Ontario Geological Survey
Permanent Link to this Record:
MDI32E04SW00018
| Record Name(s) | North Dike - 1991, Dex - 1985, Steele - 1959 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Prospect |
| Date Created | 1985-Aug-19 |
| Date Last Modified | 2023-Jul-25 |
| Created By | |
| Revised By |
Primary Commodities: Lithium, Tantalum
Secondary Commodities: Beryllium, Molybdenum, Yttrium, Cesium
Township or Area: Steele
Latitude: 49° 1' 57.71" Longitude: -79° 55' 51.92"
UTM Zone: 17 Easting: 578131 Northing: 5431641 UTM Datum: NAD83
Resident Geologist District: Kirkland Lake
NTS Grid: 32E04SW
Point Location Description: Outcrop
Location Method: Field Visit with GPS
Access Description: The property is accessed by the Trans-limit road from Cochrane and a southern branch leading to the former railway station of Eades near the north shore of Lake Abitibi. A 3.8 km bush road from the branch road to Eades leads directly to the property.
1959: Discovered during ODM mapping by S.B. Lumbers. 1962-1963 - Canadian Johns-Manville - prospecting, sampling. 1971-1974: L. Darby - Prospecting, mapping, stripping, trenching and drilling 1975: Dex Ltd. evaluated the property for the production of phlogopite to supply paint and electrical industries. 1989-1990: G. O'Reilly - Prospecting and sampling. 1991: J. Burns - prospecting, mapping, ground magnetic survey and sampling. 1996-1998: G. O'Reilly - Prospecting and sampling. 1998: OGS - sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| KL-0644/ W7308.37 | 32D13NW5003 | 32D13NW5003 |
| KL-0644/ W7308.207 | 32D13NW5004 | 32D13NW5004 |
| KL-0644/ 12 | 32E04SW0008 | 32E04SW0008 |
| 2.23394 | 32E04SW2003 | 32E04SW2003 |
| KL-4462/2.18666 | 32E04SW2001 | 32E04SW2001 |
| KL-0644/ W7208.219 | 32D13NW5001 | 32D13NW5001 |
Province: Superior
Subprovince: Opatica
Geological Age: Archean
Dec 07, 2005 (D Guidon) - The property is near the contact of the Case Batholith to the north and the Scapa Metasediments to the South. The batholith has a mapped and inferred extent in excess of 5000 square kilometres. It is unkown if this is a single or series of intrusions. The intrusion is mainly quartz monzonite, but near its contacts, it grades to a granodiorite. A wedge of metasediments (Scapa Metasediments) cross Steele Township along the southern contact of the batholith. They vary in thickness from 0.5 km on the west to greater than 5 km on the east. A set of 3 subparallel pegmatite dikes strike obliquely to the batholoith/sediment contact. The maximum known dimensions of the largest dike are 420 m long by 30 m wide. Each of the dikes is complexly zoned.
| Rock Type | Rank | Composition | Texture | Relationship | Pegmatite | 1 | Spodumene | Host |
|---|---|---|---|---|
| Granodiorite | 2 | Hanging Wall | ||
| Schist-Unsubdivided | 3 | Quartz-Feldspar-Biotite | Metasediment | Near |
Jan 25, 2016 (D Guidon) - The following has been condensed from a report by J. Burns (1991, assessment file KL-3240). The Scapa Metasediments trend in a southeast direction and dip southward between 60 and 70 º. Bedding varies from crude to well defined with individual beds ranging between 1 and 2 cm in thickness. In the area of the property, the unit is fine grained and schistose. Quartz, feldspar and biotite are the main minerals with occasional garnets. Staurolite is common in some beds. Granodiorite is the dominant phase of the batholith near its contact. It is grayish-pink, massive, medium to coarse grained and equigranular. The pegmatites are zoned. The border phase is rarely more than 2 m thick and composed of quartz, feldspar and muscovite. The average grain size of the coarse grained zone is 1-2 cm. Spodumene concentrations are greatest in those zone and may be as high as 15-20% of the rock. Crystals average 3-7 cm. In the very coarse zone, quartz, feldspar and muscovite range from 2-5 cm. Spodumene crystals are fewer in number but may be 50 cm long and 5-7 cm in diameter. In the quartz core, grain size is in excess of 5 cm and is composed of mainly quartz with feldspar and spodumene. Spodumene crystals are up to 90 cm in length. Property visit by J. Selway The north dike consists of the following pegmatite zones: 1. Garnet aplite border zone (with minor oxide minerals); 2. Quartz+muscovite+ K-feldspar zone; 3. Aplite pods; 4. Quartz-rich core zone with euhedral white K-feldspar; 5. Spodumene-rich zone (muscovite-K-feldspar-quartz-spodumene). Local green beryl occurs along the contact of the aplite border zone and a thin quartz-rich layer. Two minor molybdenite pods occur in the granitic zone.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Spodumene | Economic | Ore | ||||
