Ontario Geological Survey
Permanent Link to this Record:
MDI41O15SW00005
| Record Name(s) | Lyall-Beidelman Occurrence - 1933, Dalhousie Halcrow - 1966, G. Bastarache - 1966 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 1994-Jul-02 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Halcrow
Latitude: 47° 49' 55.44" Longitude: -82° 56' .25"
UTM Zone: 17 Easting: 355312.001 Northing: 5299445.004 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 41O15SW
Point Location Description: Precise: UTM coord of pit located by AMIS field visit in 2000
Location Method: AMIS Site Visit
Access Description: Access is difficult, requiring a crossing of the Ivanhoe River. Though it is possible take a canoe up or down the Ivanhoe River, the trip does require a portage and then a half kilometre traverse. Alternatively a float plane can be taken to a nearby lake on the Ivanhoe river.
1933: J.C. Beidelman and associates excavated a series of deep trenches on quartz veins in a shear from which visible gold was panned. Chip sampling returned a value of 1 g/t gold (0.03 opt). 1966: Gerard Bastarache drilled six short holes in the vicinity of the original trenches. Disseminated pyrite and trace of chalcopyrite were reported but allegedly no significant assays were obtained. 1981-82: Sulpetro Minerals carried out a geological mapping program centred on the old trenches. Follow up work consisted of a ground geophysical surveys. 1992: Messrs Jones and Filo re-evaluated the property, cleaned out and resampled the old trenches. 1995, 1997: ALCANEX LTD (W. Troup, B. Otton) - Geochemical and geophysical surveys, sampling from existing trenches
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2472 / 2.5190 | 41O10NW0095 | 41O10NW0095 |
| T-3594 / 2.16896 | 41O15SW0054 | 41O15SW0054 |
| T-4108 / 2.18794 | 41O15SW2007 | 41O15SW2007 |
| T-3553 / 2.14953 | 41O15SW9085 | 41O15SW9085 |
| T-4200 / OP92-00272 | 32D05NW0112 | 32D05NW0112 |
| T-2472 / 2.4306 | 41O10NW0097 | 41O10NW0097 |
| T-2103 | 41O15SW0098 | 41O15SW0098 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Swayze
Tectonic Assemblage: Halcrow-Swayze
Geological Age: Neoarchean Geochronological Age: 2700 MA Geochron. Age Ref.: GOO VOL 1
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
Dec 07, 2005 (S Fumerton) - The mineralized veins are hosted in an east-west fracture/shear system.
| Rock Type | Rank | Composition | Texture | Relationship | Vein | 1 | Quartz | Vein | Host |
|---|---|---|---|---|
| Conglomerate | 2 | Conglomerate | N/A | |
| Syenite | 3 | Syenite | Porphyritic | Adjacent |
| Mylonite/Fault Gouge/Pseudotachylite | 4 | Shear Zone | Contains | |
| Vein | 5 | Quartz | Contains |
Dec 07, 2005 (S Fumerton) - Quartz veins host the mineralization. In turn the veins occur in a feldspar porphyritic syenite which has intruded a sequence of mafic volcanics and polymictic conglomerates. The syenite is relatively massive and contains between 15 and 50% feldspar phenocrysts in a fine grained matrix.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Gold | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Arsenopyrite | Economic | Gangue | ||||
| 3 | Chalcopyrite | Economic | Gangue | ||||
| Hematite | Alteration | Hematization | 1 | Weak | Replacement |
Dec 07, 2005 (S Fumerton) - Fine disseminated pyrite forming up to 3% is erratically developed in the syenite. Arsenopyrite occurs locally in the narrow quartz veins and is associated with the better assay values.
May 05, 2009 (D Draper) - 1995 sampling by Alcanex consisted of 11 grab samples in and around an existing trench. Six of these samples assayed from 525 ppb to 8340 ppb Au.
Dec 07, 2005 (A Wilson) - Values of approximately 1 g/t Au were obtained at the time of discovery. Results from the sampling conducted by Sulpetro Minerals returned values as high as 4.3 g/t although the average value was between 0.1 and 0.4 g/t. Samples collected by Filo and Johns in 1992 returned values ranging between trace and 1.4 g/t Au.
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Unknown | 90 | N/A | N/A |
Map - Swayze gold area, District of Sudbury, Ontario
Publication Number: ARM43B Scale: 1:63,360 Date: 1997
Author: Rickaby H.C.
Publisher Name: Ontario Dept. of Mines
Location:
Part - Geology of the Swayze gold area
Publication Number: ARV43-03.001 Page: 33 Date: 1998
Author: Rickaby H.C.
Publisher Name: Ontario Dept. of Mines
Location:
Map - Halcrow and Denyes townships, Sudbury District
Publication Number: M2120 Scale: 1:31,680 Date: 1997
Author: Donovan J.F.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of Halcrow-Ridout lakes area, District of Sudbury
Publication Number: R063 Page: 41-42 Date: 1968
Author: Donovan J.F.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - Geology of the Chapleau area, districts of Algoma, Sudbury, and Cochrane
Publication Number: R157 Date: 1977
Author: Thurston P.C., Siragusa G.M., Sage R.P.
Publisher Name: Ontario Division of Mines
Location:
Map - Geological Compilation of the Swayze Area, Abitibi Greenstone Belt
Publication Number: P3511 Scale: 1:100,000 Date: 2002
Author: Ayer J.A., Trowell N.F.
Publisher Name: Ontario Geological Survey
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: 102 Date: 1979
Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.
Publisher Name: Ontario Geological Survey
Location:
Book - Sudbury Timmins Algoma Mineral Program, Project 1: mineral inventory of the Sudbury-Timmins-Sault Ste. Marie region, Ontario
Publication Number: GSC OF 1087 Page: 41O-120 Date: 1985
Author: Rose, D. G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
Book - Halcrow Township - unpublished GDIF
Publication Number: GDIF Date: 1988
Author: Resident Geologist Office
Publisher Name:
Location: Timmins RRGO
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: 233-234 Date: 1995
Author: Fumerton S.L., Houle K.A.
Publisher Name: Ontario Geological Survey
Location:
Map - Geology, Swayze greenstone belt, Rollo Lake, Ontario
Publication Number: OF 3384b Scale: 1:50,000 Date: 1999
Author: Heather, K B; Shore, G T
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/210450
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office