Ontario Geological Survey
Permanent Link to this Record:
MDI000000002688
| Record Name(s) | Eyapamikama Lake SE - 1987 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2021-Oct-29 |
| Date Last Modified | 2023-Aug-03 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Seeseep Lake Area
Latitude: 52° 55' 49.62" Longitude: -90° 46' 6.01"
UTM Zone: 15 Easting: 649998 Northing: 5866865 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 53B15NW
Point Location Description: Stripped area A in Assessment report 53B15NW0010
Location Method: Data Compilation
1985: 635479 Ontario Ltd. carried out VLF-EM and magnetic surveys. 1987: Power Explorations Inc. carried out prospecting, stripping, mapping, and sampling. 2018: Goldcorp carried out prospecting and sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.10584 | 53B15NW0010 | 53B15NW0010 |
| W8603.00026 / 53B15NW0013 | 53B15NW0016 | 53B15NW0016 |
| 1577 | 20000017013 | 20000017013 |
Province: Superior
Subprovince: Berens River
Terrane: North Caribou
Domain: North Caribou Core
Belt: North Caribou
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | quartz-carbonate | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Near | ||
| Schist-Unsubdivided | 3 | chlorite-carbonate schist | Contains |
Oct 29, 2021 (Therese Pettigrew) - The property is underlain principally by an east-west trending sequence of pillowed to massive mafic volcanic flows. The flows are often medium to coarse grained and exhibit discordant gabbroic segregations. Sheared bands of approximately stratiform, cherty, calcareous, micaceous sediments, occur intermittently throughout the volcanic sequence. These units are always highly deformed and over-printed by the regional slatey, S1 cleavage, (Assessment report 53B15NW0010).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Pyrrhotite | Economic | Ore | ||||
| 3 | Arsenopyrite | Economic | Ore |
Oct 29, 2021 (Therese Pettigrew) - The highest gold values on the property were discovered in this zone near Power Exploration's grid location 11+00E, 10+00N. A brecciated and sheared band of cherty, chloritic, calcareous chemical sediments is exposed for 160 feet along the zone. Gold mineralization of 1,360 ppb Au over 1.0 feet, 1,650 ppb Au over 1.3 feet, 562 ppb Au over 2.0 feet and 559 ppb Au from a grab sample were obtained from this zone. These samples were collected from chlorite-carbonate schist interbeds hosted in a chert and chert breccia horizon containing up to 10% fine-grained disseminated pyrite and pyrite-pyrrhotite stringers with a trace of arsenopyrite (Assessment report 53B15NW0010). Sampling by Goldcorp in 2018 returned up to 1.67 ppm Au from a sheared clastic metasediment (Assessment report 20000017013).
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Gold | Unknown | 1360 | ppb | |||
| Gold | Unknown | 1.67 | ppm | |||
| Gold | Unknown | 1650 | ppb |
Article - Sioux Lookout Resident Geologist's District - 1989
Publication Number: MP147.004 Page: 88-90 Date: 1997
Author: Janes D.A., Seim G.Wm., Storey C.C.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Precambrian geology, Eyapamikama Lake area, (Opapimiskan Lake project), Kenora District (Patricia Portion)
Publication Number: P2834 Scale: 1:31,680 Date: 1985
Author: Bartlett J.R., Breaks F.W., de Kemp E.A., Shields H.N.
Publisher Name: Ontario Geological Survey
Location:
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