Ontario Geological Survey
Permanent Link to this Record:
MDI31M04SW00077
| Record Name(s) | Diadem Prospect - 1969, Copperfields Mining Inc. - 1970 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1980-Jun-05 |
| Date Last Modified | 2023-Aug-25 |
| Created By | |
| Revised By |
Primary Commodities: Copper, Nickel
Township or Area: Strathcona
Latitude: 47° 2' 26.74" Longitude: -79° 49' 28.37"
UTM Zone: 17 Easting: 589296 Northing: 5210364 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 31M04SW
Point Location Description: cluster of drill holes on east shore of Lake Temagami
Location Method: Based on Assessment
Access Description:
1953: Candela Development Co. completed a magnetometer ground geophysical survey.1956: Diadem Mines Ltd. completed 13 diamond drill holes totaling 4476 ft., mapping, and ground geophysics. 1960: N.B. Keevil completed a magnetometer ground geophysical survey. 1960-70: Copperfields Mining Corporation Limited completed 6 diamond drill holes totaling 1879 ft, 27 line miles of DIGHEM airborne geophysical survey, geological mapping. 2000-2002: Temex Resources Corp. completed 3 diamond drill holes totaling 436m, prospecting, a lithogeochemical survey, and 18 line km of electromagnetic very low frequency and magnetometer surveys. 2014: Northstar Gold Corp completed ground geophysical surveys including 13 line km of electromagnetic very low frequency and magnetometer surveys.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 15 | 31M04SW0035 | 31M04SW0035 |
| 63.345 | 31M04SW9745 | 31M04SW9745 |
| 63.2790 | 31M04SW0050 | 31M04SW0050 |
| 63A.477 | 31M04SW0053 | 31M04SW0053 |
| 63.1065 | 31M04SW0054 | 31M04SW0054 |
| 2.21650 | 31M04SW2050 | 31M04SW2050 |
| 2.20620 | 31M04SW2047 | 31M04SW2047 |
| 2.21014 | 31M04SW2049 | 31M04SW2049 |
| 2.54972 | 20000008107 | 20000008107 |
| 2.23562 | 31M04SW2053 | 31M04SW2053 |
| 16 | 31M04SW0023 | 31M04SW0023 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Temagami
Geological Age: Archean
| Rock Type | Rank | Composition | Texture | Relationship | Intermediate lava flow-unsubdivided | 1 | Pyritic | Contains |
|---|---|---|---|---|
| Diorite | 2 | Diorite | Host |
Mar 21, 2019 (Sheree Hinz) - The area is underlain by an assemblage of volcanic rocks which vary in composition from andesite to rhyolite. The volcanics are intruded to the southwest by a granitic batholith, and by discordant diabase and other dykes. An extensive sill of metadiorite conformably intrudes the felsic volcanics on the claim group and the area to the southwest. An unusual feature of the intrusion is an intermittent concentration of pyrite with intergrowths of minor chalcopyrite and complex nickel minerals known as the "Pyrite Zone " along its southern.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Pyrite | Economic | Gangue |
Mar 21, 2019 (A Wilson) - In 1956 Diadem Mines Ltd. calculated a reserve of 500,000 tons of possible ore to a depth of 500 feet down dip. The zone is interpreted to be 700 feet long and 15 feet wide.
| Rank | Classification |
|---|---|
| 1 | Mafic-Ultramafic Intrusion |
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 213 | 4.5 |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Diadem | 1956 | Unclassified | 453592 | MDC012, p. 202-203 | Copper .5 %, Nickel .1 % |
File - Resident Geologist files CO-1956, CO-1959, CO-1961
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
MonoMap - Geology of the northeast Temagami area, District of Nipissing
Publication Number: R163 Page: 110-111 Date: 1978
Author: Bennett G.
Publisher Name: Ontario Geological Survey
Location:
Mono - Copper, nickel, lead and zinc deposits of Ontario
Publication Number: MDC012 Page: 202-203 Date: 1969
Author: Shklanka R.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Briggs and Strathcona townships, Nipissing District
Publication Number: M2324 Scale: 1:31,680 Date: 1976
Author: Bennett G.
Publisher Name: Ontario Division of Mines
Location:
Map - Strathcona Township, District of Timiskaming
Publication Number: P0596 Scale: 1:15,840 Date: 1997
Author: Bennett G., McNally N.K.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Copper, nickel, lead and zinc deposits in Ontario (revised to February, 1957)
Publication Number: MDC002 Page: 108 Date: 1957
Author: Thomson J.E., Ferguson S.A., Johnston W.G.Q., Pye E.G., Savage W.S., Thomson R.
Publisher Name: Ontario Dept. of Mines
Location:
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