Ontario Geological Survey
Permanent Link to this Record:
MDI42A06NW00200
| Record Name(s) | TPW Property - 2013, Porcupine West Property - 2009, Cameco East Zone - 2002, Cameco DDH BRS02-16 - 2002 |
|---|---|
| Related Record Type | Simple |
| Related Record(s) | |
| Record Status | Developed Prospect With Reported Reserves or Resources |
| Date Created | 2004-Aug-19 |
| Date Last Modified | 2023-Oct-31 |
| Created By | |
| Revised By |
Primary Commodities: Gold
Township or Area: Bristol
Latitude: 48° 24' 37.5" Longitude: -81° 27' 58.76"
UTM Zone: 17 Easting: 465491.22 Northing: 5362022.9 UTM Datum: NAD83
Resident Geologist District: Timmins
NTS Grid: 42A06NW
Point Location Description: approximate centre of drill hole cluster
Location Method: Data Compilation
Access Description: The property is located in the centre and along the eastern boundary of Bristol Township. Highway 101 bisects the property and provides easy access to the site. Access to the drill site is via Gagnon's auto wrecking yard. Access to the rest of the Property is provided by a cut-grid with a northwest-striking baseline (bearing 330º) cut originally by Teck Corporation in 1995, and some unmaintained, former logging roads.
1984-88: Placer Dome Inc. - mapping, ground geophysics, 81 ddh (20,143 m). 1995-95: Teck Corporation - ground geophysics, 4 ddh (1625 m). 1998-2002: Cameco Gold Inc. - ground geophysics, 3 ddh. 2003-04: Tom Exploration Inc. - ground geophysics, DD-10,000 m. 2006: Property transferred to R. Moran 2009-2013: Explor Resources - DD-118, down-hole geophysics, resource calculation
| Office File Number | Online Assessment File Identifier | Online Assessment File Directory |
|---|---|---|
| T-2944 / W8906.209 | 42A06NW8493 | 42A06NW8493 |
| T-2944 / 2.10927 | 42A06NW8472 | 42A06NW8472 |
| T-2944 / 345/87 | 42A06NW8468 | 42A06NW8468 |
| T-2944 /365/86 | 42A06NW8467 | 42A06NW8467 |
| T-2944 / 074/86 | 42A06NW8605 | 42A06NW8605 |
| T-2944 / 2.7851 | 42A06NW8422 | 42A06NW8422 |
| T-3684 / 2.15861 | 42A06NW0041 | 42A06NW0041 |
| T-6329 / 2.50279 / W1160.02762 | 20000008100 | 20000008100 |
| T-6323 / 2.50289 | 20000007015 | 20000007015 |
| T-6447 / 2.52363 | 20000009206 | 20000009206 |
| T-4780 / 2.24662 | 42A06NW2034 | 42A06NW2034 |
| T-2944 / W9006.60238 | 42A06NW8453 | 42A06NW8453 |
| T-3684 / 2.16073 | 42A06NW0011 | 42A06NW0011 |
| T-4514/ 2.20856 | 42A06NW2023 | 42A06NW2023 |
| T-4742/ 2.24251 | 42A06NW2031 | 42A06NW2031 |
| T-4344/ 2.20146 | 42A06NW2020 | 42A06NW2020 |
Province: Superior
Subprovince: Abitibi
Terrane: Wawa-Abitibi
Belt: Abitibi
Geological Age: Neoarchean
| Rock Type | Rank | Composition | Texture | Relationship | Quartz-Feldspar Porphyry | 1 | Quartz-Feldspar | Host |
|---|---|---|---|---|
| Siltstone | 2 | Argillic | Adjacent |
Aug 28, 2012 (A Wilson) - The occurrences are hosted within a southwest striking parcel of metasediments which are bounded to the north by mafic metavolcanic rocks and intruded in the central part by a variably altered quartz-feldspar porphyryitic intrusion. The sediments consist of a sequence of chloritic interbeded sandsones and argillitic mudstones. Close to the main porphyry intusion, the sediments are coarser grained with only minor mudstone horizons. The geology, mineralization and alteration is characterized by chalcopyrite-pyrite stringers and veins, and quartz-tourmaline veins, hosted by altered and sheared quartz-feldspar porphyry (QFP). The QFP lies along a regional deformation corridor that passes near the centre of the property. Gold values are spatially associated with disseminated, fine- to coarse-grained, subhedral pyrite that locally forms crude bands in the strongly foliated QFP. These chloritized bands of pyrite, which locally include chalcopyrite and reddish (i.e., moderately iron-rich) sphalerite, may be cored by quartz-carbonate veins that have been subsequently boudinaged. Within the QFP, gold enrichment is focused along several sub-parallel shears that are mineralized with stringers and veins of pyrite and chalcopyrite.
