Mineral Deposit Inventory for Ontario

Ministry of Energy, Northern Development and Mines

Deposit: MDI42E12NW00060

General

Commodities

Primary Commodities: gold

Secondary Commodities: silver

Location

Township or Area: McComber

Latitude: 49° 37' 28.56"    Longitude: -87° 50' 54.53"

UTM Zone: 16    Easting: 438720   Northing: 5497239    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 42E12NW

Point Location Description: Outcrop, trenches, drillholes

Location Method: data compilation

Access Description: The occurrence is located in west-Central McComber Township, 8 km northeast of Beardmore. The property is accessible by way of claim lines or by helicopter.

Exploration and Mining History

1925: Clair Neelin staked the original gold occurrence (claim TB4864). The Neelin-Braggan partnership was formed. 1927: Neelin-Braggan conducted surface work over 12 claims on a mineralized formation thought to be a continuation of the Jarvela Occurrence to the west. 1931: Neelin filed for a Mining Operations Permit. Later that year W. Braggan restaked the claims. TB10307 covered a major portion of the occurrence. 1935-37: Adelaide Gold Mines Ltd. was incorporated and optioned the property, which included 10 claims. Work was recorded (type not known). 1936: L. Keachie acquired the property and a survey was recorded. 1940: Sylvanite Gold Mines assessed several properties in the area, including the Neelin-Braggan Occurrence, and showed claims TB10306, TB10307 and TB10508 as leased. However, the property was shown open for staking in 1944, except for leased claim TB10306. 1944: J.E. Haack staked the property and work was recorded. 1977-81: A. Hopkins staked the property as part of a larger claim block and conducted power stripping, geochemistry and diamond drilling (6 DDH totalling 474.38 m) on the claims. Hanna Mines entered into a deal with Hopkins. 1981: Pancontinental Mining (Canada) Ltd. optioned the property. Geophysics, beneficiation, geology, linecutting and diamond drilling have been recorded. TB506620 is roughly coincidental with claim TB10307. 1986: Norben Gold Resources carried out magnetometer and EM surveys.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Belt: Beardmore-geraldton

Geological Age: Archean   

Geology Comments

03/19/1997 (A Mitchell) - General Geology and Structure: The Neelin-Braggan Occurrence is located in the Southern Metavolcanic Belt (see Ralph Lake Occurrence for geology and structure). The property is underlain by aphanitic mafic flows, tuff, tuff breccia, coarse flows and amygdaloidal metavolcanics. Lenticular metagabbro intrudes the mafic metavolcanics. , Chemical metasediments (iron formation) occur in the metavolcanics. Langford (1928) described the mineralogy: 'The east twelve claims in this group lie east of the Jarvela claims, and the main showing seems to be a continuation of the vein which crosses the Hewitt and Jarvela properties. Considerable work has also been done on bands of iron formation which carry arsenopyrite and and pyrite. The most promising showing is just beside the No. 2 Post of Claim TB4964, where a 10 foot shear zone carrying many 2 inch stringers of quatz has been uncovered. The whole of the 10 foot width is mineralized with pyrrhotite, pyrite and chalcopyrite, and is said to pan gold. This is on the strike of the Jarvela vein: about half a claim to the east there is a 4 foot dike of feldspar porphyry; no dikes as wide as this were seen farther west.' Drill holes compelted by Hopkins on claim TB506620 and TB506623 intersected locally sheared metavolcanics consisting of flows and tuffs. Sphalerite was noted in one hole. A narrow, vitreous, mikly white quartz vein was examined by the author. The vein is <0.3 m wide, strikes 067 degrees and is hosted by a pyritic chlorite schist. Quartz veinlets were noted parallel to the main vein, all concordant with foliation.

Mineral Deposit Lithology

Lithology Comments

03/19/1997 (A Mitchell) - General Geology and Structure: The Neelin-Braggan Occurrence is located in the Southern Metavolcanic Belt (see Ralph Lake Occurrence for geology and structure). The property is underlain by aphanitic mafic flows, tuff, tuff breccia, coarse flows and amygdaloidal metavolcanics. Lenticular metagabbro intrudes the mafic metavolcanics. , Chemical metasediments (iron formation) occur in the metavolcanics. Langford (1928) described the mineralogy: 'The east twelve claims in this group lie east of the Jarvela claims, and the main showing seems to be a continuation of the vein which crosses the Hewitt and Jarvela properties. Considerable work has also been done on bands of iron formation which carry arsenopyrite and and pyrite. The most promising showing is just beside the No. 2 Post of Claim TB4964, where a 10 foot shear zone carrying many 2 inch stringers of quatz has been uncovered. The whole of the 10 foot width is mineralized with pyrrhotite, pyrite and chalcopyrite, and is said to pan gold. This is on the strike of the Jarvela vein: about half a claim to the east there is a 4 foot dike of feldspar porphyry; no dikes as wide as this were seen farther west.' Drill holes compelted by Hopkins on claim TB506620 and TB506623 intersected locally sheared metavolcanics consisting of flows and tuffs. Sphalerite was noted in one hole. A narrow, vitreous, mikly white quartz vein was examined by the author. The vein is <0.3 m wide, strikes 067 degrees and is hosted by a pyritic chlorite schist. Quartz veinlets were noted parallel to the main vein, all concordant with foliation.

Mineralization

Mineralization Comments

03/19/1997 (A Mitchell) - Langford (1928) described the mineralogy: 'The east twelve claims in this group lie east of the Jarvela claims, and the main showing seems to be a continuation of the vein which crosses the Hewitt and Jarvela properties. Considerable work has also been done on bands of iron formation which carry arsenopyrite and and pyrite. The most promising showing is just beside the No. 2 Post of Claim TB4964, where a 10 foot shear zone carrying many 2 inch stringers of quatz has been uncovered. The whole of the 10 foot width is mineralized with pyrrhotite, pyrite and chalcopyrite, and is said to pan gold. This is on the strike of the Jarvela vein: about half a claim to the east there is a 4 foot dike of feldspar porphyry; no dikes as wide as this were seen farther west.' Drill holes compelted by Hopkins on claim TB506620 and TB506623 intersected locally sheared metavolcanics consisting of flows and tuffs. Sphalerite was noted in one hole. A narrow, vitreous, mikly white quartz vein was examined by the author. The vein is <0.3 m wide, strikes 067 degrees and is hosted by a pyritic chlorite schist. Quartz veinlets were noted parallel to the main vein, all concordant with foliation.

10/17/2019 (T Pettigrew) - The North Vein is located approximately 470 m NW of the Neelin-Braggan showing, at Zone 16, 438300 m E, 5497435 m N. No assays were reported. Copper Prince reported that values and widths were low (Assessment report 42E12SW0029).

Mineral Deposit Details

References

Publication - Gold Occurrences, Prospects, and Deposits of the Beardmore-Geraldton Area, p. 428-430

Publication Number: OFR5630    Date: 1986

Author: Mason, J.K. and White, G.D.

Publisher Name: OGS

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Ministry Contact Information

For detailed information regarding this mineral deposit please contact the Thunder Bay North Resident Geologist District Office