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Heath Steele Mines
Heath Steele Mines, situated northwest of Newcastle, New Brunswick, Canada, at the headwaters of the Tomogonops and Little Rivers, was a large and productive copper, lead, and zinc mine which operated from 1956 to 1999. The mine was an economic cornerstone of Miramichi communities throughout this period. The mine was initially developed as a collaboration between the American Metal Company (later Amax) and Inco (International Nickel Company) and consequently was also known as the Little River Joint Venture. The mine was named after Mr. Heath Steele, the Vice-President of Exploration of the American Metal Company. It seems that Mr. Steele had little directly to do with the mine, but the parent company probably bestowed the name as an honour on his retirement from the company. No smelter was included in the facility. The ore concentrates were instead hauled by rail to various smelter operations (for example at Belledune) for further processing, or to the ports at Newcastle and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northumberland County, New Brunswick
Northumberland County is located in northeastern New Brunswick, Canada. Geography Northumberland County is covered by thick forests, whose products stimulate the economy. The highest peaks in the province, including Mount Carleton lie in the northwestern corner of the county. The county is dominated by the Miramichi River, world famous for its salmon fishing. The lower portion of the river is an estuary that widens into Miramichi Bay, a part of the Gulf of St. Lawrence. Services The city of Miramichi is a local service centre for the county and surrounding regions with schools, hospitals and government offices and retail locations. The county has several saw mills in the city of Miramichi and up the Southwest Branch of the Miramichi River. There were formerly two large pulp and paper mills at Miramichi. Chatham was also home to an air force base, CFB Chatham, until 1996. Renous-Quarryville, located along the Southwest Miramichi was also home to an army post - a federal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
History Of Canada
The history of Canada covers the period from the arrival of the Paleo-Indians to North America thousands of years ago to the present day. Prior to European colonization, the lands encompassing present-day Canada were inhabited for millennia by Indigenous peoples, with distinct trade networks, spiritual beliefs, and styles of social organization. Some of these older civilizations had long faded by the time of the first European arrivals and have been discovered through archeological investigations. From the late 15th century, French and British expeditions explored, colonized, and fought over various places within North America in what constitutes present-day Canada. The colony of New France was claimed in 1534 with permanent settlements beginning in 1608. France ceded nearly all its North American possessions to the United Kingdom in 1763 at the Treaty of Paris after the Seven Years' War. The now British Province of Quebec was divided into Upper and Lower Canada in 1791. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Northumberland County, New Brunswick
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc Mines In Canada
Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table. In some respects, zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size.The elements are from different metal groups. See periodic table. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity (electrowinning). Zinc is an essential trace element for humans, animals, plants and for microorganisms and is necessary for prenatal and postnatal development. It is the secon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead Mines In Canada
Lead is a chemical element with the symbol Pb (from the Latin ) and atomic number 82. It is a heavy metal that is denser than most common materials. Lead is soft and malleable, and also has a relatively low melting point. When freshly cut, lead is a shiny gray with a hint of blue. It tarnishes to a dull gray color when exposed to air. Lead has the highest atomic number of any stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is toxic, even in small amounts, especially to children. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its amphoteric nature; lead and lead oxides react with acids and bases, and it tends to form covalent bonds. Compounds of lead are usually found in the +2 oxidation state rather than the +4 state common with lighter members of the carbon group. Exceptions are mostly limited to organolead compounds. Like the lighter members of the grou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper Mines In Canada
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form (native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create bronze, c. 350 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mines In New Brunswick
