Ontario Geological Survey
Permanent Link to this Record:
MDI42E11NW00002
| Record Name(s) | March Minerals Occurrence - 1960, Kinghorne - 1956 |
|---|---|
| Related Record Type | Simple |
| Record Status | Discretionary Occurrence |
| Date Created | 1991-Jan-12 |
| Date Last Modified | 2021-Dec-14 |
| Created By | Q Unknown |
| Revised By | B Nelson |
Primary Commodities: Gold
Township or Area: Colter
Latitude: 49° 44' 43.48" Longitude: -87° 18' 58.84"
UTM Zone: 16 Easting: 477209 Northing: 5510373 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E11NW
Point Location Description: Diamond drill holes
Location Method: Data Compilation
Access Description: The property is located in northwestern Colter Township. Travel west from Jellicoe on Trans Canada Highway 11 for 17 km, north and east on secondary roads for 12.5 km, and then southeast to Partridge Lake (approximately 3.5 km). The occurrence is located 2.5 km east of the road. The CNR main line also runs 2 km south of the occurrence.
1956: The properties were staked by L. Jefferson and Romeo St. Germaine. 1958: Claims were cancelled and restaked by Romeo St. Germaine. 1959: The claims were transferred to Sam Taylor, who completed two diamond-drill holes totalling 23.8 m. 1960: Sam Taylor drilled 8 holes totalling 177.4 m. The claims were optioned to March Minerals Limited, which completed a three hole diamond drill program totalling 396.2 m. 1962: The claims were cancelled. 1986: Midnorth Engineering conducted airborne VLF-EM and magnetic surveys. 1987: Midnorth carried out geological mapping and sampling. 1988-89: Mingold Resources Inc. carried out line cutting, VLF-EM, Horizontal Loop EM, and magnetic surveys, soil and rock sampling, geological mapping, and stripping.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 11 | 42E11NW0026 | 42E11NW0026 |
| 2.11043 | 42E11NW0009 | 42E11NW0009 |
| 2.12383 | 42E11NW0003 | 42E11NW0003 |
| 10 | 42E11NW0027 | 42E11NW0027 |
Province: Superior
Subprovince: Wabigoon
Terrane: Eastern Wabigoon
Belt: Beardmore-Geraldton
Geological Age: Archean
Dec 07, 2005 (B Nelson) - Legault Township is underlain dominantly by Early Precambrian (Archean) metasediments and metavolcanics that form part of the Beardmore-Geraldton belt. The metavolcanics are predominantly of mafic composition and include pillowed and amygdaloidal flows. Iron formation composed of magnetite, hematite, chert and jasper is associated with thin-bedded greywacke sandstone, siltstone, and argyllite at the greywacke-mafic flow contact trending east-west across the central part of the map area. A 450 m long elliptical-shaped granitic body of trondhjemite composition intrudes mafic flows on the southern boundary of Legault Township, 2.4 km west of Colter Township. Other felsic to mafic intrusions and dykes occur throughout the map area. Major stratigraphy units are steeply dipping and have an easterly strike. A moderate to well developed east-striking schistosity is present in all the Early Precambrian (Archean) strata. Drilling performed by Sam Taylor intersected predominantly highly altered, schistose and sheared metavolcanic rocks of andesitic or more felsic compositions. Mineralized quartz feldspar porphyry was noted. The three holes drilled by March Minerals Limited intersected andesitic metavolcanics and pyroclastics, ending in a conglomerate (agglomeratic) unit. Mineralization consists of massive to disseminated pyrite with traces of chalcopyrite.
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate lava flow-unsubdivided | 1 | Andesite | Sheared | Near |
|---|---|---|---|---|
| Quartz-Feldspar Porphyry | 2 | Quartz Feldspar | Host | |
| Conglomerate | 3 | Near | ||
| Quartz Diorite | 4 | Quartz Diorite | Near |
Nov 26, 2021 (Therese Pettigrew) - Trenching carried out in 1989 revealed a sequence of alternating intermediate to felsic agglomerate beds and intermediate (andesitic) flows with minor feldspar porphyritic tuff (Assessment report 42E11NW0003).
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore |
Dec 07, 2005 (B Nelson) - Mineralization consists of massive to disseminated pyrite with traces of chalcopyrite. Sam Taylor intersected only trace gold values in his two holes. March Minerals obtained a high of 0.01 oz/ton Au.
Nov 26, 2021 (Therese Pettigrew) - Pyritization is confined to narrow sub-zones within sears in the agglomerate beds. Pyrite mineralization occurs as fine- to medium-grained disseminations, local sub-concordant stringers and nodules up to 2 cm in diameter. The pyroclastic beds contain very minor quartz veining. Massive fine-grained andesitic flow rocks are cut by blotchy discontinuous quartz-carbonate veining lacking sulphide mineralization. The highest assay returned from the 1989 program was 16 ppb Au (Assessment report 42E11NW0003). Sampling done on the showing in 1987 returned a maximum assay value of 21 ppb Au.
Map - Geological series, Colter Township area, District of Thunder Bay
Publication Number: P1192 Scale: 1:15,840 Date: 1976
Author: Mackasey W.O., Edwards G.R., Cape D.F.
Publisher Name: Ontario Division of Mines
Map - Tashota-Geraldton sheet, geological compilation series, Thunder Bay and Cochrane districts
Publication Number: M2102 Scale: Date: 1997
Author: Pye E.G., Harris F.R., Fenwick K.G., Baillie J.
Publisher Name: Ontario Dept. of Mines
Map - Thunder Bay data series, Partridge Lake area, Thunder Bay District
Publication Number: P2518 Scale: 1:15,840 Date: 1982
Author: Love W.D.
Publisher Name: Ontario Geological Survey
Mono - Gold occurrences, prospects, and deposits of the Beardmore-Geraldton area, districts of Thunder Bay and Cochrane
Publication Number: OFR5630 Scale: Date: 1986
Author: Mason J.K., White G.D.
Publisher Name: Ontario Geological Survey
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