Ontario Geological Survey
Permanent Link to this Record:
MDI000000002767
| Record Name(s) | Ribble Showing 1 - 1986 |
|---|---|
| Related Record Type | |
| Record Status | Occurrence |
| Date Created | 2021-Nov-08 |
| Date Last Modified | 2022-Jan-05 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Seeseep Lake Area
Latitude: 52° 58' 6.34" Longitude: -90° 46' 15.91"
UTM Zone: 15 Easting: 649682 Northing: 5871083 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 53B15NW
Point Location Description: Sample on map in Assessment report 53B15NW0011
Location Method: Data Compilation
1986: M. Ribble carried out prospecting, sampling, and mapping. 1988: Golden Eagle Resources Inc. conducted magnetometer and VLF-EM surveys and drilled 2 DDH totalling 303.6 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.10212 | 53B15NW0011 | 53B15NW0011 |
| 15 | 53B15NW0002 | 53B15NW0002 |
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 | Host |
|---|---|---|---|---|
| Conglomerate | 2 | Contains | ||
| Quartz Wacke | 3 | |||
| Mafic lava flow-unsubdivided | 4 | Near | ||
| Intermediate lava flow-unsubdivided | 5 | Near |
Nov 08, 2021 (Therese Pettigrew) - The metasediments exposed on the property are mainly conglomerates and wackes. Matrix-supported conglomerate intercalcated with a coarse grained quartz wacke is exposed just south of the interpreted contact between the mafic volcanics and the sediments. This unit is intensely deformed near its lower contact, and is chlorite, and garnet bearing. Thin (10 m?) lenses of rusty weathering grunerite iron formation occur within this unit 50 to 100 m south of the interpreted contact. Conglomerate clasts range from pebble to boulder in size, and all are extremely attenuated parallel to foliation. Most of the clasts are quartz with lesser amounts of mafic volcanics, felsic intrusive, and fine-grained metasediment. The grain size decreases higher in section, giving way to wackes and mudstones to the lake. These rocks are fine grained, finely bedded, biotite rich, and have a well-developed slatey cleavage (Assessment report 53B15NW0011).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Arsenopyrite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| Biotite | Alteration | Biotitic | 1 | Unknown | |||
| Chlorite | Alteration | Chloritic | 2 | Unknown | |||
| Tourmaline | Alteration | Tourmalinization | 3 | Unknown |
Nov 08, 2021 (Therese Pettigrew) - Samples taken in 1986 returned 990 ppb Au. Gold values are confined to rock chip samples taken from a 50 cm wide biotite-chlorite-tourmaline alteration zone in which a quartz vein system is mineralized with semi-massive to massive arsenopyrite and minor pyrite and pyrrhotite. Gold values are confined to the arsenopyrite (Assessment report 53B15NW0011).
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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office