Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42A11NE00008

Record: MDI42A11NE00008

General

Mineral Record Identification
Record Name(s) Rosario - T80-9 - 1980, Lacana - 1980
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1991-Jan-09
Date Last Modified 2023-Jan-12
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Tully

Latitude: 48° 43' 21.42"    Longitude: -81° 7' 22.61"

UTM Zone: 17    Easting: 490957.437   Northing: 5396628.447    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42A11NE

Point Location Description: Point plotted on OBM topo map from information in assessment file T-1946.

Location Method: Based on Assessment

Access Description: Access to area is from the east via bush trails that depart from the gravel road that leads past Ice Chest Lake.



Exploration History

1980: Rosario Resources carried out diamond drilling.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-1946, 51 42A11NE0027 42A11NE0027

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Tectonic Assemblage: Kidd-Munro

Geological Age: Neoarchean  

Metamorphism Type: Regional

Metamorphism Grade: Greenschist



Geology Comments

Dec 07, 2005 (G Seim) - Strip log for T80-9; 0 - 210 ft. Overburden, 210 - 257 ft. Altered ultramafic rock, 257 - 291 ft. Ultramafic volcaniclastic, 291 - 303 ft. Graphitic ultramafic tuff, 303 350 ft. Ultramfic tuff, 350 - 428 ft. Ultramafic Volcaniclastic, 428 - 517 ft. Ultramfic tuff, 517 ft. EOH.




Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Ultramafic lava flow-unsubdivided 1 Komatiite ?? Volcaniclastic Host

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1PyriteEconomicGangue

Mineralization Comments

Dec 07, 2005 (G Seim) - The interval 350 - 395 ft. (45 ft.) averaged 260 ppb Au and includes the interval 370 - 372.5 ft. that returned 1429 ppb Au.


Jan 12, 2023 (Q Unknown) - Diamond drilling by Rosario Resources in 1980 resulted in DDH T80-9 intersecting anomalous gold values hosted in an ultramafic volcaniclastic (komatiite ??) unit. In all, the anomalous values averaged 260 ppb Au along a core length of 45 feet (13.72 metres) in the 350-395 ft interval. The host rock was cut by numerous qtz-py-calcite veins, with both diffuse (earlier) and sharp (later) boundaries. Contains about 1-2% py overall, both as v. fine disseminated grains and as thin coatings on fracture surfaces. The drill log reported that the 360-375 ft section contained six, 2-10 cm wide, c.g. qz veins. Occasionally contain py and greasy green chlorite.



Mineral Record Details

References

Map - Timmins data series, Tully Township, District of Cochrane

Publication Number: P0699 Scale: 1:15,840    Date: 1997

Author: Hunt D.S., Richard J.A., Carey E.R.

Publisher Name: Ontario Geological Survey

Location:


Publication - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario

Publication Number: GSC OF 1087 Page: 42A-276  Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

Location: https://doi.org/10.4095/129999


Mono - Preliminary report on the Timmins-Kirkland Lake area, gold deposits file

Publication Number: OFR5467 Date: 1983

Author: Hodgson C.J.

Publisher Name: Ontario Geological Survey

Location:


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