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A general term that refers to a mass mining system where the extraction of the ore depends largely on the action of gravity. By removing a thin horizontal layer at the mining level of the ore column, using standard mining methods, the vertical support of the ore column above is removed and the ore then caves by gravity.
The process or business of extracting ore or minerals from the ground. 2. a. The process of digging under an enemy emplacement or fortification to... Minings - definition of minings by The Free Dictionary. ... Mining amp Quarrying the act, process, or industry of extracting coal, ores, etc, from the earth. 2.
the mines reserves of ore The biggest deposits of the metal ore in the world are to be found in the eastern Congo. Mercury is now extracted from its ores by a method that has been used for hundreds of years. The mountain massifs to the east of the Rh ne, however, were less rich in metal ores.
Metal ore mining market comprises the sale of metal ore and concentrates by several entities. Metal Ore Mining 2019 - Global Sales, Price, Revenue, Gross Margin and Market Share Forecast Report It is pleasing to see an increase in our reserves, with significant further upside expected as the majority of the high grade Area 5 resource has yet to ...
It will be largely bulk mining at a rate of 33-million tonnes of ore per year with a grade of 1.8 gt Au, producing 5.1 million g of Au per year 180,000 oz with a five-and-a-half-year mine life.
ore n. a metalliferous mineral or rock, especially one worth mining, 12c., a merger of Old English ora ore, unworked metal related to eor e earth see earth n. and cognate with Low German ur iron-containing ore, Dutch oer, Old Norse aurr gravel and Old English ar brass, copper, bronze, from Proto-Germanic ajiz-source also of Old Norse eir brass, copper, German ehern ...
Dictionary of Mining, Mineral, and Related Terms Acid Mine Water - Mine water that has free sulfuric acid, mostly due to the weathering of iron pyrites. Active workings - Any place in a mine where miners are usually necessary to work or travel and which are ventilated and inspected frequently.
The optical character of crystals belonging to the orthorhombic, monoclinic, and triclinic systems, which exhibit double refraction, but have two directions of single refraction and isotropy, i.e., two optic axes.
Nov 12, 2011 In mining usage, the term refers to a low-grade sedimentary iron ore with the iron minerals segregated in bands or sheets irregularly mingled with chert or fine-grained quartz. CF ironstone jaspilite.
Selective mining - The object of selective mining is to obtain a relatively highgrade mine product this usually entails the use of a much more expensive stoping system and high exploration and development costs in searching for and developing the separate bunches, stringers, lenses, and bands of ore.
May 04, 2018 For example, a 31 stripping ratio means that mining one cubic metre of ore will require mining three cubic metres of waste rock. Sulphide ore Sulphide ores are generally found hundreds of metres below surface, and generally require underground mining infrastructure. The main benefit to sulphide ores is that they can be concentrated using a ...
Glossary of Mining Terminology After Damp - Gasses resulting from underground combustion, normally carbon monoxide. This is a loose term implying any fatal gas in a mine after an explosion or fire. Air Shaft - A vertical opening into a mine for the passage of air. Airway - Any passage in a mine along which an air current moves. Some passages are
The ore dictionary is used for more than just ores and ingots. Many ingredients have their own ore dictionary entry, allowing multiple substitutes for a specific ingredient. Modifying the ore dictionary. Not satisfied with the contents that mods put into the ore dictionary Did some mod forget to add an item to the proper entry
ore, metal-bearing mineral mass that can be profitably mined. Nearly all rock deposits contain some metallic minerals, but in many cases the concentration of metal is too low to justify mining mining, extraction of solid mineral resources from the earth.
Define mine. mine synonyms, mine pronunciation, mine translation, English dictionary definition of mine. n. 1. a. A hole or tunnel dug into the earth from which ore or minerals are extracted.
ore definition 1. rock or soil from which metal can be obtained 2. rock or soil from which metal can be. Learn more.
What does mining mean The process or business of extracting ore or minerals from the ground. noun
Ore body definition is - a more or less solid mass of ore that may consist of low-grade as well as high-grade ore and that is of different character from the adjoining rock.
Jun 25, 2021 Mining definition Mining is the industry and activities connected with getting valuable or useful minerals... Meaning, pronunciation, translations and examples
Blossom Rock Float ore, found upon the surface or near where lodes or ledges outcrop, and from which they have become detached. Bonanza Fair weather a mine said to en bonanza when it is yielding a profit. It is a Spanish term meaning good-luck. Breasting Ore Taking ore from the face, breast or end of a tunnel. Bullion.
Iron ore mining can be broadly divided into two categories namely 1 manual mining which is employed in small mines and 2 mechanized mining is suitable for large iron ore mines. Manual mining method is normally limited to float ores and small mines. Mining of reef ore is also being done manually on a small scale. The float ore area is dug up ...
Ore pocket definition is - a bin for temporary storage of ore in a mine.
Many cultures place importance on gathering of some sort and mining is no different. While mining is often thought of an Americanized dream, reflective of the gold rush or the hills of West Virginia, many cultures have important dream meanings behind mining. Because you are taking something out of the earth and placing value in it, and because often mining is important to a community, mining ...
Ore is a rock that contains minerals like iron, gold, or lead. The seven dwarfs in the movie Snow White and the Seven Dwarfs worked mining ore.
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