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Keeley-Frontier Mine
Keeley-Frontier Mine is a large abandoned mine in the ghost town of Silver Centre, Northeastern Ontario, Canada. It consists of two underground mines that were sunk below the surface. Keeley Mine was discovered in 1907 while Frontier Mine was constructed in 1921. The 8th level of the Keeley Mine connected with the 6th level of the Frontier Mine in 1962, creating the two compartment Keeley-Frontier Mine. In 1965, Keeley-Frontier Mine closed with a total production of of silver, of cobalt, of nickel and of copper. Keeley-Frontier Mine is considered to have produced some of the finest silver wire specimens in Canada. Robert Jowsey, Charles Keeley, and John Woods discovered silver after they "lit a fire to thaw out the ground," according to Barnes. Keeley Mine The discovery in the Fall of 1907, involved the finding of a smaltite vein 2-6 inches wide containing 11,000 ounces of "wire silver" per ton. "Wood's vein" was discovered the next year. The original vein was developed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Centre
Silver Centre is a ghost town in Timiskaming District, Northeastern Ontario, Canada, situated in South Lorrain Township. It is located approximately south of North Cobalt, and west of Highway 567. Silver Centre was a secondary camp to the great silver fields of Cobalt, discovered in 1903. There are no current residents in Silver Centre. It is still an active mineral field and does at times have active mineral exploration. The first discovery of silver in the area was made in the 1874 by a lumberman named Pat Manion. He blazed a stump as a witness or discovery tree and showed his sample to his fellow workers at the bunkhouse; everybody believed the sample to be common lead, and Manion agreed. A decade later while discussing his find to a young geologist, Manion discovered that the sample was nearly pure silver, to his surprise. Manion returned to the Ryan Timber Limit where he searched in vain for the location, but was unsuccessful in his attempt. The story of Manion's lost sil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vein (geology)
In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock. Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation. The hydraulic flow involved is usually due to hydrothermal circulation. Veins are classically thought of as being planar fractures in rocks, with the crystal growth occurring normal to the walls of the cavity, and the crystal protruding into open space. This certainly is the method for the formation of some veins. However, it is rare in geology for significant open space to remain open in large volumes of rock, especially several kilometers below the surface. Thus, there are two main mechanisms considered likely for the formation of veins: ''open-space filling'' and ''crack-seal growth''. Open space filling Open space filling is the hallmark of epithermal vein systems, such as a stockwork, in greisens or in certain skarn environments. For open space fillin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cobalt Mines In Canada
Cobalt is a chemical element; it has symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, somewhat brittle, gray metal. Cobalt-based blue pigments (cobalt blue) have been used since antiquity for jewelry and paints, and to impart a distinctive blue tint to glass. The color was long thought to be due to the metal bismuth. Miners had long used the name ''kobold ore'' (German for ''goblin ore'') for some of the blue pigment-producing minerals. They were so named because they were poor in known metals and gave off poisonous arsenic-containing fumes when smelted. In 1735, such ores were found to be reducible to a new metal (the first discovered since ancient times), which was ultimately named for the ''kobold''. Today, some cobalt is produced specifically from one of a number of me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Mines In Canada
Silver is a chemical element; it has Symbol (chemistry), symbol Ag () and atomic number 47. A soft, whitish-gray, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. Silver is found in the Earth's crust in the pure, free elemental form ("native metal, native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc Refining (metallurgy), refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes bimetallism, alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of the seven metals of antiquity, silver has had an enduring role in most human cultures. Other than in currency and as an in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cobalt Silver Rush
The Cobalt silver rush was a silver rush in Ontario, Canada that began in 1903 when huge veins of silver were discovered by workers on the Temiskaming and Northern Ontario Railway (T&NO) near the Mile 103 post. By 1905 a full-scale silver rush was underway, and the town of Cobalt, Ontario sprang up to serve as its hub. By 1908 Cobalt produced 9% of the world's silver, and in 1911 produced 31,507,791 ounces of silver. However, the good ore ran out fairly rapidly, and most of the mines were closed by the 1930s. There were several small revivals over the years, notably in World War II and again in the 1950s, but both petered out and today there is no active mining in the area. In total, the Cobalt area mines produced 460 million ounces of silver. The Cobalt Rush was instrumental in opening northern Ontario for mineral exploration. Prospectors fanned out from Cobalt, and soon caused the nearby Porcupine Gold Rush in 1909, and the Kirkland Lake Gold Rush of 1912. Much of the settlem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porcupine Gold Rush
