Ontario Mineral Inventory

Ontario Geological Survey
Permanent Link to this Record: MDI41P10NW00006

Record: MDI41P10NW00006

General

Commodities

Primary Commodities: Gold

Location

Township or Area: Tyrrell

Latitude: 47° 38' 38.51"    Longitude: -80° 59' 54.3"

UTM Zone: 17    Easting: 500119   Northing: 5276737.004    UTM Datum: NAD83

Resident Geologist District: Kirkland Lake

NTS Grid: 41P10NW

Point Location Description: Shaft (Au, Py) in claim GG5841 of property 30 (Map 2365) just N of Breeze Lake

Location Method: Field Visit with GPS

Exploration History

In 1936 Noranda Mines conducted an extensive program of prospecting, geological mapping, trenching, sampling, magnetic and electromagnetic surveys and a diamond-drilling program of 17 holes. An inferred and indicated resource of 72 500 t grading 11.7 g/t gold was calculated to a depth of 107 m. In about 1940, a 20-foot shaft was sunk. In 1983 Duncan Gold Resources diamond drilled 2 holes. In 1984 the company completed a stripping and washing program outlining a breccia pipe, a 59-hole percussion drilling totalling 2098 feet, a 12-hole, 800 foot Winkie diamond-drilling program and a six-hole, 3648-foot BX diamond-drilling program. This program increasedthe resource to 225 000 t grading 6.9 g/t gold to a depth of 229 m. A 1.36 t sample was collected for metallurgical testing in a small pit (Pearson 1985). In 1987 a 8000 ton bulk sample averaged 0.11 ounce per ton gold (Northern Miner, August 1, 1988, p.13). In 2009 and 2010 Creso Exploration completed geophysics, diamond drilling and dewatered the pit.

Assessment Work on File

Geology

Province: Superior

Subprovince: Abitibi

Terrane: Wawa-Abitibi

Belt: Abitibi

Geological Age: Archean  

Geology Comments

Dec 21, 2011 (D Guidon) - The rocks underlying and surrounding the pit area are composed mainly of intermediate to felsic flows and breccias with local basaltic flows. Ore grade zones are related to K2O enrichment and elevated amounts of pyrite. The zone is pipe-like with a diameter of about 20 m (Harron and White 2010). The margins of the pipe may have more rounded clasts, whereas the internal portions are more angular. In 2010, diamond-drill hole MC-09-01 was deepened in 2010 from 269 m to 920 m. A section from 508.5 to 591.4 m averaged 13.3 g/t gold. (Creso Exploration Inc. 2010). The hole was drilled at a steep angle to the southeast. Diamond-drill core from 505.5 m to 617.9 m was examined in September 2010. Units included grey feldspar porphyry (505.5-506.5 m), dark grey mafic volcanic cut by quartz-carbonate veining (506.5-508.5 m), ultramafic breccia (508.5-510.0 m), mafic volcanic breccia healed with quartz-carbonate and disseminated pyrite (510.0-516.5 m), reddish feldspar porphyry (516.5-526.8 m), felsic to intermediate breccia healed with quartzcarbonate and disseminated pyrite (526.8-588.4 m) and red-grey, medium-grained syenodiorite (588.4-617.9 m). Breccia zones contain about 15% quartz-carbonate with 1 to 2 mm disseminated subhedral pyrite and visible gold. Faults cutting the breccia are indicated by a quartz-healed crushed interval. Drilling has indicated an upper and lower zone to the deposit, separated by a mafic dike about 150 m thick. Gold mineralization may be present in veins of diverse orientations hosted in pyritic chlorite breccias.

