Ontario Geological Survey
Permanent Link to this Record:
MDI42E16NE00004
| Record Name(s) | Chipman Lake Stock - 1975 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Discretionary Occurrence |
| Date Created | 1996-Dec-15 |
| Date Last Modified | 2022-Sep-12 |
| Created By | |
| Revised By |
Primary Commodities: Granite
Township or Area: O'Meara
Latitude: 49° 56' 30.24" Longitude: -86° 13' 59.87"
UTM Zone: 16 Easting: 555013.39 Northing: 5532434.24 UTM Datum: NAD83
Resident Geologist District: Thunder Bay North
NTS Grid: 42E16NE
Point Location Description: Outcrop
Location Method: Data Compilation
Access Description: GENERAL LOCATION: The Chipman Lake stock is located in north-central O'Meara Township, approximately 13 km east of Longlac, in northwestern Ontario. ACCESS: Highway 11 east of Longlac 11.5 km. Bush road north of highway for 15.7 km, turn right onto road 17-7. Follow road for 3.0 km., turn left onto Ogahalla Road. Chipman Lake stock intersects the road 3.5 km from last intersection (Figure 15).
This occurrence has experienced minimal prospecting and exploration. As of 1994 Most of stock was open for staking.
Province: Superior
Subprovince: Wabigoon
Geological Age: Early Precambrian
Dec 07, 2005 (W Bellinger) - GENERAL GEOLOGY AND STRUCTURE: Sage (1985) described the geology of the Chipman Lake stock: The area is underlain predominantly by Early Precambrian rocks which in the vicinity of the south end of Chipman Lake, have been fenitized and intruded by Late Precambrian carbonatite dikes. The Early Precambrian rocks belong to the Wabigoon Subprovince of the Superior Province of the Canadian Shield.
| Rock Type | Rank | Composition | Texture | Relationship | Dioritoid-Unsubdivided | 1 | Diorite-Syenodiorite | Med To Fine Gr. | Host |
|---|
Dec 07, 2005 (W Bellinger) - MINERALOGY: Sage (1985) classified the stock as diorite to syenodiorite. JOINTING: Outcrop exposure is poor and those that are exposed are highly fractured and cross-cut by numerous granitic and dioritic dikes. COLOUR: Fresh surfaces are greenish in colour. TEXTURE: The syenites are medium to fine grained.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Feldspar | Economic | Ore | ||||
| 2 | Quartz | Economic | Ore |
Dec 07, 2005 (W Bellinger) - MINERALOGY: Sage (1985) classified the stock as diorite to syenodiorite. JOINTING: Outcrop exposure is poor and those that are exposed are highly fractured and cross-cut by numerous granitic and dioritic dikes. COLOUR: Fresh surfaces are greenish in colour. TEXTURE: The syenites are medium to fine grained. CHEMICAL ANALYSIS: Sample JC-1: 48.04 SiO2, 1.21 TiO2, 15.93 Al2O3, 4.56 Fe2O3, 6.09 FeO, 8.32 MnO, 6.11 MgO, 0.17 CaO, 4.20 Na2O, 2.73 K2O, 0.92 P2O5. Sample JC-5: 53.61 SiO2, 0.91 TiO2, 16.17 Al2O3, 4.04 Fe2O3, 3.80 FeO, 6.10 MnO, 4.63 MgO, 0.13 CaO, 4.65 Na2O, 4.01 K2O, 0.69 P2O5. Sample JC-2: 55.02 SiO2, 0.80 TiO2, 16.78 Al2O3, 3.03 Fe2O3, 4.23 FeO, 5.45 MnO, 4.18 MgO, 0.12 CaO, 4.78 Na2O, 4.05 K2O, 0.64 P2O5. Sample JC-4a: 55.42 SiO2, 0.74 TiO2, 16.71 Al2O3, 2.91 Fe2O3, 3.84 FeO, 5.57 MnO, 4.60 MgO, 0.09 CaO, 5.01 Na2O, 3.32 K2O, 0.47 P2O5. Sample JC-1: - monzodiorite. Sample JC-5: - alkali-feldspar syenite. Sample JC-2: - alkali-feldspar syenite. Sample JC-4a: - monzodiorite. (From Sage 1985).
Map - Geological series, Precambrian geology, Chipman Lake area, Thunder Bay and Cochrane districts
Publication Number: P1068 Scale: 1:15,840 Date: 1997
Author: Sage R.P., Bathe D., Wright W., Chamois P., Shewbridge K.
Publisher Name: Ontario Geological Survey
Location:
Mono - Dimensional Stone Occurrences and Deposits in Northwest Ontario
Publication Number: OFR5890 Page: 92-95 Date: 1994
Author: Hinz P., Landry R.M., Gerow M.C.
Publisher Name: Ontario Geological Survey
Location:
Thesis - The Petrography and Geochemistry of the Chipman Lake Alkaline-Carbonatite Complex
Publication Number: BSc thesis Date: 1976
Author: Biczok, J..
Publisher Name: Lakehead University
Location: Lakehead U. & Thunder Bay RGP
Book - Industrial Mineral Potential of Beardmore, Geraldton, Long Lac, Nakina Area, unpublished report
Publication Number: Date: 1991
Author: Burns, R.D.
Publisher Name:
Location: Thunder Bay RGP - Unpub.
Book - A Reconnaissance Study of the Chipman Lake “Carbonatite Complex”, Ontario; 21st Annual Institute on Lake Superior Geology
Publication Number: RPT LSI Date: 1975
Author: Jones, N.
Publisher Name: Northern Michigan University
Location: Thunder Bay RGP
Article - Batchawana-Pangis area (east half), District of Algoma
Publication Number: MP063.013 Page: 58-60 Date: 1997
Author: Siragusa G.M.
Publisher Name: Ontario Division of Mines
Location:
Mono - Geology of carbonatite-alkalic rock complexes of Ontario, Chipman Lake area, districts of Thunder Bay and Cochrane
Publication Number: S044 Date: 1985
Author: Sage R.P.
Publisher Name: Ontario Geological Survey
Location:
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office