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Ontario Geological Survey
Permanent Link to this Record:
MDI52A10NE00041
| Record Name(s) | Pearl Lake Quarry - 1902 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect Without Reported Reserves or Resources |
| Date Created | 1996-Dec-15 |
| Date Last Modified | 2021-Nov-16 |
| Created By | |
| Revised By |
Primary Commodities: Aggregate
Township or Area: McTavish
Latitude: 48° 40' 28.38" Longitude: -88° 38' 43.92"
UTM Zone: 16 Easting: 378861.48 Northing: 5392584.7 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A10NE
Point Location Description: Quarry
Location Method: Data Compilation
Access Description: GENERAL LOCATION: The quarry site is located in Mining Location E, McTavish Township, near Pearl Lake, just west of Hwy. 11-17 (Figure 13). ACCESS: A secondary road goes to the quarry site off Hwy. 11-17, approximately 1.5 miles east of Pearl.
1902: The site was opened by a Buffalo Syndicate as a source for crushed rock. Seventy men were employed at the site. The rock was loaded onto cars, on a spur off the C.P.R., and hauled to Fort William to be used in the concrete in the elevators. 1909: Eighteen men were employed at the site to extract blocks that were taken to the Stanworth-Martin fabricating plant in Port Arthur. No assessment reports were found on file.
Province: Superior
Subprovince: Quetico
Geological Age: Archean
Dec 07, 2005 (W Bellinger) - 6) GENERAL GEOLOGY AND STRUCTURE: The quarry is within an Archean pluton called the Hilma Lake Granite. This unit has intruded metasediments and migmatitic metasediments.
| Rock Type | Rank | Composition | Texture | Relationship | Quartz Monzonite | 1 | Equigranular To Porhyritic | Host |
|---|
Dec 07, 2005 (W Bellinger) - MINERALOGY:It is a quartz monzonite in composition. JOINTING:The stone at the quarry is very fractured and jointed. COLOUR: The granite is red. TEXTURE:The stone is equigranular to porphyritic and medium to coarse grained. OTHER FEATURES: Inclusions and pegmatitic veins are common. PHYSICAL PROPERTIES: Pearl Lake Red Granite Compressive Strength: 23,889 psi (164.54 MPa). Modulus of Rupture: 2,491 psi (17.24 MPa). Absorption: 0.04%. Bulk Specific Gravity: 2.63. Testing conducted by Geoscience Laboratories, Ontario Geological Survey, Toronto 9) CHEMICAL ANALYSIS: , Sample No. 85MCK-0008: 74.14 SiO2, 14.47 Al2O3, 1.37 Fe2O3, 0.02 MnO, 0.52 MgO, 0.49 CaO, 2.86 Na2O 5.93 K2O, 0.19 TiO2, 0.00 P2O5. Analyses by Geoscience Laboratory, Ontario Geological Survey, Toronto.
Map - Geological series, Dorion-Wolf Lake area (eastern part), District of Thunder Bay
Publication Number: P0995 Scale: 1:15,840 Date: 1975
Author: McIlwaine W.H., Tihor L.A.
Publisher Name: Ontario Division of Mines
Location:
Mono - Dimensional Stone Occurrences and Deposits in Northwest Ontario
Publication Number: OFR5890 Page: 77-79 Date: 1994
Author: Hinz P., Landry R.M., Gerow M.C.
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