Ontario Geological Survey
Permanent Link to this Record:
MDI42A05SE00044
| Record Name(s) | Aumo No. 3 Vein - 1949, Hazelton Veins No. 4 and No. 5 - 1926 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Occurrence |
| Date Created | 2002-Feb-07 |
| Date Last Modified | 2022-Sep-27 |
| Created By | |
| Revised By |
Primary Commodities: Gold, Zinc
Secondary Commodities: Copper
Township or Area: Denton
Latitude: 48° 21' 15.36" Longitude: -81° 38' 42.44"
UTM Zone: 17 Easting: 452207.2 Northing: 5355877.68 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A05SE
Point Location Description: No. 3 Vein located on Geological Comp. Aumo Explorations Inc. Figure 1 in Timmins Assess. File T-10
Location Method: Based on Assessment
Access Description: The No. 3 vein is located about 400 m South of Hwy 101 about 30 km west of Timmins. Diamond Drill trails lead to the occurrence area.
Hazelton Porcupine Gold Mines Ltd. may have found this vein in about 1925 and called it the No. 4 vein. At least 3 drill holes totalling 905 feet tested the zone at that time. In 1946 Aumo Porcupine Gold Mines Ltd. completed 8 ddh on their No. 3 vein over a length of 260 m and a depth of 100 m In 1998 and 1999, Explorers Alliance Corporation drilled 3 ddh in the area of the No. 3 vein intersecting similar lithologies.
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-10 / 63.5483 | 42A05SE0102 | 42A05SE0102 |
| T-4453 / 2.20574 | 42A05SE2009 | 42A05SE2009 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Archean
Jun 12, 2020 (G Seim) - Hawley, J.E. (1926) describes the Hazelton Veins No. 4 and 5 as occurring in a 15-foot band of Keewatin schist. This band includes light-grey sericitic to dark and slaty schists. No definite vein system could be seen at the surface at the time. Portions are well mineralized with sulphides, pyrite, chalcopyrite and pyrrhotite. Three holes, totalling 905 feet in length, have been drilled across these veins. They as reported to have encountered several mineralized zones of schist, bands of feldspar porphyry (a phase of the granite) and a graphite seam or fault mineralized with pyrite, one of them ending in grey granite or granite porphyry. Choudry A.G. (1989) reports of the Aumo Drilling on the No. 3 vein. The vein is entirely within the metavolcanics and follows a graphitic shear zone that may have originally been a lens of slaty metasediments. Mineralization is largely coarse pyrite. There are sections in the acid metavolcanicsthat are heavily mineralized with pyrrhotite and chalcopyrite with low gold values. The best values were found in the graphitic zone where it is heavily mineralized with massive pyrite in blebs and seams. The pyrite makes up to 20 percent of the mineralized zone and values in this zone varied between 0.06 and 0.30 ounces Au per ton. The Explorers Alliance drillholes cut mafic to felsic volcanic rocks described as tuffs. 2 of the 3 drill holes on the zone intersected a unit described as felsic tuff/argillite/quartz veining. This unit carries semi-massive sulphides including pyrrhotite, pyrite chalcopyrite and sphalerite, and yield occurrence-grade Zn assays.
| Rock Type | Rank | Composition | Texture | Relationship | Mafic lava flow-unsubdivided | 1 | Near |
|---|---|---|---|---|
| Intermediate lava flow-unsubdivided | 2 | Near | ||
| Felsic lava flow-unsubdivided | 3 | Sericitic | Near | |
| Schist-Unsubdivided | 4 | Quartz Veined Graphitic Shear | Host |
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Chalcopyrite | Economic | Ore | ||||
| 2 | Sphalerite | Economic | Ore | ||||
| 1 | Pyrrhotite | Economic | Gangue | ||||
| 2 | Pyrite | Economic | Gangue | ||||
| Sericite | Alteration | Sericitization | 1 | Strong | Replacement |
Jun 12, 2020 (G Seim) - Aumo Porcupine Gold Mines Ltd. reportedly received gold values from this zone ranging from 0.06 to 0.30 opt Au. Explorers Alliance Corp intersected 5.6 averaging 4965 ppm Zn and 975 ppm Cu with only 21 ppb Au in DDH EM98-1 including 0.9 m of 6330 ppm Zn and 768 ppm Cu, and 1.2 m of 8960 ppm Zn and 1100 ppm Cu. DDH EM99-4 intersected 0.7 m grading 4540 ppm Zn and 953 Cu and 1.4 m grading 8960 ppm Zn and 1090 ppm Cu. A dacitic rock of 1.6 m in apparent width separates the two intervals of tuff/sediment.graphitic argillite.
Jun 12, 2020 (G Seim) - 4.5 m interval of sericite schist located near the sulphide mineralization.
Map - Geological series, Precambrian geology of Denton Township, Cochrane District
Publication Number: P2501 Scale: 1:15,840 Date: 1982
Author: Choudhry A.G.
Publisher Name: Ontario Geological Survey
Location:
Part - Geology of Ogden, Bristol, and Carscallen townships, Cochrane District
Publication Number: ARV35-06.001 Page: 34 Date: 1998
Author: Hawley J.E.
Publisher Name: Ontario Dept. of Mines
Location:
MonoMap - The geology of Keefer, Denton and Thorneloe townships, District of Cochrane
Publication Number: OFR5699 Page: 63 Date: 1989
Author: Choudhry A.G.
Publisher Name: Ontario Geological Survey
Location:
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