Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42B01NE00026

Record: MDI42B01NE00026

General

Commodities

Primary Commodities: Iron

Location

Township or Area: Penhorwood

Latitude: 48° 9' 18.89"    Longitude: -82° 10' 28.98"

UTM Zone: 17    Easting: 412635.27   Northing: 5334222.65    UTM Datum: NAD83

Resident Geologist District: Timmins

NTS Grid: 42B01NE

Point Location Description: The point located is next to the abandoned radio shack and Trench #6 on Milne's Map.N.B. Miner

Location Method: Field Visit with GPS

Access Description: The prospect is located some 75km west-southwest of Timmins and easy access is possible via Highway 101 to the Kukatush turn-off. From this turn-off the main haul road goes southwest to the Kukatush station on the CNR. Just before the station there is a turn off on the right to the exploration camp site marked by an old sign. In the camp which is now privately owned by John MacDougal, there is some drill core. The deposit is located on the low, broad hill located north of the camp site.

Exploration History

1903 The first reports on the iron occurrence are by W. Miller who documented the iron prospecting carried out by Mr O. Telgmann. 1957 Canadian Johns Manville Company carried out a ground magnetometer survey combined with a geological mapping program which delineated the folds in the iron formation. Dempster Exploration Ltd. – Mag. 1958 Kukatush Mining Corporation restaked the claims formally held by Canadian Johns Manville and started a surface sampling program. In the following year the program was significantly expanded and consisted of a) diamond drilling (16,140m in 64 holes), b) ground magnetic surveys, c) trenching (1,220m in 10 trenches), and bulk sampling (42 tonnes). In 1960 metallurgical work and bench testing was carried out on the sample and a 2,720 ton sample was stock piled. In 1961 additional bulk samples were tested, a 63 tonne composite sample from the stock pile, and a 45 tonne sample from one trench. This was combined with additional composite samples from the trenches and drill core and all the work was summarized in a feasibility study for establishing a mine and pellet plant. From this work it was recommended that a pilot plant be established to process the bulk sample. 1963 Kukatush Mining Corporation (Ontario) resumed exploration drilling with 1,810m of fill-in drilling combined with autogenous grinding tests on a 145 tonne sample and a 27 tonne sample. In addition site engineering studies were started. In 1964 sixty two additional shallow holes were drilled (1,010m) and a final feasibility report was submitted in 1965. 1988 Glen Auden Resources re-examined the area in a gold exploration program which initially consisted of a magnetic and electromagnetic airborne survey. 1989 American Barrick optioned the property and geologically mapped a large claim block. This was followed up with some widely spaced drill holes (1,370m in 8 holes) designed to test for gold mineralization. 1994 Noranda Exploration Company, Ltd. – DD – 12 – 4095m, Assays, GC, GL, IP, Samp. 2008 Golden Chalice Resources Inc. – AEM, AMag, DD, GL, Str, Tr. 2010 Rogue Resources Inc. – DD – 1 – 446m, Pet. 2011 Rogue Resources Inc. – DD – 7 – 1395m. Rogue Iron Ore Corp. – Assays, DD – 22 – 2596m. 2012 Rogue Iron Ore Corp. – Assays, DD – 18 – 9405m.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Swayze

Tectonic Assemblage: Muskego-Reeves

Geological Age: Neoarchean  

Metamorphism Type: Regional

Metamorphism Grade: Greenschist

Geology Comments

Dec 07, 2005 (S Fumerton) - The deposit is located on the north limb of a regional fold and the mapped distribution also defines a flattened 'S' shaped minor fold on the limb of the regional fold. These folds plunge to the northwest and have been overturned to the south. The MacKeith Fault or Keith - Penhorwood Fault Zone adjacent to the deposit is thought to correlate with the Destor Porcupine fault in Timmins. Splays related to this fault also cut the deposit. Another set of faults orientated north - south also cut the deposit and have resulted in small off-sets. In outcrop there are numerous tight folds which have not been traced because of the sparse outcrops. These folds like the common breccia may in part be contemporaneous with sedimentation.

