|
Mount Edziza Recreation Area
The Mount Edziza Recreation Area was a recreation area in Cassiar Land District of northwestern British Columbia, Canada, located southeast of the community of Telegraph Creek. It was established on 27 February 1972 along with Mount Edziza Provincial Park. Initially, the recreation area formed a buffer zone around much of the provincial park. About of the Mount Edziza Recreation Area was annexed into Mount Edziza Provincial Park on 21 March 1989, greatly reducing its size to around . By this time only a small portion of the recreation area was located east of Mount Edziza. On 19 March 2003, the Mount Edziza Recreation Area was disestablished to allow resource development on the Spectrum mineral claims. Mineral exploration The Spectrum or Red Dog property consisted of a block of mineral claims that covered quartz, pyrite and chalcopyrite mineralization in fractured sedimentary and volcanic rocks of Late Triassic age in the Mount Edziza Recreation Area. Commodities on the pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassiar Land District
Cassiar Land District is a cadastral survey subdivision of the province of British Columbia, Canada, created with rest of those on Mainland British Columbia via the Lands Act of the Colony of British Columbia (1858–1866), Colony of British Columbia in 1860. The British Columbia government's BC Names system, a subdivision of GeoBC, defines a land district as "a territorial division with legally defined boundaries for administrative purposes". All land titles and surveys use the Land District system as the primary point of reference, and entries in BC Names for placenames and geographical objects are so listed. Description Cassiar Land District is one of the two northernmost of the province's Land Districts, the other being Peace River Land District to its east, which covers the northeastern portion of the province adjacent to the Northwest Territories and Alberta. Its western boundary is the BC-Alaska Boundary, its northern the boundary with Yukon at the 60th parallel north. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Triassic
The Late Triassic is the third and final epoch (geology), epoch of the Triassic geologic time scale, Period in the geologic time scale, spanning the time between annum, Ma and Ma (million years ago). It is preceded by the Middle Triassic Epoch and followed by the Early Jurassic Epoch. The corresponding series (stratigraphy), series of rock beds is known as the Upper Triassic. The Late Triassic is divided into the Carnian, Norian and Rhaetian Geologic time scale, ages. Many of the first dinosaurs evolved during the Late Triassic, including ''Plateosaurus'', ''Coelophysis'', ''Herrerasaurus'', and ''Eoraptor''. The Triassic–Jurassic extinction event began during this epoch and is one of the five major mass extinction events of the Earth. Etymology The Triassic was named in 1834 by Friedrich August von Namoh, Friedrich von Alberti, after a succession of three distinct rock layers (Greek meaning 'triad') that are widespread in southern Germany: the lower Buntsandstein (colourful ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protected Areas Of British Columbia
The following list of protected areas of British Columbia includes all federally and provincially protected areas within the Canadian province of British Columbia. As of 2015, approximately 15.46% of the province's land area and 3.17% of the province's waters are protected. International recognition Three UNESCO World Heritage Sites are entirely or partially located in British Columbia: * Canadian Rocky Mountain Parks (shared with Alberta) * Kluane / Wrangell–St. Elias / Glacier Bay / Tatshenshini-Alsek (shared with Yukon and Alaska, United States) * SG̱ang Gwaay Two UNESCO-MAB Biosphere Reserves are in British Columbia: *Clayoquot Sound *Mount Arrowsmith Federally protected areas Parks Canada Seven National Parks of Canada are located in British Columbia, more than any other province or territory: * Glacier National Park *Gulf Islands National Park Reserve * Gwaii Haanas National Park Reserve * Kootenay National Park * Mount Revelstoke National Park *Pacific Rim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tahltan Highland
The Tahltan Highland is an upland area of plateau and relatively lower mountain ranges in British Columbia, Canada, lying east of the Boundary Ranges and south of the Inklin River (the east fork of the Taku River). Its eastern boundary is formed by the Sheslay River and the Little Tuya River, while its southern boundary extends across the Stikine River and its Grand Canyon The Grand Canyon is a steep-sided canyon carved by the Colorado River in Arizona, United States. The Grand Canyon is long, up to wide and attains a depth of over a mile (). The canyon and adjacent rim are contained within Grand Canyon Nati ... to include the Mount Edziza volcanic complex (which includes the Spectrum Range), and the Zagoddetchino massif. References *S. Holland. ''Landforms of British Columbia'', BC Government Department of Energy Mines and Resources (1976). * Stikine Country Stikine Plateau Plateaus of British Columbia {{BritishColumbiaInterior-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tenh Dẕetle Conservancy
