Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI42D14SE00066

Record: MDI42D14SE00066

General

Commodities

Primary Commodities: Copper, Gold, Silver

Secondary Commodities: Molybdenum

Location

Township or Area: Priske

Latitude: 48° 46' 33.27"    Longitude: -87° 14' 55.63"

UTM Zone: 16    Easting: 481721.66   Northing: 5402574.74    UTM Datum: NAD83

Resident Geologist District: Thunder Bay South

NTS Grid: 42D14SE, 42D15SW

Point Location Description: Trenches, pits, stripped areas.

Location Method: Conversion from MDI

Access Description: The occurrence is located in Priske Township approximately 3.6 km south southeast of Schreiber and 1.2 km north of Worthington Bay on Lake Superior (claim TB 662783, claim map G 631, Priske Township. Access may be gained using the old Schreiber dump road which branches off Highway 17 at a point 4.4 km east of Schreiber. The Worthington Bay road extends south and west for approximately 2 km, where past the second creek a skidder trail leads to the south. This trail leads south for approximately 1.2 km to the Univex showings on the roadside about 0.5 km south of the McKenzie occurrence. The Shovel Hill occurrence is located on the south side of Worthington Creek approximately 250 m northeast of the Univex West occurrence. The Porphyry Hill occurrence is located approximately 75 m south of the Univex West occurrence along a skidder trail which leads 0.5 km south to the Baker vein.

Exploration History

1922-1965: Intermittently staked by various individuals; minimal, unspecified work recorded. 1965: Staked by R.W. Pitkanen who carried out limited manual work (TB 120222). 1968: Restaked by Pitkanen; all interest was transferred to M. Freed (Univex Exploration and Development Corporation Limited). 1969: Claim lapsed and was again restaked by Pitkanen who transferred interest to Univex. circa 1970: Pitting and sampling was undertaken. 1974: Claim(s) lapsed. 1982: Korba transferred 50% interest to Livingston Energy Corporation and 50% interest to United Continental Energy Corporation. A combined airborne geophysical (EM, VLF EM, magnetometer) survey was conducted by Aerodat Ltd. 1983: Walter Baker conducted a prospecting prospecting program for United Continental Energy Corporation. The Baker Vein was discovered to the south of the original Univex claims. 1983-1984: H.D. McLeod conducted field investigations and a geological compilation. 1990: J. Courtney and G. Daniels conducted prospecting, stripping and sampling in the Univex and Baker properties. The Shovel occurrence and Creek Zones were discovered. 1994-1995: J. Courtney and G. Daniels conducted stripping, trenching and sampling on the Univex showing, Porphyry Hill and Porphyry Ridge. 1996: J. Courtney and G. Daniels conducted stripping, blasting, and sampling. 2001: S. Kravchik and G. Daniels conducted prospecting, stripping, and sampling. 2004: S. Kravchik contracted Mashkeego Staking to conduct prospecting and sampling. 2005: S. Kravchik contracted G. Daniels to conduct prospecting and sampling. 2010: O. Kravchik contracted Fladgate Exploration to conduct prospecting, sampling, and soil sampling.

Assessment Work on File

Geology

Province: Superior

Subprovince: Wawa

Terrane: Wawa-Abitibi

Belt: Schreiber-Hemlo

Geological Age: Archean  

Geology Comments

Dec 07, 2005 (B Nelson) - Mineralization occurs in (hornblende) granite tonalite, proximal to syenite diorite, usually in association with minor quartz veining.The Univex West occurrence consists of a series (6 8 veins) of widely spaced 1 cm to 15 cm wide quartz stringers, veinlets and veins which occupy tension fractures in granitic rocks. The original Univex veins have been exposed over an area 40 m in strike length and 50 m in width, and the veins strike east west. A complex relationship between various felsic intrusives exists. Grey granodiorite is crosscut by fine-grained aplite and feldspar porphyry dykes. Overburden stripping has revealed sulphide mineralized, locally auriferous, granitoid host rocks and quartz carbonate veins. Nearby at the 'Creek Zone', xenolith rich, medium grained granodiorite is crosscut by small aplite and feldspar dykes. A conjugate set of fractures was observed at the Shovel Hill occurrence. In addition a right lateral or dextral displacement was observed on several of the quartz veins. Twenty metres south of the Univex West occurrence the South Univex occurrence was discovered. This 6 cm wide quartz vein occupies a narrow shear zone. The narrow vein is exposed for 3 m. The Porphyry Hill occurrence located approximately 75 m south of the Univex West occurrence consists of a grey quartz porphyry unit. The porphyry is crosscut by a number of narrow, less than 1 cm wide quartz veins which contain chalcopyrite. Three distinct fracture directions were observed striking 14 degrees, 70 degrees and 150 degrees.

