Ontario Geological Survey
Permanent Link to this Record:
MDI000000001875
| Record Name(s) | Adnaron BB-2-84 - 1984, Boos Claims - 1983, Cedar Creek - 2006 |
|---|---|
| Related Record Type | |
| Record Status | Discretionary Occurrence |
| Date Created | 2016-Jan-11 |
| Date Last Modified | 2021-Dec-06 |
| Created By | Therese Pettigrew |
| Revised By | Therese Pettigrew |
Primary Commodities: Zinc, Graphite
Township or Area: Bomby
Latitude: 48° 42' 15.72" Longitude: -85° 52' 36.68"
UTM Zone: 16 Easting: 582634 Northing: 5395201 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42C12NW
Point Location Description: M2614
Location Method: Data Compilation
Access Description: A short walk of a less than a hundred metres along a cut line provides access to the Cedar Creek Claim from the Trans-Canada Highway. An alternate access can also be obtained off the Yellow Brick Road turn-off to the Golden Giant Mine site and then by an overgrown access drill trail.
1983: Adnaron Resources Ltd. and Seemar Mines Ltd. conducted linecutting, ground magnetometer, VLF-EM, IP and resistivity geophysical surveys, geological mapping, and geochemical soil sampling. 1984: Adnaron Resources Ltd. and Seemar Mines Ltd. conducted trenching and drilled 5 DDH totaling 800 m. 2004: Golden Meadow Exploration Ltd. conducted an IP survey. 2006: Golden Meadow Exploration Ltd. conducted geological mapping, sampling, and MMI surveys. 2007: Golden Meadow Exploration Ltd. flew helicopter-borne electromagnetic and magnetic geophysical surveys.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.39664 | 20000003568 | 20000003568 |
| 63.4439 | 42C12NW0018 | 42C12NW0018 |
| 2.6670 | 42C12NW0079 | 42C12NW0079 |
| 2.5908 | 42C12NW0108 | 42C12NW0108 |
| 2.33527 | 20000001782 | 20000001782 |
| 2.30444 | 20000000591 | 20000000591 |
| 2.6079 | 42C12NW0103 | 42C12NW0103 |
| 2.5348 | 42C12NW0429 | 42C12NW0429 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Hemlo
Geological Age: Archean
Jan 11, 2016 (Therese Pettigrew) - The mapping of Trench BB-2 contributed to the understanding of the nature of the metasedimentary/intrusive contact. All contacts are sharp and irregular, with large blocks of metasediments “rafted” into the granodiorite. The granodiorite of the Cedar Lake Pluton is also cut by late-stage granitic and pegmatitic dykes and veins. The metasediments in the area of Trench BB-2 show a relatively high grade of contact metamorphism, but with little metasomatic activity or remobilization of elements (AFRI 42C12NW0018). From the limited information gathered it appears that the geology consists primarily of a southeast striking north dipping metasedimentary sequence of siltstone to quartzite with a chloritized mafic volcanic unit along the north contact with the granodiorite Cedar Lake Stock (AFRI 20000001782).
| Rock Type | Rank | Composition | Texture | Relationship | Ironstone-unsubdivided | 1 | Graphitic | Host |
|---|---|---|---|---|
| Wacke | 2 | Adjacent | ||
| Granodiorite | 3 | Adjacent |
Jan 11, 2016 (Therese Pettigrew) - Graphitic, sulphidized, locally brecciated Banded Iron Formation intercalated with wacke (M2614).
| 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 | Sphalerite | Economic | Ore | ||||
| 4 | Chalcopyrite | Economic | Ore | ||||
| 5 | Graphite | Economic | Ore |
Jan 11, 2016 (Therese Pettigrew) - 10% pyrite, pyrrhotite, sphalerite, chalcopyrite; up to 3% graphite. 0.264 to 0.433% Zn (M2614). The source of the IP conductor was intersected, from 456.0 feet to 493.0 feet. The iron formation is cut by a large granodiorite dyke, thirteen feet wide, leaving an actual intersected width of twenty-four feet. The iron formation, although similar to that intersected in Hole BB-1-84, is notably more graphitic and richer in sulphide content. The zone contains approximately ten percent pyrite, pyrrhotite, with minor sphalerite and chalcopyrite. A highly anomalous zone lies directly below the granodiorite dyke, and over a four-foot section returned values of 243 ppm copper, 4330 ppm (0.43%) zinc, and 23 ppb gold. This lower section of iron formation averaged, over a continuous ten-foot section, 219 ppm copper, 2 643 ppm (0.26%) zinc, and 18 ppb gold. A narrow unit of thinly bedded wackes near 281.0 feet returned an anomalous molybdenum value of 28 ppm over ten feet. The zone is both carbonatized and garnetiferous, and is believed to be a very localized zone of alteration. In BB-4-84, a brecciated zone at the upper contact of the lowest iron formation zone contained abundant quartz-carbonate as a matrix for brecciated siltstone fragments, and 2 to 3 percent graphite (AFRI 42C12NW0018).
Map - Geological Compilation of the Eastern Half of the Schreiber-Hemlo Greenstone Belt
Publication Number: M2614 Scale: 1:50,000 Date: 2000
Author: Muir T.L.
Publisher Name: Ontario Geological Survey
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 South Resident Geologist District Office