The Porcupine Gold Rush was a gold rush that took place in Northern Ontario starting in 1909 and developing fully by 1911. A combination of the hard rock of the Canadian Shield and the rapid capitalization of mining meant that smaller companies and single-man operations could not effectively mine the area, as opposed to earlier rushes where the gold could be extracted through placer mining techniques. Although a number of prospectors made their fortune, operations in the area are marked largely by the development of larger mining companies, and most people involved in the mining operations were their employees. The mines peaked between the 1940s and the 1950s but still continue to produce gold although the many smaller mines have been consolidated into a small number of larger holdings. By 2001, 67 million troy ounces of gold have been mined from the Porcupine area, making it by far the largest gold rush in terms of actual gold produced. For comparison, the well-known Klondike G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Mines In Ontario
This is a list of mines in the Canadian province of Ontario and includes both operating and closed mines. *Adams Mine *Agnew Lake Mine *Amalgamated Larder Mine *Argonaut Mine *Armistice Mine *Associated Goldfields Mine *Barber Larder Mine *Barton Mine *Beanland Mine *Bell Creek Mine *Bidgood Mine *Bicroft Mine (uranium) *Big Dan Mine *Black Fox Mine *Buckles Mine *Campbell Mine *Can-Met Mine *Cheminis Mine *Chesterville gold mine *Coleman Mine *Copper Cliff North Mine *Copper Cliff South Mine *Copperfields Mine *Coppersand Mine *Cote Gold Mine *Craig Mine *Creighton Mine *Denison Mine *Detour Gold Mine *Dome Mine *Dyno Mine (uranium) *Eagle River Mine *Falconbridge Mine *Faraday Mine (now Madawaska Mine) *Frood Mine *Fraser Mine *Garson Mine *Geco Mine *Goderich, Ontario#Industry##Goderich Salt Mines, Goderich Salt Mines – Sifto Canada *Golden Giant Mine *Greenstone gold mine *Greyhawk Mine (Uranium) *Hagersville-CGC *Hemlo Mine *Hermiston-McCauley Mine *Hollinger Mines *Hollowa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nipissing Sills
The Nipissing sills, also called the Nipissing diabase, is a large 2217– to 2210–million year old group of sill (geology), sills in the Superior craton of the Canadian Shield in Ontario, Canada, which intrude the Huronian Supergroup. Nipissing sills intrude all the Huronian sediments and older basement rocks in the northern margin of the Sudbury Basin; they were emplaced after the fault (geology), faulting and fold (geology), folding of Huronian rocks, and are hornblende gabbro of tholeiitic basalt composition. In the Greater Sudbury, Sudbury–Elliot Lake area the Nipissing diabase is deformed; outcrops are parallel to the fold axes of the Huronian sedimentary rocks. Nipissing diabase intrusions are east-northeast trending and are no wider than . The Nipissing sills in the Southern Province of the Superior craton are thought to originate from a radiating dike swarm area to the northeast. The mantle source for the Nipissing sills did not come from the mantle beneath the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metavolcanic Rock
Metavolcanic rock is volcanic rock that shows signs of having experienced metamorphism. In other words, the rock was originally produced by a volcano, either as lava or tephra. The rock was then subjected to high pressure, high temperature or both, for example by burial under younger rocks, causing the original volcanic rock to recrystallize. Metavolcanic rocks are sometimes described informally as ''metavolcanics''. When it is possible to determine the original volcanic rock type from the properties of the metavolcanic rock (particularly if the degree of metamorphism is slight), the rock is more precisely named by appylying the prefix ''meta-'' to the original rock type. For example, a weakly metamorphosed basalt Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ... would be describe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reverse Fault
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geological maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Option (finance)
In finance, an option is a contract which conveys to its owner, the ''holder'', the right, but not the obligation, to buy or sell a specific quantity of an underlying asset or instrument at a specified strike price on or before a specified date, depending on the style of the option. Options are typically acquired by purchase, as a form of compensation, or as part of a complex financial transaction. Thus, they are also a form of asset (or contingent liability) and have a valuation that may depend on a complex relationship between underlying asset price, time until expiration, market volatility, the risk-free rate of interest, and the strike price of the option. Options may be traded between private parties in '' over-the-counter'' (OTC) transactions, or they may be exchange-traded in live, public markets in the form of standardized contracts. Definition and application An option is a contract that allows the holder the right to buy or sell an underlying asset or financia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smaltite
Smaltite is a variety of the mineral skutterudite consisting of cobalt, iron, nickel, and arsenide. It has the chemical formula . Smaltite crystallizes in the cubic system with the same hemihedral symmetry as pyrite; crystals have usually the form of cubes or cubo-octahedra, but are imperfectly developed and of somewhat rare occurrence. More often the mineral is found as compact or granular masses. The color is tin-white to steel-grey, with a metallic luster; the streak is greyish black. Hardness is 5.5 and the specific gravity is 6.5. The cobalt is partly replaced by iron and nickel, and as the latter increases in amount there is a passage to the isomorphous species chloanthite (). Smaltite occurs in veins with ores of cobalt, nickel, copper and silver. The best known localities are Cobalt, Ontario and Schneeberg in Saxony, Germany. The name smaltite was given by F. S. Beudant in 1832 because the mineral was used in the preparation of smalt for producing a blue color in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