| 2 | Tantalite | Economic | Ore | ||||
| 3 | Pollucite | Economic | Ore | ||||
| 1 | Quartz | Economic | Gangue | ||||
| 2 | Feldspar | Economic | Gangue | ||||
| 3 | Garnet | Economic | Gangue | ||||
| 4 | Sphalerite | Economic | Gangue | ||||
| 5 | Muscovite | Economic | Gangue | ||||
| 6 | Apatite | Economic | Gangue | ||||
| 7 | Zircon | Economic | Gangue | ||||
| 8 | Beryl | Economic | Gangue | ||||
| 9 | Pyrochlore | Economic | Gangue | ||||
| 10 | Molybdenite | Economic | Gangue |
Dec 07, 2005 (D Guidon) - The above minerals were identified in a report by E.H. Nickel of the Department of Mines and Technical Surveys in 1963 (see assessment file KL-0644). Pollucite was found in a coarse pegmatitic sample. Columbite-tantalite was found in both aplitic and pegmatitic phases of the samples submitted. Spodumene is found in all phases. Comments by J. Selway albite (aplite), quartz, muscovite, K-feldspar, spodumene, beryl, spessartine garnet, molydbenite, fluorapatite, columbite-tantalite.
| Commodity | Analytical Method | Digestion Method | Result | Unit | Limit | Qualifier |
|---|---|---|---|---|---|---|
| Cesium | Unknown | 364 | ppm | |||
| Lithium | Unknown | .43 | % | |||
| Tantalum | Unknown | 638 | ppm | |||
| Yttrium | Unknown | 290 | ppm |
| Rank | Classification |
|---|---|
| 1 | Pegmatite |
| Rank | Characteristic |
|---|---|
| 2 | Layered |
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Irregular | 100 | 12 | 65 | 50 |
Date: Jul 28, 1999
Geologist: D Guidon
Notes: Property visited September 23, 1998 with G. O'Reilly. Samples collected: 98320 - green greisen from the north zone. According to G. O'Reilly it may contain tantalite.
File - Resident Geologist files KL-2653, KL-3240
Publication Number: Date:
Author:
Publisher Name:
Location: Kirkland Lake RGP office
Map - Steele, Bonis and Scapa townships, District of Cochrane
Publication Number: M2018 Scale: 1:31,680 Date: 1997
Author: Lumbers S.B.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Burntbush-Detour lakes, Cochrane District
Publication Number: M2453 Scale: 1:100,000 Date: 1982
Author: Johns G.W.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Geology of Steele, Bonis, and Scapa townships, District of Cochrane
Publication Number: R008 Page: 29, 45 Date: 1997
Author: Lumbers S.B.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Molybdenum deposits of Ontario
Publication Number: MDC007 Page: 21 Date: 1968
Author: Johnston F.J.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Burntbush-Detour lakes area, District of Cochrane
Publication Number: R199 Page: 65-66 Date: 1982
Author: Johns G.W.
Publisher Name: Ontario Geological Survey
Location:
File - Res/Reg Property Visit Report KL #165
Publication Number: PV 165 Date: 1980
Author: Lovell, H.L.
Publisher Name:
Location: Kirkland Lake RGO
Mono - Fertile Peraluminous Granites and Related Rare-Element Mineralization in Pegmatites, Superior Province, Northwest and Northeast Ontario: Operation Treasure Hunt
Publication Number: OFR6099 Page: 105-107 Date: 2003
Author: Breaks F.W., Selway J.B., Tindle A.G.
Publisher Name: Ontario Geological Survey
Location:
Compend - Summary of Field Work and Other Activities, 2002
Publication Number: OFR6100 Page: 6.33-6.40 Date: 2002
Author: Baker C.L., Debicki E.J., Kelly R.I., Parker J.R.
Publisher Name: Ontario Geological Survey
Location:
Article - The western Abitibi subprovince in Ontario
Publication Number: SV04-01.011 Date: 1997
Author: Jackson S.L., Fyon J.A.
Publisher Name: Ontario Geological Survey
Location:
Book - Orbicular Rocks: A Review:p. 409-4
Publication Number: GSAB.v77 Date: 1966
Author: D.J. Leveson
Publisher Name: GSA
Location: Kiriland Lake RGO
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