Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42A11SE00018

Record: MDI42A11SE00018

General

Mineral Record Identification
Record Name(s) Bonwhit Mine - 1951
Related Record Type Partial
Related Record(s)
Record Status Past Producing Mine Without Reserves or Resources
Date Created 1981-Feb-17
Date Last Modified 2023-Jan-06
Created By
Revised By

Commodities

Primary Commodities: Gold



Location

Township or Area: Whitney

Latitude: 48° 30' 59.26"    Longitude: -81° 9' 28.34"

UTM Zone: 17    Easting: 488341.49   Northing: 5373717.23    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42A11SE

Point Location Description: fenced shaft

Location Method: AMIS Site Visit

Access Description: Drive north for 2 km from South Porcupine along the Hoyle Pond access road. Turn east on a bush road and travel 850 m to the site. The site lies 75 m north of the road.



Exploration History

1947-51: Bonetal Gold Mines Ltd. - surface diamond drilling, underground development accessed from 970-ft level of Porcupine Reef Mines Ltd. 1951: Bonwhit Mines Limited - subsidiary of Broulan Reef Mines Limited; owns the part of Bonetal Mines that was developed from the Reef shaft, commenced production in October 1951. 1951-54: Bonwhit Mines Ltd.- development and production, milling at the Broulan Reef Mines Ltd. mill. 1955: operated as part of Broulan Reef Mines Ltd. with development of additional underground workings. 1983: Newmont Mines Ltd. - diamond drilling, assays, lithogeochem analysis.2002: Porcupine Joint Venture - Drilling on patent to south of Bonwhit Mine


Assessment Work on File

Assessment Work on File
Office File Number Online Assessment File Identifier Online Assessment File Directory
T-5028 / 2.28452 42A11SE2034 42A11SE2034

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Geological Age: Archean  



Lithology

Lithology Data
Rock Type Rank Composition Texture Relationship
Mafic lava flow-unsubdivided 1 Basalt Adjacent
Felsic lava flow-unsubdivided 2 Rhyolite Adjacent
Vein 3 Quartz Contains
Sandy Conglomerate 4 Greywacke, Conglomerate Adjacent

Mineralization

Mineralization and Alteration
Rank Mineral Name Class Economic Mineral Type Alteration Mineral Type Alteration Ranking Alteration Intensity Alteration Style
2PyrrhotiteEconomicOre
1PyriteEconomicGangue
3ArsenopyriteEconomicGangue

Mineralization Comments

Jan 09, 2015 (D Draper) - Results of Newmont drilling: Hole NM-83-1, bearing due south, collared approx. 315m NW of Bonwhit shaft location, returned 3086 ppb Au over 1ft from quartz veining in silicified andesite carrying py, po. (DCL TI1362) Hole NM-83-2, drilled vertical, 100m W of Bonwhit, returned 1159 ppb Au over 5ft of the uppermost unit encountered by the hole, an amygdaloidal basalt with qtz-veining and carrying py, po, asp. (DCL TI1363) Hole NM-83-3, collared 270m N of Bonwhit and drilled south intersected a graphitic argillite cut by qtz-calcite and calcite veining with py, po. This unit assayed 2577 ppb Au over 4ft. (DCL TI1364) Results of Porcupine Joint Venture drilling: Four of 11 holes drilled south of Bonwhit in 2002 returned gold values. The predominant lithologies intersected by these holes were mafic volcanics and metasediments cut by quartz veining. Hole 18682, collared 140m SSW of shaft, assayed greater than 0.015 oz/t Au in 10 samples, the highest being 0.271 oz/t Au over 3.5ft. Hole 18686, collared 230m SW of shaft and 90m grid west of 18682, assayed 0.047 oz/t Au over 1ft. Hole 18689, collared 350m SW of shaft, assayed 0.032 oz/t Au over 1.5ft from qtz vein in unit of conglomerate. Hole 18691, collared 460m SW of shaft, assayed 0.019 oz/t Au over 5ft in greywacke. .



Mineral Record Details

Classification
RankClassification            
1 Lode (Gold)
Characteristics
Rank Characteristic            
1 Vein
Reserves or Resources Data
Zone Year Category Tonnes Reference Comments Commodities
Bonwhit Area 1955 Unclassified 314279 ARV65-2, p.11 Gold 0.42 Ounce per Ton
Bonwhit Mine 1954 Unclassified 69427 ARV64-2, p.10 Gold 0.53 Ounce per Ton
Bonwhit Mine 1953 Unclassified 135170 ARV63-2, p.11 Gold 0.59 Ounce per Ton
Bonwhit Mine 1952 Unclassified 133148 ARV62-2, p.9 Gold 0.62 Ounce per Ton
Bonwhit Mine 1951 Unclassified 80122 ARV61-2, p.9 Gold 0.48 Ounce per Ton
Production Data
Year Tonnes Commodities Reference Comment
1955 135610 Gold 591353 Grams
ARV65-2, p. 11 20,859 oz Au from 61,716 tons milled
1954 55988 Gold 591353 Grams
ARV64-2, p. 10 20,859.503 oz Au from 61,716 tons
1953 57844 Gold 539104 Grams
ARV63 -2, p. 11 19,016.538 oz Au from 63,762 tons
1952 60789 Gold 712124 Grams
ARV62-2 p. 9 25,119.007 OZ AU FROM 67,009 TONS MILLED
1951 7319 Gold 83462 Grams
ARV61-2, p. 6-9 2944.359 OZ AU, FROM 8068 TONS

References

File - Resident Geologist files T-0189, T-2918

Publication Number: Date:

Author:

Publisher Name:

Location: Timmins RGP office


Map - Whitney Township, northwest quarter

Publication Number: P0009 Scale: 1:6,000    Date: 1997

Author: Ferguson S.A.

Publisher Name: Ontario Dept. of Mines

Location:


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:


Part - Mining operations in 1951

Publication Number: ARV61-02 Page: 6-8  Date: 1997

Author: Reade M.

Publisher Name: Ontario Dept. of Mines

Location:


Map - Structural geology, Whitney Township

Publication Number: P3172 Scale: 1:10,000    Date: 1991

Author: Piroshco D.W., Kettles K.

Publisher Name: Ontario Geological Survey

Location:


Part - Mining operations in 1952

Publication Number: ARV62-02 Page: 7-9  Date: 1997

Author: Field D.J.

Publisher Name: Ontario Dept. of Mines

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:


Part - Mining operations in 1953

Publication Number: ARV63-02 Page: 9-11  Date: 1997

Author: Field D.J.

Publisher Name: Ontario Dept. of Mines

Location:


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:


Part - Mining operations in 1954

Publication Number: ARV64-02 Page: 8-11  Date: 1997

Author: Field D.J.

Publisher Name: Ontario Dept. of Mines

Location:


Part - Statistical review of the mineral industry of 1955

Publication Number: ARV65-01.001 Page: 10-11  Date: 1997

Author: Arnoldi M.G.

Publisher Name: Ontario Dept. of Mines

Location:


Mono - Gold deposits of Ontario, part 1, districts of Algoma, Cochrane, Kenora, Rainy River, and Thunder Bay

Publication Number: MDC013 Page: 113-114  Date: 1971

Author: Ferguson S.A., Groen H.A., Haynes R.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

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: 215  Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

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


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