Ontario Geological Survey
Permanent Link to this Record:
MDI52F09SW00043
| Record Name(s) | Mastodon - 1960, E. 163 - 1960 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1991-Jan-22 |
| Date Last Modified | 2022-Jun-10 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Copper, Silver
Township or Area: Melgund
Latitude: 49° 35' 9.08" Longitude: -92° 17' 59.18"
UTM Zone: 15 Easting: 550612.921 Northing: 5492821.371 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F09SW
Point Location Description: Precise
Location Method: Field Visit with GPS
Access Description: The Mastodon (E.163) Occurrence is located in Concession IV, lot 2, Melgund Township on mining location E.163. The property is accessible from the Trans Canada Highway and is 1.7 kilometre east of the Sandy Point Road at Borups Corners and approximately 100 metres north of the Trans Canada Highway. (OFR 5723, p.187)
Province: Superior
Subprovince: Wabigoon
Terrane: Western Wabigoon
Belt: Eagle-Wabigoon-Manitou
Geological Age: Precambrian
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | vesicular |
|---|---|---|---|---|
| Vein | 2 | quartz stringers | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 5 | Chalcopyrite | Economic | Ore | ||||
| 10 | Pyrite | Economic | Ore |
Mar 17, 2022 (Q Unknown) - BEST ASSAY: 5.1 OPT AU. The occurrence is situated within greenschist grade mafic, metavolcanic flows and occurs within a strong northeast-trending shear zone. The occurrence is 2 kilometres northwest of the contact between dioritic rocks of the Revell Batholith and mafic metavolcanics. The surrounding geology at the occurrence consists of mafic, vesicular, metavolcanic flows, which are fine-grained, chloritic, moderately iron carbonatized and consistently sheared 067° to 069°. The metavolcanics are intruded by a wide, fine-grained, sheared felsic dike striking 068°. The dike is slightly pyritic, gossan-stained, and hosts discontinuous quartz stringers. A 1.5mx1.8mx6m deep timbered shaft has been sunk on a stockwork of quartz stringers and veins which is 1.2 m to 1.5 m wide and strikes 067°/97°. The metavolcanic wall rocks are intensely sheared, chloritic, sericitized, and moderately iron carbonatized. Quartz veins are milk white containing orange iron carbonate and dark green stringers of chlorite. No sulphides were observed in the wall rocks or quartz veins. A grab sample of the quartz vein material, taken by the author at the edge of the shaft, assayed 16 ppb gold. (OFR 5723, p.187)
Date: Aug 31, 1990
Geologist: C Blackburn
Notes: This old mining location was briefly visited in company of Alex Glatz. An old shaft is located close to and on the north side of Highway 17, in the southwest corner of Lot 2, Concession 4, Melgund Township. The point is 1. 7 km east of the Sandy Point Road turn-off, Borups Corners . Satterly, in Geology of Dyment Area, 1960, p. 26 reports shaft to be 20 feet deep. A sample of quartz vein material with brown-weathered carbonate and schistose wall rock (K-90-017) analyzed 720 ppb gold (or 0.022 ounce gold per ton) . (Dick Beard got a trace assay in 1976). (C.E. Blackburn, unpublished property visit)
Journal - Daily Journal 1896-10-31
Publication Number: Date: 1896
Author:
Publisher Name:
Location: Kenora Resident Geologist Office
File - Kenora Mineral Deposit files 52F09SW Mastodon
Publication Number: MDF Date: 1996
Author:
Publisher Name:
Location: Kenora Resident Geologist Office
Part - Geology of the Dyment area
Publication Number: ARV69-06 Page: 26 Date: 1997
Author: Satterly J.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Geology, gold mineralization and property visits in the area investigated by the Dryden-Ignace economic geologist, 1984-1987
Publication Number: OFR5723 Page: 187 Date: 1989
Author: Parker J.R.
Publisher Name: Ontario Geological Survey
Location:
File - E163 (or Mastodon) Occurrence - Unpublished Property Visit, 31 August, 1990
Publication Number: Date:
Author: C.E. Blackburn
Publisher Name:
Location: Kenora Resident Geologist Office
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