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placer mining define

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

    2021-12-18 · There are four main mining methods: underground, open surface (pit), placer, and in-situ mining. Underground mines are more expensive and are often used to reach deeper deposits. Surface mines are typically used for more …

  • Placer mine

    Placer mine synonyms, Placer mine pronunciation, Placer mine translation, English dictionary definition of Placer mine. n. The obtaining of minerals from placers by washing or …

  • Placer Deposit

    11.2.1 Placer Mining. Placer deposits are loose unconsolidated and semi-consolidated materials. It forms by surface weathering, erosion of the primary rocks, transportation and concentration of valuable minerals. Small deposits of gold, tin, diamond, monazite, zircon, rutile and ilmenite are common example. These minerals are recovered by small ...

  • (PDF) PLACERS AND PLACER MINING

    Placer mining is a special open cut method for exploiting deposits of sand or gravel containing workable amounts of such valuable minerals. Native gold is the most important placer mineral, but ...

  • Placer Definition & Meaning

    placer: [noun] one that places: such as. one that deposits or arranges. one of the winners in a competition.

  • what is placer mining

    2018-6-17 · Placer mining is the mining of alluvial sediments for minerals. This may be through by open-pit (also known as open-cast mining) or by a variety of forms of tunneling into antique riverbeds. Excavation might be achieved using water pressure (hydraulic mining), layer digging out equipment or tunneling equipment.

  • Placer mining | definition of placer mining by Medical ...

    mining. (mi''ning) [ME] 1. The extraction of useful information from a database. Synonym: data mining. 2. The extraction from the earth of materials with industrial value, such as coal, silver, or gold. Miners are exposed to various occupational disorders, including respiratory diseases (e.g., pneumoconiosis), allergies, and traumatic injuries.

  • 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.

  • What does placer mining mean?

    Definition of placer mining in the Definitions dictionary. Meaning of placer mining. What does placer mining mean? Information and translations of placer mining in the most comprehensive dictionary definitions resource on the web.

  • Placer mining : definition of Placer mining and synonyms ...

    Placer mining ( / ˈ p l æ s ər / or / ˈ p l eɪ s ər /) [1] is the mining of alluvial deposits for minerals.This may be done by open-pit (also called open-cast mining) or by various surface excavating equipment or tunneling equipment.. The name is sometimes said to derive from Spanish placer, meaning "to please," (pleasure) because it is easy mining as compared with …

  • What Is Placer Mining? (with picture)

    Emma G. Placer mining is commonly used to recover gold. Placer mining is a group of mining methods that use water to separate valuable minerals or ores from the surrounding sediment. It can be used to recover platinum, tin, and …

  • EFFECTS OF PLACER MINING ON HYDROLOGIC

    2006-5-1 · * Define the effects of placer mining. * Review the available literature. * Provide alternative proposals for regulation of placer mining and suggest methodologies for meeting State and Federal pollution control guidelines. The Alaska Department of Environmental Conservation (DEC), pursuant with Section 208 of the Federal Water Pollution ...

  • What Is Placer Gold And How Much Is It Worth?

    2020-9-28 · Placer Mining vs. Lode Mining. Lode mining, also known as hard rock mining, is the process of extracting gold from traditional veins of ore that are embedded within rocks and other minerals. To extract gold from lode deposits, …

  • Cost Estimation Handbook for Small Placer Mines

    2016-3-11 · SECTION 1 .-PLACER MINE DESIGN The complete design of a placer mine involves the in- tegration of exploration, mining, processing, and sup- plemental systems for the efficient recovery of valuable minerals from an alluvial deposit. …

  • What is Placer Gold and How do You Find it ...

    2018-9-12 · How to Mine for Placer Gold . The first and most important step in mining placer gold is to find the deposit. If you find a placer gold deposit with …

  • Placer-mining Meaning | Best 2 Definitions of Placer-mining

    What does placer-mining mean? The obtaining of minerals from placers by washing or dredging. (noun)

  • Placer mining definition and meaning | Collins English ...

