Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42D09NW00017

Record: MDI42D09NW00017

General

Mineral Record Identification
Record Name(s) Lytton Minerals C Zone - 1983, Porphyry Zone - 1983
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Mar-26
Date Last Modified 2022-Mar-02
Created By
Revised By

Commodities

Primary Commodities: Gold

Secondary Commodities: Molybdenum



Location

Township or Area: Pic

Latitude: 48° 39' 22.02"    Longitude: -86° 17' 58.25"

UTM Zone: 16    Easting: 551587   Northing: 5389466    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42D09NW

Point Location Description: Collar location of DDH P84-43 from Assessment file 42D09NW0017

Location Method: Data Compilation



Exploration History

1979: V. Stenlund staked the claims and conducted diamond drilling. 1983: Lytton Minerals Ltd. optioned the property and carried out VLF-EM and magnetometer surveys, geological mapping, trenching, and sampling. 1984: Lytton Minerals drilled 41 DDH totaling 8122 m. 1990: Stenlund Resources Ltd. drilled 3 DDH totaling 641.9 m. 1991: Stenlund Resources Ltd. drilled 2 DDH totaling 323.7 m. 1997: Teck Exploration Ltd. drilled 6 DDH totaling 2966 m.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
63.4629 42D09NW0017 42D09NW0017
56 42D09NW0007 42D09NW0007
57 42D09NW0002 42D09NW0002
2.19129 42D09NW2004 42D09NW2004
2.6231 42D09NW0089 42D09NW0089
63.4462 42D09NE0150 42D09NE0150

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Schreiber-Hemlo

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Feldspar Porphyry 1 Feldspar
Schist-Unsubdivided 2 Chlorite Host
Mylonite/Fault Gouge/Pseudotachylite 3 Host
Vein 4 Quartz-Carbonate Host
Mafic lava flow-unsubdivided 5 Adjacent

Mineralization

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

Mineralization Comments

Dec 18, 2018 (Therese Pettigrew) - The C-Zone mineralization occurs at or near the footwall of the feldspar porphyry. Mineralization consists of layers and lenses of quartz up to 1 cm thick in a chlorite schist (possibly a sheared mafic metavolcanic). The quartz-rich layers contain molybdenite. Pyrite (5 to 10%) occurs as 1 to 3 mm cubes which have been deformed and possibly rotated in foliation. The zone appears to crosscut the mafic metavolcanics and the feldspar porphyry. Late quartz-carbonate veins cut the foliation in the zone. Most of the rocks north of the railway tracks consist of heavily carbonated mafic metavolcanics which have a felsic appearance. The best diamond drill intersection obtained was 17.0 feet of 0.19 ounce gold per ton (5.18 m of 5.91 gpt Au) (Patterson et al., 1986; Assessment file 42D09NW0017). The zone strikes at 070 degrees, and dips about 65 degrees north (Assessment file 42D09NW0017). The Porphyry Zone is 150 m north of the C Zone and is a mylonite, previously called a thinkly bedded hematitic ash tuff. The unit is highly foliated and locally folded. It is comprised of fine-grained, red (hematitic) thinly laminated chlorite and felsic layers. In drill core, the mylonite grades southward into a sheared and deformed feldspar porphyry. The porphyry contains 10% white quartz veins from 1 to 5 cm wide with minor pyrite and 3-5% black tourmaline. A value of 0.19 ounce gold per ton across 23.5 feet, including 0.27 opt Ay over 13.5 feet has been intersected within the porphyry, near the hanging wall (Patterson et al., 1986; Assessment file 42D09NW0017). DDH 90-GM-3 assayed 12 gpt Au over 12 cm at 126.73 m (Assessment file 42D09NW0007).



Mineral Record Details

Characteristics
Rank Characteristic            
1 Sheared

References

Article - Thunder Bay Resident Geologist area, North Central Region

Publication Number: MP128.004 Scale:     Date: 1997

Author: Patterson G.C., Mason J.K., Schnieders B.R.

Publisher Name: Ontario Geological Survey

Location:


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