Lithology

Lithology Comments

Dec 07, 2005 (S Fumerton) - The Radio Hill deposit is hosted in a banded iron formation sequence that caps a series calc-alkaline intermediate to felsic metavolcanics. In turn the iron formations are overlain by a komatiitic metavolcanic sequence. All three units are folded with the deposit located on the north limb of the fold with the fold nose located to the southeast. Immediately north of the deposit is a major fault zone termed the MacKeith fault or Keith - Penhorwood Fault Zone. This fault is slightly oblique to the stratigraphy, truncates the iron formations, and has locally placed metasediments with some metavolcanics in contact with the deposit. Adjacent to the deposit the metavolcanics are altered. To the south the calc-alkaline rocks have been sericitized and are associated with thin lenses of graphitic and pyritic slates. To the north the komatiites have been altered to carbonate and talc. The banded iron formations consist of oxide, carbonate, silicate, and sulphide facies.

Dec 07, 2005 (A Wilson) - The iron formation is overlain by komatiite flows to the north and underlain by thickly bedded wackes. Two seams of iron formation separated by felsic metavolcanic rocks have been mapped on the west side of Penhorwood township, but only one seam appears to continue westward into Keith Township. East of Leadbeater Lake, the two units coalesce and thicken to form a single zone about 200m thick. East of this, in the Radio Hill area, the iron formation is folded into an isoclinal S-shaped fold about 500 m thick. The unit consists of magnetite, siderite, sulphide, silicate, hematite and graphite iron formation interbedded with chert.

Mineralization

Mineralization Comments

Dec 07, 2005 (S Fumerton) - Six terms were used to describe the Algoma type banded iron formation:- Type E, Type F, Type L, Type H, Type G, and Type C. The differences in some of these types are hard to recognize in outcrop. Type E: This type consists of alternating bands of magnetite and chert. The magnetite bands are typically up to 10cm thick and the magnetite has a characteristic brilliant lustre. The chert bands are thinly bedded and contain disseminated grains of magnetite. Jasper bands are also common within this type which dominates the lower section of the whole banded iron formation. Type F: Thin bands (2cm) of earthy, fine grained, disseminated magnetite alternating with bands of minnesotaite, chert, and minor siderite. Type L: Similar to Type F but with a lower magnetite content. Type H: Banded siderite, chert, and minnesotaite. Adjacent to the komatiites on the north contact this type also contains breunnerite an iron magnesium carbonate. Other minerals in this type include sphalerite, pyrite, pyrrhotite. Type G: Banded pyrrhotite, magnetite, chert, and chlorite. Pyrrhotite occurs in seams within the magnetite bands where as pyrite occurs in veins and lenses within the chert. This type is not reported to be common but in the trenches green chert bands with disseminated sulphides occur. Type C: Alternating bands of graphitic shale and chert.

Aug 03, 2012 (P Bousquet) - Rogue Iron Ore Corp. has completed a 10 447 metres drilling program at the current time (August 2012) on Radio Hill. The best intersection during their program was 482 metres at a grade of 39.9% Fe in hole RH-12-31 (Rogue Iron Ore Corp. press release August 2, 2012).

Assay Samples

Mineral Record Details

Mineral Zones - Size and Shape

Rank: 10       Structure Type: Fold

Rank: 5       Structure Type: Shear

Site Visit Information

Date: May 28, 1986

Geologist: J Ireland

Notes: Four days were spent on site, May 8th, 27th, 28th, and 29th. All lease and Patents and chattels are now technically the property of the Province of Ontario. Numerous maps and considerable core were retrieved or identified. The majority of the material is of historical significance with some dating back to 1947. Cataloguing of the retrieved material is now under way. The writer accompanied by Lorne Luhta, Resident Geologist, and Chris Hamblin visited the Kukatush Mining Corp. / Radio Hill Mines camp in Penhorwood Township. With permission of Mr. John McLeod, who resides at the camp and who was custodian for Kukatush Mining from 1967 to 1981, we retrieved approximately 45 rolls of maps, diagrams and assay sheets pertaining to properties in Keith, Penhorwood and Kenogaming Townships. Several hundred boxes of core dating back to 1947 are also stored at the camp. The writer plans to identify and recover as much of the core as is possible. Over 20 complete holes have been identified and located on the ground to date and another 20 holes have been partially identified and located. Logs are available for some of the holes. During this initial visit, diamond drill core representing 7 complete holes drilled in 1962 and 1966 in Keith Township and 1 complete hole from the Bromley (Dunlop) property in Penhorwood Twp drilled in 1967 were collected and moved to the Timmins core library. [ PRECIS ]

Date: Jun 22, 1992

Geologist: S Fumerton

Notes: The property was visited in company with Marc Leroux of the MNDM. The trenches are nearly completely overgrown. In most places visited these trenches are more like swaths where a metre of overburden was remove, probably by a bulldozer. The noted exception was trench #2 which was done by hand. Within these trenches, shallow pits have been blasted for distances up to 5m along the trench in the richer magnetite horizons presumably for the bulk sample material.

