Ontario Geological Survey
Permanent Link to this Record:
MDI52F05SE00013
| Record Name(s) | Monte Cristo - 1899, Lakeport - 1936 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 1989-Jan-10 |
| Date Last Modified | 2023-Jan-06 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Rowan Lake Area
Latitude: 49° 18' 49.87" Longitude: -93° 33' 45.58"
UTM Zone: 15 Easting: 459104.85 Northing: 5462498.44 UTM Datum: NAD83
Resident Geologist District: Kenora
NTS Grid: 52F05SE
Point Location Description: Precise
Location Method: Conversion from MDI
1899: six trenches were excavated and cleaned at Monte Cristo as well as two shafts referred to at the time as Little Bob's mine (later renamed Monte Cristo). Contemporaneous to the work at Monte Cristo, another shaft was sunk on Victor Island. 1936: prospects were acquired by Lakeport Gold Mines Ltd. a company established with the purpose of exploring the showings. Lakeport Gold Mines completed further trenching and 9 holes (675 meters) of diamond drilling between 1937 and 1938. These 9 holes consisted of 8 holes on Monte Cristo and 1 hole at Victor. 1983: optioned by Nuinsco Resources who carried out Induced Polarization and VLF surveys. 12 diamond drill holes were carried out over the Monte Cristo prospect where Nuinsco drilled underneath the historical shafts and verified Lakeport's mineralised intersections. 1984-1999: 99 drill holes (NM-1 to NM-99) were completed out on Rowan Lake along the Monte Cristo Shear Zone. Of these 99 drill holes, 41 holes and 21 holes were carried out on the Victor and Monte Cristo prospects respectively. 2011: Five drill holes totalling 924 m were completed.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| 2.52803 | 20000007409 | 20000007409 |
| 63.43096 | 52F05SE9655 | 52F05SE9655 |
| 2.8303 | 52F05SE0051 | 52F05SE0051 |
| 63.4780 | 52F05SE0021 | 52F05SE0021 |
| 2.9621 | 52F05SE0034 | 52F05SE0034 |
Province: Superior
Subprovince: Wabigoon
Belt: Savant Lake
Geological Age: Archean
Jul 25, 2016 (Andrew Tims) - The Monte Cristo prospect is located within the Monte Cristo Shear Zone, which cuts through the Cameron Lake Volcanics. The MCSZ consists of multiple sub-parallel high strain zones striking SW-NE and is commonly identifiable as a chlorite dominant schist. Monte Cristo prospect is hosted in veins surrounded by a chlorite-sericite schist. Silicification,sercitization and pyrite alteration are weak to moderate.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Basalt | Adjacent |
|---|---|---|---|---|
| Mylonite/Fault Gouge/Pseudotachylite | 2 | Shear Zone | Contains | |
| Vein | 3 | Contains |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Gold | Economic | Ore | ||||
| 3 | Chalcopyrite | Economic | Ore |
Jul 25, 2016 (Andrew Tims) - The Monte Cristo display a strong correlation between presence of pyrite and gold grade within the late breccia vein event when tension gashes coinciding with early dextral brittle-ductile shear development. These veins were overprinted by quartz-carbonate veins in a sinistral reactivation of MCSZ The mineralzation is made up of several shoots or pods that are discontinuous in cross-section and plan section. 2011: 5.0m @ 3.04 g/t Au (RMD-11-003), 6.0m @ 1.75 g/t Au (RMD-11-002) and 3.0m @ 2.22 g/t Au (RMD-11-001).
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| 1 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| 1 | Vein |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Monte Cristo | 1985 | Indicated Mineral Resource | 300000 | MP128 | to a depth of 213 m | Gold 0.12 oz/T |
Part - Geology of the Kakagi Lake area
Publication Number: ARV42-04.002 Page: 86-89 Date: 1998
Author: Burwash E.M.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Gold discoveries at Rowan Lake
Publication Number: ARV47-06.002 Page: 12-13 Date: 1997
Author: Thomson J.E.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Gold deposits of the Kenora-Fort Frances area, districts of Kenora and Rainy River
Publication Number: MDC016 Date: 1976
Author: Beard R.C., Garratt G.L.
Publisher Name: Ontario Division of Mines
Location:
Mono - Gold deposits of the Kenora-Fort Frances area, districts of Kenora and Rainy River
Publication Number: MDC016 Date: 1976
Author: Beard R.C., Garratt G.L.
Publisher Name: Ontario Division of Mines
Location:
Article - 1980 report of the Northwestern Regional Geologist and Kenora Resident Geologist
Publication Number: MP095.001 Date: 1997
Author: Beard R.C., Rivett A.S.
Publisher Name: Ontario Geological Survey
Location:
Mono - Feasibility of small scale gold mining in northwestern Ontario (parts of the districts of Kenora, Rainy River, and Thunder Bay), volume 1, text, volume 2, appendices
Publication Number: OFR5332 Date: 1981
Author: Neilson J.N., Bray R.C.E.
Publisher Name: Ontario Geological Survey
Location:
Article - The occurrence of gold in the Cameron-Rowan lakes area: preliminary report on the Monte Cristo and Victor Island gold prospects in the Monte Cristo shear zone
Publication Number: MP132.055 Date: 1997
Author: Melling D.R.
Publisher Name: Ontario Geological Survey
Location:
Compend - Summary of Field Work and Other Activities, 2011
Publication Number: OFR6270 Date: 2011
Author: Easton R.M., Burnham O.M., Berger B.R., Beakhouse G.P., Bajc A.F., Parker J.R., Kelly R.I., Debicki E.J.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology of the Rowan Lake Area, Northwestern Ontario
Publication Number: P3766 Scale: 1:20,000 Date: 2012
Author: Lewis D., Woolgar S.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology Kakagi-Rowan Lakes Area
Publication Number: P3594 Scale: 1:50,000 Date: 2007
Author: Johns G.W.
Publisher Name: Ontario Geological Survey
Location:
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