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alluvial mining define

Alluvial mining - definition of alluvial mining by The ...

Mining for 'free' gold is called alluvial mining. Both government authorities and small-scale miners agree that alluvial mining is the most destructive to the environment. Meanwhile, these are people who have installed heavy machines (changfan) on water bodies and seriously doing alluvial mining without any

Alluvial mining Definition & Meaning | Dictionary

Alluvial mining definition at Dictionary, a free online dictionary with pronunciation, synonyms and translation. Look it up now!

Alluvial mining definition and meaning | Collins English ...

Alluvial mining definition: a method of extracting minerals by dredging alluvial deposits | Meaning, pronunciation, translations and examples

Alluvial mining | Article about alluvial mining by The ...

These are seen as the way to meet the increasing need for low cost, easily transported dredges that are quick to bring into production and efficient in operation, being specifically designed for alluvial mining. The standard range of this PP Series includes dredges of 100-, 175- and 250-litre bucket capacity with digging depths up to 15 m.

Alluvial | Definition of Alluvial by Merriam-Webster

Alluvial definition is - relating to, composed of, or found in alluvium. How to use alluvial in a sentence.

alluvial mining definition | English definition dictionary ...

alluvial. adj. 1 of or relating to alluvium. n. 2 another name for → alluvium. 3 (Austral. and N.Z.) alluvium containing any heavy mineral, esp. gold. alluvial fan , cone. n a fan-shaped accumulation of silt, sand, gravel, and boulders deposited by fast-flowing mountain

Alluvial Definition & Meaning | Dictionary

Dec 10, 2014 · Alluvial definition, of or relating to alluvium. See more.

Alluvial - definition of alluvial by The Free Dictionary

Define alluvial. alluvial synonyms, alluvial pronunciation, alluvial translation, English dictionary definition of alluvial. adj. Of, relating to, or found in alluvium: alluvial soil; alluvial gold. American Heritage® Dictionary of the English Language, Fifth Edition.

Alluvial groundwater Definition | Law Insider

Define Alluvial groundwater. means water located below the land surface within the Quaternary hydrostratigraphic unit that borders or underlies major perennial and intermittent streams in the Tongue River and Rosebud Creek basins. This unit is composed of unconsolidated alluvial deposits of clay, silt, sand, and gravel. For the purposes of this Compact, all other water below the land surface ...

ALLUVIAL | meaning in the Cambridge English Dictionary

alluvial definition: 1. made up of sand and earth left by rivers, floods, etc.: 2. made up of sand and earth left by. Learn more.

Alluvial Diamond Mining - Gathering Diamonds On The Surface

Alluvial Mining. Alluvial diamond mining is an above ground form of mining which concentrates on gathering diamonds on the surface. This is the most traditional and oldest mining method in the diamond industry, which originated hundreds of years

Alluvial Definition & Meaning | Dictionary

Dec 10, 2014 · Alluvial definition, of or relating to alluvium. See more.

Alluvial Mining: Gold, Diamonds and Platinum | Is it ...

Jun 07, 2018 · Alluvial mining for gold dates back a long time — the Romans used alluvial mining to produce gold, and in the 19th and 20th centuries, alluvial

Alluvial definition and meaning | Collins English Dictionary

Alluvial definition: Alluvial soils are soils which consist of earth and sand left behind on land which has... | Meaning, pronunciation, translations and examples. ... Of the two main methods of extracting diamonds (kimberlite pipe mining and alluvial mining), pipe mining has the larger impact.

methods of alluvial mining - aproject.pl

Alluvial Mining: Gold, Diamonds and Platinum. Alluvial mining is an old technology, but it’s still fairly common todaySome mining companies use the technique, though it’s more often a source of income for individual laborers in areas. 【24/7 Live Chat】 Alluvial mining definition and meaning

ALLUVIAL | meaning in the Cambridge English Dictionary

alluvial definition: 1. made up of sand and earth left by rivers, floods, etc.: 2. made up of sand and earth left by. Learn more.

Alluvial Gold Explained - To Help You Find Gold

Alluvial Gold (Deposited by water movement) and Eluvial gold (disintegration of rock at the site where it originates - not there through water movement) are essentially primary gold broken down by weathering and erosion and transported by gravity or water movement over many millenia of geological time.

Geological Features Of Alluvial Placers

Alluvial Mining-E. MacDonald 1983-10-20 Covers placer deposits, mining and processing world wide. Geology of Tertiary and Quaternary Gold-bearing Placers in the Cariboo Region, British Columbia (93A, B, G, H)-British Columbia.

Glossary of Landform and Geologic Terms

alluvial fan – A low, outspread mass of loose materials and/or rock material, commonly with gentle slopes, shaped like an open fan or a segment of a cone, deposited by a stream (best expressed in semiarid regions) at the ... surficial subsidence associated with

Alluvial financial definition of alluvial

In late April 2010, NAR completed the acquisition of the entire equity interests in Dadizi Yuan LLC ("Dadi") through an indirect wholly-owned subsidiary, Dadi holds the mining and exploration licences for two alluvial gold mines in Mongolia, which have a total mining area of approximately 2,003 hectares (representing approximately 20.03 square kilometers), with measured gold reserves of 324.7 ...

