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Gunnar Mine
__NOTOC__ The Gunnar Mine was a uranium mine in northern Saskatchewan, Canada located around southwest of the community of Uranium City, and approximately 600 km north of Saskatoon. The mine was situated on the Crackingstone Peninsula on the north shore of Lake Athabasca in the Beaverlodge Uranium District. The Gunnar deposit was discovered in July 1952, and the mine operated as both an open pit (1955–1961) and underground (1957–1963). The mine ceased production in 1963. The Gunnar Mine headframe was demolished on August 4, 2011 but not decommissioning in any meaningful way. As of 2020, the mine was being decommissioned by the Saskatchewan Research Council who have a license to operate the site until 2024. In 2019 the Canadian Nuclear Safety Commission inspection found overall good performance, but some errors with regards to controlling radioactive zones and labeling radioactive materials. These non-compliant acts were descried as having "low safety significance," bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Athabasca Basin
The Athabasca Basin is a region in the Canadian Shield of northern Saskatchewan and Alberta, Canada. It is best known as the world's leading source of high-grade uranium and currently supplies about 20% of the world's uranium. The basin is located just to the south of Lake Athabasca, west of Wollaston Lake, and encloses almost all of Cree Lake. It covers about in Saskatchewan and a small portion of Alberta. The surface of the basin consists of main sandstone sediment varying from in depth. The uranium ore is mostly found at the base of this sandstone, at the point where it meets the basement. On the northern and eastern edges are the communities of Fort Chipewyan in Alberta and Camsell Portage, Stony Rapids, Fond du Lac, Black Lake and Wollaston Lake in Saskatchewan. Much of the Athabasca Basin is within the migratory range of the Beverly caribou herd a major source of sustenance for the Denesuline communities. Within the basin are the Athabasca Sand Dunes Provincia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gunnar Mine Geologic Map And Cross Section
Gunnar is a male first name of Nordic origin (''Gunnarr'' in Old Norse). The name Gunnar means fighter, soldier, and attacker, but mostly is referred to by the Viking saying which means Brave and Bold warrior (''gunnr'' "war" and ''arr'' "warrior"). King Gunnar was a prominent king of medieval literature such as the Middle High German epic poem, the Nibelungenlied, where King Gunnar and Queen Brynhildr hold their court at Worms. Gunder is a nordic variant, Günther is the modern German variant, and Gonario is the Italian version. Some people with the name Gunnar include: Gunnar Andersen *Gunnar Andersen (1890–1968), Norwegian football player and ski jumper *Gunnar Andersen (1909–1988), Norwegian ski jumper *Gunnar Aagaard Andersen (1919–1982), Danish sculptor, painter and designer **Gunnar Reiss-Andersen (1896–1964), Norwegian poet Gunnar Andersson *Johan Gunnar Andersson (1874–1960), Swedish archaeologist, paleontologist and geologist * Gunnar Andersson (1890– ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Mines In Canada
A surface, as the term is most generally used, is the outermost or uppermost layer of a physical object or space. It is the portion or region of the object that can first be perceived by an observer using the senses of sight and touch, and is the portion with which other materials first interact. The surface of an object is more than "a mere geometric solid", but is "filled with, spread over by, or suffused with perceivable qualities such as color and warmth". The concept of surface has been abstracted and formalized in mathematics, specifically in geometry. Depending on the properties on which the emphasis is given, there are several non equivalent such formalizations, that are all called ''surface'', sometimes with some qualifier, such as algebraic surface, smooth surface or fractal surface. The concept of surface and its mathematical abstraction are both widely used in physics, engineering, computer graphics, and many other disciplines, primarily in representing the surfaces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mines In Saskatchewan
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium Mines In Canada
Uranium is a chemical element with the symbol U and atomic number 92. It is a silvery-grey metal in the actinide series of the periodic table. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons. Uranium is weakly radioactive because all isotopes of uranium are unstable; the half-lives of its naturally occurring isotopes range between 159,200 years and 4.5 billion years. The most common isotopes in natural uranium are uranium-238 (which has 146 neutrons and accounts for over 99% of uranium on Earth) and uranium-235 (which has 143 neutrons). Uranium has the highest atomic weight of the primordially occurring elements. Its density is about 70% higher than that of lead, and slightly lower than that of gold or tungsten. It occurs naturally in low concentrations of a few parts per million in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. In nature, uranium is found as uranium-238 (99.2739–99.2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uranium Ore Deposits
Uranium ore deposits are economically recoverable concentrations of uranium within the Earth's crust. Uranium is one of the more common elements in the Earth's crust, being 40 times more common than silver and 500 times more common than gold. It can be found almost everywhere in rock, soil, rivers, and oceans. The challenge for commercial uranium extraction is to find those areas where the concentrations are adequate to form an economically viable deposit. The primary use for uranium obtained from mining is in fuel for nuclear reactors. Globally, the distribution of uranium ore deposits is widespread on all continents, with the largest deposits found in Australia, Kazakhstan, and Canada. To date, high-grade deposits are only found in the Athabasca Basin region of Canada. Uranium deposits are generally classified based on host rocks, structural setting, and mineralogy of the deposit. The most widely used classification scheme was developed by the International Atomic Energy Agen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lorado Mine
