placer mining encyclopedia

Two Dragon mining camp

Two Dragon Camp was an isolated,.acre placer mining camp in the Camp Carson Historic Mining District, roughly twenty-one miles southwest of La Grande.Occupied for a twoto five-year period between, an estimated one hundred Chinese miners worked at the site at its peak of operation, constructing and fortifying existing ditches for the area's placer mining operations.

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Mining | Britannica.com

placer mining encyclopedia Mining, process of extracting useful minerals from the surface of the Earth, including the seas. A mineral, with a few exceptions, is an inorganic substance occurring in nature that has a definite chemical composition and distinctive physical properties or molecular structure.

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Placer Mining | Encyclopedia.com

Placer mining Placer deposits are collections of some mineral existing in discrete particles, mixed with sand, gravel, and other forms of eroded rock. Some of the minerals most commonly found in placer deposits are diamond, gold, platinum, magnetite, rutile, monazite, and cassiterite.

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Mining

This is called underground mining. Some mining, such as gold mining, is done in other ways. Gold can be mined by searching in the bed of a river or other stream of water to remove the flakes of gold. This is called panning or placer mining. A worker in a mine is called a miner. Underground mining is a dangerous job. Many mines have accidents ...

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Placer Mining | ONE

Placer miners moved from one place to the next. They used inexpensive, movable wooden boxes called rockers and long toms to wash sand away from gold. The gold pan, a clich&#; of placer mining, had a limited capacity and was only for sampling sites during prospecting.

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Placer mining | Article about placer mining by The Free ...

POM is a mining operation owning a production interest in certain placer mining claims containing gold, silver and other precious metals in addition to rare earth elements located approximatelykilometers northeast of Vancouver in the lower Lillooet River Valley.

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Mining | ONE

Placer miners moved from one place to the next. They used inexpensive, movable wooden boxes called rockers and long toms to wash sand away from gold. The gold pan, a clich&#; of placer mining, had a limited capacity and was only for sampling sites during prospecting. placer mining encyclopedia

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Placer miner | Article about placer miner by The Free ...

Back then, placer miners and hard rock prospectors relied on the underground samples to dictate where future mining operations would be located. Service companies support mining industry: as the state's gold mining industry has grown, so has the demand for related services-geologists, environmental research firms, equipment suppliers, drillers ...

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Surface Mining Methods and Equipment

&#;Encyclopedia of Life Support Systems (EOLSS) SURFACE MINING METHODS AND EQUIPMENT ... Placer mining is intended for the recovery of heavy minerals from alluvial or placer deposits, using water to excavate, transport, and/or concentr ate minerals. ... Surface Mining Methods and EquipmentJ. Yamatomi and S. Okubo

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Mining Facts for Kids

placer mining encyclopedia Mining is the process of mining stuff out of the ground. Any material that cannot be grown must be mined. Mining things from the ground is called extraction. Mining can include extraction of metals and minerals, like coal, diamond, gold, silver, platinum, copper, tin and iron. Mining can also include other things like oil and natural gas.

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placer gold electro mining placer mining encyclopedia

Placer miningWikipedia, the free encyclopedia. Placer mining is frequently used for precious metal deposits (particularly gold) and gemstones, both of which …

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Placer mining placer mining encyclopedia

Placer mining continues in many areas of the world as a source of diamonds, industrial minerals and metals, gems (in Myanmar and Sri Lanka), platinum, and of gold (in the Yukon, Alaska and British Columbia). Methods. The simplest technique to extract gold from placer ore is panning.

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Placer mining | Wiki | Everipedia

Placer mining ( /ˈpl&#;sər/ or /ˈpleɪsər/ ) is the mining of stream bed ( alluvial) deposits for minerals. This may be done by open-pit (also called open-cast mining ) or by various surface excavating equipment or tunnelling equipment.

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sand mining encyclopedia

 &#;&#;mining Encyclopedia.com. ... In placer mining no excavation is involved; instead, gravel, sand, or talus (rock. Contact Us. Mining ironsands Iron and steel Te Ara Encyclopedia of New . This video clip shows how ironsands at Waikato North Head are mined by machine. This is the beginning of the process to produce steel at the Glenbrook ...

