Ontario Geological Survey
Permanent Link to this Record:
MDI31D16SW00120
| Record Name(s) | Salerno Lake - 1979, St Joseph Explorations - 1979, Canadian Smelting & Refining - 1980 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1991-Jan-10 |
| Date Last Modified | 2022-Dec-12 |
| Created By | |
| Revised By |
Primary Commodities: Lead, Zinc
Township or Area: Snowdon
Latitude: 44° 51' 39.96" Longitude: -78° 29' 52.81"
UTM Zone: 17 Easting: 697672 Northing: 4970566 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31D16SW
Point Location Description: Site of S-12 drill pad
Location Method: Field Visit with GPS
Access Description: The property is accessed from the north from Hwy 503. Turn south on Irondale Road and drive apx 600m. Turn right (west) on Salerno Lake Road and drive to Twist Lane (approximately 3.8 km. The Salerno deposit projects to surface along Salerno Lake Road, approximately 400m north from Twist Lane and 600m south from Twist Lane.
1974-80: Canadian Smelting and Refining Ltd and St. Joseph Explorations Ltd. carried out geological mapping, geochemistry, geophysics, and 85 diamond drill holes totaling 15,805m. 2013: Skead Holdings Ltd. carried out VLF-Mag geophysical survey, soil sampling, and litho-geochemical sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 19 | 31D16SW0007 | 31D16SW0007 |
| 18 | 31D16SW0006 | 31D16SW0006 |
| 16 | 31D16SW0020 | 31D16SW0020 |
| 13 | 31D15SW0006 | 31D15SW0006 |
| 14 | 31D16SW0022 | 31D16SW0022 |
| 2.56835 | 20000014508 | 20000014508 |
| Snowdon #28 / 2.58451 | 20000015356 | 20000015356 |
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Bancroft
Geological Age: Mesoproterozoic
Sep 24, 2019 (Sheree Hinz) - The regional trend of the rock units is generally to the NE (035 degrees to 060 degrees azimuth), dipping to the SE at 20 degrees to 60 degrees. As can be interpreted from Map 1957b, the metasedimentary rocks have undergone at least 2 phases of folding with an early phase of fold that are generally open with fold axial planes at 110 degrees to 120 degrees azimuth and fold axes plunging 20 degrees to 35 degrees towards the east. The later phase of folding consists of generally open folds with axial traces generally trending NS (170 degrees to 180 degrees azimuth) and fold axes plunging moderately to the south. The Salerno Lake deposit is located on the eastern flank of a later fold near its fold axial trace.
| Rock Type | Rank | Composition | Texture | Relationship | Marble | 1 | Host |
|---|
Sep 24, 2019 (Sheree Hinz) - The Salerno Lake deposit is hosted dominantly by dolomitic marbles with lesser calcitic marbles. The marbles are white to pale grey, medium to coarse grained (recrystallized) massive and locally well banded. Zinc mineralization appears to be dominantly coinciding with the Banded Grey Dolomitic marble units. It is believed that the banding reflects primary textures of the protolith. Gypsum and anhydrite have been postulated locally within the mineralized horizons. The marbles are variably altered (locally intensely) with calc-silicate minerals such as white diopside, tremolite, serpentine, phlogopite and quartz. St-Joseph geologists referred to the rocks as “silicated”. In drill core, some units are completely replaced by calc-silicate minerals for thicknesses of up to 50m. Those units are typically described as Diopside-Quartz rock or Banded Diopside-Quartz calc-silicate Rock.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Sphalerite | Economic | Ore | ||||
| 3 | Tremolite | Economic | Ore | ||||
| 4 | Graphite | Economic | Ore |
Sep 24, 2019 (A Wilson) - The zinc mineralization consists of concordant horizons of disseminated, semi-massive and rarely massive sulphides containing variable amounts of sphalerite, pyrite and pyrrhotite. The mineralized horizons vary from thicknesses of less than 1m up to 7.5 m. A minimum of 3 mineralized horizons have been interpreted occurring typically in what geologists describe as a Grey Banded Dolomitic Marble. The mineralization is followed over a strike length of 1.1 km and to a maximum vertical depth to date of 350m. The mineralized zones appear to be open down dip. Indicated ore reserves total 797,500 metric tonnes at 6.3 % Zn (4% cut-off grade). 3 other dolomitic units host minor Zn mineralization. In all, 1.1 million metric tonnes grading 5.8 % Zn, has been delineated. Tremolite from about lot 5, con 1 is in the ROM. Some notable intersections from St. Joseph Explorations Ltd. drill program include: DDH S-14 6.85% Zn over 2.8 m, and DDH S-56: 12.7% Zn over 2.5 m.
| Rank | Classification |
|---|---|
| 1 | Industrial |
| Rank | Characteristic |
|---|---|
| 1 | Stratabound |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Salerno Lake | 1979 | Unclassified | 797500 | 6.3 % Zn (4 % cut-off grade). | Zinc 6.3 % | |
| Salerno Lake | 1979 | Unclassified | 1100000 | Soever, 1979 (paper files in Tweed RGP Office) | 5.8% Zn | Zinc 5.8 % |
MonoMap - Industrial minerals of the Algonquin region
Publication Number: OFR5425 Page: 140 Date: 1983
Author: Martin W.
Publisher Name: Ontario Geological Survey
Location:
Map - Glamorgan Township, Haliburton County
Publication Number: M2173 Scale: 1:31,680 Date: 1970
Author: Armstrong H.S., Gittins J.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Haliburton-Bancroft area, Province of Ontario
Publication Number: M1957B Scale: 1:126,720 Date: 1997
Author: Satterly J., Hewitt D.F.
Publisher Name: Ontario Dept. of Mines
Location:
Folio - Glamorgan Township, Haliburton County
Publication Number: GDIF057 Date: 1997
Author: Bancroft RMSO
Publisher Name: Ontario Geological Survey
Location:
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