Timmins mine (Timmins West; McAuley-Brydge; Orpit; Piccadilly Porcupine; Holmer), Bristol Township, Timmins, Cochrane District, Ontario, Canadai
Regional Level Types | |
---|---|
Timmins mine (Timmins West; McAuley-Brydge; Orpit; Piccadilly Porcupine; Holmer) | Mine |
Bristol Township | Township |
Timmins | City |
Cochrane District | District |
Ontario | Province |
Canada | Country |
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Latitude & Longitude (WGS84):
48° 23' 0'' North , 81° 33' 18'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Timmins | 42,997 (2017) | 18.8km |
Mindat Locality ID:
256171
Long-form identifier:
mindat:1:2:256171:7
GUID (UUID V4):
1f8cb220-6abf-42c3-9ede-120ed67841e2
History:
1911-37: McAuley and Bridge - discovery, two short shafts, trenching, diamond drilling.
1938-48: Orpit Gold Mines and Piccadilly Porcupine Gold Mines and Stanwell Oil and Gas Ltd.: mapping, 87 ddh (13,800 m).
1959: Holmer Gold Mines purchased the property.
1964: United Buffadison Mines Ltd. - optioned the property, trenching, 10 ddh (2116 m).
1968-82: Holmer Gold Mines- diamond drilling ( 45 ddh, 10512 m), stripping and pitting, ground geophysics.
1984-86: Noranda - optioned the property and carried out airborne and ground magnetic and electromagnetic surveys, 4 ddh (1465 m).
1987-90: Chevron Minerals Ltd. - optioned the property, airborne magnetic survey, mapping, induced polarization, magnetic surveying, 29 ddh-6115 m, stripping, sampling.
1996-98: Holmer Gold Mines Ltd. - ground geophysics, geochemistry, diamond drilling (89 ddh).
1999: St. Andrew Goldfields - 10 ddh-1341 m.
2002: Holmer Gold Mines Ltd. - 22 ddh (5220 m).
2003-2009 - Lake Shore Gold Corp. - updated mineral resource estimate, DD-271-112305 m, airborne geophysics, soil sampling, stripping, sampling, metallurgical testing, UG DD-300-24572m, infrastructure development.
2011: Lake Shore Gold Corp. - in production
Geology:
Mineralization is strongly controlled by the older structural features. The sheared basalts and arenites form the preferred host to the mineralization and the mineralized chutes are orientated parallel to the dominant early fold axis. The older shear zone is not easy to discern and in the past has been mistaken for metasediments. This shear strikes east - west and dips steeply to the north. The dominant fold axis is typically the only discernible fold to be seen in most outcrops and in this area, this axis plunges steeply to the west in the plane of the older shear zone. The late fault which has been called the Bristol fault, consists of an unconsolidated breccia zone with a narrow fault plane filled with unconsolidated gouge. The character of this fault is dissimilar to the Destor - Porcupine Fault.
Within the metavolcanics a clear progressive alteration sequence is apparent yet within the metasediments only the ultimate alteration phases are discernible. The alteration in the volcanics consists of:- 1) widespread calcite alteration, 2) a narrow subtle graphitic front, 3) appearance of sericite in increasing amounts, 4) replacement of calcite by dolomite, 5) tourmalinization, 6) albitization, and finally silicification. Gold mineralization is associated with the tourmalinization and is apparently downgraded by the albitization and silicification. Secondary remobilisation resulted in the formation of numerous quartz veins small and large in many orientations. There are also a number of tourmaline veins. Gold mineralization is enriched in both these veins and these veins contain all the known visible gold occurrences. Pyrite is the most common sulphide occurring in various forms but is typically disseminated in low concentrations throughout the alteration zones. Arsenopyrite is restricted to the tourmalinized zones and occurs in fine or course disseminated grains. Larger euhedral grains of these sulphides together with traces of chalcopyrite, galena, and sphalerite occur in the remobilised veins.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
ⓘ Albite Formula: Na(AlSi3O8) References: |
ⓘ Arsenopyrite Formula: FeAsS References: |
ⓘ Chalcopyrite Formula: CuFeS2 References: |
ⓘ Dolomite Formula: CaMg(CO3)2 References: |
ⓘ Galena Formula: PbS References: |
ⓘ Gold Formula: Au References: |
ⓘ Pyrite Formula: FeS2 References: |
ⓘ Quartz Formula: SiO2 References: |
ⓘ Sphalerite Formula: ZnS References: |
ⓘ 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
ⓘ | Gold | 1.AA.05 | Au |
Group 2 - Sulphides and Sulfosalts | |||
ⓘ | Sphalerite | 2.CB.05a | ZnS |
ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
ⓘ | Galena | 2.CD.10 | PbS |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
Group 9 - Silicates | |||
ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
Unclassified | |||
ⓘ | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
List of minerals for each chemical element
B | Boron | |
---|---|---|
B | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
C | Carbon | |
C | ⓘ Dolomite | CaMg(CO3)2 |
O | Oxygen | |
O | ⓘ Albite | Na(AlSi3O8) |
O | ⓘ Dolomite | CaMg(CO3)2 |
O | ⓘ Quartz | SiO2 |
O | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
Na | Sodium | |
Na | ⓘ Albite | Na(AlSi3O8) |
Mg | Magnesium | |
Mg | ⓘ Dolomite | CaMg(CO3)2 |
Al | Aluminium | |
Al | ⓘ Albite | Na(AlSi3O8) |
Si | Silicon | |
Si | ⓘ Albite | Na(AlSi3O8) |
Si | ⓘ Quartz | SiO2 |
S | Sulfur | |
S | ⓘ Arsenopyrite | FeAsS |
S | ⓘ Chalcopyrite | CuFeS2 |
S | ⓘ Galena | PbS |
S | ⓘ Pyrite | FeS2 |
S | ⓘ Sphalerite | ZnS |
Ca | Calcium | |
Ca | ⓘ Dolomite | CaMg(CO3)2 |
Fe | Iron | |
Fe | ⓘ Arsenopyrite | FeAsS |
Fe | ⓘ Chalcopyrite | CuFeS2 |
Fe | ⓘ Pyrite | FeS2 |
Cu | Copper | |
Cu | ⓘ Chalcopyrite | CuFeS2 |
Zn | Zinc | |
Zn | ⓘ Sphalerite | ZnS |
As | Arsenic | |
As | ⓘ Arsenopyrite | FeAsS |
Au | Gold | |
Au | ⓘ Gold | Au |
Pb | Lead | |
Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
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