Ontario Geological Survey
Permanent Link to this Record:
MDI41N15NE00098
| Record Name(s) | Reed Lake West Grid - 1992, Ss-925-14 - 1992 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2001-Apr-23 |
| Date Last Modified | 2023-Mar-29 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Naveau
Latitude: 47° 54' 7.52" Longitude: -84° 43' 45.47"
UTM Zone: 16 Easting: 669700.11 Northing: 5307913.63 UTM Datum: NAD83
Resident Geologist District: Sault Ste. Marie
NTS Grid: 41N15NE
Point Location Description: Trenched outcrop
Location Method: Based on Assessment
Access Description: The site is accessible by driving east from Highway 17 along the Scott Falls access road. Cross the power dam and follow a sequence of disused bush roads south of the power line on the south side of the Michpicoten River. Access to the site is by a series of overgrown logging roads around the south end of Mishewawa Lake and from the south side of High Falls dam.
Pre 1940 - trenching. 1992-93: Reed Lake Exploration Ltd. - prospecting, ground geophysical survey, soil survey, mapping, trenching.
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Michipicoten
Geological Age: Neoarchean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate Tuff | 1 | Schistose Tuffs | Host |
|---|---|---|---|---|
| Mafic lava flow-unsubdivided | 2 | Sheared | Near | |
| Vein | 3 | Quartz | Host |
Dec 07, 2005 (A Wilson) - Elevated gold values were obtained from a sequence of felsic to intermediate metavolcanic rocks, flanked on both sides by mafic metavolcanic rocks. Sills of gabbro-diorite are prevalent to the south. These rocks exhibit pyrite, sericite, crbonate and chlorite alteration. Narrow quartz stringers and veinlets returned elevated gold values. In the vicinity of the showing, the quartz veins are folded into lenses.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Tourmaline | Economic | Gangue | ||||
| 3 | Chalcopyrite | Economic | Gangue | ||||
| Sericite | Alteration | Sericitization | 1 | Medium | Replacement | ||
| Carbonate | Alteration | Carbonatization | 2 | Medium | Replacement |
Dec 07, 2005 (A Wilson) - Four grab samples along strike returned gold values ranging from 417 ppb to 2036 ppb Au (0.056 oz/t Au). Elevated gold values were also obtained approximately 150m along strike from the first samples. The best channel sample collected in 1993 returned values of 0.37 oz/t Au over 0.5 m.
| Rank | Classification |
|---|---|
| 1 | Unknown |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 25 | 25 |
File - Resident Geologist files WP Naveau.13, WP Naveau.14
Publication Number: Date:
Author:
Publisher Name:
Location: SSM RGP office
Map - Geological series, Precambrian geology, Naveau Township, Algoma District
Publication Number: P2683 Scale: 1:15,840 Date: 1983
Author: Massey N.W.D., Navratil S., Jennings E.A.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Sault Ste. Marie Resident Geologist District Office