Lithology

Lithology Comments

Dec 07, 2005 (B Nelson) - Grey granodiorite is crosscut by fine grained aplite and feldspar porphyry dikes. A white to grey quartz porphyry is present at both the Shovel Hill and Univex occurrences. The quartz porphyry and feldspar porphyry dikes display a green saussuritization. A hornblende phyric, white to pink, fine grained syenite is also present throughout the area. At the 'Creek Zone', xenolith rich, medium grained granodiorite is crosscut by small aplite and feldspar porphyry dikes. Compositional and textural variation is common on a small scale. It is locally quartz or feldspar phyric and may contain up to 1 percent disseminated pyrite; plagioclase is noticeably saussuritized. Fractures and joints have narrow envelopes of potassic feldspar (+hematite?) alteration. Chalcopyrite and pyrite occur in quartz filled fractures.

Mineralization

Mineralization Comments

Dec 07, 2005 (B Nelson) - At the 'Shovel Hill' occurrence, grey to pink weathering, medium grained quartz porphyry contains fine grained disseminated pyrite and minor chalcopyrite. These sulphides may be concentrated along fracture surfaces and in small, quartz filled veinlets. Frost wedged blocks of a composite quartz carbonate vein are also mineralized with discontinuous aggregates of chalcopyrite (+malachite) and pyrite which occur in banded, white quartz, parallel to the vein margins. Sparry calcite locally occupies the outer margins of this 10 to 15 cm wide vein. A sample of quartz porphyry collected by J. Courtney from the Porphyry Hill Occurrence is reported to have assayed 0.22 ounce per ton Au (J. Courtney, Prospector, personal communication, 1993). Thirteen samples collected by Schnieders, et al. in 1994 from the Shovel Hill, Univex and Porphyry Hill areas assayed up to 0.08 ounce per ton Au, 3.6 ounces per ton Ag and 1.72% Cu. Nine of the 13 samples assayed 0.02 ounce per ton Au or higher. Seventeen random grab samples collected by McLeod (1984) indicated similar results with 11 samples assaying 0.02 ounce per ton Au or higher. One sample 3782 assayed 0.85 ounce per ton Au and 2.98 ounces per ton Ag (McLeod 1984). (Resident Geologist's Files, Schreiber Hemlo District, Thunder Bay).

Alteration Comments

Dec 07, 2005 (B Nelson) - The quartz porphyry and feldspar porphyry dikes display a green saussuritization. At the 'Creek Zone', plagioclase is noticeably saussuritized. Fractures and joints have narrow envelopes of potassic feldspar (+hematite?) alteration.

Mineral Record Details

Site Visit Information

Date: Feb 19, 1997

Geologist: B Nelson

Notes: Resident Geologist personnel visited the occurrence August 24, 1983; October 25, 1990; July 13, 1994.

References

File - Resident Geologist Mineral Deposit Files

Publication Number: Min Dep Date:

Author:

Publisher Name:

Location: Thunder Bay RGP

Map - Nipigon-Schreiber, geological compilation series, Thunder Bay District

Publication Number: M2232 Scale: 1:253,440    Date: 1973

Author: Carter M.W., McIlwaine W.H., Wisbey P.A.

Publisher Name: Ontario Division of Mines

Location:

Mono - Mineral Occurrences in the Nipigon-Marathon Area, Volumes 1 and 2.

Publication Number: OFR5951 Page: 414-417  Date: 1996

Author: Schnieders B.R., Smyk M.C., Speed A.A., McKay D.B.

Publisher Name: Ontario Geological Survey

Location:

Map - Geological series, Precambrian geology of the Terrace Bay area, west sheet, Thunder Bay District

Publication Number: P2417 Scale: 1:15,840    Date: 1981

Author: Carter M.W.

Publisher Name: Ontario Geological Survey

Location:

Mono - Geology of Schreiber-Terrace Bay area, District of Thunder Bay

Publication Number: OFR5692 Date: 1988

Author: Carter M.W.

Publisher Name: Ontario Geological Survey

Location:

Article - Schreiber-Hemlo Resident Geologist's District - 1990

Publication Number: MP152.007 Page: 154-155  Date: 1997

Author: Schnieders B.R., Smyk M.C., Hinz P.

Publisher Name: Ontario Geological Survey

Location:

Map - Schreiber area, District of Thunder Bay, Ontario

Publication Number: ARM47J Scale: 1:31,680    Date: 1997

Author: Bartley M.W., Harcourt G.A.

Publisher Name: Ontario Dept. of Mines

Location:

Mono - The Terrace Bay batholith and associated mineralization

Publication Number: OFR5514 Date: 1984

Author: Marmont S.

Publisher Name: Ontario Geological Survey

Location:

Report an Error

We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.

Terms of Use

Please review our Terms of Use agreement for this data product.

Ministry Contact Information

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