Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI52N07SW00027| Deposit Name(s) | Sheehan Lake North Shear - 1987 |
|---|---|
| Related Deposit Type | None |
| Deposit Status | occurrence |
| Date Created | 1991-Mar-20 |
| Date Last Modified | 2020-Aug-13 |
| Created By | Q Unknown |
| Revised By | T Pettigrew |
Primary Commodities: silver
Secondary Commodities: gold
Township or Area: Shabu Lake Area
Latitude: 51° 17' 55.87" Longitude: -92° 46' 37.93"
UTM Zone: 15 Easting: 515533 Northing: 5683083 UTM Datum: NAD83
Resident Geologist District: Red Lake
NTS Grid: 52N07SW
Point Location Description: DDH S87-04 from Assessment report 52N07SW0004
Location Method: conversion from mdi
Source Map: OGS 1973 P.901 SHABUMENI R.-NARROW L. AREA (NE)
Sources Map Scale: 1:12 000
Access Description: Located 80 km NE of Red Lake, on the south shore of Sheehan Lake and accessible by float equipped aircraft. Possibly accessible by small boat eastward on a creek approx. 5 km past Leonard Lake on the Joyce River Rd.
1969: Noranda Exploration conducted a ground EM and magnetometer survey, the western boundary of which is immediately east of this location. 1982: Dome Exploration examined the property but no assessment was filed. 1984: Summit Red Lake Gold Mines conducted ground VLF-EM and magnetometer surveys with 814 soil (humus) samples and 55 lithogeochemical samples. 1987: Shabu Gold Mines drilled 21 diamond drill holes (8375 ft), including 3 totalling 432.1 m in the area of the occurrence (S87-04, -11, and -13).
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 63.2691 | 52N07SE0057 | Open |
| 2.7641 | 52N07SW0003 | Open |
| 14 | 52N07SW0004 | Open |
Province: Superior
Subprovince: Uchi
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| intermediate intrusive | 1 | biotite-hornblende granodiorite | host |
08/13/2020 (B Paterson) - The Sheehan Lake occurrence lies in a biotite-hornblende granodiorite batholith immediately north of the contact with a metavolcanic-metasedimentary assemblage.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | pyrite | economic | ore |
08/13/2020 (B Paterson) - Comments from Dome Exploration (1982) in assessment report 52N07SW0003 indicate the low-grade Au values appear to be associated with intense zones of pyrite and silicification within a pyritic carbonated zone in a hornblende granodiorite. DDH S87-04 returned 1.77 opt Ag over 17.5 ft (Assessment report 52N07SW0004).
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