Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42E10NW00033

Record: MDI42E10NW00033

General

Commodities

Primary Commodities: Copper, Gold

Secondary Commodities: Zinc, Lead

Location

Township or Area: Ashmore

Latitude: 49° 41' 19.04"    Longitude: -86° 49' 23.58"

UTM Zone: 16    Easting: 512751.22   Northing: 5504026.11    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 42E10NW

Point Location Description: Trenches, diamond drill holes.

Location Method: Conversion from MDI

Access Description: The claim group is located in southeastern Ashmore and southwestern Croll Township, south of Trans Canada Highway 11. Follow Highway 11, 9.5 km east of the turnoff to Geraldton (Highway 584) to the Eldee Lake Road, which crosses the property immediately to the south.

Exploration History

1945: Claims covering the occurrence were staked. 1946: More claims were staked. The 16 claim group was optioned to D.M. Morin and C.A. Palangie. Trenching, pitting and sampling were done on some of the claims. 1946-50: Surface work con't and the option was presumably dropped. 1952-1960: Claims were cancelled and restaked; surface work was performed. 1962: A group of 20 claims was optioned to New Bidlamaque Gold Mines Ltd., which explored a copper showing on claim TB100195. A grid was cut around the main showing and a mag survey was conducted. Nine holes totalling 380.1 m were drilled. The option was later dropped due to discouraging results. 1963-64: Some of the claims were cancelled. 1965: Some claims restaked; manual and mechanical work was performed. 1966: John Wodian continued surface exploration on two claims, which included trenching, stripping, blasting, sampling and diamond drilling (1 DDH totaling 40.8 m). 1967-1984: Various claims were cancelled and restaked numerous times. Mechanical and manual work, as well as limited drilling, was done sporadically. H. Holm drilled 1 DDH totalling 48.8 m in 1970 and another DDH totalling 48.8 m in 1972.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Beardmore-Geraldton

Geological Age: Archean  

Geology Comments

Dec 07, 2005 (B Nelson) - The Waterson property is underlain by Keewatin lavas and occasional interflow bands of volcanic breccia of general east-northeast strike, by large sill-like masses of intrusive hornblende diorite, and by one narrow north-south dyke of Pre-Keweenawan quartz diabase. The lavas, although highly chloritized and carbonatized, are of intermediate of basic composition. A few are quite massive in character, particularly in the west section of property, but most of them have been highly sheared and any original structures to a large extent obliterated. Vestiges of amygdaloidal and pillow structures, although locally evident, do not afford any reliable means of determining tops and bottoms. The claims overlie a part of the north limb of a synclinal fold in a belt of Keewatin lavas which strike approximately S70 degrees W through the north part of the Little Longlac area. Two gold occurrences have been exposed in Croll Township. On claim TB31961, a shear zone strikes N70 degrees E. It occurs within the lavas and parallels the contact betwen lavas and a narrow sill of diorite porphyry. On claim TB31960, some 243.8 m southeast of the shear on TB21961, a vein of white to blue quartz occurs in a shear within volcanic rocks. The vein strikes about N70 degrees E.

Lithology

Lithology Comments

Dec 07, 2005 (B Nelson) - Much of the diorite is fine-to-medium-grained, not unlike some of the flow rocks in appearance. Many outcrops, however, consist of coarse-grained diorite with large, well-developed crystals of hornblende.

Mineralization

Mineralization Comments

Dec 07, 2005 (B Nelson) - Copper mineralization in Ashmore Township consists of replacement cp and po in zones of altered bands of felspar porphyry. The shear zone on claim TB39161 varies from 0.3 to 1.83 m in width and has been traced for about 152.4 m. Values range from 0.06 to 0.32 oz/ton Au over widths up to 1.22 m . The shear zone on claims Tb31960 varies from 1.52 to 2.44 m in width where it is exposed. It has been exposed for about 76.2 m and traced by probing for another 91.4 m. Values range from 0.06 to 0.44 oz/ton Au over widths of up to 0.66 m. Core samples from New Bidlamaque Gold Mines' drilling in 1962 yielded values up to 1.78% copper.

Alteration Comments

Dec 07, 2005 (B Nelson) - The lavas are 'highly chloritized and carbonatized.

Mineral Record Details

References

Map - Township of Ashmore, District of Thunder Bay, Ontario

Publication Number: M1951-02 Scale: 1:12,000    Date: 1997

Author: Horwood H.C., Pye E.G.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Gold occurrences, prospects, and deposits of the Beardmore-Geraldton area, districts of Thunder Bay and Cochrane

Publication Number: OFR5630 Page: 640-646  Date: 1986

Author: Mason J.K., White G.D.

Publisher Name: Ontario Geological Survey

Location:

Part - Geology of Ashmore Township

Publication Number: ARV60-05 Date: 1997

Author: Horwood H.C., Pye E.G.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Tashota-Geraldton sheet, geological compilation series, Thunder Bay and Cochrane districts

Publication Number: M2102 Date: 1997

Author: Pye E.G., Harris F.R., Fenwick K.G., Baillie J.

Publisher Name: Ontario Dept. of Mines

Location:

File - Resident Geologist Mineral Deposit Files

Publication Number: Min Dep Date:

Author:

Publisher Name:

Location: Thunder Bay RGP

Map - Thunder Bay data series, Geraldton area, Thunder Bay District

Publication Number: P2520 Scale: 1:15,840    Date: 1982

Author: Love W.D.

Publisher Name: Ontario Geological Survey

Location:

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