Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42E12SW00009

Record: MDI42E12SW00009

General

Mineral Record Identification
Record Name(s) Anglo-Beardmore - 1934, Sandenise Gold - 1944, Broadview Gold - 1949
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1983-Sep-07
Date Last Modified 2022-May-09
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Summers

Latitude: 49° 35' 17.69"    Longitude: -87° 58' 59.17"

UTM Zone: 16    Easting: 428944.48   Northing: 5493315.82    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 42E12SW

Point Location Description: Precise

Location Method: Conversion from MDI

Access Description: Proceed east through the town of Beardmore to Highway 580. Turn left (north) and follow the highway to the pipeline. Turn left and follow the pipeline road to the Blackwater River (approximately 5 km). The original area of the showing is due west approximately 200 m, just north of the river.



Exploration History

1934: M. Hayne staked the property for Anglo-Beardmore in September. 1935-47: Anglo-Beardmore Gold Mines carried out stripping, trenching, and sampling. 1947-48: property acquired by Sandenise Gold Mines and carried out stripping, trenching, and sampling. 1949: three claims were transferred to Broadview Gold Mines Ltd. 1953: J. Lariviere staked the property. 1960-62: F. Oja staked the property and carried out surface exploration. 1979: the property was staked by D. Galley, who transferred the claim to K. Jesseau in 1980. 1981: K. Jesseau carried out power stripping. 1983-84: F. Houghton staked the property, who carried out power stripping, then transferred the claim to D. Thorsteinson. 1985: D. Thorsteinson conducted an EM survey as well as geological mapping. 1986: T. Auger staked the property. Legion Resources Ltd. commissioned an airborne magnetometer and VLF-EM survey. 1987: Legion Resources carried out line cutting, HLEM, EFL-EM, and magnetometer surveys and a 281 hole overburden drill program. 1992: Lafontaine Minerals carried out prospecting and sampling. 1996: Explorations Minieres du Nord Ltée conducted a magnetic survey.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.8379 42E12SW0035 42E12SW0035
2.10093 42E12SW0065 42E12SW0065
2.14935 42E12SW8060 42E12SW8060
63.208 42E12SW0095 42E12SW0095
2.18486 42E12SW2004 42E12SW2004

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Beardmore-Geraldton

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic lava flow-unsubdivided 1 Massive And Pillowed
Gabbro 2 Gabbro
Vein 3 Quartz-Carbonate Host

Lithology Comments

Feb 23, 2021 (Therese Pettigrew) - The property is underlain by andesitic flows and to a lesser extent basaltic flows. Foliation within the flows strikes from 65 to 85 degrees and dips steeply to the north. Quartz veins up to 25.4 cm (10 inches) have been observed within the andesite. No significant mineralization has been noted within the quartz veins or in smaller quartz-carbonate veinlets. In places, the andesite is sheared and/or silicified and mineralized to some degree. Bands of iron formation are associated with the metavolcanics. A lensoid body of diorite cuts the metavolcanics and iron formation. The diorite is medium- to coarse-grained with subhedral feldspar and amphibole phenocrysts up to 0.13 cm (0.05 inches) in size (Speed and Craig, 1992).




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ArsenopyriteEconomicOre
2PyriteEconomicOre
3PyrrhotiteEconomicOre
4ChalcopyriteEconomicOre
1QuartzEconomicGangue
2AnkeriteEconomicGangue
3CarbonateEconomicGangue
4ChloriteEconomicGangue

Mineralization Comments

Feb 23, 2021 (Therese Pettigrew) - A total of 283 reverse-circulation holes were drilled on the occurrence by Legion Resource in 1987. No gold assays were reported, but a number of anomalous arsenic values were recorded with a high of 571 ppm As. Exposure in 2002 consisted of mafic massive and pillowed mafic flows and medium-grained gabbro. Moderate, pervasive carbonate alteration is present in all the rock types. Weak to intense mineralization in the form of disseminated pyrite is present in the mafic metavolcanic rocks. A sample from the massive flow unit assayed 0.08 ounce gold per ton and 158 ppm Cu. Samples returned up to 2.16 g/t Au over 1.16 m and 1.91 g/t Au over 1.5 m (Hart et al., 2002). The main discovery of the Anglo-Beardmore property was a quartz vein 3 to 4.5 m (10 to 15 feet) wide which strikes N 60 degrees E and dips steeply SE. The quartz was white, barren-looking with sparse mineralization of pyrite and arsenopyrite. Samples taken by Burton (1936) assayed 0.03 to 0.13 ounce Au per ton. Maylor Hayne reported grab samples up to 0.22 ounce Au per ton in a 1937 report. Christianson (1947) reported a grab sample of 0.63 oz/t Au and a shallow diamond drill hole on a 5.5 m (18 feet) wide section which ran 0. 04 ounce Au per ton (Speed and Craig, 1992).



Mineral Record Details

References

Map - Summers Township, District of Thunder Bay

Publication Number: P0602 Scale: 1:15,840    Date: 1998

Author: Mackasey W.O.

Publisher Name: Ontario Dept. of Mines

Location:


MonoMap - Precambrian Geology of Kitto, Eva, Summers, Dorothea and Sandra Townships, Northwestern Ontario: Phoenix Bedrock Mapping Project

Publication Number: OFR6095 Page: 125  Date: 2002

Author: Hart T.R., ter Meer M., Jolette C.

Publisher Name: Ontario Geological Survey

Location:


Mono - Beardmore-Geraldton historical research project

Publication Number: OFR5823 Page: 144-147  Date: 1992

Author: Speed A.A., Craig S.

Publisher Name: Ontario Geological Survey

Location:


File - Resident Geologist Mineral Deposit Files

Publication Number: Min Dep Date: 1996

Author:

Publisher Name:

Location: Thunder Bay RGP


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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office