to strike approximately west-northwest. Umex diamond drill hole logs (AFRO Nos. 52O08NE0080 and 88) indicate that gold mineralization is hosted within banded silicate facies iron formation horizons that have been brecciated or cross-fractured, contain significant quartz veining, and are mineralized with pyrite and arsenopyrite (up to 10% sulphides). Some pyrrhotite and chalcopyrite mineralization was also reported. The most notable reported assays include 0.15 oz/ton over 0.9 m in Gateway Patricia ddh G-16, 1190 ppb Au over 1.5 m in Umex ddh KAWA-87-1, and 1390 ppb Au over 1.5 m in Umex ddh KAWA-87-4. It is noteworthy that a number of assay results were not included in the assessment file for Umex ddh KAWA-87-1 and 2.
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| 2 | Replacement |
| Rank | Characteristic |
|---|---|
| 1 | Stratabound |
Map - Geological series, Crow River area, District of Kenora (Patricia Portion)
Publication Number: P1009 Scale: 1:12,000 Date: 1997
Author: Pye E.G.
Publisher Name: Ontario Division of Mines
Location:
Map - Geological series, Precambrian geology, Pickle Lake area, western part
Publication Number: P3056 Scale: 1:50,000 Date: 1989
Author: Stott G.M., Brown G.H., Coleman V.J., Green G.M., Reilly B.A.
Publisher Name: Ontario Geological Survey
Location:
Mono - Geology of the Crow River area, District of Kenora (Patricia Portion)
Publication Number: OFR5152 Date: 1976
Author: Pye E.G.
Publisher Name: Ontario Division of Mines
Location:
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