Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000002476Deposit Name(s) | Mud Lake No. 4 And 5 Showings - 1930, No. 2 Extension - 1995 |
---|---|
Deposit Status | occurrence |
Date Created | 2020-Dec-18 |
Date Last Modified | 2020-Dec-18 |
Created By | T Pettigrew |
Revised By | T Pettigrew |
Primary Commodities: gold
Township or Area: Elmhirst
Latitude: 49° 46' 15.98" Longitude: -87° 40' 28.68"
UTM Zone: 16 Easting: 451422 Northing: 5513400 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E13SE
Point Location Description: DDH MUD07-16 from Assessment report 20000003447
Location Method: data compilation
Access Description: The property is accessible by travelling north along Highway 801 (Paint Lake Road) from Highway 11 for 13.6 km to the Namewaminikan (Sturgeon) River Bridge, then proceeding east on the Sturgeon River Road for 8.2 km. At this point, a tractor road traverses south for 1 km to the main stripped area comprising the occurrence.
1930s: the area was explored and trenched during the gold rush to the area. 1981: Mattagami Lake drilled 2 DDH totaling 185 m. 1989: Noranda Exploration Company Ltd. conducted prospecting and geological mapping. 1995: Edda Resources carried out stripping and sampling. 1998: F. Houghton, P. Houghton, and L. Clarke carried out prospecting, stripping, trenching, and VLF-EM surveys. 2005: Alto Ventures conducted an IP survey, geological mapping, and sampling. 2007: Alto Ventures carried out prospecting, stripping, sampling, and drilled 5 DDH totaling 416.5 m. 2009: Alto Ventures carried out prospecting and sampling.
Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
---|---|---|
2.38536 | 20000003447 | Open |
10 | 42E13SE0151 | Open |
2.21037 | 42E13SE2015 | Open |
W9540-00143 | 42E13SE0033 | Open |
2.13156 | 42E13SE0110 | Open |
2.47671 | 20000006225 | Open |
Province: Superior
Subprovince: Wabigoon
Belt: Onaman
Intrusion: Coyle Lake Stock
Geological Age: Archean
12/18/2020 (T Pettigrew) - The property is located within the south--central portion of the Onaman--Tashota metavolcanic belt, which is part of the eastern Wabigoon Subprovince. This region of Elmhirst Township is underlain by a thick succession of intermediate to felsic metavolcanic rocks, mainly of pyroclastic origin, which have been intruded by a medium--grained granodiorite to diorite body known as the Coyle Lake stock. The Coyle Lake stock is one of a group of three early-Precambrian intrusive bodies occupying a 20 km area immediately north of the Paint Lake fault. A major structural feature, first identified by Mackasey and Wallace (1972) and here named the Coyle Lake fault traverses the southeast portion of the Coyle Lake stock. The fault mimics the regional northeast structural trend and offsets the contact of the Coyle Lake stock in the Mud Lake area (Mason et al., 1999).
Rock Type | Rank | Composition | Texture | Relationship |
---|---|---|---|---|
intermediate intrusive | 1 | granodiorite | ||
vein | 2 | quartz-carbonate | host |
Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
---|---|---|---|---|---|---|---|
1 | pyrite | economic | ore | ||||
2 | chalcopyrite | economic | ore |
12/18/2020 (T Pettigrew) - DDH MUD07-16 returned 5.77 g/t Au over 0.5 m from a massive quartz vein at 21.1 m. DDH MUD07-17 returned 2.33 g/t Au over 1.6 m from quartz-carbonate veins that are brecciated and carry minor amounts of fine disseminated pyrite. DDH MUD07-19 returned 1.446 g/t au over 1 m (Assessment report 20000003447). Sampling done in 1999 returned up to 2.54 g/t Au from an altered quartz diorite vein with 5% pyrite, 10.53 g/t Au from a quartz-carbonate vein in a sericite schist with 5% pyrite, 11.04 g/t Au from an altered quartz diorite vein with up to 5% coarse pyrite, and 24.64 g/t Au over 70 cm from a silicified and altered vein of quartz porphyry and quartz diorite with 10% pyrite (Assessment report 42E13SE2015).
Publication - Thunder Bay North (Beardmore-Geraldton) District – 1998; In: Report of Activities, 1998, Resident Geologist Program, Thunder Bay North Regional Resident Geologist Report, p. 14-16
Publication Number: OFR5988 Date: 1999
Author: Mason, J.K., White, G.D., O’Brien, M.S., Walden, A., Komar, C.
Publisher Name: OGS
We are continuously updating the Mineral Deposit Inventory. If you notice errors in the data please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral deposit please contact the Thunder Bay North Resident Geologist District Office