Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42A04NW00039

Record: MDI42A04NW00039

General

Mineral Record Identification
Record Name(s)	Ireland - 1992, Crawford River - 1989, American Barrick - 1989
Related Record Type	Simple
Related Record(s)
Record Status	Occurrence
Date Created	1992-Jul-29
Date Last Modified	2023-Aug-03
Created By
Revised By

Commodities

Primary Commodities: Nickel

Secondary Commodities: Copper, Platinum, Palladium

Location

Township or Area: Kenogaming

Latitude: 48° 10' 28.77" Longitude: -81° 56' 49.84"

UTM Zone: 17 Easting: 429584.06 Northing: 5336146.83 UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42A04NW

Point Location Description: Flat outcrop with a number of small pop hole along the length of the outcrop.

Location Method: Based on Assessment

Access Description: Easy access is possible as the occurrence is located adjacent to a secondary logging road a short distance east from the Kenogaming Main Haul Road. The turn-off onto the secondary logging road from the main haul road is immediately east - southeast of the bridge across the Crawford River.

Exploration History

1947 Little Long Lac Gold Mines carried out a geological mapping program over the area and drilled a number of targets in the search for gold. Their best result was 1.4 g/t. 1957 Johns Manville performed a magnetic survey and mapped the area in the search for asbestos. Two years later a number of targets northeast of the occurrence were drill tested. 1960 Kukatush Mining Corp. carried out a ground magnetic survey over the area in the search for iron ore. This survey was followed up by a diamond drill program. 1983 Two airborne surveys, one a magnetic and VLF-EM survey, and the other a VLF-EM and tricoil EM survey were flown over large areas which included the showing by the HWS syndicate and A. Sheppard. 1987 Glen Auden together with their joint venture partner Goldrock Resources carried out a large geological mapping and lithogeochemical survey which enclosed the showing over a two year period in the search for gold. 1989 Nickel mineralization was discovered by Jim Ireland. 1989 American Barrick optioned the Glen Auden property, relogged and resampled some holes originally drilled by Kukatush in addition to sampled collected in the field. These samples were assayed for gold. 1990 D. Morin and partners stripped a number of outcrops including the nickel showing and blasted a number of trenches. During this period a number of companies examined the showing and obtained up 0.3 % Cu, 1.4% Ni, 0.17 ppm Pt, 0.31 ppm Pd, with traces of silver. The property was then mapped by Timmins Nickel. In the following year a number of holes were drilled on their own account under the exposed mineralization which returned low nickel and gold values over narrow widths. 2012: Prodigy Gold Inc. – Aerial electromagnetic and magnetic surveys.

Assessment Work on File

Assessment Work on File
Office File Number	Online Assessment File Identifier	Online Assessment File Directory
T-187 / 63A.35	42A04NW0169	42A04NW0169
T-2726 / 25	42A04NW0108	42A04NW0108
T-2799 / 2.6342	42A04NW0028	42A04NW0028
T-6563 / 2.53481	20000008321	20000008321
T-2722 / 2.10452	42A04NW0018	42A04NW0018
T-2726 / 63.5992	42B09SW0019	42B09SW0019
T-669 / 63.1052	42B01NE0125	42B01NE0125
T-2799 / 2.8066	42B01NE0105	42B01NE0105

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

Geological Age: Neoarchean

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Dec 07, 2005 (S Fumerton) - A week foliation occurs parallel to the cumulate banding as do a series of deeply etched joints.

Apr 16, 2018 (A Wilson) - The showing consists of cumulate-textured dunites differentiating into melagabbro isoclinally interfolded with magnetite-chert iron formation and felsic tuffs of the underlying Hanrahan Assemblage. Geochemical analyses of the ultramafic rocks in the vicinity of the mineralization show REE patterns that are distinctivley different than those of similar, but unmineralized, ultramafic rocks in the same unit to the northeast.

Lithology

Lithology Data
Rock Type	Rank	Composition	Texture	Relationship
Ultramafic lava flow-unsubdivided	1	Komatiite	Cumulate	Host
Peridotite	2	Peridotite		Contains

Lithology Comments

Apr 16, 2018 (S Fumerton) - The host rock is a medium grained ultramafic horizon located between two iron formation horizons. The host rock has an off white weathered surface combined and a dark charcoal grey fresh surface. Locally there is a faint elephant skin weathering concentrated near some joints. In the outcrop and visible on the weathered surface are discontinuous trails of rusty clots positively weathered which may represent poorly developed cumulate banding. In places along the margins of some early fractures hard compact nephrite like material has developed but is not conspicuous. To the southwest of the outcrop there is a band of banded iron formation trending east southeast which separates the komatiite from a felsic to intermediate crystal tuff.

Mineralization

Mineralization and Alteration
Rank	Mineral Name	Class	Economic Mineral Type	Alteration Mineral Type	Alteration Ranking	Alteration Intensity	Alteration Style
1	Pyrrhotite	Economic	Ore
2	Pentlandite	Economic	Ore
	Serpentine	Alteration		Serpentinization	1	Medium	Network

Mineralization Comments

Dec 07, 2005 (S Fumerton) - Sulphides form less than 1 to 2% of the outcrop and are typically disseminated though locally form a poorly developed net texture. The net texture occurrence corresponds to the discontinuous trails of clots observed on the weathered surface. These clots form up to 5% of the outcrop and the sulphides form 5 to 10% of the clots. The sulphide grains are much less than 1mm in size. Sulphides consist of disseminated pyrrhotite, lesser pentlandite and trace amounts of chalcopyrite. Pentlandite also occurs as 1 to 3mm wide discontinuous streaks trending perpendicular to layering. Late fractures subparallel to the pentlandite streaking are also mineralized with pentlandite. Chalcopyrite occurs as small grains in discontinuous trails along fractures.

Feb 05, 2016 (A Wilson) - Mineralization consists of 1-2% disseminated sulphides which locally form a poorly developed net texture containing up to 10% sulphides. The sulphides consist of pyrrhotite and minor amounts of pentlandite. Late fractures are also mineralized with pentlandite. Grab samples returned assay values of up to 0.94% Ni, 0.10% Cu 0.27 g/t Pt and 0.2 g/t Pd. A grab sample taken from the muck pile in 1992 by the OGS returned assays of 0.069 g/t Au, 0.167 g/t Pd, 5045ppm Ni and 0.1696ppm Cu.

Mineral Record Details

Classification
Rank	Classification
5	Magmatic

Characteristics
Rank	Characteristic
5	Disseminated

Mineral Zones - Size and Shape

Zone Name: Detour Lake - Rank 1
Shape	Length	Thickness	Depth	Strike	Dip	Plunge	Trend	Age	Reference
Tabular	30	3	60	310	80			N/A	N/A

Site Visit Information

Date: May 12, 1989

Geologist: J Ireland

Notes: While checking progress on stripping by Glen Auden, a brief examination was made for new outcrop exposures for inclusion in upcoming field tours planned for the coming field season. During this visit a nickel showing was discovered and selected samples collected. American Barrick intends to further evaluate the occurrence as part of their ongoing exploration program. [ PRECIS ]

Date: Jul 30, 1992

Geologist: S Fumerton

Notes: Since the last visit by Jim Ireland, the outcrop has been stripped and six small pop trenches have been blasted in the flat outcrop.

References

File - Resident Geologist files 1980, air photos

Publication Number: Date: 1996

Author:

Publisher Name:

Location:

Map - Precambrian Geology, Northern Swayze Greenstone Belt

Publication Number: M2627 Scale: 1:50,000 Date: 1995

Author: Ayer J.A.