Ontario Geological Survey
Permanent Link to this Record:
MDI42A11SE00012
| Record Name(s) | Hoyle Pit - 1979, Hoyle-Falconbridge - 1935, Hoyle Mine - 1939, Lang Option - 1937 |
|---|---|
| Related Record Type | Partial |
| Related Record(s) | |
| Record Status | Past Producing Mine With Reserves or Resources |
| Date Created | 1984-Oct-31 |
| Date Last Modified | 2023-Aug-03 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Silver
Township or Area: Whitney
Latitude: 48° 31' 38.01" Longitude: -81° 5' 34.54"
UTM Zone: 17 Easting: 493139 Northing: 5374906 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A11SE
Point Location Description: Hoyle Pit
Location Method: AMIS Site Visit
Access Description: The site is located south of highway 101, 10 km northeast of South Porcupine opposite the Pamour Mine. It became part of the Pamour open pit mine. The old shaft is located in lot 4 con 5 N½.
1935-36: Hollinger Consolidated gold Mines Ltd. – DD-24,169 ft, shaft sinking, underground development; 1937: Hoyle Mines Ltd. – surface DD-15,131 ft; 1938-49: Hoyle Gold Mines Ltd. – shaft to 1800 ft, underground development, in production. 1979-81: Pamour Porcupine Mines Limited – property optioned, ramp and level development. 1984: Falconbridge Limited – mapping, IP survey, DD-15-2599 m, assays. 1989-90: Giant Yellowknife Mines Limited – development and production
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2665/OM84-5P-184 / 63.4484 | 42A11SE0200 | 42A11SE0200 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Tectonic Assemblage: Deloro
Geological Age: Archean
Metamorphism Type: Regional
Metamorphism Grade: Greenschist
| Rock Type | Rank | Composition | Texture | Relationship | Ultramafic lava flow-unsubdivided | 1 | Komatiite | Adjacent |
|---|---|---|---|---|
| Conglomerate | 2 | Conglomerate | Contains | |
| Sandstone | 3 | Wacke | Contains | |
| Vein | 4 | Quartz | Host |
Jan 13, 2015 (A Wilson) - Underground ore was derived from the Pamour conglomerate and consisted of closely spaced quartz veins striking 020° to 045° which dipped 10° to 70° south. Where auriferous, generally the entire width (10-15 m) of the conglomerate was mines. Between the quartz veins the conglomerate is carbonatized and caries auriferous pyrite adjacent to the quartz veins. The mineralized were conformable with the conglomerate and plunged easterly. Auriferous quartz veins also occur in feldspathic wacke beds, but the lower density of quartz veins rendered this material less amenable to bulk mining.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 3 | Galena | Economic | Ore | ||||
| 4 | Silver | Economic | Ore | ||||
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Arsenopyrite | Economic | Gangue | ||||
| 4 | Pyrrhotite | Economic | Gangue | ||||
| 5 | Sphalerite | Economic | Gangue |
Jan 13, 2015 (A Wilson) - Gold values are positively correlated with the presence of pyrrhotite and pyrite and are strongly positively correlated with the presence of arsenopyrite, galena and sphalerite. These latter three sulphide minerals are only minor constituents of the mineralized material. Bleaching, silicification and sericitization are commonly associated with the gold mineralization.
| Rank | Classification |
|---|---|
| 1 | Lode (Gold) |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1949 | 936 |
Gold 94 Ounces |
ARV59-1 chart opposite p. 10 | |
| 1948 | 93532 |
Silver 4 Ounces Gold 8309 Ounces |
ARV58-1 chart opposite p. 10 | |
| 1947 | 927102 |
Silver 42162 Ounces Gold 241241 Ounces |
ARV57-1 chart opposite p. 10 | |
| 1946 | 951315 |
Silver 48140 Ounces Gold 250074 Ounces |
ARV56-1 chart opposite p. 16 | |
| 1944 | 951315 |
Silver 51 Ounces Gold 1100 Ounces |
ARV56-1 chart opposite p. 16 | mill destroyed in a fire |
| 1943 | 95804 |
Silver 1151 Ounces Gold 9731 Ounces |
ARV53-1 chart opposite p. 10 | |
| 1942 | 170206 |
Silver 2652 Ounces Gold 19890 Ounces |
ARV52-1 chart opposite p. 10 | 1941-44, 46-49; AVERAGE GRADE 0.10 OZ/TON |
| 1941 | 136504 |
Silver 2883 Ounces Gold 16719 Ounces |
ARV51-1 chart opposite p. 16 |
Book - The Abitibi Belt Gold Districts – Timmins to Kirkland Lake segment, Falconbridge Hoyle Open Pit, p. 21-23
Publication Number: Gold 86 Date: 1986
Author: A. Fyon et al.
Publisher Name: GAC-MAC
Location: Timmins RGO
File - Resident Geologist files T-0235, T-0383
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
Map - Precambrian Geology, Parts of Whitney and Hoyle Townships
Publication Number: P3547-REV Scale: 1:10,000 Date: 2005
Author: Bateman R.
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: 268 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
Map - Timmins data series, Whitney Township, District of Cochrane
Publication Number: P2123 Scale: 1:15,840 Date: 1981
Author: Hunt D.S., MacRae B.A., Maharaj D.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological Compilation of the Timmins Area, Abitibi Greenstone Belt
Publication Number: P3379 Scale: 1:100,000 Date: 1998
Author: Ayer J.A., Trowell N.F.
Publisher Name:
Location:
Book - Northern Miner 78-11-09, Pamour, p. 23
Publication Number: Press Releases Date: 1978
Author:
Publisher Name: N Miner Press
Location: Timmins RGO
Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay
Publication Number: MDC013 Page: 116-117 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Article - 1978 report of Northern Regional Geologist and Timmins Resident Geologist
Publication Number: MP084.005 Page: 57 Date: 1997
Author: Tihor L.A., Hunt D.S.
Publisher Name: Ontario Geological Survey
Location:
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:
Article - Timmins Resident Geologist's District - 1989
Publication Number: MP147.012 Page: 230 Date: 1997
Author: Luhta L.E., Sangster P.J., Ireland J.C., Hamblin C.D., Bradshaw M.P.
Publisher Name: Ontario Geological Survey
Location:
Publication - Geology and Ore Deposits of the Timmins District, Ontario [Field Trip 6]; Geological Survey of Canada, Open File 2161
Publication Number: OF2161 Page: 110-113 Date: 1991
Author: Fyon, J A, Green, A H
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/132290
Article - Timmins Resident Geologist's District - 1990
Publication Number: MP152.011 Page: 226 Date: 1997
Author: Luhta L.E., Sangster P.J., Ireland J.C., Farrow D.G., Draper D.M., Hamblin C.D.
Publisher Name: Ontario Geological Survey
Location:
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