Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000002356

Record: MDI000000002356

General

Mineral Record Identification
Record Name(s) Missing Link Extension - 1989
Related Record Type
Related Record(s)
Record Status Occurrence
Date Created 2019-Oct-31
Date Last Modified 2024-Apr-03
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Legault, Lapierre

Latitude: 49° 45' 8.86"    Longitude: -87° 27' 41.86"

UTM Zone: 16    Easting: 466747   Northing: 5511211    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 42E11NW, 42E14SW

Point Location Description: Map in Assessment report 42E14SW0047

Location Method: Data Compilation

Access Description: The property is accessible by travelling 7 km NE of Jellicoe on Highway 11 to the Kinghorn Road and north for approximately 6.5 km. The main trench lies along the west side of the Kinghorn Road just north of the Sturgeon River and 1 km west of Jory Lake.



Exploration History

1986: Canadian Gold Resources conducted an airborne magnetic and radiometric survey. 1989: showing was discovered by prospector M. Nelson. 1990: Freewest Resources Inc. optioned the property from M. Nelson and carried out ground magnetic and VLF-EM surveys, stripping, trenching, mapping, and sampling. 1999: Holt, Nelson and Savage did limited trenching. 1993: M. Nelson carried out trenching and prospecting. 2009: M. Nelson carried out stripping, trenching, and sampling. 2010: Sage Gold carried out stripping and sampling.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
OP93-044 42E14SW0047 42E14SW0047
2.42920 20000005222 20000005222
2.46309 20000005618 20000005618
63.6331 42E14SW0046 42E14SW0046
2.15537 42E14SW0045 42E14SW0045
2.13844 42E11NW0071 42E11NW0071
20000021376 20000021376
2.39951 20000003645 20000003645
2.44255 20000004543 20000004543
2.13579 42E14SW0004 42E14SW0004
63.6318 42E11NW8401 42E11NW8401

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Beardmore-Geraldton

Geological Age: Archean  



Geology Comments

Oct 31, 2019 (Therese Pettigrew) - The Missing Link Extension occurrence lies within the extreme north central portion of the main Beardmore-Geraldton belt just south of the eastern trace of the Paint Lake fault. It has been suggested by both Fekete (1990) of Freewest Resources Inc. and OGS Staff J. Mason and G. White that an east northeasterly splay of this prominent fault traverses the property (Mason and White, 1994).




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Intermediate lava flow-unsubdivided 1 Andesite Host
Vein 2 Quartz Host

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ArsenopyriteEconomicOre
2PyriteEconomicOre
3ChalcopyriteEconomicOre

Mineralization Comments

Oct 31, 2019 (Therese Pettigrew) - Variations in the degree and type of alteration and mineralization give this shear zone a banded appearance. Four distinct subzones were recognized: 1a, 1b, 1c and 1d. Subzone 1a consists of· weakly sheared, resistant andesite with weak to moderate chlorite/carbonate alteration. It is generally a pale green colour. The best result obtained from this subzone is 0.013 opt Au/0.9 m. Subzone 1b consists of moderately sheared andesite with weak to moderate chlorite/carbonate/silica aIteration which gives the rock a banded, bleached to rusty appearance. It averages about 4.0 m wide. The best assay for this subzone unit is 0.11 opt Au/1.0 m. This value is unusually high and is probably related to the fault that cross-cuts the shear zone. Subzone 1c is very similar to 1b in regard to alteration and appearance but is characterized by occasional quartz stringers with a general strike of 060°, conjugate to the direction of shearing. These stringers never exceed a width of 5.0 cm and are often pitted where ankerite or other carbonates have weathered out. Minor disseminated sulphides were noted in this subzone. Up to 0.52 opt Au/0.4 m was obtained from this subzone. Subzone 1d consists of a stockwork of quartz veinlets in a very sheared, altered and mineralized andesite. Knobs of intense silica alteration containing up to 20% sulphide poke through at very rusty, weathered intervals. Fine, disseminated arsenopyrite, pyrite and chalcopyrite are the main sulphide minerals. intense sericite alteration and oxidation occur in the rusty intervals. The quartz veins within this ·subzone are contorted into minor drag-folds. The abundance of quartz increases towards the fold hinge where it occurs in knobs bearing up to 15% chalcopyrite in coarse blebs. The best assays from this subzone are from grab samples of the silica/sulphide, 0.144 opt Au, and quartz/chalcopyrite, 0.2 opt Au, knobs in the fold hinge. This altered, sulphide-rich shear zone is also exposed in a smaller 3 m by 20 m long "north trench" approximately 120 m northeast of the main trench. The highest assay was obtained over the most intensely gossaned area and returned a value of 0.018 opt Au across 1. 3 m (Assessment report 42E11NW0071)



Mineral Record Details

References

Mono - Report of Activities 1993, Resident Geologists

Publication Number: OFR5892 Page: 13-15  Date: 1994

Author: Baker C.L., Dressler B.O., Mason J.K., Newsome J.W.

Publisher Name: Ontario Geological Survey

Location:


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