Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31C12NE00021

Record: MDI31C12NE00021

General

Mineral Record Identification
Record Name(s) Bannockburn - 1984
Related Record Type Simple
Related Record(s)
Record Status Developed Prospect With Reported Reserves or Resources
Date Created 1984-Feb-29
Date Last Modified 2023-Apr-14
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Madoc

Latitude: 44° 38' 22.4"    Longitude: -77° 33' 17.2"

UTM Zone: 18    Easting: 297385   Northing: 4946086    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31C12NE

Point Location Description: Shaft just south of property symbol 2 west of Highway 62 and northeast of Bannockburn

Location Method: Conversion from MDI

Access Description: Drive to the hamlet of Bannockburn and turn west onto a bush road leading into the old Bannockburn gold mine. The site is approximately 1/4 mile west of the town of Bannockburn on the west side of the Moira River. Bannockburn is 16 km north of the town of Madoc.



Exploration History

1894-1898: Bannockburn gold mine in operation. 1905: The mine closed after being farmed out to an American on a royalty basis. 1894: four shafts were reported to have been sunk on the Property- they were 26, 30, 30, and 45 feet deep respectively. One of the shafts had 17 feet of drifting off of it. A ten stamp Mill was also reported to have been in operation at this time. 1897: The Bannockburn gold mining company deepened the shaft on which the drifting had been started, to 75 feet and new shaft was sunk to 35 feet. 1965: R. Belanger Carried out trenching, 12 diamond drill holes totaling 5,100 ft and sampling on and around lot 28, con. 5. 6 x-ray holes, all 140 to 150 feet in depth were drilled along the ore zone. Highest assays were around 3 oz/au per Ton. The shaft was pumped out and sampled at this time and values of 0.7 oz/au per ton were obtained. 1981-1987: Mono Gold Mines Inc. carried out exploration work including geophysical surveys and diamond drilling in the old bannockburn gold mine area. 1997-1998: Madoc Mining formed a new company, Adobe Ventures Limited, to exclusively develop the Bannockburn gold prospect. Adobe Ventures reported that testing of a 1,800 ton bulk sample trucked to the St. Andrews Goldfields mill in Timmins was not completed. The property was placed on temporary suspension and is currently inactive. (OFR 5992, p5). 2015: Crown William Mining Corp. commissioned stripping, trenching, channel sampling and georeferencing of historic diamond drill collars. This work identified 4 suites of quartz veins 2 of which are gold-bearing; significance of proximity to the volcanic-sedimentary contact; discovery of untested quartz veins. 2016: initiated a relogging and sampling of historic drill core from the Resident Geologist Program Tweed Drill Core Library (OFR6319, p.18).


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
Tweed file Madoc #103 / 2.11570 31C12NE0035 31C12NE0035
32 31C12NE0050 31C12NE0050
39 31C12NE0048 31C12NE0048
63.4698 31C12NE0036 31C12NE0036
63.5365 31C12NE0031 31C12NE0031
2.9048 31C12NE0043 31C12NE0043
2.16064 31C12NE0001 31C12NE0001
2.6903 31C12NE0047 31C12NE0047

Geology

Province: Grenville

Subprovince: Central Metasedimentary Belt

Geological Age: Mesoproterozoic  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Quartz Carbonate Contains
Syenite 2 Near
Sandstone 3 Greywacke Near

Lithology Comments

Jan 30, 2020 (Sheree Hinz) - The prospect is on the boundary of the east extension of a syenite intrusion in the north part of Madoc townships. The intrusion, known as the Gawley Creek Syenite is composed of a coarse-grained pink biotite-hornblende syenite. It straddles the north part of the Marmora-Madoc township. The east side of the syenite is bounded by clastic metasedimentary rock. In a N-S trending shear zone, the syenite has become a biotite carbonate-K-feldspar schist containing lenses and veinlets of quartz and carbonate and disseminated pyrite mineralization. The shear zone is up to 2 m wide and usually contains a series of parallel veins which range in width from 3 to 10cm. The contact between felsic intrusives and schistose metasediments is cut by a vein, strike N78E, dip almost vertical, up to 3 feet wide, which has been stripped for a continuous length of 700 feet.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
3MalachiteEconomic And AlterationOreSupergene1
4PyriteEconomic And AlterationOreSulphidation1
5PyrrhotiteEconomic And AlterationOreSulphidation1
1ChalcopyriteEconomicOre
2GoldEconomicOre
AnkeriteAlterationCarbonatization1MediumReplacement

