Ontario Geological Survey
Permanent Link to this Record:
MDI42A11SE00019
| Record Name(s) | Upper Hallnor Deposit - 2005, Pamour No. 2 Mine - 1970, Hallnor Mine - 1938 |
|---|---|
| Related Record Type | Compound |
| Related Record(s) | |
| Record Status | Past Producing Mine With Reserves or Resources |
| Date Created | 1983-Sep-29 |
| Date Last Modified | 2023-Jan-06 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Secondary Commodities: Silver, Zinc
Township or Area: Whitney
Latitude: 48° 31' 8.62" Longitude: -81° 8' 32.23"
UTM Zone: 17 Easting: 489493 Northing: 5374004 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A11SE
Point Location Description: shaft
Location Method: AMIS Site Visit
Access Description: There is good access to the Whitney Property. The central portion of the Property can be reached by travelling north on Florence Street, a few kilometres from Highway 101 in Porcupine. Florence Street turns into a gravel road just past the residential area. This road passes through the centre of the claim block and leads to the Bell Creek Mine and mill located a few kilometres to the north. Secondary gravel side roads provide access to other portions of the property. Access to the eastern portion of the property containing the Bonetal and Hallnor Mines on the east side of the Porcupine River is via Highway 101 by travelling north on Hallnor Road, a main access road that leads to the Pamour and Hoyle Mine sites.
1936: Porcupine Quartet Gold Syndicate - ground geophysics. 1934-36: Noranda Mines Ltd. - surface work and 5553 ft surface diamond drilling. 1936-71: Hallnor Mines Ltd. - production and underground development work. 1971: production absorbed into Pamour production. 1975-1981: Pamourex - surface exploration. 1995-2002: Kinross Gold Corporation -property acquisition, ground geophysics, DD-40-6253 m. 2002-2003: Porcupine Joint Venture - compilation, DD-25-12,971 m, GC.2005-2014: Temex Resources Inc. - DD-416-88,462 m, resource calculation, metallurgical testing.
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Neoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Basalt | Pillowed, Massive | Adjacent |
|---|---|---|---|---|
| Vein | 2 | Quartz-Carbonate | Contains | |
| Claystone | 3 | Argillite | Adjacent |
Nov 01, 2012 (A Wilson) - The Hallnor orebodies occur within 400 ft of the contact between mafic metavolcanics and metsediments and are found in both rock types. In the area of the property, the Timiskaming assemblage sediments are subdivided into two formations referred to as the Dome and Three Nations Lake formations. The Dome formation is the oldest the two and occurs on the south side of the Timiskaming unconformity. The Dome formation consists of a basal conglomerate known as the Pamour conglomerate which is overlain by turbiditic sandstones, greywackes and mudstones. The Pamour conglomerate is an important host rock for gold mineralization on the Whitney and adjacent properties. The younger and overlying Three Nations Lake formation is more mature, well-sorted sandstones, arkose, conglomerate and pebbly sandstone, and pebble conglomerate beds. Both formations are overturned, dip steeply to the north and have a fining upwards sequence to the south. The Broulan conglomerate forms the basal contact unit of the Three Nations Lake Formation and is a marker horizon. It lies approximately 200 metres south of the Pamour conglomerate within the Hallnor Mine area. The older Tisdale assemblage volcanics are located in the northern part of the property and consist of an overturned, moderate to steep-north dipping, southeast to east-striking sequence of komatiitic volcanics, massive, pillowed and spherulitic iron tholeiites, and minor interflow sediments. The Tisdale volcanics on the Whitney Property have been further divided into three formations referred to as the Hershey Lake Formation in the north, Central, and Vipond Formations further to the south. Several prominent marker horizons occur within the Tisdale assemblage. These are the variolitic hyaloclastite (“chicken feed”) “95 flow” within the lower Central formation located within the northern part of the property, and the “99 flow” which occurs as thick, massive, and coarser grained mafic flows in the lower Vipond formation, found in the south-west part of the property.
| 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 | Pyrrhotite | Economic | Gangue | ||||
| 3 | Sphalerite | Economic | Gangue | ||||
| Carbonate | Alteration | Calcitization | 1 | Strong | Replacement | ||
| Silica | Alteration | Silicification | 2 | Strong | Replacement | ||
| Sericite | Alteration | Sericitization | 3 | Medium | Replacement |
Nov 01, 2012 (A Wilson) - It was observed by Bell that in the upper workings that the vein contains more calcite than quartz and the charateristic ore minerals are coarse pyrite, sphalerite and visible gold. In the lower workings, fine pyrite and pyrrhotite are the predominant accompanying minerals. Gold occurs in native form associated with quartz veins and as minute gold inclusions in sulphide minerals. Veins vary from millimeters to several centimeters in thickness and are associated with sulphides including pyrite, pyrrhotite, and arsensopyrite. Sulphides occur in both the veins and altered wall rocks. High grade quartz-tourmaline (TN-type) veins occur in the wacke units and contain carbonate, tourmaline and sulphides. The presence of arsenopyrite is indicative of higher gold grades and chalcopyrite and sphalerite are indicative of very good grades. Ribbon veins occur in the metavolcanic rocks and are well-developed veins consisting of quartz carbonate, with minor tourmaline, calcite, chlorite, sphalerite, pyrite and chalcopyrite. Gold in these veins is erratically distributed with high-grade coarse gold. The TN-type veins at the Upper Hallnor, as well as the deep Hallnor volcanic veins, have been the most productive veins on the Whitney property to date, yielding mined gold grades in the 0.3 to 0.4 oz/ton range. Spectacular coarse gold mineralization has also been reported within the Pamour mine metavolcanic-hosted vein systems to the east. There was a strong nugget effect within the various vein systems, and studies carried out by Royal Oak Mines Inc. on the 19, 15 and 11 Veins within the Lower Hallnor have shown that as low as 30% of drill intersections on some of these mined out veins yielded economic intersections. In addition, within these three vein systems, there was an “improvement factor” of 1.6 times the drill indicated grades when mined. Vein systems generally have a moderate to shallow southeast plunge, however, the fold noses of the hook veins appear to plunge moderately to the west. The north dipping metavolcanic-hosted veins and south dipping TN veins may be part of a conjugate vein set and the veins occur as a stacked set of inverted “V” structures related to a system of conjugate fractures. The repetition of plunging vein zones at depth at Hallnor shows a periodicity which increases the probability of finding similar vein systems above and below the 11 and 19 Veins previously identified. The size, shape and whether mineralized zones even formed along these repeating structures was most likely dictated by a combination of the hardness and the geochemistry of the host rocks.
