Ontario Geological Survey
Permanent Link to this Record:
MDI000000002178
| Record Name(s) | Bearpad - 1990, East Showing - 1990 |
|---|---|
| Related Record Type | |
| Record Status | Occurrence |
| Date Created | 2018-Mar-02 |
| Date Last Modified | 2022-Jan-05 |
| Created By | Therese Pettigrew |
| Revised By | Therese Pettigrew |
Primary Commodities: Copper, Nickel
Township or Area: Pardee
Latitude: 48° 3' 31.42" Longitude: -89° 33' 31.17"
UTM Zone: 16 Easting: 309359 Northing: 5325994.99 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A04SE
Point Location Description: Location 1 showing in AFRI 52A04SW0102
Location Method: Based on Assessment
1990: M. Luski conducted prospecting and sampling and drilled 3 DDH totaling 400 m. 1993: M. Luski conducted prospecting, magnetometer, and VLF-EM surveys. 1994: M. Luski conducted prospecting, and magnetic and EM geophysical surveys. 1999: M. Luski conducted prospecting and sampling. 2000: M. Luski conducted sampling. 2004: M. Luski and L. Hordy conducted prospecting.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.13851 | 52A04SW0102 | 52A04SW0102 |
| 2.13100 | 52A04SW0103 | 52A04SW0103 |
| 2.21002 | 52A04SE2010 | 52A04SE2010 |
| 2.15720 | 52A04SE0001 | 52A04SE0001 |
| OP93-736 | 52A04SE0003 | 52A04SE0003 |
| 2.29449 | 20000000317 | 20000000317 |
| 2.20242 | 52A04SE2008 | 52A04SE2008 |
Province: Southern
Formation Group: Animikie Group
Geological Age: Paleoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Gabbro | 1 | Gabbro Dyke | Host |
|---|---|---|---|---|
| Mudstone | 2 | Shale | Adjacent |
Mar 02, 2018 (Therese Pettigrew) - The property in underlain by sub-horizontal greywackes and shales of the Rove Formation crosscut by a northeast-trending vertical dipping diabase dyke. The greywacke is grey to grey brown, fine-to-medium grained massive and contains carbonate-filled fractures. The shale is black to dark grey, fine-to-very-fine grained, massive and finely bedded. The sedimentary bedding ranges from centimeter to tens of centimetres in thickness. The greywacke locally exhibits graded bedding indicating tops to be upward. The diabase dyke ranges from black to dark grey fine- to medium-grained with minor pegmatitic sections. The composition of the dyke is 40 percent feldspar, 30 percent brown pyroxene, 20 percent chlorite, five percent biotite with minor talc and accessory minerals. Sulphide mineralization within the dyke ranges from one percent fine-grained disseminated pyrrhotite to 40 percent irregular immiscible blebs of pyrrhotite with one percent chalcopyrite on fracture planes within the pyrrhotite. The contact of the diabase dyke to the sediments is a hybrid zone of disrupted sediments either as fragments within the diabase or amphibole facies metamorphic grade greywacke (AFRI 52A04SE2010).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrrhotite | Economic | Ore |
Mar 02, 2018 (Therese Pettigrew) - Mineralization is present as disseminated pyrrhotite within coarser and altered gabbro or as massive bands. The mineralization is generally discontinuous and forms pods and zones within the gabbro close to the contact with the sediments. Grab samples collected from this showing returned assays of up to 6080 ppm Cu and 4310 ppm Ni. DDH PL-90-03 had mineralization from 54.5 to 105.0 feet (16.6-32.0 m) and returned assays of up to 0.25% Cu and 0.21% Ni over 4.1 feet (1.25 m) (AFRI 52A04SW0102).
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For detailed information regarding this mineral record please contact the Thunder Bay South Resident Geologist District Office