Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42B01SW00019

Record: MDI42B01SW00019

General

Mineral Record Identification
Record Name(s) Ultrex (HW85-1) - 1984
Related Record Type Simple
Related Record(s)
Record Status Occurrence
Date Created 1999-Nov-08
Date Last Modified 2022-Nov-03
Created By
Revised By

Commodities

Primary Commodities: Gold, Copper



Location

Township or Area: Horwood

Latitude: 48° 0' 6.27"    Longitude: -82° 19' 26.44"

UTM Zone: 17    Easting: 401239.075   Northing: 5317341.996    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42B01SW

Point Location Description: Diamond drill hole set up for HW85-1

Location Method: Field Visit with GPS

Access Description: The showing is located on the east shore of Horwood Lake and easy access is possible via boat to a point 300m north of the drill collar. From the shore a skidder trail extends south to the set up.



Exploration History

1984-85: Ultrex Petroleum - geological mapping, mag, Em and IP surveys, diamond drilling. 1989: Tarzan Gold - reconnaissance mapping and prospecting.


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-2891, 2.7102 42B01SE0080 42B01SE0080
2.8511, T-2891 42B01SE0048 42B01SE0048
63.4739, T-2891 42B01SE0044 42B01SE0044

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

Geological Age: Neoarchean   Geochronological Age: 2700 MA   Geochron. Age Ref.: GOO VOL 1

Metamorphism Type: Regional

Metamorphism Grade: Greenschist



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic lava flow-unsubdivided 1 Basalt, Tholeiitic Fe Host

Lithology Comments

Dec 07, 2005 (A Wilson) - Mineralization is hosted in massive basalts. These basalts are part of a sequence of Fe tholeiitic massive and pillowed flows with intercalated tufaceous horizons. The basalts intersected in the hole are predominantly fine-grained, though there are local medium to coarse grained intervals. Pyrite and pyrrhotite are common accessories, but occur in low concentrations disseminated throughout the basalt and also are locally concentrated in aggregates together with calcite. A stockwork of hairline carbonate veins occur locally, and even more restricted are some minor quartz veins with adjacent epidote-carbonate alteration.




Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
1ChalcopyriteEconomicOre
1PyriteEconomicGangue
2PyrrhotiteEconomicGangue
CarbonateAlterationCarbonatization1WeakNetwork

Mineralization Comments

Dec 07, 2005 (A Wilson) - In hole HW85-1a 3 m interval (between 165 and 175 feet) of massive sulphide veins has been reported. An examination of the core shows that this interval contains coarse grained sulphides (2 - 3 mm) in loose aggregates or trails. There are a numbe rof these trails in the upper and lower part of the interval and the total sulphide percentage is less than 5%. Pyrrhotite is the dominant sulphide with lesser amount of pyrite and chalcopyrite. Grab samples returned values of 0.82 g/t Au, 0.35 g/t Ag and 0.8 % Cu.



Mineral Record Details

Classification
RankClassification            
1 Magmatic
Characteristics
Rank Characteristic            
1 Disseminated

Mineral Zones - Size and Shape

Rank: 1       Structure Type: None

Zone Name: Detour Lake - Rank 1
Shape Length Thickness Depth Strike Dip Plunge Trend Age Reference
Unknown 1

References

MonoMap - Mineral Prospects of the Swayze Greenstone Belt (Volume 1, Parts of NTS 41 O and Volume 2, Parts of NTS 41 P, 42 A and 42 B)

Publication Number: OFR5912 Page: 608-609  Date: 1995

Author: Fumerton S.L., Houle K.A.

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