Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001934

Record: MDI000000001934

General

Commodities

Primary Commodities: Gold, Platinum Metals, Copper

Secondary Commodities: Silver

Location

Township or Area: Drury

Latitude: 46° 25' 21"    Longitude: -81° 30' 5.04"

UTM Zone: 17    Easting: 461472   Northing: 5141114    UTM Datum: NAD83

Resident Geologist District: Sudbury

NTS Grid: 41I05NE

Point Location Description: shaft

Location Method: Data Compilation

Access Description: Proceed north 4.8km on regional road #4 from its intersection with the Spanish River Road. Follow the powerline right-of-way 2.2km west either on foot or by ATV. Bush crash 1.3km south.

Exploration History

1896-98: John Dwyer Gold Mining Co. – shaft sinking, prospecting, sampling. 1950; Acme Oil and Gas Ltd. –mapping, ground geophysics, stripping, diamond drilling. 1955: Garrison Harbour Gold Mines – DD-1 – 649 ft. 1969: Acme Oil and Gas – mapping, ground geophysics. 1999: Wallbridge Mining Company Ltd. – airborne geophysics. 2000-2001: Mustang Minerals Corp. – magnetometer survey, mapping, sampling.

Assessment Work on File

Geology

Province: Southern

Subprovince: Sudbury Structure

Supergroup: Sudbury Igneous Complex, Main Mass

Geological Age: Paleoproterozoic  

Lithology

Lithology Comments

Jun 27, 2016 (A Wilson) - Five parallel east-striking quartz veins occur in an area underlain by altered and brecciated gabbro. All but Vein No. 1 contain nil to low gold and silver values. The No 1 Vein is exposed for about 400 ft. and is up to 40 ft. in width. In a 38 ft. shaft, the vein width varies from 15 ft. as surface to 8 ft. at the bottom.

Mineralization

Mineralization Comments

Jun 27, 2016 (A Wilson) - Assays of up to 1.41 oz/t Au were reported for the No. 1 vein. Quartz taken from 15 ft from surface assayed $4.60 and quartz taken from the bottom of the shaft assayed $24.00. Quartz taken from a shaft near the west boundary of the property assayed $14.00 to $26.00 gold. The lithogeochemical sampling, which was conducted in the fall 2000 and summer 2001, delineated a weakly anomalous PGE zone (46 to 317 ppb Pd+Pt) hosted within the central part of the intrusion. Within this zone, the PGE mineralization, which is associated with nil to trace sulphides (pyrrhotite, pyrite chalcopyrite), occurs in a medium to coarse-grained gabbrolayer. Chloritized and silicified deformation zones in feldspar-porphyritic gabbro along the northeast boundary of the property contain anomalous PGEs (394 ppb over 5 m and a grab sample of 3536 ppb PGMs). In addition, the widespread elevated background values and the presence of an anomalous zone, suggests that other parts of the intrusion have the potential of hosting an economic PGE deposit. Structural discontinuities, such as northeast-trending fault/shear zones are additional favourable sites for remobilized PGE mineralization. A mineralized quartz vein along one shear zone returned 4.3 % Cu, 507 ppb Au and 12 ppb Pd. One of the main objectives of this study was to evaluate the PGE-Ni-Cu potential of the Drury intrusion. To do this, a total of 202 grab samples were collected and analyzed for Pd, Pt, Au, Cu, Ni and Co. The best PGE values, though only weakly anomalous to anomalous (46 to 317 ppb Pd+Pt), indicate PGE enrichment of the fractionated/cumulate gabbro-anorthosite layer. Altered deformation zones, as well, are enriched in PGEs. The Cu and Ni values range from background to weakly anomalous within the intrusion. The highest Cu value (568 ppm) was returned by a sample (DPOO-34513), taken from a gabbro-anorthosite layer (L6+125W/4+50S) occurring within the central part of the intrusion. A highly anomalous copper-gold value (4% Cu, 507 ppb Au) however, was returned from a quartz vein along a fault zone.

Mineral Record Details

References

Map - Drury Township, District of Sudbury

Publication Number: P0134 Scale: 1:15,840    Date: 1997

Author: Card K.D.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Hyman and Drury townships, Sudbury District

Publication Number: M2055 Scale: 1:31,680    Date: 1997

Author: Card K.D.

Publisher Name: Ontario Dept. of Mines

Location:

Folio - Drury Township, District of Sudbury

Publication Number: GDIF285 Date: 1997

Author: Sudbury RGO

Publisher Name: Ontario Geological Survey

Location:

Part - Ore deposits near the north shore of Lake Huron

Publication Number: ARV38-07.001 Page: 36-37  Date: 1998

Author: Moore E.S.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Mines of eastern Ontario

Publication Number: ARV07-01.004 Page: 87-88  Date: 1998

Author: Slaght A.

Publisher Name: Ontario Bureau of Mines

Location:

Map - Geology, Sudbury bedrock compilation, Ontario

Publication Number: OF 4570 Scale: 1:50,000    Date: 2005

Author: Ames, D E; Davidson, A; Buckle, J L; Card, K D

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/221501

MonoMap - Geology of Hyman and Drury townships, District of Sudbury

Publication Number: R034 Page: 34  Date: 1997

Author: Card K.D.

Publisher Name: Ontario Dept. of Mines

Location:

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For detailed information regarding this mineral record please contact the Sudbury Resident Geologist District Office