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Giant Mine
The Giant Mine was a gold mine located on the Ingraham Trail, north of Yellowknife, Northwest Territories. Giant Mine was within the Kam Group, a part of the Yellowknife greenstone belt. Gold was discovered on the property and mineral claims staked in 1935 by Johnny Baker, but the true extent of the gold deposits was not known until 1944, when a massive gold-bearing shear zone was uncovered beneath the drift-filled Baker Creek Valley. History The discovery led to a massive post-war staking boom in Yellowknife. Giant Mine entered production in 1948 and ceased operations in 2004. It produced over of gold. Owners of the mine have included Falconbridge (1948–1986 through subsidiary Giant Yellowknife Mines Limited), Pamour of Australia (1986–1990 through subsidiary Giant Yellowknife Mines Limited), and Royal Oak Mines (1990–1999). When Royal Oak went bankrupt in 1999 the Department of Indian Affairs and Northern Development (DIAND) took over responsibility for cleaning u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Provinces And Territories Of Canada
Canada has ten provinces and three territories that are sub-national administrative divisions under the jurisdiction of the Constitution of Canada, Canadian Constitution. In the 1867 Canadian Confederation, three provinces of British North America—New Brunswick, Nova Scotia, and the Province of Canada (which upon Confederation was divided into Ontario and Quebec)—united to form a federation, becoming a fully Independence, independent country over the next century. Over its history, Canada's international borders have changed several times as it has added territories and provinces, making it the List of countries and dependencies by area, world's second-largest country by area. The major difference between a Canadian province and a territory is that provinces receive their power and authority from the ''Constitution Act, 1867'' (formerly called the ''British North America Acts, British North America Act, 1867''), whereas territories are federal territories whose governments a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining
Mining is the Resource extraction, extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agriculture, agricultural processes, or feasibly created Chemical synthesis, artificially in a laboratory or factory. Ores recovered by mining include Metal#Extraction, metals, coal, oil shale, gemstones, limestone, chalk mining, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even fossil water, water. Modern mining processes involve prospecting for ore bodies, analysis of the profit potential of a proposed mine, extraction of the desired materials, and final mine reclamation, reclamation or restoration of the land after the mine is closed. Mining ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arsenopyrite
Arsenopyrite ( IMA symbol: Apy) is an iron arsenic sulfide (FeAsS). It is a hard ( Mohs 5.5–6) metallic, opaque, steel grey to silver white mineral with a relatively high specific gravity of 6.1. When dissolved in nitric acid, it releases elemental sulfur. When arsenopyrite is heated, it produces sulfur and arsenic vapor. With 46% arsenic content, arsenopyrite, along with orpiment, is a principal ore of arsenic. When deposits of arsenopyrite become exposed to the atmosphere, the mineral slowly converts into iron arsenates. Arsenopyrite is generally an acid-consuming sulfide mineral, unlike iron pyrite which can lead to acid mine drainage. The crystal habit, hardness, density, and garlic odour when struck are diagnostic. Arsenopyrite in older literature may be referred to as ''mispickel'', a name of German origin. It is also sometimes referred to as mundic, a word derived from Cornish dialect and which also refers to a copper ore, as well as a form of deterioration in agg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aboriginal Affairs And Northern Development Canada
Aborigine, aborigine or aboriginal may refer to: * Aborigines (mythology), the oldest inhabitants of central Italy in Roman mythology * Indigenous peoples, general term for ethnic groups who are the earliest known inhabitants of an area *One of several groups of indigenous peoples, see List of indigenous peoples, including: **Aboriginal Australians ("Aborigine" is an archaic term that is often considered offensive) **Indigenous peoples in Canada, also known as Aboriginal Canadians ** Orang Asli or Malayan aborigines **Taiwanese indigenous peoples Taiwanese indigenous peoples, formerly called Taiwanese aborigines, are the indigenous peoples of Taiwan, with the nationally recognized subgroups numbering about 600,303 or 3% of the Geography of Taiwan, island's population. This total is incr ..., formerly known as Taiwanese aborigines See also * * *'' ab-Original: Journal of Indigenous Studies and First Nations and First Peoples' Cultures'' * Australian Aboriginal identity * Austr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asbestos
Asbestos ( ) is a group of naturally occurring, Toxicity, toxic, carcinogenic and fibrous silicate minerals. There are six types, all of which are composed of long and thin fibrous Crystal habit, crystals, each fibre (particulate with length substantially greater than width) being composed of many microscopic "fibrils" that can be released into the atmosphere by Abrasion (mechanical), abrasion and other processes. Inhalation of asbestos fibres can lead to various dangerous lung conditions, including mesothelioma, asbestosis, and lung cancer. As a result of these health effects, asbestos is considered a serious Health hazard, health and safety hazard. Archaeological studies have found evidence of asbestos being used as far back as the Stone Age to strengthen ceramic pots, but large-scale mining began at the end of the 19th century when manufacturers and builders began using asbestos for its desirable physical properties. Asbestos is an excellent Thermal insulation, thermal and In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asbestos Fibers
