Ontario Geological Survey
Permanent Link to this Record:
MDI42C08SW00030
| Record Name(s) | Cymbal Shaft - 1984 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-08 |
| Date Last Modified | 2022-Sep-08 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Jacobson
Latitude: 48° 17' 27.78" Longitude: -84° 19' 27.4"
UTM Zone: 16 Easting: 698463.45 Northing: 5352110.88 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 42C08SW
Point Location Description: Shaft on former SSM 556406
Location Method: Data Compilation
Access Description: From the junction of the old and new Goudreau roads travel east to the Edwards Gold Mine (approximately 8 km). From the mine take road 49 approximately 9 km to the bridge over Tehoama Creek.
Pre 1930's - trenching, 30 foot shaft. 1981-90: Cymbal Explorations Inc. - mapping, ground geophysical surveys, basal till sampling, stripping, 2 ddh.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Jacobson-0058 | 42C08SW0087 | 42C08SW0087 |
| WP Jacobson-37 | 42C08SW0012 | 42C08SW0012 |
| Jacobson-0031-A1 | 42C08SW0115 | 42C08SW0115 |
| WP Jacobson-39 | 42C08SW5027 | 42C08SW5027 |
| Jacobson-0023-A1 | 42C08SW0111 | 42C08SW0111 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Wawa
Geological Age: Neoarchean Geochronological Age: 2750 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate lava flow-unsubdivided | 1 | Near |
|---|---|---|---|---|
| Gabbro | 2 | Gabbro | Near | |
| Schist-Unsubdivided | 3 | Sericitic, Chloritic | Host | |
| Vein | 4 | Quartz, Carbonate | Host |
Dec 07, 2005 (A Wilson) - The shaft has been sunk on a quartz vein in a sericitic shear zone. The sericitic shear is hosted by a mafic intrusive sill or flow. Diamond drilling intersected altered quartz-feldspar porphyry at depth.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Sphalerite | Economic | Gangue | ||||
| 3 | Pyrrhotite | Economic | Gangue | ||||
| 4 | Chalcopyrite | Economic | Gangue |
Dec 07, 2005 (A Wilson) - Grab samples collected by Cymbal in 1981 from the vicinity of the shaft averaged values of 0.08 oz/t Au, the highest value was 0.15 oz/t Au. Mineralization occurs in quartz-carbonate veins within sericitic-chloritic shears. The shears vary from a few inches to 20 feet inwidth, many are short and discontinuous. The best assay returned from a basal till survey conducted in the area was 0.02 oz/t Au.
| Rank | Classification |
|---|---|
| 1 | Replacement |
| Rank | Characteristic |
|---|---|
| 2 | Sheared |
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 45 | 45 | 75 |
Map - Precambrian geology, Jacobson Township
Publication Number: P3170 Scale: 1:15,840 Date: 1990
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 214-215 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
Book - Gold Occurrences of the Wawa-Missinabie Area, unpublished report
Publication Number: Robinson Page: 146 Date: 1983
Author: Robinson, D.
Publisher Name:
Location: Timmins RGP
MonoMap - Geology of Aguonie, Bird, Finan and Jacobson Townships, District of Algoma
Publication Number: OFR5588 Date: 1993
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
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 Sault Ste. Marie Resident Geologist District Office