Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42D14NE00009

Record: MDI42D14NE00009

General

Commodities

Primary Commodities: Molybdenum, Gold

Secondary Commodities: Copper, Zinc

Location

Township or Area: Lower Aguasabon Lake Area

Latitude: 48° 59' 46.04"    Longitude: -87° 1' 19.64"

UTM Zone: 16    Easting: 498381.83   Northing: 5427024.96    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42D14NE, 42E03SE

Point Location Description: Trenches and diamond drill holes.

Location Method: Conversion from MDI

Access Description: The showing are located approximately 0.4 km west of the central western shore of Owl Lake at a point about 26 km northeast of Schreiber (claim map G-599, Lower Aguasabon Lake). The occurrence is located about 5 km east of the Kimberly-Clark access road which extends north of Terrace Bay. A bush road heads east to the Aguasabon River, which may be crossed by boat. An old trail leads several km to Owl Lake. As well, access may be gained by aircraft to Owl lake.

Exploration History

1956-57: The occurrence was staked by D. Rainville as claims TB81071, 81074. 1959: Claims TB96393 and 96187 were staked by A.S. McMillan and G.F. Kydd respectively. 1960: All interest was transferred to R.M. Butler (Empire Explorations). Geophysical (magnetometer, self potential) surveys were conducted. Geological mapping was undertaken, and trenching and packsack diamond drilling carried out. 1963: The claims lapsed and the area was restaked by J.J. Sax. 1965: All interest was transferred to H. Shleisinger (Martin-Hunt Mining Limited) as part of a 9-claim group. A horizontal loop EM survey was conducted. A total of three diamond drill holes (106.7 m) was drilled on claim TB109491. S. Cowan staked claim TB123880. 1966: J.F. Morton staked TB128156 and all interest was transferred to R.S. Hunt (Martin-Hunt Mining Limited). 1967: The showings were restaked by S. Cowan as TB133191 and 13835. 1968-69: Manual and mechanical stripping, trenching and Cobra drilling were carried out. 1973: The claims lapsed. 1982: The showings were restaked by C.M. Schulze as part of a larger claim group, and all interest was transferred to Noranda Exploration Company Limited. 1983: An airborne geophysical (magnetometer and EM) survey was conducted. 1984: The claims lapsed. 1990: Reconnaissance prospecting and sampling was carried out by D. Christianson and E. Christianson. 1997: Prospecting and sampling conducted by B. Fowler and M. Shuman.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Schreiber-Hemlo

Geological Age: Archean  

Geology Comments

Dec 07, 2005 (B Nelson) - The occurrence is classed as a 'calc-alkalic porphyry' deposit. The consolidated rocks of the area are Pre-Cambrian in age and consist of a narrow band of Keewatin-type lavas and pyroclastics bordered by a narrow fringe of sediments and which are intruded by granite, porphyry and diorite. The greenstone belt is almost enclosed by extensive intrusions of granite and syenite. The principal feature of the property is a molybdenite zone on claim TB109491 which has been exposed in a series of trenches on the west side of a hill for approximately 100 feet. The molybdenite mineralization is within a quartz-rich zone of a granite dyke. Both the mineralized zone and the granite dyke strike in an east-west direction, the width of the molybdenite mineralization varying from one foot to approximately three feet. The granite is enclosed by intermediate tuffaceous sediments. Carter (1982) noted that mo mineralization occurs in granitic rocks (massive leucocratic, medium to coarse-grained biotite granite, aplite and pegmatite dykes) and quartz veins of variable size...near the contact with mafic rocks. A number of quartz veins are noted to occur on the property, some of which carry low gold values. Where the quartz vein enters the volcanics to the east, considerable gossan has been formed, in some places a few inches thick. The volcanics to the south of the granite dyke have also been heavily sheared in an east-west direction, and contain a small amount of py which have also produced patches of gossan within the volcanics. A self-potential survey of a portion of the property has revealed an anomalous conditions for a length of 400' in an E-W direction, coinciding with the sulphide mineralization exposed in the pits. At the eastern end of the anomaly, there is an abrupt swing to the south of the higher readings.

Lithology

Lithology Comments

Dec 07, 2005 (B Nelson) - The granite is enclosed by 'intermediate tuffaceous sediments'. The granite is pegmatitic in character, consisting principally of quartz and feldspar, with a predominance of quartz.

Mineralization

Mineralization Comments

Dec 07, 2005 (B Nelson) - Although no specific grade values have been noted, it is indicated that no economic molybdenum copper mineralization has been discovered. Elliott (1965) noted that one (packsack) diamond drill hole section assayed by Empire Explorations in 1960 returned 1.52 m of 0.186 oz/ton Au. Three holes were drilled totalling 353 feet at the western extremity of the zone, and confirmed the presence of both massive and disseminated py and po. However, mo mineralization exposed on surface was not encountered in the drilling. Drill logs also noted that py and po commonly comprised between 25% and 75% of the drill core section and were usually oriented parallel to schistosity. Samples taken by Resident Geologist personnel returned the following results: 90 BTP -01: 0.016 oz/t Au; 0.006% Cu; 0.017% Zn. 90 BTP -02: 0.008 oz/t Au; 0.022% Cu; 0.054% Zn. 90 BTP -06: trace Au; 0.004% Cu; 0.005% Zn. 90 BTP -07: 0.004oz/t Au; 0.010% Cu; 0.281% Mo 90 BTP -08: 0.012 oz/t Au; 0.011% Cu; 0.026% Zn.

Jun 17, 2019 (Therese Pettigrew) - Sample 4634 collected by E. Christianson in 1990 returned 3100 ppm Cu (Assessment report 42D15NW0002).

Mineral Record Details

Site Visit Information

Date: Feb 07, 1997

Geologist: B Nelson

Notes: Resident Geologist personnell visited the occurrence July 31, 1990.

References

File - Resident Geologist Mineral Deposit Files

Publication Number: Min Dep Date:

Author:

Publisher Name:

Location: Thunder Bay RGP

Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District

Publication Number: M2232 Scale: 1:253,440    Date: 1973

Author: Carter M.W., McIlwaine W.H., Wisbey P.A.

Publisher Name: Ontario Division of Mines

Location:

Map - Cairngorm Lake area, Thunder Bay District

Publication Number: M2112 Scale: 1:31,680    Date: 1997

Author: Walker J.W.R.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Geological series, Precambrian geology of the Terrace Bay area, northeast sheet, Thunder Bay District

Publication Number: P2557 Scale: 1:15,840    Date: 1982

Author: Carter M.W.

Publisher Name: Ontario Geological Survey

Location:

Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.

Publication Number: OFR5951 Page: 128-133  Date: 1996

Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.

Publisher Name: Ontario Geological Survey

Location:

Report an Error

We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.

Terms of Use

Please review our Terms of Use agreement for this data product.

Ministry Contact Information

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