Ontario Geological Survey
Permanent Link to this Record:
MDI000000001648
| Record Name(s) | Lake Shore DDH 144-08-08 - 2008 |
|---|---|
| Related Record Type | |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2014-Feb-10 |
| Date Last Modified | 2023-Jun-16 |
| Created By | |
| Revised By |
Primary Commodities: Rare Earth Elements
Township or Area: Thorneloe
Latitude: 48° 21' 50.03" Longitude: -81° 34' 37.79"
UTM Zone: 17 Easting: 457250 Northing: 5356908 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A05NE
Point Location Description: drill collar for DDH 144-08-08
Location Method: Data Compilation
Access Description: The drill site is located on the west side of highway 144, just south of the Bristol – Thorneloe Township boundary.
2008: Lake Shore Gold Corp. - DD
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Neoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Syenite | 1 | Host |
|---|---|---|---|---|
| Intermediate lava flow-unsubdivided | 2 | Adjacent |
Feb 10, 2014 (A Wilson) - The syenitic complex was observed in drill core from the northwestern corner of Thorneloe Township and interpreted from diamond drill logs in the northwestern corner of Price Township. This unit varies in composition from ultramafic to felsic with a wide variation in potassium feldspar content (0-80%). Gradational contacts from ultramafic to felsic compositions were observed, but there is also a more felsic component crosscutting the more mafic component with sharp contacts observed. Locally, felsic patches are found in a mafic to ultramafic matrix. Biotite, garnet, apatite and titanite were either observed or mentioned in the drill logs indicating that this syenitic complex has an alkalic affinity. Several syenite to monzonite dikes with widths of less than 1 m were observed crosscutting the metavolcanic and metasedimentary rocks.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| Feldspar | Alteration | Unknown | 1 | Unknown | Disseminated |
Feb 10, 2014 (A Wilson) - Locally, the potassium feldspar is megacrystic up to 5 cm in length. Total REE from a sample of core from DDH 144-08-08, returned 1377.278 ppm REE (0.13% REE).
| Rank | Characteristic |
|---|---|
| 1 | Intrusive |
Map - Geological Compilation of the Timmins Area, Abitibi Greenstone Belt
Publication Number: P3379 Scale: 1:100,000 Date: 1998
Author: Ayer J.A., Trowell N.F.
Publisher Name:
Location:
Map - Timmins, Precambrian geology
Publication Number: M2455 Scale: 1:50,000 Date: 1982
Author: Pyke D.R.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological series, Precambrian geology of Thorneloe Township, Cochrane District
Publication Number: P2502 Scale: 1:15,840 Date: 1982
Author: Choudhry A.G.
Publisher Name: Ontario Geological Survey
Location:
Article - Geology and Mineral Potential of Price and Thornloe Townships, Abitibi Greenstone Belt
Publication Number: OFR6280.005 Page: 5-1 to 5-14 Date: 2012
Author: Préfontaine S.
Publisher Name: Ontario Geological Survey
Location:
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For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office