Mine, mines, miners or mining may refer to: Extraction or digging *Miner, a person engaged in mining or digging *Mining, extraction of mineral resources from the ground through a mine Grammar *Mine, a first-person English possessive pronoun Military * Anti-tank mine, a land mine made for use against armored vehicles * Antipersonnel mine, a land mine targeting people walking around, either with explosives or poison gas * Bangalore mine, colloquial name for the Bangalore torpedo, a man-portable explosive device for clearing a path through wire obstacles and land mines * Cluster bomb, an aerial bomb which releases many small submunitions, which often act as mines * Land mine, explosive mines placed under or on the ground * Mining (military), digging under a fortified military position to penetrate its defenses * Naval mine, or sea mine, a mine at sea, either floating or on the sea bed, often dropped via parachute from aircraft, or otherwise lain by surface ships or submarines * Par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanogenic Massive Sulfide Ore Deposit
Volcanogenic massive sulfide ore deposits, also known as VMS ore deposits, are a type of metal sulfide ore deposit, mainly copper-zinc which are associated with and created by volcanic-associated hydrothermal events in submarine environments. These deposits are also sometimes called volcanic-hosted massive sulfide (VHMS) deposits. The density generally is 4500 kg/m3. They are predominantly stratiform accumulations of sulfide minerals that precipitate from hydrothermal fluids on or below the seafloor in a wide range of ancient and modern geological settings. In modern oceans they are synonymous with sulfurous plumes called black smokers. They occur within environments dominated by volcanic or volcanic derived (e.g., volcano-sedimentary) rocks, and the deposits are coeval and coincident with the formation of said volcanic rocks. As a class, they represent a significant source of the world's copper, zinc, lead, gold and silver ores, with cobalt, tin, barium, sulfur, selenium, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miramichi River
The Miramichi River is a river located in the east-central part of New Brunswick, Canada. The river drains into Miramichi Bay in the Gulf of St. Lawrence. The name may have been derived from the Montagnais words "Maissimeu Assi" (meaning Mi'kmaq Land), and it is today the namesake of the Miramichi Herald at the Canadian Heraldic Authority. Geography The Miramichi River watershed drains a territory comprising one-quarter of New Brunswick's territory, measuring approximately 13,000 km² of which 300 km² is an estuarine environment on the inner part of Miramichi Bay. The watershed roughly corresponds to Northumberland County, but also includes sections of Victoria County, Carleton County, and York County and smaller parts of Gloucester County and Sunbury County. The Miramichi River meander length measures approximately 250 km and comprises two important branches, the Southwest Miramichi River and the Northwest Miramichi River, each having their respe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acid Mine Drainage
Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks containing an abundance of sulfide minerals. Areas where the earth has been disturbed (e.g. construction sites, subdivisions, and transportation corridors) may create acid rock drainage. In many localities, the liquid that drains from coal stocks, coal handling facilities, coal washeries, and coal waste tips can be highly acidic, and in such cases it is treated as acid rock drainage. This liquid often contains highly toxic metals, such as copper or iron. These, combined with reduced pH, have a detrimental impact on the streams aquatic environments. The same type of chemical reactions and pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heavy Metal (chemistry)
upright=1.2, Crystals of osmium, a heavy metal nearly twice as dense as lead">lead.html" ;"title="osmium, a heavy metal nearly twice as dense as lead">osmium, a heavy metal nearly twice as dense as lead Heavy metals are generally defined as metals with relatively high density, densities, atomic weights, or atomic numbers. The criteria used, and whether metalloids are included, vary depending on the author and context. In metallurgy, for example, a heavy metal may be defined on the basis of density, whereas in physics the distinguishing criterion might be atomic number, while a chemist would likely be more concerned with chemical property, chemical behaviour. More specific definitions have been published, but none of these have been widely accepted. The definitions surveyed in this article encompass up to 96 out of the 118 known chemical elements; only mercury, lead and bismuth meet all of them. Despite this lack of agreement, the term (plural or singular) is widely used in s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Environmental Degradation
Environmental degradation is the deterioration of the environment (biophysical), environment through depletion of resources such as quality of air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution. It is defined as any change or disturbance to the environment perceived to be deleterious or undesirable. Environmental concerns can be defined as the negative effects of any human activity on the environment. The biological as well as the physical features of the environment are included. Some of the primary environmental challenges that are causing great worry are air pollution, water pollution, natural environment pollution, rubbish pollution, and so o Environmental degradation is one of the ten threats officially cautioned by the High-level Panel on Threats, Challenges and Change, high-level PaneI on Threats, Challenges and Change of the United Nations. The United Nations International Strategy for Disaster Reduction defin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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