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Ontario Geological Survey
Permanent Link to this Record:
MDI41N15NW00007
| Record Name(s) | Bridget Lake Occurrence - 1980, Ranson Mine - 1938, Finneth Option - 1986, Ranson H Vein - 1962, Ranson Camp Vein - 1985 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1986-Aug-28 |
| Date Last Modified | 2023-Mar-29 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Zinc, Copper, Silver
Township or Area: Rabazo
Latitude: 47° 53' 59.27" Longitude: -84° 51' 22.35"
UTM Zone: 16 Easting: 660223.03 Northing: 5307387.7 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41N15NW
Point Location Description: Adit in hillside
Location Method: Field Visit
Access Description: The site is accessible by road from Wawa. Drive south along highway 17 from the junction of highway 101 and 17 for a distance of approximately 10 km to where a bermed bush road branches off from the highway to the west. Drive or walk down the road for approximately 1.5 km to the adit.
1937: M. A. Hanna Mining Co. - property examination. 1938: Erie Canadian Mines Ltd. - property examination. 1939: Ranson Mines Ltd. - pitting, diamond drilling, 189 ft adit driven into hillside, 98 ft. raise put through to surface 160 ft from the portal, 400 feet of surface trenching. 1966: Acme Gas and Oil Co. Ltd. - airborne geophysical survey. 1982-89: Bridget Lake Resources Ltd. - ground geophysical survey, airborne geophysical survey, diamond drilling, soil survey, in 1983 a 100 ton selected sample from E vein returned assay of 1.56 oz/t Au. In 1984 a 200 ton bulk sample from the E vein was processed at Pamour yielding an assay of 0.18 oz/t Au. 1987-88: FinNeth Exploration Inc. - property optioned, aerial photography, topographic mapping, diamond drilling (8 ddh , 1038.8 m), 'bulk' sample, lake sediment survey, ground geophysical survey, IP survey mapping. 1989-2001: Bridget Lake Resources Inc. - prospecting, airborne geophysics, humus survey, stripping, sampling of C Vein, daimond drilling. 2004: Bridget Lake Resources Inc. - airborne geophysics.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| Rabazo-0016-A1 | 41N15NW0129 | 41N15NW0129 |
| WP_Rabazo-46 | 41N15NW2012 | 41N15NW2012 |
| Rabazo-0035-A1 | 41N15NW0110 | 41N15NW0110 |
| Rabazo-0017-B1 | 41N15NW0133 | 41N15NW0133 |
| WP RABAZO 24 | 41N15NW0075 | 41N15NW0075 |
| WP RABAZO 28 | 41N15NW0001 | 41N15NW0001 |
| WP_Rabazo-39 | 41N15NW2006 | 41N15NW2006 |
| Rabazo-0014-B1 | 41N15NW0144 | 41N15NW0144 |
| Rabazo-0015 | 41N15NW0650 | 41N15NW0650 |
| WP_Rabazo-37 | 41N15NW2001 | 41N15NW2001 |
| WP_Rabazo-47 | 41N15NW2011 | 41N15NW2011 |
| WP_Rabazo-6 | 20000018509 | 20000018509 |
| WP Rabazo-16 | 41N15NW0074 | 41N15NW0074 |
| WP RABAZO.10 | 41N15NW0085 | 41N15NW0085 |
| WP RABAZO 45 | 41N15NW2009 | 41N15NW2009 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Tectonic Assemblage: Catfish
Geological Age: Neoarchean Geochronological Age: 2.7 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
| Rock Type | Rank | Composition | Texture | Relationship | Quartz-Feldspar Porphyry | 1 | Quartz-Feldspar | Sheared | Host |
|---|---|---|---|---|
| Gabbro | 2 | Gabbro | Near | |
| Oxide Ironstone | 3 | Oxide Facies | Near | |
| Vein | 4 | Quartz | Host |
Dec 07, 2005 (A Wilson) - The property consists of a series of quartz veins hosted by the Bridget Lake Stock. The stock consists of a western intrusion of quartz feldspar porphyry that contains late phase segregations of finer-grained granite and supracrustal xenoliths. The eastern part of the stock consists of an inclusion rich phase of the same porphyry. The stock is intruded by gabbro. Banded chert-magnetite iron formation occurs along the northern contact of the quartz feldspar porphyry and also along the southern margins of the gabbro.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Galena | Economic | Gangue | ||||
| 3 | Chalcopyrite | Economic | Gangue | ||||
| 4 | Sphalerite | Economic | Gangue | ||||
| 5 | Arsenopyrite | Economic | Gangue | ||||
| Chlorite | Alteration | Chloritic | 1 | Weak | Replacement |
Dec 07, 2005 (A Wilson) - The H vein averaged 0.459 oz/t Au over the 156 feet of the length of the adit. Other sections of the vein averaged 0.852 oz/t Au over 81 feet. Visible gold usually is found as thin plates on the sericitic slip planes within the quartz. Along its length, the H vein shows a boudinaged nature. The quartz is fine grained and vitreous. The average grade of samples collected from the H vein by FinNeth returned a grade of 34.4481 g/t Au.
