Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI52P09SW00002

Record: MDI52P09SW00002

General

Commodities

Primary Commodities: Gold

Location

Township or Area: Frond Lake Area

Latitude: 51° 36' 43.99"    Longitude: -88° 20' 51.95"

UTM Zone: 16    Easting: 406680   Northing: 5718770.01    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 52P09SW

Point Location Description: Trenches

Location Method: Conversion from MDI

Access Description: Frond Lake is located 145 km north of Lake Nipigon and 104 km east of Pickle Lake. Fort Hope is approx. 20 km east of the property. Accessible by float plane or helicopter from Pickle Lake, Armstrong, or Nakina. A trail south of, and parrallel to, a creek connects Goss and Frond Lake. Trenches & Surface prospects are mainly located on the southern shore of Goss Lake.

Exploration History

1940: J. Goss discovered gold south of Goss Lake in a sulphide-bearing iron formation. 33 ddh - Connell Mining and Exploration Company Ltd. 1943: the Frond Lake Mining Co. was formed in January with the Connell Mining and Exploration Company being the major controllers. 1945-46: 48 ddh, 29 trenches and sampling - Frond Lake Mining Company. 1961: Frond Lake Mining patented the claims. 1971: VLEM, MAG, geol. survey, 4500 m of diamond drilling. - Conwest Exploration Company Ltd. 1979: Frond Lake Mining changed their name to Solo Resources and Energy Inc. 1981: Keezic Resoureces optioned the property. humus geochem., VLF-EM, and MAG - Keezic Resources Ltd. 1982 – Keezic drilled 9 ddh totalling 2405 ft. 1983: Keezic conducted VLF-EM, MAG and drilled 8 ddh totalling 2050 ft. Lacan Mines undertook proton mag, and HLEM. Westmin Resources Ltd. conducted geol. mapping, proton mag, and humus geochem. 1987: ddh (42 DDH totalling 20,301 ft), outcrop sampling, financing by Ayrex Resources Ltd. and Tandem Resources Ltd. Field work and compilations completed by H.E. Neal and Assoc. 2002: Landore Resources entered into an option agreement with Tandem Resources Ltd. and Ayrex Resources Ltd. 2003 - 2006: Landore Resources has carried out an exploration program on properties that cover the area between Miminiska and Goss Lakes. This work includes geological and geophysical compilation, geological mapping, prospecting, diamond drilling (47 DDH totalling 9349 m) and assays.

Assessment Work on File

Geology

Province: Superior

Subprovince: Uchi

Terrane: North Caribou

Domain: Uchi

Belt: Miminiska-Fort Hope

Geological Age: Neoarchean  

Geology Comments

Oct 10, 2006 (Mark Puumala) - The rocks of the Wottam Lake area are dominated by a thick sequence of metasedimentary rocks described by Wallace (1981) as predominantly monotonously intercalated wacke and mudstone. This sedimentary sequence also contains numerous horizons of oxide, carbonate and/or silicate facies iron formation. Some of these iron formation units have considerable thickness (i.e., up to 150 m), with the most notable iron formation being located at the eastern end of Miminiska Lake. This iron formation thins considerably toward the northeast, and several thinner (typically <10 m) iron formation horizons have been mapped to the south (Needham 2005). The metasedimentary sequence conformably overlies a thick, predominantly mafic metavolcanic sequence that is located to the south. A second predominantly mafic metavolcanic rock sequence interpreted by Wallace (1981) to overlie the metasedimentary rocks has also been mapped to the north. A number of large felsic intrusions occur to the north (Cluff Lake Stock, South Bay Stock and Troutfly Lake Batholith) and south (Kawitos Lake Batholith) of these supracrustal sequences. Mapping by Wallace (1981) indicates that sedimentary bedding in the Wottam Lake area typically strikes in an east-northeasterly direction, with moderate to steep northward dip. Further west, in the vicinity of Miminiska Lake, bedding stikes approximately east-west with near-vertical dips. A number of approximately easterly-trending isoclinal folds are interpreted by Wallace (1981) to occur within the metasedimentary sequence. These include a synclinal structure with an axial trace that passes through Wottam and Goss Lakes, and a second syncline with an axial trace that extends from an area north of Miminiska Island toward Seagreen Lake. Needham (2005) has has indicated that strong foliation is present at numerous locations throughout the Wottam Lake area. The foliation is typically parallel to sedimentary bedding, with dips ranging from 50 to 80 degrees to the north. However, it was locally observed to be 10 to 20 degrees oblique to bedding. Notable locations with strong foliations include the northern sedimentary/volcanic contact and an area approximately 200 to 300 m north of Wottam Lake associated with the WSaspy3 (International) occurrence. Outcrop-scale isoclinal folds and localized arsenopyrite mineralization are commonly observed in the strongly foliated sedimentary rocks. A number of major northeast-striking faults paralleling Ferguson Creek have also been mapped in the area by Wallace (1981). Needham (2005) indicates that gold in this area is typically associated with axial planar shear zones mineralized with pyrrhotite, pyrite and arsenopyrite. The host rock is typically strongly foliated/sheared magnetite bearing silicate to oxide iron formation.

