Mineral Deposit Inventory for Ontario

Ministry of Energy, Northern Development and Mines

Permanent Link to this Record: MDI31D16NW00204

Deposit: MDI31D16NW00204

General

Mineral Deposit Identification
Deposit Name(s) Canadian All Metals Explorations Limited - 1982, Track Showing - 1955
Related Deposit Type None
Deposit Status prospect
Abandoned Mine Inventory Reference 07048
Date Created 1982-Aug-24
Date Last Modified 2017-Feb-10
Created By Q Unknown
Revised By A Wilson

Commodities

Primary Commodities: uranium

Secondary Commodities: rare earth elements

Location

Township or Area: Monmouth, Monmouth, Monmouth, Monmouth

Latitude: 44° 56' 54.08"    Longitude: 78° 19' 14.32"

UTM Zone: 17    Easting: 711364   Northing: 4980706    UTM Datum: NAD83

Resident Geologist District: Southeastern Ontario

NTS Grid: 31D16NW

Point Location Description: Precise

Location Method: data compilation

Source Map: M2174

Sources Map Scale: 1:31 680

Access Description: The adit portal is 3.2 km by road from the Tory Hill-Gooderham road in lot 6, concession 9.

Exploration and Mining History

Pre -1955: bulldozed stripping and trenching, 8000 feet of DD, 1200 feet of lateral work from an adit. 1955: Canadian All Metals Explorations Limited; performed stripping, trenching, DD-38-5040 ft., DD- 4 -531 ft.; underground drill holes 4-531 ft; adit in N½ Lot 6 Con underground drill holes for 531 feet, an adit in the north half of lot 6, conc. 9, with 642 feet of cross-cutting and 490 feet of drifting. 1977: Imperial Oil Limited - DD-10-197 ft. 2005-2006: El Nino ventures - prospecting, stripping, sampling and a radiometric survey on the property; a grid was established, sampling and performing an Alphameter and scintillometer survey on the property.

Assessment Work on File

Assessment Work on File
Office File Number   Online Assessment File Identifier   Online Assessment File Directory  
Tweed file Monmouth #162 /El Nino Ventures 2.31943     20000001270     Open
Monmouth Tp. No.164 /El Nino Ventures/2.36890     20000002622     Open
10     31D16NW0035     Open

Geology

Province: Grenville

Terrane: Bancroft Terrane

Mineral Deposit Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
marble 1 contains
quartzite 2 contains
paragneiss 3 contains
felsic intrusive 4 gneissic contains

Lithology Comments

01/09/2017 (A Wilson) - The metasediments strike N50ºE and dip 30º SE. Uraninite and pyrochlore are erratically disseminated in discontinuous lenses within zones of silicate marble containing tremolite, pyroxene, mica serpentine and calcite. The main showing, which is undercut by the adit workings, is in a bulldozed area about 40 by 120 feet. A 20-foot long trench in this exposes a 4-foot band of silicated marble, overlain by quartzite and underlain by a lime-silicate rock with mica gneiss interbeds. These rocks strike N. 45ºE. and dip 40º S.E. The silicated marble contains pyroxene, mica, salmon-pink calcite, and rarely, grains or cubes of uraninite. Geiger readings were 25x-50x, the higher readings being on mica-rich sections. The footwall of the marble band is a rusty mica gneiss, 1-3 inches wide and dipping 30º S.E. In the bulldozed area outside the trench geiger readings were 4x-12x on marble. Towards the southwest end of this area a single round grain, ¼ inch across, of pyrochlore has been found. The adit crosscut intersects interbedded marble, diopside rock, well-banded diopside-trenolite rock, quartzite, and bands of salmon-pink calcite. A pink leucogranite sill intrudes one of the quartzite bands. The metasediments strike northeast and dip 30 º -75 ºS.E., but in places, are flat-lying. The marble ranges from a coarsely crystalline white rock, to pale green, to a banded rock with silicate minerals such as serpentine, diopside, phlogopite, and talc (?). The diopside rocks contain numerous gash veins or stringers of calcite-hornblende, and accessory pyrite, pyrrhotite, and molybdenite. The radioactive zones are discontinuous lenses that consist of coarsely crystalline salmon-pink calcite with accessory diopside, tremolite, phlogopite, pyrite, and pyrrhotite. The strike, dip, and thickness of the zones intersected by the crosscut are very variable. It parallels the strike and dip of the enclosing metasediments. The dip is 25 º -65 º S.E. and may average 45 º S.E.