Lithology

Mineralization

Assay Samples

Mineral Record Details

Mineral Zones - Size and Shape

Site Visit Information

Date: Sep 27, 2010

Geologist: D Guidon

Notes: Property examination September 27, 2010 with Gary Grabowski. Doug Robinson showed us drill core at the Tyranite site and then visited the pit that had been dewatered. The pit was partially filled due to a large rainstorm. Pit visited again September 30 after it was almost pumped out again. Photos: Number Description 731568 Minto - Creso DDH MC-0901 - porphyry - 505.5-506.5 m 731569 Minto - Creso DDH MC-0901 - mafic volcanic - 506.5-508.5 731570 Minto - Creso DDH MC-0901 - U/M bx - 508.5-510 and qtz bx - 510-516.5 - (508.5-591.4 averaged 11.0 g/t Au) 731571 Minto - Creso DDH MC-0901 - qtz bx - 512m - close up of py mineralization 731572 Minto - Creso DDH MC-0901 - feldspar porphry - 516.5-526.75 731573 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m - 527m 731574 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m - 535m 731575 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m 731576 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m - VG 731577 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m - VG - 530 m 731578 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m - VG - 566 m 731579 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m - VG 731580 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m - fault zone 731581 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m - last 2 boxes of bx 731582 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m - last 2 boxes of bx 731583 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m - VG 731584 Minto - Creso DDH MC-0901 - bx - 526.75-589.4m - VG 731585 Minto - Creso DDH MC-0901 - syenodiorite - 588.4-617.87 m 731586 Minto - Creso DDH MC-0901 - syenodiorite - 588.4-617.87 m 731587 Minto - Creso DDH MC-0901 - syenodiorite - 588.4-617.87 m 731588 Minto - outcrop north of pit looking south toward pit 731589 Minto - pit filled with water 731590 Minto - carbed breccia on surface 731591 Minto - carbed breccia on surface 731592 Minto - carbed breccia on surface - abundance of fragments 731593 Minto - contact of intermediate bx (lots of fragments) with mafic bx (fewer fragments) looking east Samples 10332 Minto 1 Tyrrell 17 500133 5276720 not submitted bx w/py - ore 10333 Minto 2 Tyrrell 17 500119 5276737 Au, BM bx w/ 1% py - Au? 10334 Minto 3 Tyrrell 17 500133 5276720 Au, BM porphyry w/ 1% py - Au? 10335 Minto 4 Tyrrell 17 500119 5276737 not submitted channel sample - conglomerate

References

Map - Macmurchy and Tyrrell townships, Sudbury and Timiskaming districts

Publication Number: M2365 Scale: 1:31,680    Date: 1977

Author: Carter M.W.

Publisher Name: Ontario Division of Mines

Location:

Book - Northern Miner 85-01-10, Duncan's, p. 1,2

Publication Number: NMINER Date: 1985

Author:

Publisher Name: Northern Miner

Location:

Part - Tyrrell-Knight area

Publication Number: ARV41-02.002 Page: 52, 54  Date: 1998

Author: Graham A.R.

Publisher Name: Ontario Dept. of Mines

Location:

MonoMap - Geology of Macmurchy and Tyrrell townships, districts of Sudbury and Timiskaming

Publication Number: R152 Page: 41-42  Date: 1977

Author: Carter M.W.

Publisher Name: Ontario Division of Mines

Location:

Mono - Gold deposits of Ontario, part 2, part of District of Cochrane, districts of Muskoka, Nipissing, Parry Sound, Sudbury, Timiskaming, and counties of southern Ontario

Publication Number: MDC018 Page: 184  Date: 1979

Author: Gordon J.B., Lovell H.L., de Grijs J.W., Davie R.F.

Publisher Name: Ontario Geological Survey

Location:

Compend - Report of activities, 1988, Resident Geologists

Publication Number: MP142 Page: 317  Date: 1989

Author: Fenwick K.G., Giblin P.E., Pitts A.E.

Publisher Name: Ontario Geological Survey

Location:

Mono - Report of Activities 2010, Resident Geologist Program, Kirkland Lake Regional Resident Geologist Report: Kirkland Lake District

Publication Number: OFR6265 Date: 2011

Author: Guindon D.L., Grabowski G.P.B., Wilson A.C., Metsaranta D.-A., Greenfield M.J.

Publisher Name:

Location:

Book - Technical report on the Shining Tree project, Tyrrell and Knight townships, Larer Lake Mining Division, Ontario for Creso Exploration Inc.

Publication Number: Date:

Author: Harron, G.A.

Publisher Name: G.A. Harron and Associates Inc.

Location: SEDAR

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For detailed information regarding this mineral record please contact the Kirkland Lake Resident Geologist District Office