Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000002358| Deposit Name(s) | Moshkinabi Zone - 1999 |
|---|---|
| Deposit Status | occurrence |
| Date Created | 2019-Oct-31 |
| Date Last Modified | 2019-Oct-31 |
| Created By | T Pettigrew |
| Revised By | T Pettigrew |
Primary Commodities: nickel, copper, palladium
Secondary Commodities: platinum, gold, cobalt
Township or Area: Roberta
Latitude: 49° 7' 42.95" Longitude: -85° 31' 44.88"
UTM Zone: 16 Easting: 607304 Northing: 5442793 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 42F04SE
Point Location Description: Assessment report 42F03NW2002
Location Method: data compilation
1964: Falconbridge Nickel Mines Ltd. conducted an airborne EM and magnetic survey. 1968: Falconbridge drilled 1 DDH totaling 58.84 m. 1998-99: prospector G. Gionet staked the property and carried out beep-mat surveys and sampling, discovering the Moshkinabi Zone. 2000: Freewest Resources Inc. optioned the property and carried out prospecting, discovering the Kejimalda Zone. 2001: Freewest carried out trenching and sampling. 2002: property reverted back to the Gionets. 2003: Platinum Group Metals Ltd. optioned the property and drilled 3 DDH (not filed for assessment), then dropped the property. 2005-06: G. Gionet carried out beep-map surveys. 2006: CRVD Inco Ltd. optioned the property and carried out sampling, mapping, trenching, soil sampling, and EM surveys. 2007: property reverted back to G. Gionet and partners. 2008: Pelangio Exploration Inc. optioned the property from G. Gionet, M. Gionet, and M. Gionet. 2010: Pelangio drilled 5 DDH totaling 991.22 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.47633 | 20000006224 | Open |
| 23 | 42F04NE0062 | Open |
| 2.23157 | 42F03NW2002 | Open |
| 2.20743 | 42F04NE2004 | Open |
| 2.34775 | 20000002093 | Open |
| 2.35728 | 20000002335 | Open |
Province: Superior
Subprovince: Wawa
Belt: Manitouwadge-hornepayne
Intrusion: Moshkinabi Lake Layered Complex
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| mafic intrusive | 1 | amphibolite, gabbro | host | |
| ultramafic intrusive | 2 | pyroxenite | host | |
| ironstone | 3 | chert-rich, magnetite-banded |
10/31/2019 (T Pettigrew) - The mafic rocks encountered in the area tend to be strongly deformed and foliated. In places they are noted to appear as gneissic but generally appear as amphibolites. They exhibit a sugary to salt-and-pepper texture and range from fine- to medium-grained and green to greenish brown in colour. Typically they are composed of hornblende+plagioclase+/-quartz+/-epidote+/-biotite and in some cases garnet. The chemical sedimentary units encountered in the area and in drilling appear as chert-rich, magnetite-rich banded silicate facies iron formations. They have been mapped at surface at two locations on the property where they are reported to be rusty and pitted in appearance. In drill core they appear to me mainly composed of bands of chert and amphibolite and contain up to 20-40% pyrite and pyrrhotite as well as minor chalcopyrite. Magnetite also occurs throughout the unit up to 20%. The unit is medium to strongly magnetic throughout with distinct contacts with the surrounding units. The iron formations occur in and around the contact with the mafic and ultamafic intrusions of the Moshkinabi Lake layered complex. The Moshkinabi Lake layered complex is composed of a suite of anorthositic to leuco-gabbroic, and gabbroic to melagabbroic to pyroxenite rocks with minor ultramafic intrusions. Although the layering is crude and deformed, the suite appears to grade from anorthositic in the south west to gabbroic and pyroxenitic to the north of the sequence. The Complex is however very structurally complicated with tight folding visible in the trenches excavated by Freewest on the nose grid of the property (Assessment report 20000006224).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | pyrite | economic | ore | ||||
| 2 | pyrrhotite | economic | ore | ||||
| 3 | chalcopyrite | economic | ore | ||||
| 4 | pentlandite | economic | ore |
10/31/2019 (T Pettigrew) - The Moshkinabi Occurrence is located about 260 m south of the eastern-most exposure of the Kejimalda Zone. It is hosted by variably sheared, and altered, weakly to moderately layered, medium- to coarse-grained pyroxenite and melagabbro, locally reduced to biotite-amphibole (actinolite-tremolite) schist. Disseminated and net-textured pyrrhotite, chalcopyrite and pentlandite are ubiquitous. The occurrence is surrounded by a weak, diffuse halo of anomalous to strongly anomalous PGE values, but it is not apparently connected to the Kejimalda Zone. Analyses from the occurrence grade up to 1016 Pd, 397 ppb Pt, 0.54% Cu, 0.11% Ni, and 183 ppb Co (Schnieders et al. 2000). Analyses obtained from the diffuse halo by Freewest Resources grade up to 548 ppb Pd, 906 ppb Pt, 0.48% Cu, and 0.13% Ni (Assessment report 42F03NW2002).
Publication - Report of Activities 1999, Resident Geologist Program, Thunder Bay South District, p. 33-34
Publication Number: OFR6005 Date: 2000
Author: Schnieders, B.R., Scott, J.F., Smyk, M.C. and O'Brien, M.S.
Publisher Name: OGS
Publication - Report of Activities, 2004, Resident Geologist Program, Thunder Bay South District, p. 22
Publication Number: OFR6148 Date: 2005
Author: Schnieders, B.R., Scott, J.F., Magee, M.A., Muir, T.L., Komar, C.
Publisher Name: OGS
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