| Rank | Classification |
|---|---|
| 2 | Lode (Gold) |
| 1 | Mesothermal |
| Rank | Characteristic |
|---|---|
| 1 | Vein |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Upper Whitney Resource | 2013 | Indicated Mineral Resource | 2253000 | press release 14/01/2014 | 490,500 ounces | Gold 6.77 Grams per Tonne |
| Upper Whitney Resource | 2013 | Inferred Mineral Resource | 995000 | press release 14/01/2014 | 170,700 ounces | Gold 5.34 Grams per Tonne |
| Upper Whitney Resource | 2013 | Measured Mineral Resource | 966000 | press release 14/01/2014 | 218,100 ounces The Upper Whitney resource includes an update of the Upper Hallnor as well as initial estimates on the former producing Bonetal, Broulan Reef Mines and the C Zone located between them. | Gold 7.02 Grams per Tonne |
| Upper Hallnor Deposit | 2012 | Indicated Mineral Resource | 8758000 | NI 43-101 rpt, p. 4 | 555,900 ounces | Gold 1.97 Grams per Tonne |
| Upper Hallnor Deposit | 2012 | Inferred Mineral Resource | 4115000 | NI 43-101 rpt, p. 4 | 241,000 ounces | Gold 1.82 Grams per Tonne |
| Upper Hallnor Deposit | 2012 | Measured Mineral Resource | 2982000 | NI 43-101 rpt, p. 4 | 234,300 ounces | Gold 2.44 Grams per Tonne |
| Year | Tonnes | Commodities | Reference | Comment |
|---|---|---|---|---|
| 1970 | 4415246 |
Silver 3180615 Grams Gold 44339825 Grams |
ARV80 p.13 | June 1938-December 1970 1,564,015 oz Au, 112191 oz Ag from 4,013,860 tons |
Book - Structural Geology of Canadian Ore Deposits; Jubilee Symposium Volume 1
Publication Number: CIM Page: 547-553 Date: 1948
Author: Bell, A.M.
Publisher Name: Canadian Institute of Mining and Metallurgy
Location: Timmins RGO
File - Resident Geologist file T-0262
Publication Number: Date:
Author:
Publisher Name:
Location: Timmins RGP office
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:
Book - Canadian Mines Handbook 1939
Publication Number: CMH 1939 Page: 113-114 Date: 1939
Author:
Publisher Name:
Location: Timmins RGO
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:
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:
Publication - Canadian Mining Journal, V 82 No 12, p. 35-40
Publication Number: Date: 1961
Author:
Publisher Name:
Location: Timmins RGO
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: 263 Date: 1985
Author: Rose, D.G.
Publisher Name: Geological Survey of Canada
Location: https://doi.org/10.4095/129999
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:
Publication - Northern Miner80-03-06, Hallnor
Publication Number: NMINER Date: 1980
Author:
Publisher Name: Northern Miner
Location: Timmins RGO
Publication - Northern Miner 84-03-29, Pamour
Publication Number: NMINER Date: 1984
Author:
Publisher Name: Northern Miner
Location: Timmins RGO
Part - Mines of Ontario in 1936
Publication Number: ARV46-01.003 Page: 141 Date: 1997
Author: Sinclair D.G., Tower W.O., Bayne A.S., Cooper D.F., Weir E.B., Webster A.R.
Publisher Name: Ontario Dept. of Mines
Location:
Mono - Annual report on mining operations in Ontario during calendar year 1968
Publication Number: ARV78 Page: 14-16 Date: 1998
Author: Riddell G.S.
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: 115-116 Date: 1971
Author: Ferguson S.A., Groen H.A., Haynes R.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Mono - Annual report on mineral industry operations in Ontario during calendar year 1970
Publication Number: ARV80 Page: 11-15 Date: 1998
Author: Matten E.E.
Publisher Name: Ontario Dept. of Mines and Northern Affairs
Location:
Publication - Technical Report and resource estimate on the Upper Hallnor Deposit, Whitney gold property, 136p
Publication Number: 2012 NI 43-101 Date: 2012
Author: R. Sutcliffe, E. Puritch, D. Burga, Y. Wu, T. Armstrong and A. Yassa
Publisher Name:
Location: Timmins RGO
Publication - Technical Report and Resource Estimate on the Upper Hallnor, C-Zone, and Broulan Reef Deposits, Whitney Gold Property, 189p
Publication Number: 2014 NI 43-101 Date: 2014
Author: E. Puritch, R. Sutcliffe, D. Burga, Y. Wu, T. Armstrong, A. Yassa and A. H
Publisher Name:
Location: Timmins RGO
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