Dec 07, 2005 (A Wilson) - Chloritic alteration of the porphyry is common and extensive adjacent to the gabbro veins and dikes. Sericite is abundant as a coating on minor slip planes.
| Rank | Characteristic |
|---|---|
| 2 | Sheared |
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 182 | 14.6 | 105 | 75 |
Date: Feb 19, 2001
Geologist: A Wilson
Notes: The quartz vein systems of the property hav a minimum aggregate length of 1000m and an average width of one meter. Two meter widths are common at depth. Wall rock alteration is minimal to absent. Where present, it is sericitic in the quartz feldspar porphyry and chloritic in the gabbro. The veins occupy shear fractures and may display crack-seal zones to 15 cm in with, sugesting multiple episodes of hydraulic emplacement.
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Ranson Mine | 1987 | Possible | 30300 | ILSG Vol 33 Part 2, p. 26 | Gold 12.4 g/t |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1939 | 697 |
Gold 5348 |
RESIDENT GEOLOGIST FILES |
File - Resident Geologist files WP_Rabazo.20, WP_Rabazo.43
Publication Number: Date:
Author:
Publisher Name:
Location: SSM RGP office
Map - Geological series, Precambrian geology, Rabazo Township, Algoma District
Publication Number: P2682 Scale: 1:15,840 Date: 1983
Author: Massey N.W.D., Navratil S.
Publisher Name: Ontario Geological Survey
Location:
File - Newspaper clippings - Ranson Mines
Publication Number: Date: 1996
Author:
Publisher Name:
Location: SSM RGP office
Map - Geological compilation series, Wawa sheet, districts of Algoma and Sudbury
Publication Number: P0640 Scale: 1:126,720 Date: 1997
Author: Leahy E.J., Rupert R.J., Giblin P.E., Giguere J.F.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
File - Newspaper clippings - Hollinger Consolidated Gold Mines
Publication Number: Date: 1996
Author:
Publisher Name:
Location: SSM RGP office
Map - Precambrian Geology Compilation Series - Michipicoten Sheet
Publication Number: M2669 Scale: 1:250,000 Date: 2002
Author: Johns G.W., McIlraith S.J.
Publisher Name: Ontario Geological Survey
Location:
Folio - Rabazo Township, District of Algoma
Publication Number: GDIF074 Date: 1997
Author: Sault Ste Marie RGO
Publisher Name: Ontario Geological Survey
Location:
File - Newspaper clippings - Bridget Lake Resources
Publication Number: Date: 1985
Author:
Publisher Name:
Location: SSM RGP office
File - Newspaper clippings - Erie Canadian Mines
Publication Number: Date: 1996
Author:
Publisher Name:
Location: SSM RGP office
File - Newspaper clippings - Finneth Exploration Inc
Publication Number: Date: 1996
Author:
Publisher Name:
Location: SSM RGP office
Book - Northern Miner 85-03-07, Exploration in Ontario p. C9
Publication Number: NMINER Date: 1996
Author:
Publisher Name: Northern Miner
Location: Timmins RGP
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 108 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Article - Mishewawa Lake area, District of Algoma
Publication Number: MP116.011 Page: 62-63 Date: 1997
Author: Massey N.W.D.
Publisher Name: Ontario Geological Survey
Location:
Mono - Geology of the Mishewawa Lake area, District of Algoma
Publication Number: OFR5532 Page: 83-85 Date: 1985
Author: Massey N.W.D.
Publisher Name: Ontario Geological Survey
Location:
Mono - Wawa mineral deposits data base
Publication Number: OFR5775 Page: 313 Date: 1991
Author: Frey E.D., Stewart R.C.
Publisher Name: Ontario Geological Survey
Location:
Part - Mines of Ontario in 1939
Publication Number: ARV49-01.003 Page: 19, 26, 191-192 Date: 1997
Author: Tower W.O., Cave A.E., Taylor J.B., Douglass D.P., Hargrave W.G., Bayne A.S., Cooper D.F., Weir E.B., Webster A.R.
Publisher Name: Ontario Dept. of Mines
Location:
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 208 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
Book - Geology of Wawa Area Gold Mineralization, ILSG Vol 33, Pt 2
Publication Number: ILSG vol 3 Page: 23-26 Date: 1987
Author: Frey, E.D.
Publisher Name:
Location:
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For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office