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Ministry of Energy, Northern Development and Mines
Permanent Link to this Record: MDI000000001239| Deposit Name(s) | Ruby Lake Marble Quarry - 1996 |
|---|---|
| Deposit Status | prospect |
| Date Created | 2011-Apr-28 |
| Date Last Modified | 2017-Oct-11 |
| Created By | N Bennett |
| Revised By | T Pettigrew |
Primary Commodities: marble (building stones)
Township or Area: Corrigal
Latitude: 48° 58' 53.14" Longitude: -88° 9' 43.57"
UTM Zone: 16 Easting: 414970 Northing: 5426042 UTM Datum: NAD83
Resident Geologist District: Thunder Bay South
NTS Grid: 52A16
Point Location Description: Located using Google Earth. East of Ruby Lake.
Location Method: data compilation
Access Description: Located south of Highway 17. First turn east of the Nipigon Bridge. Follow logging road to the gate.
Prior to 1996 a logging road accessed the area and turned up the marble. In 1997 claims were registered to Don MacAlpine and trenching was conducted in 1997/1998. 2000-1: Ruby Lake Marble Ltd. conducted stripping, trenching and mapping. 2002: production and shipping of marble was severely curtailed due to reduced demand.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.20908 | 52A16NE2003 | Open |
Province: Superior
Subprovince: Sibley Supergroup
Geological Age: Mesoproterozoic
04/28/2011 (N Bennett) - The unit is metamorposed by overlying diabase. The dolomite has some areas with high silicate contents. The site may be classified in general terms as a softer, dolomitic marble.
10/11/2017 (T Pettigrew) - This marble consists of metamorphosed, Mesoproterozoic, Rossport Formation (Sibley Group) dolostone and other calcareous sedimentary rocks in the contact metamorphic aureole of Keweenawan diabase sills (Schnieders et al., 1999).
| Rock Type | Rank | Composition | Texture | Relationship |
|---|---|---|---|---|
| marble | 1 | is | ||
| dolomite | 1 | is | ||
| gabbro | 2 | diabase | hanging wall |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Habit Description |
|---|---|---|---|---|---|---|---|
| 1 | calcite | economic | ore | ||||
| 2 | carbonate | economic | ore | ||||
| 3 | dolomite | economic | ore | ||||
| 1 | quartz | economic | gangue |
04/28/2011 (N Bennett) - There are known chalcocite occurrences within the unit.
| Rank | Classification |
|---|---|
| 1 | metamorphic |
| 1 | sedimentary |
| 1 | skarn |
| Year | Tonnes | Commodities | Commodity Production | Reference | Comment |
|---|---|---|---|---|---|
| 1998 | 175 | Ofr5989, P. 2 | |||
| 1999 | 398 | Ofr6005, P. 2 | |||
| 2000 | 676 | Ofr6049, P. 2 | |||
| 2001 | 1276 | Ofr6081, P. 2 |
Publication - Thunder Bay South District; In: Report of Activities, 1998, Resident Geologist Program, Thunder Bay South District
Publication Number: OFR5989 Date: 1999
Author: Schnieders, B.R., Scott, J.F., Smyk, M.C., and O’Brien, M.S.
Publisher Name: OGS
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For detailed information regarding this mineral deposit please contact the Thunder Bay South Resident Geologist District Office