Mineralization Comments

Jan 30, 2020 (Sheree Hinz) - The sheared syenite contains pyrite in disseminated subhedral to euhedral grains and massive lenses 1-2 cm wide; in localities near veins, the sulphide content is as high as 30%. Mineralized veins are composed of white, massive, medium-to coarse-grained quartz and locally ankerite with up to 10% disseminated pyrite, minor chalcopyrite, and gold. A grab sample of the vein material assayed at 0.17 oz/ton Au. House (1984) reports assays of 0.069 and 0.114 oz Au/ton from surface samples of quartz veins within the main zone.



Mineral Record Details

Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Bannockburn 1999 Possible 225000 OFR 5992, 1999, p. 5 Imperial measures 225,000 tons at .267 ounce gold per ton Gold .26 oz/T

References

Publication - Gold occurrences of Ontario east of lake Superior; Geological Survey of Canada, Memoir 192

Publication Number: GSC Mem 192 Page: 115  Date: 1936

Author: Kindle, E D

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/100824


Part - Sixth report of the Inspector of Mines

Publication Number: ARV05.009 Page: 264-265  Date: 1998

Author: Slaght A.

Publisher Name: Ontario Bureau of Mines

Location:


Part - Mineral occurrences in the north Hastings area

Publication Number: ARV52-03 Page: 32  Date: 1998

Author: Thomson J.E.

Publisher Name: Ontario Dept. of Mines

Location:


MonoMap - Geology of Madoc Township and the north part of Huntingdon Township, Hastings County

Publication Number: R073 Page: 1, 21  Date: 1968

Author: Hewitt D.F.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Gold deposits of Ontario, part 2, part of District of Cochrane, districts of Muskoka, Nipissing, Parry Sound, Sudbury, Timiskaming, and counties of southern Ontario

Publication Number: MDC018 Page: 34  Date: 1979

Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.

Publisher Name: Ontario Geological Survey

Location:


Mono - Gold development potential in eastern Ontario

Publication Number: OFR5379 Page: 3, 18  Date: 1982

Author: Kingston P.W., Papertzian V.C.

Publisher Name: Ontario Geological Survey

Location:


Mono - Metallogeny of the Grenville Province, southeastern Ontario

Publication Number: OFR5515 Page: 104  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: 296-301  Date: 1985

Author: Malczak J., Carter T.R., Springer J.S.

Publisher Name: Ontario Geological Survey

Location:


Mono - Report of Activities 1998, Resident Geologist Program, Southern Ontario Regional Resident Geologist Report: Southeast and Southwest Districts, Mines and Minerals Information Centre, and Petroleum Resources Centre

Publication Number: OFR5992 Date: 1999

Author: Sangster P.J., McGuinty W.J., Papertzian V.C., Steele K.G., Lee C.R., Laidlaw D.A., Stewart J.M., Carter T.R.

Publisher Name: Ontario Geological Survey

Location:


Publication - Rocks and minerals for the collector: Hull-Maniwaki, Quebec; Ottawa-Peterborough, Ontario; Geological Survey of Canada, Paper 69-50

Publication Number: Paper 69-50 Page: 113  Date: 1976

Author: Sabina, A P

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/103344


Publication - Rocks and minerals for the collector, Hull-Maniwaki, Quebec, Ottawa-Peterborough, Ontario; Geological Survey of Canada, Miscellaneous Report 41

Publication Number: GSC MR 41 Page: 88  Date: 1987

Author: Sabina, A P

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/122460


Mono - Exploration for gold in southeastern Ontario, 1980-1990

Publication Number: OFR5808 Page: 75-77  Date: 1991

Author: LeBaron P.S.

Publisher Name: Ontario Geological Survey

Location:


Mono - Report of Activities 2015, Resident Geologist Program, Southern Ontario Regional Resident Geologist Report: Southern Ontario and Southwestern Ontario Districts, and Petroleum Operations

Publication Number: OFR6319 Date: 2016

Author: Sangster P.J., LeBaron P.S., Charbonneau S.J., Laidlaw D.A., Debicki R.L., Wilson A.C., Fortner L.

Publisher Name: Ontario Geological Survey

Location:


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