    2016-12-15 · Placer mining definition: mining of placer deposits by washing, dredging, or other hydraulic methods | Meaning, pronunciation, translations and examples

  • What is Placer Gold and How do You Find it ...

    2018-9-12 · How to Mine for Placer Gold . The first and most important step in mining placer gold is to find the deposit. If you find a placer gold deposit with considerable amounts of gold worth mining, then you need to find out if the area …

  • placer mining | Britannica

    2021-12-17 · 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 …

  • placer mining define

    placer mining define. Placer claims are defined as including all forms of deposit excepting veins of quartz or other rock inplace In other words every deposit not located with a lode claim should be appropriated by a placer location Placer claims where practicable are located by

  • placer deposit | geology | Britannica

    2021-12-18 · placer deposit, natural concentration of heavy minerals caused by the effect of gravity on moving particles.When heavy, stable minerals are freed from their matrix by weathering processes, they are slowly washed downslope into …

  • Placer

    Definition of placer in the Idioms Dictionary. placer phrase. What does placer expression mean? Definitions by the largest Idiom Dictionary. ... A111EG) (OTC: HMGLF) has secured an additional 963 acres (390 hectares) of lithium placer mining claims in Clayton Valley, Nevada through its Esmeralda Minerals US subsidiary, the company said.

  • Placer Claim | Mining Terms Dictionary | The Diggings™

    A mining claim located on the public domain for the purpose of placer mining. Under U.S. mining laws, mineral deposits not veins or lodes in place, are treated as placers so far as locating, holding, surveying, and patenting are concerned. Revised Statutes, see. 2331 (30 U.S.C., sec- …

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

    placer mining: extraction of solid mineral resources from the earth. These resources include ores, which contain commercially valuable amounts of metals, such as iron and aluminum; precious stones, such as diamonds; building stones, such as granite; and solid fuels, such as coal and.

  • Placer miner

    Define placer miner. placer miner synonyms, placer miner pronunciation, placer miner translation, English dictionary definition of placer miner. n. The obtaining of minerals from placers by washing or dredging. placer miner n.

  • Placer | Spanish to English Translation

    2 (deleite) pleasure. los placeres del ocio the pleasures of idleness; darse a los placeres to give o.s. over to pleasure. transitive verb. (agradar) to please. me place poder hacerlo I am glad to be able to do it. placer. 1 (Geología) (Minería) placer. 2 (Náutica) sandbank.

  • Pronouncing "Placer" in Mining – A Way with Words

    2018-10-20 · Placer mining is a method of extracting gold from alluvial deposits. You might guess that the word is pronounced with a long a, but used in this context, it''s actually a short vowel, rhyming with gasser.The term derives from a Spanish word for that kind of surface, and goes back to the same Latin root that gives us both plaza and place.This is part of a complete episode.

  • Placer mining Definition & Meaning

    Placer mining | Britannica

  • Placer mining Definition & Meaning

    placer mining: [noun] the process of extracting minerals from a placer especially by washing, dredging, or hydraulic mining.

  • Definitions: Mineral & Placer Titles

    means ore of metal and every natural substance that can be mined and that is either loose, or found in fragmentary or broken rock that is not talus rock and occurs in loose earth, gravel and sand, and includes rock or other materials from placer mine tailings, dumps and previously mined deposits of placer minerals, but does not include a mineral substance or the substances …

  • Placer Mining, Gold Mining, Mineral Mining, Mining ...

    2021-7-15 · Placer mining is the mining of alluvial sediments for minerals. This may be through by open-pit (also known as open-cast mining) or by a variety of forms of tunneling into antique riverbeds. Excavation might be achieved using water pressure (hydraulic mining), layer digging out equipment or tunneling equipment.

  • A Guide to the Four Main Methods of Mining

    2019-10-8 · Placer mining is generally done in riverbeds, sands or other sedimentary environments and involves sifting valuable materials from sediments. Famously, "panning for gold" can be part of the placer mining process. In placer …

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