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Placer Gold Mining Trommel Blue Ribbon Mine Alaska , United States
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Placer may refer to one of the following: *Placer deposit *Placer sheep * Placer mining *Placer (geography), a submerged bank or reef. * Placer, rugby league football role. * Placer, a job title in the Pottery industry. Geographical names: * Placer, Masbate, Philippines * Placer, Surigao del Norte, Philippines * Placer, former name of Loomis, California * Placer County, California Placer County ( ; Spanish for "sand deposit"), officially the County of Placer, is a county in the U.S. state of California. As of the 2020 census, the population was 404,739. The county seat is Auburn. Placer County is included in the Gre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer Deposit
In geology, a placer deposit or placer is an accumulation of valuable minerals formed by gravity separation from a specific source rock during sedimentary processes. The name is from the Spanish word ''placer'', meaning "alluvial sand". Placer mining is an important source of gold, and was the main technique used in the early years of many gold rushes, including the California Gold Rush. Types of placer deposits include alluvium, eluvium, beach placers, aeolian placers and paleo-placers. Placer materials must be both dense and resistant to weathering processes. To accumulate in placers, mineral particles must have a specific gravity above 2.58. Placer environments typically contain black sand, a conspicuous shiny black mixture of iron oxides, mostly magnetite with variable amounts of ilmenite and hematite. Valuable mineral components often occurring with black sands are monazite, rutile, zircon, chromite, wolframite, and cassiterite. Early mining operations were likely a result ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer Sheep
The raising of domestic sheep has occurred in nearly every inhabited part of the globe, and the variations in cultures and languages which have kept sheep has produced a vast lexicon of unique terminology used to describe sheep husbandry. Terms Below are a few of the more common terms. B, C *Backliner – an externally applied medicine, applied along the backline of a freshly shorn sheep to control lice or other parasites. In the British Isles called ''pour-on''. *Bale – a wool pack containing a specified weight of pressed wool as regulated by industry authorities. *Band – a flock with a large number of sheep, generally 1000, which graze on rangeland. *Bell sheep – a sheep (usually a rough, wrinkly one) caught by a shearer, just before the end of a shearing run.Wilkes, G. A., ''A Dictionary of Australian Colloquialisms'', Sydney University Press, N.S.W., 1978, *Bellwether – originally an experienced wether given a bell to lead a flock; now mainly used figuratively for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer Mining
Placer mining () is the mining of stream bed (Alluvium, alluvial) deposits for minerals. This may be done by open-pit mining, open-pit (also called open-cast mining) or by various surface excavating equipment or tunneling equipment. Placer mining is frequently used for precious metal deposits (particularly gold) and gemstones, both of which are often found in Alluvium, alluvial deposits—deposits of sand and gravel in modern or ancient stream beds, or occasionally glacial deposits. The metal or gemstones, having been moved by stream flow from an original source such as a vein, are typically only a minuscule portion of the total deposit. Since gems and heavy metals like gold are considerably denser than sand, they tend to accumulate at the base of placer deposits. Placer deposits can be as young as a few years old, such as the Canadian Queen Charlotte beach gold placer deposits, or billions of years old like the Elliot Lake uranium paleoplacer within the Huronian Supergroup i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer (geography)
Placer ( pt, parcel or ''pracel'') is a term used by Portuguese discoveries, Portuguese and list of conquistadors, Spanish navigators and cartographers to refer to a certain kind of submerged ocean bank, bank or reef. Commonly the bottom of such a reef is sandy, but there are some where the bottom is muddy or stoney. Although most reefs designated as placer are flat and shallow, exceptionally there are some that do not share those characteristics and are known as ''placer acantilado''. A placer usually provides an anchorage (maritime), anchorage for seagoing vessels. Etymology The word placer derives from the Spanish ''placer'', meaning shoal or alluvial/sand deposit, from ''plassa'' (place) from Medieval Latin ''placea'' (place) the origin word for "place" and "plaza" in English. The word in Spanish is thus derived from placea and refers directly to an alluvial or glacial deposit of sand or gravel. Spanish navigator and explorer Pedro Sarmiento de Gamboa commented that ''place ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Rugby League Terms
