Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI31C12SE00025

Record: MDI31C12SE00025

General

Mineral Record Identification
Record Name(s) Gawley No.1 - 1982
Related Record Type Simple
Related Record(s)
Record Status Prospect
Date Created 1982-May-06
Date Last Modified 2022-May-09
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Marmora

Latitude: 44° 33' 53.88"    Longitude: -77° 37' 31.97"

UTM Zone: 18    Easting: 291505.684   Northing: 4937978.825    UTM Datum: NAD83

Resident Geologist District: Southern Ontario

NTS Grid: 31C12SE

Point Location Description: As, Au circle symbol approx 2 km wsw of Malone, lot 18, con 9.

Location Method: Conversion from MDI

Access Description: 12.7 km west from the junction of hwy 7 and hwy 62, just north of Madoc. Turn north (right) onto road to Deloro. At Deloro post office, 2.15 km. turn north twoards Malone. Continue on gravel road for 7.1 km. Access lane is ll.5 km from the juntion of the highways. Turn south (left). Continue on foot south 720 m. Then head west 230 m to the Gwaley 1 shafts.



Exploration History

In 1901, the Atlas Mining Company sunk a shaft 100 feet deep. Prior to 1983, an average sample of dump material assayed by the Mines Branch contained 14.53% arsenic, 1.43% copper, 0.09 oz per ton Au and 0.16 ox/ton silver. In 1984, a magnetic survey, self-potential survey and a VLF electromagnetic survey were conducted by the Goldbrook Exploration Co.


Geology

Province: Grenville

Geological Age: Mesoproterozoic  



Geology Comments

Dec 07, 2005 (C Papertzian) - The property is underlain by late Precambrian calcareous sediments of the Grenville Structural Province. The deposit occurs in a quartz vein within the calcareous sediments and is related to a late precambiran felsic intrusive (the Deloro Stock) located to the east of the deposit. The vein is mineralized with arsenopyrite, pyrite and chalcopyrite.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Vein 1 Contains

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
5ArsenopyriteEconomicOre
10ChalcopyriteEconomicOre
15GoldEconomicOre
20PyriteEconomicOre

Mineral Record Details

Site Visit Information

Date: Feb 21, 2001

Geologist: C Papertzian

Notes: The property was first visited on November 19, 1999. No outcrop was visible. The dump material, which was approximately 20 feet high, contained arsenopyrite, quartz, and calcareous metasediments. A grab sample was collected from the dump material and was sent to the OGS lab in Sudbury. It was analysed for both gold and silver. Gold assyed at 0.05 oz/ton, while silver was not detected. This site was to be rehabilitated in the winter of 2000. A second vist was made to the property on March 14, 2000 after the rehabilitation work was completed. Both shafts had been capped and are now marked by a vent pipe. The dump material was used to cover the shaft caps.



References

Part - Arsenic in Ontario

Publication Number: ARV11.009 Page: 104  Date: 1998

Author: Wells J.W.

Publisher Name: Ontario Bureau 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: 44  Date: 1979

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

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:


Mono - Geology of Belmont, Marmora, and southern Methuen townships, Peterborough and Hastings counties

Publication Number: OFR5537 Page: 193  Date: 1985

Author: Bartlett J.R., Moore J.M.

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: 351K  Date: 1985

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

Publisher Name: Ontario Geological Survey

Location:


File - Resident Geologist Files 1986 Mineral Deposit File

Publication Number: Min Dep Date: 1986

Author:

Publisher Name:

Location: Tweed RGP


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For detailed information regarding this mineral record please contact the Southern Ontario Resident Geologist District Office