Mineralization

Deposit Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Habit Description
1 uraninite economic ore
2 pyrochlore economic ore
3 diopside economic ore
4 datolite economic ore
5 graphite economic ore
6 magnetite economic ore
7 molybdenite economic ore
9 tourmaline economic ore
10 thorianite economic ore
12 zircon economic ore

Mineralization Comments

01/09/2017 (A Wilson) - North Showing-- The North showing has been explored by 13 bulldozed strippings and some trenching over a length of 1,300 feet in a direction N. 40 E. These workings expose silicated marble with erratically distributed lenses and stringers of salmon-pink calcite and lesser amounts of quartzite and paragneiss. Accessory minerals in the marble include pyroxene, phlogopite, uraninite, and pyrochlore. Geiger readings were 5x-12x, with erratic spot-highs of 17x-55x usually either on lenses of salmon-pink calcite or on mica-rich bands in the marble. Uraninite and pyrochlore were noted at some of these spot-high locations. Apatite was noted in coarsely crystalline white calcite near the north end of these workings. Geiger readings were 5x-12x, with erratic spot-highs of 17x-55x usually either on lenses of salmon-pink calcite or on mica-rich bands in the marble. Uraninite and pyrochlore were noted at some of these spot-high locations. Apatite was noted in coarsely crystalline white calcite near the north end of these workings. The uranium minerals are pyrochlore in brownish grains 1/16-1/4 inch across, sometimes showing hexagonal outlines in cross-section and, more rarely, grains of uraninite. The uranium minerals are disseminated sparsely or in bands l inch or less in thickness parallel to the dip of the zone and country rock. Track Showing - The Track showing is in the S of lot 6, concession IX, just north of the Canadian National railway right-of way. In 1955 this showing was explored by three pits, bulldozed strippings, and diamond drilling. One pit, 130 feet north of the railway track, exposed a micaceous serpentine marble with occasional stringers of salmon-pink calcite and rare accessory uraninite in cubes 1/16-1/4 inch across. The serpentine contains relict forsterite. Geiger readings were 5x-100x and averaged 25x across 12 feet north-and-south. A second pit, 100 feet north of the railway track, exposed marble containing pale-green pyroxene, phlogopite, streaks or patches of pink calcite, and accessory uraninite as grains, and cubes or interpenetration twins of from 1/16 to a maximum of 1/2 inch across. The bedding strikes N. 65 E. and dips 45 S.E. Geiger readings averaged l0x with spot-highs of 30x. A small stripping and test hold, 40 feet east of the last, exposed silicated marble.

09/27/2002 (D Laidlaw) - Drill hole samples average 0.184% U3O8 (chemical) over 49 inches.

References

Book - Radioactive Mineral Occurrences in the Bancroft Area, p. 83-85

Publication Number: ARV65-6     Date: 1956

Author: J. Satterly

Publisher Name: ODM

Reference Location: Southeastern Ontario


Book - Uranium and Thorium Deposits of Southern Ontario p. 26

Publication Number: MDC004     Date: 1967

Author: D. F. Hewitt

Publisher Name: ODM

Reference Location: Southeastern Ontario


Map - Monmouth

Publication Number: M2174     Scale: 1:31 680    Date: 1970

Publisher Name: ODM

Reference Location: Southern Ontario


Book - Geology of Glamorgan and Monmouth townships, Haliburton County, p.145-150

Publication Number: OFR5021    Date: 1968

Author: H.S. Armstrong, J. Gittins

Publisher Name: ODM

Reference Location: Southeastern Ontario


Book - Uranium and Thorium Deposits of Southern Ontario, p. 134

Publication Number: OFR5311    Date: 1981

Author: J.B. Gordon, U.C. Rybak and J. A. Robertson

Publisher Name: OGS

Reference Location: Southeastern Ontario


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