__NOTOC__ The Lorado Mine was a uranium mine in northern Saskatchewan, Canada located around south of the community of Uranium City, Saskatchewan in the Beaverlodge Uranium District. See also * Gunnar Mine *Eldorado, Saskatchewan *Uranium ore deposits Uranium ore deposits are economically recoverable concentrations of uranium within the Earth's crust. Uranium is one of the more common elements in the Earth's crust, being 40 times more common than silver and 500 times more common than gold. It ... References External links * * *{{cite web , url=http://www.saskcleans.ca/html/mine_sites/Lorado/index.cfm , publisher=Cleanup of Abandoned Northern Sites (CLEANS) , title= Lorado , accessdate=2009-10-25 Uranium mines in Canada Mines in Saskatchewan Underground mines in Canada Uranium City, Saskatchewan Division No. 18, Saskatchewan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eldorado, Saskatchewan
Eldorado is a former mining community turned ghost town located on Beaverlodge Lake in northern Saskatchewan, Canada. Its original name was Beaverlodge. Eldorado and nearby Uranium City are along Saskatchewan Highway 962, an isolated stretch of highway. History After uranium was discovered in the Beaverlodge District in 1946, Eldorado Mining and Refining established Eldorado as a community to house its miners, their families, and related workers. By 1951, the community of Eldorado had a population of 184. Eldorado Mining and Refining opened the Beaverlodge Mine in 1953. The Eldorado Company's major production came from the Fay-Ace-Verna mine shafts, mostly from uranium deposits located in the Archaen Tazin Group. The deposits are found within the footwall and hanging wall of the St. Louis fault. Eldorado had a one-room school that taught students through to grade six, after which they were transported to Uranium City. The first post office was established in 1953 with Jo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pitchblende
Uraninite, formerly pitchblende, is a radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO2 but because of oxidation typically contains variable proportions of U3O8. Radioactive decay of the uranium causes the mineral to contain oxides of lead and trace amounts of helium. It may also contain thorium and rare-earth elements. Overview Uraninite used to be known as pitchblende (from '' pitch'', because of its black color, and ''blende'', from ''blenden'' meaning "to deceive", a term used by German miners to denote minerals whose density suggested metal content, but whose exploitation, at the time they were named, was either unknown or not economically feasible). The mineral has been known at least since the 15th century from silver mines in the Ore Mountains, on the German/Czech border. The type locality is the historic mining and spa town known as Joachimsthal, the modern day Jáchymov, on the Czech side of the mountains, where F. E. Brückman ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gneiss
Gneiss ( ) is a common and widely distributed type of metamorphic rock. It is formed by high-temperature and high-pressure metamorphic processes acting on formations composed of igneous or sedimentary rocks. Gneiss forms at higher temperatures and pressures than schist. Gneiss nearly always shows a banded texture characterized by alternating darker and lighter colored bands and without a distinct cleavage. Gneisses are common in the ancient crust of continental shields. Some of the oldest rocks on Earth are gneisses, such as the Acasta Gneiss. Description Orthogneiss from the Czech Republic In traditional English and North American usage, a gneiss is a coarse-grained metamorphic rock showing compositional banding (gneissic banding) but poorly developed schistosity and indistinct cleavage. In other words, it is a metamorphic rock composed of mineral grains easily seen with the unaided eye, which form obvious compositional layers, but which has only a weak tendency to fracture ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Granitic
A granitoid is a generic term for a diverse category of coarse-grained igneous rocks that consist predominantly of quartz, plagioclase, and alkali feldspar. Granitoids range from plagioclase-rich tonalites to alkali-rich syenites and from quartz-poor monzonites to quartz-rich quartzolites. As only two of the three defining mineral groups (quartz, plagioclase, and alkali feldspar) need to be present for the rock to be called a granitoid, foid-bearing rocks, which predominantly contain feldspars but no quartz, are also granitoids. The terms ''granite'' and ''granitic rock'' are often used interchangeably for granitoids; however, granite is just one particular type of granitoid. Granitoids are diverse; no classification system for granitoids can give a complete and unique characterization of the origin, compositional evolution, and geodynamic environment for the genesis of a granitoid. Accordingly, multiple granitoid classification systems have been developed such as those based ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precambrian
The Precambrian (or Pre-Cambrian, sometimes abbreviated pꞒ, or Cryptozoic) is the earliest part of Earth's history, set before the current Phanerozoic Eon. The Precambrian is so named because it preceded the Cambrian, the first period of the Phanerozoic Eon, which is named after Cambria, the Latinised name for Wales, where rocks from this age were first studied. The Precambrian accounts for 88% of the Earth's geologic time. The Precambrian is an informal unit of geologic time, subdivided into three eons ( Hadean, Archean, Proterozoic) of the geologic time scale. It spans from the formation of Earth about 4.6 billion years ago ( Ga) to the beginning of the Cambrian Period, about million years ago ( Ma), when hard-shelled creatures first appeared in abundance. Overview Relatively little is known about the Precambrian, despite it making up roughly seven-eighths of the Earth's history, and what is known has largely been discovered from the 1960s onwards. The Precambrian fossil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