Asbestos ( ) is a group of naturally occurring, toxic, carcinogenic and fibrous silicate minerals. There are six types, all of which are composed of long and thin fibrous crystals A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macrosc ..., each fibre (particulate with length substantially greater than width) being composed of many microscopic "fibrils" that can be released into the atmosphere by Abrasion (mechanical), abrasion and other processes. Inhalation of asbestos fibres can lead to various dangerous lung conditions, including mesothelioma, asbestosis, and lung cancer. As a result of these health effects, asbestos is considered a serious Health hazard, health and safety hazard. Archaeological studies have found evidence of asbestos being used as far back as the Stone Age to strengt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soil Contamination
Soil contamination, soil pollution, or land pollution as a part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste. The most common chemicals involved are petroleum hydrocarbons, polynuclear aromatic hydrocarbons (such as naphthalene and benzo(a)pyrene), solvents, pesticides, lead, and other heavy metals. Contamination is correlated with the degree of industrialization and intensity of chemical substance. The concern over soil contamination stems primarily from health risks, from direct contact with the contaminated soil, vapour from the contaminants, or from secondary contamination of water supplies within and underlying the soil. Mapping of contaminated soil sites and the resulting clean ups are time-consuming and expensive tasks, and require expertise in geology, hydrology, chemistry, computer m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tailing Pond
In mining, tailings or tails are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore. Tailings are different from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed. Waste valorization is the evaluation of waste and residues from an economic process in order to determine their value in reuse or recycling, as what was gangue at the time of separation may increase with time or more sophisticated recovery processes. The extraction of minerals from ore can be done two ways: placer mining, which uses water and gravity to concentrate the valuable minerals, or hard rock mining, which pulverizes the rock containing the ore and then relies on chemical reactions to concentrate the sought-after material. In the latter, the extraction of minerals from ore requires comminution, i.e., grinding the ore into fine particles t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open-pit Mining
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique that extracts rock (geology), rock or minerals from the earth. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface where the overburden is relatively thin. In contrast, deeper mineral deposits can be reached using underground mining. Open-pit mining is considered one of the most dangerous industrial sector, sectors in the industrial world. It causes significant effects to miners' health, as well as damage to the ecological land and water. Open-pit mining causes changes to vegetation, soil, and bedrock, which ultimately contributes to changes in surface hydrology, groundwater levels, and flow paths. Additionally, open-pit produces harmful pollutants depending on the type of mineral being mined, and the type of mining process being used. Extraction Miners typically drill a series of test holes to locate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government Of The Northwest Territories
The Government of the Northwest Territories () is the body responsible for the administration of the Canadian territory of the Northwest Territories. In modern Canadian use, the term ''Government of the Northwest Territories'' refers specifically to the executive—political ministers of the Crown (the Cabinet / Executive Council) who are appointed on the advice of the premier. Ministers direct the non-partisan civil service, who staff ministries and agencies to deliver government policies, programs, and services. The executive corporately brands itself as the ''Government of the Northwest Territories.'' The Northwest Territories operates as a consensus government. The premier of the Northwest Territories is elected by the Legislative Assembly and ministers are selected by the Legislative Assembly, but their portfolios are assigned by the Premier. Role of the Federal Government The powers of the Crown are vested in the federal government and are exercised by the commissi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government Of Canada
The Government of Canada (), formally His Majesty's Government (), is the body responsible for the federation, federal administration of Canada. The term ''Government of Canada'' refers specifically to the executive, which includes Minister of the Crown, ministers of the Crown (together in Cabinet of Canada, the Cabinet) and the Public Service of Canada, federal civil service (whom the Cabinet direct); it is Federal Identity Program, corporately branded as the ''Government of Canada''. There are over 100 departments and agencies, as well as over 300,000 persons employed in the Government of Canada. These institutions carry out the programs and enforce the laws established by the Parliament of Canada. The Structure of the Canadian federal government, federal government's organization and structure was established at Canadian Confederation, Confederation, through the ''Constitution Act, 1867'', wherein the Canadian Crown acts as the core, or "the most basic building block", of its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lockout (industry)
A lockout is a strike action, work stoppage or denial of employment initiated by the management of a company during a labor dispute. In contrast to a strike action, strike, in which employees refuse to work, a lockout is initiated by employers or industry owners. Lockouts are usually implemented by simply refusing to admit employees onto company premises, and may include changing locks or hiring security guards for the premises. Other implementations include a fine (penalty), fine for showing up, or a simple refusal of clocking in on the time clock. For these reasons, lockouts are referred to as the antithesis of strikes. Lockouts are common in Major professional sports leagues in the United States and Canada, major league sports. In the United States and Canada, the NFL lockout, National Football League, MLB lockout, Major League Baseball, the NBA lockout, National Basketball Association, and the NHL lockout, National Hockey League have all experienced lockouts. Causes A lock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