Lithology

Mineralization

Mineralization Comments

Oct 10, 2006 (Mark Puumala) - The Goss Lake prospect is hosted within an east-northeast striking metasedimentary rock sequence. Rocks in the immediate vicinity of the deposit have been mapped as mudstone, phyllite, slate, quartz-sericite schist, lithic and arkosic wacke, garnetiferous and non-garnetiferous quartz-feldspar-biotite schist, amphibole-garnet-biotite iron formation, grunerite-hornblende iron formation and banded magnetite-quartz-chert iron formation (Mason and White 1995). Mineralization, consists of pyrrhotite, arsenopyrite and visible gold, and is confined to the iron formation and quartz-filled tension fractures within it. Pyrrhotite occurs in disseminated foliation-parallel layers up to 2 cm wide, while arsenopyrite occurs as megacrysts of up to 1 cm. The sulphide mineralization is interpreted to be related to replacement of iron oxides caused by the introduction of sulphide and gold-bearing hydrothermal fluids. Quartz veins are also reported by Mason and White (1995) to be associated with folded iron formation. The quartz veins are typically oriented parallel to axial planar cleavage and are best developed in proximity to the fold axes. The gold-bearing zones are also indicated by Nedham (2005) to be variably silicified, garnetiferous, with amphibole and chlorite/sericite alteration. It was also noted that geophysical survey data appear to indicate that the gold mineralized horizons are associated with a low magnetic response. Three gold mineralized zones have been identified by Neal (1987), with gold concentrations decreasing with depth. Zone A contained 3 pods, one pod had grades as high as 0.34/6.0 (oz per ton/feet), second pod graded up to 0.64/4.4 and third pod had grade up to 0.48/4.5. Zone B had 4 small pods which results from all samples below the cut-off grade of 0.2 oz/ton over 5.0 ft. Zone C had 3 pods with assay results ranging up to 0.9/12 ft. Needham (2005) reports that Tandem Resources calculated a mineral resource totaling 278,220 tonnes with an average grade of 7.41 g.t Au in 1985.

Mineral Record Details

References

Mono - Mineral Occurrences and Prospects in the Fort Hope-Winisk Area

Publication Number: OFR5926 Date: 1995

Author: Mason J.K., White G.D.

Publisher Name: Ontario Geological Survey

Location:

Part - Geology of the Fort Hope area

Publication Number: ARV51-03.001 Page: 1-28  Date: 1997

Author: Prest V.K.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Fort Hope-Lansdowne House sheet, geological compilation series, Cochrane, Kenora, and Thunder Bay districts

Publication Number: M2237 Scale: 1:253,440    Date: 1972

Author: Thurston P.C., Carter M.W., Riley R.A.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

Map - Wottam Lake, Kenora and Thunder Bay districts

Publication Number: M2417 Scale: 1:31,680    Date: 1979

Author: Wallace H.

Publisher Name: Ontario Geological Survey

Location:

Mono - Operation Fort Hope

Publication Number: MP042 Date: 1970

Author: Thurston P.C., Carter M.W.

Publisher Name: Ontario Dept. of Mines and Northern Affairs

Location:

MonoMap - Geology of the Opikeigan Lake area, District of Kenora (Patricia Portion)

Publication Number: R185 Date: 1978

Author: Wallace H.

Publisher Name: Ontario Geological Survey

Location:

MonoMap - Geology of the Miminiska Lake area, districts of Kenora (Patricia Portion) and Thunder Bay

Publication Number: R214 Date: 1981

Author: Wallace H.

Publisher Name: Ontario Geological Survey

Location:

Map - Fort Hope area, District of Kenora (Patricia Portion), Ontario

Publication Number: ARM51B Scale: 1:63,360    Date: 1997

Author: Prest V.K.

Publisher Name: Ontario Dept. of Mines

Location:

Map - Precambrian Geology of the Miminiska Lake Area, Fort Hope Greenstone Belt

Publication Number: P3764 Scale: 1:50,000    Date: 2012

Author: Buse S.

Publisher Name: Ontario Geological Survey

Location:

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For detailed information regarding this mineral record please contact the Thunder Bay North Resident Geologist District Office