Ontario Geological Survey
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MDI31E01SE00328
| Record Name(s) | P.J. Dwyer Occurrence - 1921 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Mar-25 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Molybdenum
Township or Area: Monmouth
Latitude: 45° 2' 50.54" Longitude: -78° 13' 59.23"
UTM Zone: 17 Easting: 717892.76 Northing: 4991937.53 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31E01SE
Point Location Description: Precise
Location Method: Data Compilation
Access Description: 0.5 km south of Clement Lake.
1921: P.J. Dwyer did considerable surface work. The work done consisted of an open-cut, 25 feet deep, on the hillside, and a few pits on surface outcrops. 1925-42:This property was under option to the Molybdenum Products, Ltd.; trenching, shallow DDHs. 1965: New Far North Exploration Ltd. acquired the property as part of a 26 contiguous claim package. They completed a geochemical survey of the area; DD-13-2716.2 ft..
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 18 | 31E01SE0162 | 31E01SE0162 |
Province: Grenville
Subprovince: Central Metasedimentary Belt
Terrane: Bancroft
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Pyroxenite | 1 | Pyroxenite | Host |
|---|---|---|---|---|
| Limestone | 2 | Near | ||
| Pegmatite | 3 | Intrudes | ||
| Paragneiss | 4 | Biotite | Adjacent |
Feb 01, 2017 (A Wilson) - The open cut to the south shows rusty paragneiss underlain by pyroxenite with an exposed thickness of 4 feet. Scattered molybdenite flakes were found. The grade is extremely low and it was doubtful if hand-cobbing would allow the production of sufficient tonnage of marketable ore. The north opening, near the north end of the ridge, consists of a pit 7 feet wide, 8 feet long, and from 5 to 8 feet deep at the base of a cliff face. From the top of the cliff to the bottom on the pit is about 25 feet. A drift 6 feet wide and 7 feet high has been driven 10 feet into the base of the cliff from the bottom of the pit. A few chains south there is a shallow open cut on the same cliff. The pit and drift at the north end of the ridge expose a medium- to coarse-grained, light-green pyroxenite very sparsely mineralized with large flakes of molybdenite, pyrite, and pyrrhotite. In the pit crumbly crystalline limestone and pegmatite occur. These rocks may be the footwall of the pyroxenite band. Overlying the pyroxenite band and exposed in the cliff face are interbedded rusty pyroxene and biotite paragneiss trending N. 25ºW. and dipping 45ºE.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Molybdenite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore |
Feb 01, 2017 (A Wilson) - The pit and drift at the north end of the ridge expose a medium- to coarse-grained, light-green pyroxenite, very sparsely mineralized with large flakes of molybdenum, pyrite and pyrrhotite. DDH Z-2-2-A returned the highest assays of 0.225% Mo over4.5 ft. and 0.35% Mo over 4.8 ft.
Publication - Molybdenum metallurgy and uses and the occurrence, mining and concentration of its ores; Canada Mines Branch, Publication 592
Publication Number: CMB Pub 592 Page: 75-76 Date: 1925
Author: Eardley-Wilmot, V L
Publisher Name: Canada Mines Branch
Location: https://doi.org/10.4095/307785
Part - Mineral occurrences in the Haliburton area
Publication Number: ARV52-02 Page: 69-70 Date: 1998
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Molybdenum deposits of Ontario
Publication Number: MDC007 Page: 33 Date: 1968
Author: Johnston F.J.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of Glamorgan and Monmouth townships, Haliburton County
Publication Number: OFR5021 Page: 130-131 Date: 1997
Author: Armstrong H.S., Gittins J.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Metallogeny of the Grenville Province, southeastern Ontario
Publication Number: OFR5515 Page: 136 Date: 1984
Author: Carter T.R.
Publisher Name: Ontario Geological Survey
Location:
Map - Monmouth Township, Haliburton County
Publication Number: M2174 Scale: 1:31,680 Date: 1970
Author: Armstrong H.S., Gittins J.
Publisher Name: Ontario Dept. of Mines
Location:
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