Alluvial | Article about alluvial by The Free Dictionary

Obtala Resources PLC (Obtala) (OBT.LN), a UK-based resources investment and development company, has commenced a community mining scheme within the mining licences hosting the alluvial diamond mining operation at Konoma.

Alluvial - definition and meaning - Wordnik

The Northern Mississippi Alluvial Plain within Tennessee is a relatively flat region of Quaternary alluvial deposits of sand, silt, clay, and gravel. Ecoregions of Tennessee (EPA) Alluvial diamond mining remains the major source of hard currency earnings accounting for nearly half of Sierra Leone's exports.

alluvial area definition | English definition dictionary ...

alluvial area translation in English - English Reverso dictionary, see also 'alluvial fan',alluvial mining',alluvial fan',alluvial mining', examples, definition, conjugation

Alluvial soil | definition of alluvial soil by Medical ...

The relationship of baldcypress buttress volume to aboveground tree volume and average crown diameter, water depth at tree base at sampling time, estimated maximum age of dominant trees, presence of regeneration at the site and soil type (representing soil flooding frequency class) was described by the equation ln(V)= -1.37 + 0.05*C + 1.99*W + 1.92*A + 2.2*R + 3.10 STNA + 1.62 STA,

Alluvial and Placer Mineral Deposits | Geology for Investors

Aug 05, 2013 · Alluvial mining is a little different; you can work a gold claim with cheap gear, and you can learn the skills involved in a few hours. Placer deposits are also the ultimate “path finder” deposits – if a valuable commodity is available on the surface in

Geological Features Of Alluvial Placers

Alluvial Mining-E. MacDonald 1983-10-20 Covers placer deposits, mining and processing world wide. Geology of Tertiary and Quaternary Gold-bearing Placers in the Cariboo Region, British Columbia (93A, B, G, H)-British Columbia.

Alluvial | Article about alluvial by The Free Dictionary

Obtala Resources PLC (Obtala) (OBT.LN), a UK-based resources investment and development company, has commenced a community mining scheme within the mining licences hosting the alluvial diamond mining operation at Konoma.

What does placer mining mean? - definitions

Definition of placer mining in the Definitions.net dictionary. Meaning of placer mining. What does placer mining mean? ... Placer mining is the mining of alluvial deposits for minerals. This may be done by open-pit or by various surface excavating equipment or tunneling equipment. Placer mining is frequently used for precious metal deposits and ...

What Is Alluvial Gold? - Manhattan Gold & Silver

Mar 03, 2011 · Alluvial is a term that refers to soil sediments and the various sand, silt, gravel, clay or other deposited matter left behind by flowing water. “Alluvial gold” refers to the type of gold dust found in that kind of soil. When the beds of rivers or streams are scooped and panned for gold dust, the product is referred to as alluvial gold.. Panning for gold is one of the oldest ways to ...

Definition of alluvial flat

Definition of alluvial flat. A small alluvial plain bordering a river, on which alluvium is deposited during floods. Bolivia. Compare with: alluvial plain. Click here to see list of references, authorities, sources and geographical terms as used in this glossary. Prev: alluvial fan Next: alluvial mining Glossary Search .

Alluvial - definition and meaning - Wordnik

The Northern Mississippi Alluvial Plain within Tennessee is a relatively flat region of Quaternary alluvial deposits of sand, silt, clay, and gravel. Ecoregions of Tennessee (EPA) Alluvial diamond mining remains the major source of hard currency earnings accounting for nearly half of Sierra Leone's exports.

Glossary of Mining Terms - SEC

Bulk mining - Any large-scale, mechanized method of mining involving many thousands of tonnes of ore being brought to surface per day. Bulk sample - A large sample of mineralized rock, frequently hundreds of tonnes, selected in such a manner as to be representative of the potential orebody being sampled.

The Four Main Methods of Mining - OreFlow

Dec 04, 2019 · Placer mining is a method of mining that uses water to recover precious metals from placer or alluvial deposits. Examples of deposits mined by placer mining are gold-bearing sands and gravel that has settled from rapidly moving streams to slower, more stable currents.

Glossary of Mining Terms – Legends of America

Glossary of terms used in the American Mining Industry. Dry Diggings – Earth excavated in the summer and held to be washed in winter when water was more plentiful.. Dry Washing – Fine soil blown away, leaving the gold.. Drywasher – A common desert mining tool similar to a highbanker but doesn’t need water.It operates by the use of wind. The light junk material is blown off the top of ...

Alluvial apron Definition | Law Insider

Define Alluvial apron. means an area formed by alluvial deposits with essentially the same characteristics as alluvial fans but generally in smaller watersheds where the flow lines tend to be straighter. Alluvial aprons are designated on the Borrego Valley alluvial fans map.

Alluvial Soils - an overview | ScienceDirect Topics

Alluvial soil is one of the best soils, requiring the least water due to its high porosity. The consistency of alluvial soil ranges from drift sand and rich, loamy soil to silt clays. India is one of the richest countries in the world in terms of alluvial soil, which covers more than 46% of its total land area.

Placer mining | Britannica

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.

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 others.