Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42D14NE00007

Record: MDI42D14NE00007

General

Commodities

Primary Commodities: Copper

Secondary Commodities: Zinc, Silver, Gold

Location

Township or Area: Lower Aguasabon Lake Area

Latitude: 48° 53' 25.11"    Longitude: -87° 13' 5.7"

UTM Zone: 16    Easting: 484001.7   Northing: 5415284.79    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42D14NE

Point Location Description: Trenches, diamond drill holes.

Location Method: Conversion from MDI

Access Description: The occurrence is approximately 10.5 km north-northeast of Schreiber and is located about 1 km northeast of Ansell Lake and 2.4 km west of Syenite Lake. The property is accessible by helicopter to the showing area or by float plane to McCuaig Lake, 1.6 km to the southeast.

Exploration History

1921: Surface work was completed in the area of the occurrence. 1937: The occurrence was staked by W. Kemp and M. Mitto. 1950: A. Mitto staked more claims. A group of 39 claims was optioned to East Sullivan Mines Ltd., who carried out geological mapping and sampling. A total of three holes (305 m total) were drilled. 1954: 3 holes (333m total) were drilled by Ascot Metals Corporation. 1956-67: Claims were cancelled, restaked and cancelled. 1968: The area was staked by J. Jerome. All interest was transferred to Federal Wire and Cable Company Limited. 1969: Federal Wire and Cable Co. Ltd. transferred all interest to H.K. Porter Co. (Canada) Ltd. 1969-70: Geophysical (EM) surveys were conducted. 1970-1982: The ground changed hands several times. 1983: Chapel Bay Exploration carried out ground VLF, mag and geochemical surveys. 1983: All interest was transferred to Flint Rock Mines Ltd (12 claim group). Trench sampling and surface prospecting were carried out. 1984: A ground geophysical survey (EM and mag) was conducted. 1985: A prospecting and sampling program was conducted by Flint Rock Mines Limited. 1988: Ansell Lake Resources Inc. conducted line cutting, VLF, magnetometer and IP geophysical surveys. 1989: Ansell Lake Resources Inc. diamond drilled 5 holes totalling 645 m.

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 'volcanic associated massive sulphide (VMS)' deposit. The occurrence lies within the Shebandowan-Wawa Greenstone belt. The andesites are commonly massive. Several exposures of pillow lava with infrequent amygdules were observed. Minor mineralization was occasionally found, associated with diorite and quartz porphyry intrusives. The dacites are a quartz bearing phase of the andesite and contain clear quartz phenocrysts. Conformable bands of andesitic agglomerate and rhyolitic tuff were observed locally. The general trend of the volcanics is 060 degrees and dips are steep. Pillows indicated tops to the south. The diorite bodies are conformable lenses of varied size. Quartz porphyry (aplite) dykes of varied size were found, striking 050 degrees and 330 degrees, the latter being small usually. The so called syenite of the area is quartz bearing and grades into granite. A fault scarp separates the volcanics and greenstones in the eastern sector of the group. The youngest intrusives found are north-south trending diabasic dykes of varied size, occasionally olivine-rich. Only a small amount of local mineralization was found. Several pits had been opened up in the area to the southeast of the large diorite mass near the camp on Ansell Lake. The mineralization is in andesite and quartz porphyry. The most important showing, the No. 7, was a 3 foot wide shear containing quartz veins in basalt. The strike of the shearing was N80 degrees E and the dip 75 degrees SE. Schnieders et al. (1993) stated that in the vicinity of the showings, the host rocks are locally pillowed, mafic metavolcanics. A strong foliation and flattening fabric is developed at 80/85 degrees S. Several test pits have revealed base metal mineralization over an are approximately 120 by 180 m in size.

Lithology

Lithology Comments

Dec 07, 2005 (B Nelson) - Andesites: commonly massive, fine to medium grained, medium green, weathering dark brown to gray. Diorite: the rock is massive, medium to coarse grained, dark green, weathering dark green. The porphyritic rocks are similar to the dacite porphyry but can be distinguished in hand specimen by bluish quartz phenocrysts. Both light and dark colored phases occur, weathering a light grey with phenocrysts in relief. The so-called syenite of the area is quartz bearing and grades into granite. It is massive, medium grained, pink and weathers to a pinkish grey. The diabase dykes are massive, medium grained, dark green and weather to a yellowish green.

Mineralization

Mineralization Comments

Dec 07, 2005 (B Nelson) - Showing #4: 0.26% Cu, 0.01oz/ton Au over 9 feet. Showing #5: 0.25% Cu, trace Au over 36 feet. Showing #7: 1.34% Cu, trace Au, 0.13 oz/ton Ag over 2 feet. 0.96% Cu, 0.01 oz/ton Au, trace Ag over 15 feet. 1.02% Cu, trace Au, 0.24 oz/ton Ag over 15 feet. 1.16% Cu, 0.01 oz/ton Au, 0.40 oz/ton Ag over 15 feet. Showing #8: 0.40% Cu, trace Au, 0.16 oz/ton Ag over 22 feet. The weighted average grade over 14.3 m for Showing #7 was 1.06% Cu. Assays of 0.06% Cu and 0.3 oz/ton Ag were obtained from a 3 m drill core section. Sampling by Resident Geologist's staff in 1992 returned the following results: 92 BBM -04: 180 ppm Cu; 2210 ppm Zn; nil Au 92 BBM -05: 1817 ppm Cu; 255 ppm Zn; nil Au.

Mineral Record Details

Site Visit Information

Date: Feb 06, 1997

Geologist: B Nelson

Notes: Resident Geologist's staff visited the occurrence August 12, 1992.

References

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

Publication Number: P2417 Scale: 1:15,840    Date: 1981

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: 114-120  Date: 1996

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

Publisher Name: Ontario Geological Survey

Location:

Map - Schreiber area, District of Thunder Bay, Ontario

Publication Number: ARM47J Scale: 1:31,680    Date: 1997

Author: Bartley M.W., Harcourt G.A.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - Copper, nickel, lead and zinc deposits of Ontario

Publication Number: MDC012 Page: 320  Date: 1969

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:

Part - The northeastern part of the Schreiber area

Publication Number: ARV47-09.002 Page: 29-40  Date: 1998

Author: Bartley M.W.

Publisher Name: Ontario Dept. of Mines

Location:

File - Schreiber-Hemlo Resident Geologist Mineral Deposit Files, Thunder Bay office

Publication Number: Min Dep Date:

Author:

Publisher Name:

Location:

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:

Mono - Iron deposits of Ontario

Publication Number: MDC011 Date: 1968

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:

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Ministry Contact Information

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