The Tenh Dẕetle Conservancy () is a conservancy located in Cassiar Land District of British Columbia, Canada. It was established as the Mount Edziza Conservancy on 30 March 2021 and then renamed to its current form on 31 January 2022. Geography The conservancy is located east of Mount Edziza and northwest of Kakiddi Lake. It covers an area of approximately along the eastern boundary of Mount Edziza Provincial Park. Ecology The Tenh Dẕetle Conservancy protects habitat for a variety of mammal species such as mountain goats, grizzly bears, caribou and moose. Etymology Tenh Dẕetle is the Tahltan name for Mount Edziza, meaning Ice Mountain in the Tahltan language Tahltan, Tāłtān, also called Tałtan ẕāke ("Tahltan people language"), dah dẕāhge ("our language") or didene keh ("this people’s way") is a poorly documented and endangered Northern Athabaskan language spoken by 235 of the Tahltan, Tah .... References {{DEFAULTSORT:Tenh Dzetle Conservancy Tahlta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Edziza Volcanic Complex
The Mount Edziza volcanic complex ( ; abbreviated MEVC) is a group of volcanoes and associated lava flows in northwestern British Columbia, Canada. Located on the Tahltan Highland, it is southeast of Telegraph Creek and southwest of Dease Lake. The complex encompasses a broad, steep-sided lava plateau that extends over . Its highest summit is in elevation, making the MEVC the highest of four large complexes in an extensive north–south trending volcanic region. It is obscured by an ice cap characterized by several Glacier morphology#Outlet glaciers, outlet glaciers that stretch out to lower altitudes. The MEVC consists of several types of volcanoes, including stratovolcanoes, shield volcanoes, cinder cones and lava domes. These volcanoes have formed over the last 7.5 million years during five cycles of magmatic activity which spanned four geologic epochs. Volcanic eruptions during these magmatic cycles produced a wide variety of volcanic rocks that comprise 13 geol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underground Mining (hard Rock)
Underground hard-rock mining refers to various underground mining techniques used to excavate "hard" minerals, usually those containing metals, such as ore containing gold, silver, iron, copper, zinc, nickel, tin, and lead. It also involves the same techniques used to excavate ores of gems, such as diamonds and rubies. Soft-rock mining refers to the excavation of softer minerals, such as salt, coal, and oil sands. Mine access Underground access Accessing underground ore can be achieved via a decline (ramp), inclined vertical shaft or adit. *Declines can be a spiral tunnel which circles either the flank of the deposit or circles around the deposit. The decline begins with a box cut, which is the portal to the surface. Depending on the amount of overburden and quality of bedrock, a galvanized steel culvert may be required for safety purposes. They may also be started into the wall of an open cut mine. *Shafts are vertical excavations sunk adjacent to an ore body. Shafts a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imperial Oil
Imperial Oil Limited () is a Canadian petroleum company. It is Canada's second-largest integrated oil company. It is majority-owned by American oil company ExxonMobil, with a 69.6% ownership stake in the company. It is a producer of crude oil, diluted bitumen, and natural gas. Imperial Oil is one of Canada's major petroleum refiners and petrochemical producers. It supplies Esso-brand service stations. Imperial owns 25% of Syncrude, which is one of the world's largest oil sands operations. It also has holdings in the Alberta Oil Sands, and operates the Kearl Oil Sands mining operation with ExxonMobil. Imperial Oil is headquartered in Calgary, Alberta. It was based in Toronto, Ontario, until 2005. Most of Imperial's production is from its natural resource holdings in the Alberta oil sands and the Norman Wells oil field in the Northwest Territories. Imperial Oil was ranked 34th in the Arctic Environmental Responsibility Index (AERI) for 2021 out of 120 mining, oil, and g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc
Zinc is a chemical element; it has symbol Zn and atomic number 30. It 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. 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 second most abundant trace metal in humans after iron, an import ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver
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] |
Lead
Lead () is a chemical element; it has Chemical symbol, symbol Pb (from Latin ) and atomic number 82. It is a Heavy metal (elements), heavy metal that is density, denser than most common materials. Lead is Mohs scale, soft and Ductility, 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 nuclide, stable element and three of its isotopes are endpoints of major nuclear decay chains of heavier elements. Lead is a relatively unreactive post-transition metal. Its weak metallic character is illustrated by its Amphoterism, amphoteric nature; lead and lead oxides react with acids and base (chemistry), bases, and it tends to form covalent bonds. Lead compounds, 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