This list of rugby league terms is a general glossary of the terminology used in the sport of rugby league football. The sport has accrued a considerable amount of jargon to describe aspects of the game. Many terms originate from the Laws of the Game. A number of aspects of the game have more than one term that refers to them. Different terms have become popularly used to describe an aspect of the game in different places with notable differences between the northern and southern hemispheres. Where words in a sentence are also defined elsewhere in this article, they appear in italics. 0–9 : Every time a player is tackled, all defenders, apart from a maximum of two markers, have to retreat 10 metres from the play-the-ball area. : A player selected as a back-up to the official 17 man squad for a game. The 18th man usually warms up with the team prior to a match and may be called into the team if one of the 17 players is injured or ill prior to the start of the match. The term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bottle Oven
A bottle oven or bottle kiln is a type of kiln. The word 'bottle' refers to the shape of the structure and not to the kiln's products, which are usually pottery, not glass. Bottle kilns were typical of the industrial landscape of Stoke-on-Trent, where nearly 50 are preserved as listed buildings. They were mostly built in the later 18th and the 19th centuries, although the surviving ones include examples from the 20th century. Their association with Stoke-on-Trent reflects the fact that the British ceramic industry was mainly based in that city. Bottle kilns are found in other locations in England; for example for Coalport porcelain, and the Fulham Pottery in London. Abroad they can be found at the Monastery of Santa Maria de las Cuevas. Despite being very inefficient (supposedly 70% of the energy of the fuel was wasted), bottle kilns were constructed until the mid-twentieth century, after which they were replaced by other types of kiln, as the industry ceased to be coal-fired. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer, Masbate
Placer, officially the Municipality of Placer, is a 2nd class municipality in the province of Masbate, Philippines. According to the 2020 census, it has a population of 56,340 people. By virtue of Republic Act No. 292, passed on June 16, 1948, the barrio of Placer was constituted as its own municipality, separate from Cataingan. At the time of its creation, Placer included the entire present-day municipality of Esperanza, which was then a barrio of Placer (its largest barrio). It is one of the only four municipalities in Masbate which is dominantly Cebuano-speaking, the other being the adjacent municipalities of Esperanza; Esperanza separated from Placer in 1959., Pio V. Corpuz, and Cawayan. Geography Barangays Placer is politically subdivided into 35 barangays. Climate Demographics In the 2020 census, the population of Placer, Masbate, was 56,340 people, with a density of . Economy References External links * Philippine Standard Geographic Code The Philip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer, Surigao Del Norte
Placer, officially the Municipality of Placer ( Surigaonon: Lungsod nan Placer; tl, Bayan ng Placer), is a 4th class municipality in the province of Surigao del Norte, Philippines. According to the 2020 census, it has a population of 29,616 people. History In 1850, the town was founded by Captain Felipe Custodio and Capitan Luis Patino. It was named "''Placer''" (Spanish for "pleasure" or "delight") by Custodio in reference to the happiness derived from local gold mining, as well as the abundant fish and rice harvests. In 1860, this name was officially approved. In 1930, the municipality lost some of its territory when the Municipality of Mainit was formed, and again in 1947, when the Municipality of Tagana-an was established. World War II After the Japanese obtained the surrender of American and Filipino troops on Mindanao in May and June 1942, Placer, along with much of Mindanao, remained free of Japanese occupation. In late September 1943, Japanese troops landed and occup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loomis, California
Loomis (formerly, Pine, Pino, Smithville, and Placer) is an incorporated town in Placer County, California, United States. It is part of the Sacramento–Arden-Arcade– Roseville Metropolitan Statistical Area. The town's population was reported as 6,836 in the 2020 United States Census. It shares borders with the city of Rocklin and the Census-Designated Places Penryn and Granite Bay. History The Placer post office opened on the site in 1861, changed its name to Smithville in 1862, then changed it to Pino in 1869, and in 1890 the Southern Pacific Railroad finally decided on Loomis. The railroad and Post Office found that Pino was confused with the town of Reno, hence the name change to Loomis. The name Smithville honors L.G. Smith, who was one of the town's most prominent leaders. Loomis takes its name from one of the town's pioneers, James Loomis. At one time, James Loomis was the whole town—saloon keeper, railroad agent, express agent, and postmaster. In the early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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