Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI000000001304

Record: MDI000000001304

General

Commodities

Primary Commodities: Gold

Location

Township or Area: Klotz Lake Area

Latitude: 49° 45' 49.65"    Longitude: -85° 56' 50.89"

UTM Zone: 16    Easting: 575800   Northing: 5512900    UTM Datum: NAD83

Resident Geologist District: Thunder Bay North

NTS Grid: 42F13SW

Point Location Description: Stripped and exposed area

Location Method: Field Visit with GPS

Access Description: Access to the property is gained by Pagwachuan Lake road which turns south off of Highway 11. Travel time by automobile from Long Lac to the property is 30 minutes.

Exploration History

1979: A. Onsime - mapping, trenching, sampling. 1984: New Arcadia Exploration Ltd. - mapping. 1983-88: Getty Resources Limited / Golden Tiger Mining Exploration Co - airborne geophysics, ground geophysics, DD-27-3068 ft. 1997: Baltic Resources - ground geophysics. 2005: Freewest Resources Canada Inc. - mapping, sampling, assays. 2010: Kodiak Exploration Ltd. - IP survey, sampling, prospecting. 2011: Prodigy Gold: mapping, prospecting, sampling. 2012: Goldstream Exploration Ltd. - DD-2-1219m, IP survey

Assessment Work on File

Geology

Province: Superior

Subprovince: Wabigoon

Terrane: Eastern Wabigoon

Belt: Beardmore-Geraldton

Geological Age: Archean  

Lithology

Lithology Comments

Apr 02, 2014 (A Wilson) - The area contains epiclastic felsic volcanics unconformably overlain by metasediments consisting mostly of mudstone, but variably interbedded with silicified sandstone beds 2 cm to 80 cm thick. The structurally upper-most unit is a biotite-gamet-staurolite-bearing, highly strained metasediment, herein termed garnet schist. These overlie the metasediments by a steep sharp contact which is probably tectonic. Evidence of at least 2 deformational events is interpreted from crenulation lineations found in the Onesime 1 showing. The northern trench area contains the most complexity. A south dipping fault runs through the metasediments creating intense boudinage and folding typical of melange. North of this structure open folds plunge shallowly to the west, while south of this structure, minor folds plunge to the east. The change in plunge may be due to later structural complications from shallow faults to the south or may indicate the east-west structure that bisects this alteration zone is a scissor fault. Regardless of the interpretation, the structural trend is different to the north of this structure as compared to the south. The main showing is characterized by a steeply-dipping fabric. The main showing is characterized by a steeply-dipping fabric that is overprinted by shallow sinuous structures dipping north and south. These shallow planes are non-penetrative but where they do occur are spaced approximately 5-10 cm apart. This fabric occurs exclusively in the intensely altered metasediments exposed in the northern part of the trench and the resulting "apparent doming" may be due to refolding of early gentle open folds or it may be due to pervasive fracturing and chemical weathering in the highly altered zone. The Onesime #1 showing is located along an east-west trending shear zone that dips steeply to the north. The showing consists of thin bands of massive pyrite and pyrrhotite occurring in locally graphitic shales and argillites over a 1400 metre strike length. These showings are coincident with an AEM anomaly outlined in a 1963 survey completed for Ranworth Exploration. The 2012 Adel drilling program identified an anomalous gold bearing sheared structure in granodiorite and porphyry host rocks

Mineralization

Mineralization Comments

Apr 02, 2014 (A Wilson) - The highest assay values (1190 ppb over 2.5 m) occur in the felsic epiclastic unit. From detailed mapping of newly exposed strata from the 2005 trenching by Teck Cominco, the showing occurs within an intensely altered zone approximately 30 m wide. Of the 95 samples taken from this area, more than half the samples had gold values above 100 ppb and of these 27 were over 500 ppb the highest value being 4771 ppb within the silicified epiclastic volcanic unit. Values of greater than 1000 ppb are associated with the hanging wall of a series of low to moderately south-dipping faults within the altered zone. High gold values are also associated with an altered south dipping breccia and steeply to moderately-dipping cross fault that may be associated with the D2 structures, or maybe an earlier structure that has subsequently been deformed by later fault movement. Two, five m quartz veins with abundant blue quartz occur throughout the southern parts of the trench in random orientations suggest they are not controlled by a single structural event. Grab samples collected by A. Onsime in 1979 returned 20.9% total Fe, 51 ppm cu, 9 ppm Au and 29 ppm Zn. Assays from the Golden Tiger drilling returned the following values: 0.14 oz Au/t (4.35 g/t), 0.12 oz Au/t (3.73 g/t), 0.04 oz Au/t (1.24 g/t) over 5 ft sample intervals. The best intersections from the 1986-87 campaign were 0.6 m @ 7.89 g Au/t and 1.55 m @ 4.8 g Au/t. The best gold assay result from channel sampling completed by Prodigy Gold in 2010 was 1.05 g Au/t with 18 samples returning values greater than 0.1 g Au/t. The best assay from the 2012 diamond drilling by Goldstream returned 1.08 g/t Au over 3 m in DDH AD-12-01.

Apr 02, 2014 (Robert Cundari) - Four grab samples, containing less than 1% to 3% arsenopyrite, were collected by RGP staff; all returned less than 0.01 ounce Au per ton. However, more than half of the 95 samples collected by Freewest within this 30m wide altered and mineralized zone returned more than 100 ppb Au; 27 of these sampled returned over 500 ppb Au (Palmer 2005). The highest gold values (1190 ppb Au over 2.5 m) occur at the contact with the felsic metavolcanic rocks to the south. One sample of the silicified metavolcanic unit returned 4771 ppb Au (Palmer 2005). Palmer (2005) also noted elevated gold values (>1000ppb Au) are associated with hanging walls of a series of low-angle to moderately south-dipping faults within the altered zone.

Mineral Record Details

Mineral Zones - Size and Shape

Site Visit Information

Date: Jul 01, 2005

Geologist: M Smyk

Notes: RGP staff property visit. full report in Report on activites, Thunder Bay North, 2005.

References

MonoMap - Geology of the Klob Lake area, District of Thunder Bay

Publication Number: R235 Scale:     Date: 1984

Author: Amukun S.E.

Publisher Name: Ontario Geological Survey

Map - Klob Lake, Thunder Bay District

Publication Number: M2469 Scale: 1:31,680    Date: 1984

Author: Amukun S.E., Gillespie R.T.

Publisher Name: Ontario Geological Survey

Mono - Report of Activities 2005, Resident Geologist Program, Thunder Bay North Regional Resident Geologist Report: Thunder Bay North District

Publication Number: OFR6181 Scale:     Date: 2006

Author: Smyk M.C., White G.D., Magee M.A., Komar C.L.

Publisher Name: Ontario Geological Survey

Publication - A Technical Review of the Hardrock East Gold Project, Ontario, Canada for Goldstream Exploration Ltd, 131p

Publication Number: NI 43-101 rpt Scale:     Date: 2012

Author: T. Matveeva and J. Hinzer

Publisher Name:

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Ministry Contact Information

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