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Placer mining

Placer mining, ancient method of using water to excavate, transport, concentrate, and recover heavy minerals from alluvial or placer deposits.Examples of deposits mined by means of this technique are the gold-bearing sands and gravel that settle out from rapidly moving streams and rivers at points where the current slows down.

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Placer County, California Facts for Kids

Miners washed away the gravel, leaving the heavier gold, in a process known as "placer mining". History. Gold mining was a major industry through thes, but gradually the new residents turned to farming the fertile foothill soil, harvesting timber and working for the Southern Pacific Railroad.

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Gold Mining and its Environmental Impacts

Gold Mining and its Environmental Impacts ABSTRACT This paper examines the economical, agricultural, and environmental effects of ... Gold Rush included placer mining, hydraulic mining, and lode mining. The promise of ... (Encarta EncyclopediaGold website). It is “the most malleable and ductile metal” and

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Placer mining

Define placer mining. placer mining synonyms, placer mining pronunciation, placer mining translation, English dictionary definition of placer mining. n. The obtaining of minerals from placers by washing or dredging. placer miner n. Noun. placer miningmining valuable minerals from a placer … placer mining encyclopedia

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What are the main methods of mining? | American ...

Placer mining is used to sift out valuable metals from sediments in river channels, beach sands, or other environments. In-situ mining, which is primarily used in mining uranium, involves dissolving the mineral resource in place then processing it at the surface without moving rock from the ground.

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Hanging Flume | Articles | Colorado Encyclopedia

The hanging flume was built betweenby the English-owned Montrose Placer Mining Company, for the purpose of furnishing water for hydraulic mining at the Lone Tree Placer Mine along the banks of the Dolores River.

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Talk:Placer mining

This article is within the scope of WikiProject Mining, a collaborative project to organize and improve articles related to mining and mineral industries. If you would like to participate, you can edit the attached article, or visit the project page, where you can see a list of open tasks, join in the discussion, or join the project. Start This article has been rated as Start-Class on the ...

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Placer County, California Facts for Kids

Miners washed away the gravel, leaving the heavier gold, in a process known as "placer mining". History. Gold mining was a major industry through thes, but gradually the new residents turned to farming the fertile foothill soil, harvesting timber and working for the Southern Pacific Railroad.

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Ah Hee Diggings (Chinese Walls)

The Ah Hee Diggings, also called the Chinese Walls, are sixty acres of hand-stacked, winding rock walls constructed of placer mine tailings. The walls were built by Chinese miners who worked gold-mining claims for the Ah Hee Placer Mining Company along a five-mile stretch of …

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placer mineral processing encyclopedia

placer mineral processing encyclopedia placer mineral processing encyclopedia Placer mining . Britannica . Placer mining, ancient method of using water to excavate, transport, concentrate, and recover heavy minerals from alluvial or placer deposits.

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Gold mining Rocker box (cradle)

Collier's New Encyclopedia fromdefines this device as a mechanical contrivance used in placer mining, consisting of a box on rockers and moved by hand, used for washing out the gold-bearing soil.

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Commercial Placer Mining Equipment placer mining encyclopedia

Commercial placer mine operators can afford the expense, and need the capability of larger equipment that is beyond the typical workings of the small operator or individual prospectorthis level of financial capacity is required to mine on a commercial scale.

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Gold Rush | New Georgia Encyclopedia

great majority of this multitude was directly involved in the search for gold. With pan and shovel, they roamed up and down the valleys and hollows, looking for a promising spot. These early miners were engaged in what they called "deposit" mining, generally known as placer mining.

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Placer mining placer mining encyclopedia

Placer mining Article By: Taylor, Danny L. Department of Mining and Mettalurgical Engineering, Mackay School of Earth Sciences and Engineering, University of Nevada, Reno, Nevada.

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placer mining | Encyclopedia.com

Pick a style below, and copy the text for your bibliography. Encyclopedia.com gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA). Within the ... placer mining encyclopedia

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Mining

Placer mining (pronounced "plass-er" mining): It involves the use of water, usually under pressure, to move and separate the valuable material from soil and rock in the deposit. Placer mining became famous in North America during the California and Klondike gold rushes.

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placer mining | FactMonster

Kidspiration Videos. Interviews with leading professionals by kids and for kids!

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