Ontario Geological Survey
Permanent Link to this Record:
MDI52B10SW00004
| Record Name(s) | Echo Ridge Property - 2021, Obadinaw - 1966, Minoletti - 1968 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1979-Jul-03 |
| Date Last Modified | 2023-Jun-28 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Copper, Silver
Township or Area: Tilly Lake Area
Latitude: 48° 31' 18.08" Longitude: -90° 54' 44.29"
UTM Zone: 15 Easting: 654152 Northing: 5376391 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52B10SW
Point Location Description: DDH ER21-09 from Assessment report 20000020611
Location Method: Data Compilation
Access Description: Access is via winter road using 4-whel drive vehicle on the Moss Mine Road, or by float plane into Moss Lake.
1966: F.R. Harris of the OGS found the showing. Prior to 1968: 8 trenches from 20 feet to 60 feet were constructed by Minoletti. 1990: Noranda Exploration Company Ltd. carried out an IP survey, geological mapping, trenching, and drilled 4 DDH totalling 449 m. 2016: Tashota Resources Inc. flew airborne EM, mag, and radiometric surveys. 2017: Tashota Resources Inc. and Echo Ridge Resources Inc. carried out prospecting and sampling. 2020-21: Tashota and Echo Ridge carried out prospecting, sampling, trenching, and drilled 8 DDH totalling 1635 m.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.13576 | 52B10SW0005 | 52B10SW0005 |
| 52B10SW8116 | 20000005150 | 20000005150 |
| 2.13407 | 52B10SW0003 | 52B10SW0003 |
| 2.14517 | 52B10SW0890 | 52B10SW0890 |
| 5061 | 20000020611 | 20000020611 |
| 5230 | 20000021011 | 20000021011 |
| 4744 | 20000020427 | 20000020427 |
| 578 | 20000017137 | 20000017137 |
| 2.57089 | 20000014552 | 20000014552 |
Province: Superior
Subprovince: Wawa
Terrane: Wawa-Abitibi
Belt: Shebandowan
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Quartz Diorite | 1 | Quartz Diorite | Host |
|---|---|---|---|---|
| Terrigenous-Clastic-Unsubdivided | 2 | Near |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Chalcopyrite | Economic | Ore | ||||
| 3 | Pyrrhotite | Economic | Ore | ||||
| 4 | Malachite | Economic | Ore | ||||
| 5 | Bornite | Economic | Ore |
Sep 25, 2018 (Therese Pettigrew) - A small amount of chalcopyrite was found by F.R. Harris 3353 m (11,000 ft) WNW of the junction of Tilly Creek and the Obadinaw River. Chalcopyrite, pyrite, and malachite are in a sheared, medium-grained quartz diorite, 61 m north of the contact between the metasediments and diorite. The sheared mineralized zone trends N50E is 15.25 m wide and was traced for 45.7 m along strike. The most highly mineralized part contains an estimated 3% pyrite and 1% chalcopyrite, which are disseminated through the rock. The copper content was estimated to be less than 0.2% in most of the zone (Harris, 1970). DDH NT90-01 assayed 0.2% Cu over 9 m. DDH NT90-02 assayed up to 0.5 gpt Au, and 1.75% Cu over 1 m. DDH NT90-03 assayed 0.22% Cu over 33 m including 0.35% Cu over 18 m. DDH NT90-04 assayed up to 0.37 gpt Au (AFRI 52B10SW0005). Grab samples assayed up to 13.3 gpt Au and 4.2% Cu (AFRI 52B10SW0003). DDH ER21-09 intersected coarse-grained diorite at the start of the hole. This unit is visibly mineralized with pyrite, chalcopyrite and pyrrhotite. Minor carbonate veinlets and hematite alteration are present. Quartz veins with chlorite, pyr and magnetite are hosted in this unit. The best Cu intercept was 2.08% Cu over 1.85 m core length. Other intervals are 0.95% Cu over 0.7 m core length and 0.46% Cu over 4.79 m. DDH ER21-10 returned 1.99% Cu and 1.24 g/t Au over 0.8 m (Assessment report 20000020611). DDH ER21-02 returned 0.17% Cu, 21.2 g/t Au, and 173 g/t Ag over 1 m from 35.35 m depth, and 0.74% Cu, 0.143 g/t Au, and 10.1 g/t Ag over 1.84 m from 61.25 m depth (Assessment report 20000021011). Sample 181195 collected in 2021 returned 4.11 g/t Au, 48.6 g/t Ag, and 3.44% Cu from a massive sulphide in a diorite. Sample 181153 returned 1.17 g/t Au, 57.4 g/t Ag, and 6.55% Cu from quartz-chalcopyrite blebs (Assessment report 20000020427).
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
Map - Powell Lake sheet, Thunder Bay District
Publication Number: M2204 Scale: 1:31,680 Date: 1970
Author: Harris F.R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
MonoMap - Geology of the Moss Lake area, District of Thunder Bay
Publication Number: R085 Page: 54-55 Date: 1970
Author: Harris F.R.
Publisher Name: Ontario Dept. of Mines
Location:
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