Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31D16SW00167

Record: MDI31D16SW00167

General

Mineral Record Identification
Record Name(s) Millward - 1971, Paterson - 2000
Related Record Type Simple
Record Status Occurrence
Date Created 1993-Mar-10
Date Last Modified 2022-Jan-05
Created By Q Unknown
Revised By A Wilson

Commodities

Primary Commodities: Zinc



Location

Township or Area: Cavendish, Cavendish, Cavendish

Latitude: 44° 49' 50.37"    Longitude: -78° 24' 31.06"

UTM Zone: 17    Easting: 704841   Northing: 4967406    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31D16SW

Point Location Description: Point 1.8 km northeast of Salmon Lake

Location Method: Data Compilation

Access Description: Access via Hwy 507 (south of Gooderham) 8 miles south to the Salmon Lake road junction. The property is about 2 miles west of the highway.



Exploration History

1971 ; W.T Millward: geology, mag and E.M. 1989:Northgate Exploration Limited – geological, geochemical. 1993: P.W. Pitman – blasting, trenching, IP survey, magnetometer and VLF surveys. 1997: Teck Exploration Ltd. – DD-5-535 ft.; assays.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
2.12692/W8909-47 31D16SW8531 31D16SW8531
2.15188/OPAP 93-615 31D16SW8730 31D16SW8730
OP93-615 31D16SW0002 31D16SW0002
2.14995/OP92-712 31D16SW8572 31D16SW8572
2.18356 31D16SW2001 31D16SW2001

Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Terrane: Elzevir

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Intermediate lava flow-unsubdivided 1 Host
Felsic lava flow-unsubdivided 2 Adjacent
Marble 3 Adjacent

Mineralization Comments

Jan 17, 2017 (A Wilson) - Showings number l and 2 were discovered in the summer of 1988 while showing number 3 was found during the 1989 program. Showing number 1, located 80 m southeast of post l of claim SO.2073044, consists of smithsonite coated boulders. The source of these boulders could not be traced either north or south of Salmon Lake due to extensive overburden coverage . Showing number 2 consists of smithsonite coated boulders, boulders containing bands with up to 3% sphalerite (visual observation), and outcrop containing weathered out pyrite and sphalerite grains with black hematite fracture fillings. Showing number 3 consists of smithsonite coated boulders and boulders with bands containing up to 1% sphalerite (visual estimate). Encouraging assay values (0.97% Zn and 3.00% Zn from showing number 2 and 1.07% from showing number 3) obtained were from 2 to 3 cm wide bands containing sphalerite mineralization in marble boulders at showings number 2 and 3. These boulders appear to be local and do not appear to have been glacially transported. Samples taken from outcrop stripped using a 3" pump (see Fig. 4) at showing number 2 did not yield any. The lack of abundant observed zinc mineralization in the marble should not be seen as very discouraging, as the marbles are in areas extensively covered in swamp and overburden. Also, the Cavendish marbles do appear favourable to host a polymetallic Mississippi Valley Type (MVT) deposit



Mineral Record Details

References

MonoMap - Precambrian Geology of Cavendish Township, Central Metasedimentary Belt, Grenville Province

Publication Number: OFR6229 Scale:     Date: 2012

Author: Easton R.M.

Publisher Name: Ontario Geological Survey


Map - Precambrian Geology of Cavendish Township and Environs, Grenville Province

Publication Number: P3605 Scale: 1:20,000    Date: 2010

Author: Easton R.M.

Publisher Name: Ontario Geological Survey


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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office