Date: Jun 11, 2014

Geologist: P Bousquet

Notes: One trench was visited. The trench was not overgrown as cited in prior visits. The trench, closest to the Kukatush Road, had these dimensions: 100 m long, 5 m wide and 3 m deep. The faces showed subvertical beds of iron formation of 3 to 40 cm in thickness.

References

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: 33  Date: 1985

Author: Rose, D.G.

Publisher Name: Geological Survey of Canada

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

File - Resident Geologist files T-0117, T-3233 (OM87-5I-82), T-4286, T-5399, T-6358

Publication Number: Date:

Author:

Publisher Name:

Location: Timmins RGP office

Map - Penhorwood and Kenogaming townships, Sudbury District

Publication Number: M2231 Scale: 1:31,680    Date: 1972

Author: Milne V.G.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

File - Resident Geologist files 1980, air photos

Publication Number: Date: 1996

Author:

Publisher Name:

Location:

Map - Precambrian Geology, Northern Swayze Greenstone Belt

Publication Number: M2627 Scale: 1:50,000    Date: 1995

Author: Ayer J.A.

Publisher Name: Ontario Geological Survey

Location:

Map - Parts of Keith and Muskego townships, District of Sudbury, Ontario

Publication Number: M1950-04 Date: 1997

Author: Prest V.K., Hogg N.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Geological series, Operation Chapleau, Horwood Lake sheet, districts of Algoma, Cochrane, and Sudbury

Publication Number: P0673 Scale: 1:126,720    Date: 1997

Author: Thurston P.C., Siragusa G.M., Sage R.P.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

Map - Patricia Showing-Hoodoo Prospect, Minor Element Data

Publication Number: OFM0215 Scale: 1:250    Date: 1993

Author: Siragusa G.M.

Publisher Name: Ontario Geological Survey

Location:

Part - Geology of the Horwood Lake area

Publication Number: ARV46-02 Date: 1997

Author: Harding W.D.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Geology of the Keith-Muskego townships area

Publication Number: ARV59-07 Date: 1997

Author: Prest V.K.

Publisher Name: Ontario Dept. of Mines

Location:

Part - Iron ranges of northern Ontario

Publication Number: ARV12.013 Page: 315  Date: 1998

Author: Miller W.G.

Publisher Name: Ontario Bureau of Mines

Location:

Part - Groundhog River area

Publication Number: ARV33-06.001 Date: 1998

Author: Todd E.W.

Publisher Name: Ontario Dept. of Mines

Location:

MonoMap - Geology of the Kukatush-Sewell Lake area, District of Sudbury

Publication Number: R097 Page: 92-102  Date: 1972

Author: Milne V.G.

Publisher Name: Ontario Division of Mines

Location:

MonoMap - Geology of the Chapleau area, districts of Algoma, Sudbury, and Cochrane

Publication Number: R157 Page: 252  Date: 1977

Author: Thurston P.C., Siragusa G.M., Sage R.P.

Publisher Name: Ontario Division of Mines

Location:

Mono - Iron deposits of Ontario

Publication Number: MDC011 Page: 356  Date: 1968

Author: Shklanka R.

Publisher Name: Ontario Dept. of Mines

Location:

MonoMap - Precambrian Geology, Northern Swayze Greenstone Belt

Publication Number: R297 Page: 53  Date: 1995

Author: Ayer J.A.

Publisher Name: Ontario Geological Survey

Location:

Publication - Technical Report on the Radio Hill Iron Property Timmins Area Ontario, Canada, 75p.

Publication Number: NI 43-101 Date: 2010

Author: S.J. Shoemaker, R. Johnson, R. Mariani

Publisher Name:

Location: Timmins RGO

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: 533-535  Date: 1995

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

Publisher Name: Ontario Geological Survey

Location:

Folio - Keith Township - unpublished GDIF

Publication Number: GDIF Date: 1993

Author: Resident Geologist Staff

Publisher Name: Ontario Geological Survey

Location: Timmins RGP

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