| Rank | Mineral Name | Class | Economic Mineral Type | Alteration Mineral Type | Alteration Ranking | Alteration Intensity | Alteration Style |
|---|---|---|---|---|---|---|---|
| 1 | Pyrite | Economic | Gangue | ||||
| 2 | Chalcopyrite | Economic | Gangue | ||||
| 3 | Tourmaline | Economic | Gangue |
Nov 12, 2013 (A Wilson) - The best assay from the Cameco drill hole returned 3.6 g/t Au over 5.5 m. Drill hole BRS-01-08 in the same vicinity returned 2.6 g/t Au over 6.1 m. Not all pyrite is associated with gold mineralization. Free grains of visible gold have been documented in quartz-carbonate and chlorite veins, and as inclusions in pyrite and chalcopyrite (but not with sphalerite). Chlorite-calcite-silica-sulphide stringers and wisps (veinlets) overprint the strongly foliated chloritized pyrite bands. The late stringers were likely emplaced late in the deformation event as they are only weakly deformed compared with the host rock. In addition, the associated chloritic alteration overprints the earlier sericitic alteration. Late quartz-carbonate-chlorite, hematite, tourmaline veinlet stockworks cross-cut the QFP, but there is no apparent correlation between the veinlets and the gold. Mineralization on the TPW Property is closely associated with shear zones in the quartz feldspar porphyry intrusion and metasediments with quartz feldspar porphyry dykes. The porphyry lies along a deformation corridor associated with the Bristol Fault that passes near the centre of the Property. Drilling by Explor has shown that the mineralized shear-zones in the QFP extend for 1,975 m along strike and to depths up to 900 m. Mineralization occurs in several parallel 70 to 80o north dipping “veins” that occur within a zone that is approximately 750 m wide. Mineralized intercepts are generally associated with altered and sheared QFP and are typically 1 to 18 m wide with an average width of 3.5m.
| Rank | Classification |
|---|---|
| 1 | Mesothermal |
| 2 | Vein |
| Rank | Characteristic |
|---|---|
| 1 | Sheared |
| Shape | Length | Thickness | Depth | Strike | Dip | Plunge | Trend | Age | Reference |
|---|---|---|---|---|---|---|---|---|---|
| Regular | 2000 | 900 |
| Zone | Year | Category | Tonnes | Reference | Comments | Commodities |
|---|---|---|---|---|---|---|
| Porcupine West Property - UNDERGROUND | 2013 | Inferred Mineral Resource | 5185000 | NI 43-101 rpt, p. 3 | 393,000 contained ounces | Gold 2.36 Grams per Tonne |
| Porcupine West Property - OPEN PIT | 2013 | Indicated Mineral Resource | 4283000 | NI 43-101 rpt, p.3 | 213,000 contained ounces | Gold 1.55 Grams per Tonne |
| Porcupine West Property - OPEN PIT | 2013 | Inferred Mineral Resource | 1140000 | NI 43-101 rpt, p. 3 | 77,000 contained ounces | Gold 2.09 Grams per Tonne |
| Porcupine West Property - UNDERGROUND | 2013 | Indicated Mineral Resource | 4420000 | NI 43-101 rpt, p. 3 | 396,000 contained ounces | Gold 2.79 Grams per Tonne |
| Porcupine West Property - 2 | 2012 | Inferred Mineral Resource | 7122000 | press release, June 6, 2012 | 814,800 contained ounces | Gold 3.56 Grams per Tonne |
| Porcupine West Property | 2012 | Indicated Mineral Resource | 770465 | NI 43-101 rpt, p. 5 | 126,977 contained ounces | Gold 5.13 Grams per Tonne |
| Porcupine West Property | 2012 | Inferred Mineral Resource | 5522684 | NI 43-101 rpt, p. 5 | 704,198 contained ounces | Gold 3.97 Grams per Tonne |
| Porcupine West Property | 2012 | Unclassified | 6293149 | NI 43-101 rpt, p. 5 | INDICATED AND INFERRED; 831 175 contained ounces | Gold 4.11 Grams per Tonne |
| Porcupine West Property - 2 | 2012 | Indicated Mineral Resource | 1371000 | press release, June 6, 2012 | 212,800 contained ounces | Gold 4.83 Grams per Tonne |
Compend - Summary of Field Work and Other Activities, 2000
Publication Number: OFR6032 Page: 4.1-4.11 Date: 2000
Author: Ayer J.A., Baker C.L., Kelly R.I., Parker J.R., Stott G.M., Thurston P.C.
Publisher Name: Ontario Geological Survey
Location:
Map - Precambrian Geology, Timmins West - Bristol and Ogden Townships
Publication Number: P3436 Scale: 1:20,000 Date: 2001
Author: Vaillancourt C., Pickett C.L., Dinel E.
Publisher Name: Ontario Geological Survey
Location:
Map - Geological Compilation of the Timmins Area, Abitibi Greenstone Belt
Publication Number: P3379 Scale: 1:100,000 Date: 1998
Author: Ayer J.A., Trowell N.F.
Publisher Name:
Location:
Publication - Timmins Porcupine West Property, NI-43-101 rpt, 100p.
Publication Number: NI 43-101 rpt Date: 2012
Author: J. Langdon, E. Puritch, A. Yassa, T. Armstrong
Publisher Name:
Location: Timmins RGO
Publication - Press releases – Explor Resources
Publication Number: Date: 2009
Author:
Publisher Name:
Location: Timmins RGO
Publication - Mineral deposits of Canada: a synthesis of major deposit-types, district metallogeny, the evolution of geological provinces, and exploration methods; GAC, Mineral Deposits Division, Special Publication no. 5
Publication Number: SP5 Page: 49-73 Date: 2007
Author: Dubé, B; Gosselin, P
Publisher Name: Geological Association of Canada
Location:
Publication - Timmins Porcupine West Property, Technical Report and Resource Estimate, NI-43-101 rpt, 108p.
Publication Number: NI 43-101 rpt Date: 2013
Author: E. Puritch, R. Sutcliffe, T. Armstrong, A. Yassa
Publisher Name:
Location: Timmins RGO
We are continuously updating our assessment file / technical report information. If you notice errors in the data, please contact us.
Please review our Terms of Use agreement for this data product.
For detailed information regarding this mineral record please contact the Timmins Resident Geologist District Office