Ontario Geological Survey
Permanent Link to this Record:
MDI31C15NW00172
| Record Name(s) | Ardoch-James - 2018, James Property - 2000, Ardoch Zinc (Green Lake ) - 2000, James Mine - 2000 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1990-Nov-05 |
| Date Last Modified | 2024-Feb-16 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Zinc, Sillimanite
Township or Area: Clarendon
Latitude: 44° 57' 56.21" Longitude: -76° 53' 6.95"
UTM Zone: 18 Easting: 351323.46 Northing: 4980859.55 UTM Datum: NAD83
Resident Geologist District: Southern Ontario
NTS Grid: 31C15NW
Point Location Description: Property ' 12 ', 0.5 km NE of Little Green Lake.
Location Method: Conversion from MDI
Access Description: A system of gravel roads leads NE from Ardoch to Little Green Lake. The occurrence is near the NE shore of the lake. Access can be gained via Hwy 506, N 4 km from Ardoch, then E along the Ontario Hydro line access road.
1977: GSC Regional Lake Sediment Geochemical Reconnaissance Survey. 1979: St. Joseph Explorations Ltd carried out geology and soil geochemical surveys and dug 2 trenches. 1980-81: Selco Mining Corp completed VLF and magnetic geophysical surveys and diamond drilling. 1984: Young drilled on part of lot 34 (120 m) to evaluate the industrial mineral potential of the sillimanite gneiss. 1988-9: Homestake Mineral Development Co completed geological survey, geochemistry, magnetics, VLF-EM, stripping and trenching. 1993-4: B.J. Christie completed geological survey, geochemical survey and channel sampling.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| OP93-422 | 31C15NW2001 | 31C15NW2001 |
| 2.15524 | 31C15NW0015 | 31C15NW0015 |
| 2.10209 | 31C15NW0036 | 31C15NW0036 |
| 2.2926 | 31C15NW0059 | 31C15NW0059 |
| 2.3307 | 31C15NW0056 | 31C15NW0056 |
| 2.11427 | 31C15NW0031 | 31C15NW0031 |
Province: Grenville
Geological Age: Mesoproterozoic
| Rock Type | Rank | Composition | Texture | Relationship | Marble | 1 | Calcitic And Dolomitic | Host |
|---|---|---|---|---|
| Gneiss-Unsubdivided | 2 | Near |
Oct 30, 2019 (Sheree Hinz) - The property is underlain by calcitic and dolomitic marbles with interlayers of calc-silicates, and pelitic schist, paragneiss and sillimanite gneiss containing up to 30% sillimanite. Christie’s mapping in 1994 (31C15NW2001) shows the zinc mineralization is hosted by calcitic marble horizons. These rocks trend NE-SW and are moderately to steeply dipping toward the north.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Ore | ||||
| 2 | Sphalerite | Economic | Ore | ||||
| 3 | Galena | Economic | Ore | ||||
| 4 | Chalcopyrite | Economic | Ore |
Oct 30, 2019 (Sheree Hinz) - Disseminated sphalerite and pyrite in heavily silicified and brecciated marble; gold in cp-bearing quartz veins and sillimanite gneiss. Trench mapping and sampling by B.J. Christie returned assays of 28.52 g/t Au (grab sample), and 3737 ppb Au over 3.9m. Grab samples collected by Homestake Minerals in 1986 returned assays of 24 g/tonne Au and 296 g/tonne Ag. Gold with minor chalcopyrite and pyrite occurs in shear zones within dolomitic marble. The quartz gangue is bordered by a foot-wide reaction rim of tremolite. The best assay of grab samples yielded 0.25 oz/ton Au. A small sphalerite-pyrite occurrence was located on the east side of Green Lake in calcitic marble. Elsewhere pyrite, pyrrhotite, and magnetite occur primarily in paragneiss.
Mono - Metallogeny of the Grenville Province, southeastern Ontario
Publication Number: OFR5515 Page: 51 Date: 1984
Author: Carter T.R.
Publisher Name: Ontario Geological Survey
Location:
MonoMap - Base metal, molybdenum and precious metal deposits of the Madoc-Sharbot Lake area, southeastern Ontario
Publication Number: OFR5548 Page: 48-9 Date: 1985
Author: Malczak J., Carter T.R., Springer J.S.
Publisher Name: Ontario Geological Survey
Location:
Publication - National geochemical reconnaissance release NGR 2-76 regional lake sediment geochemical reconnaissance data eastern Ontario; Geological Survey of Canada, Open File 406
Publication Number: GSC OF 406 Date: 1977
Author: Hornbrook, E.H.W., Durham, C.C., Lynch, J.J.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129211
MonoMap - Geology of the Ardoch area, Frontenac County
Publication Number: R241 Page: 48-9 Date: 1988
Author: Pauk L.
Publisher Name: Ontario Geological Survey
Location:
Article - Geology of selected gold occurrences in eastern Ontario
Publication Number: MP116.061 Page: 280 Date: 1997
Author: Barron P.S.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of the Clarendon-Dalhousie area
Publication Number: ARV65-07.001 Page: 39 Date: 1998
Author: Smith B.L.
Publisher Name: Ontario Dept. of Mines
Location:
Publication - National geochemical reconnaissance release NGR 1-76 regional lake sediment geochemical reconnaissance data eastern Ontario; Geological Survey of Canada, Open File 405
Publication Number: GSC OF 405 Date: 1977
Author: Hornbrook, E.H.W., Durham, C.C., Lynch, J.J.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129210
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