drift mining encyclopedia

  • Coal Mining | Encyclopedia of Alabama

    Mining operations generally followed the pattern established in other coal regions, with drift, shaft, and slope mines being the most typical types. In drift mines, miners dug into outcroppings and followed coal seams along a relatively level path. These mines were easy to navigate but produced relatively little coal.

  • Encyclopedia Entries

    While mining and especially, silver mining, had long held a privileged place in the economy, the nineteenth century had witnessed a number of significant changes. Until about 1889, the coinage of gold, silver, and copper—a very rough proxy for production given how much silver had been illegally exported—continued on a steadily upward track.

  • Drift mining - Wikipedia

    Drift mining is either the mining of an ore deposit by underground methods, or the working of coal seams accessed by adits driven into the surface outcrop of the coal bed. A drift mine is an underground mine in which the entry or access is above water level and generally on the slope of a hill, driven horizontally into the ore seam.

  • Coal Mining | Encyclopedia of Alabama

    Mining operations generally followed the pattern established in other coal regions, with drift, shaft, and slope mines being the most typical types. In drift mines, miners dug into outcroppings and followed coal seams along a relatively level path. These mines were easy to navigate but produced relatively little coal.

  • Encyclopedia | Free Online Encyclopedia

    Encyclopedia – Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our FREE, online library.

  • arctic drift mining equipment

    Arctic Drift Mining Equipment, Drift mining Wikipedia, the free encyclopedia Drift mining is either the mining of an ore deposit by underground methods, or . arctic mining equipment makabsworg. Government board rules against Arctic uranium mine MINING arctic mining equipment,10 May 2015, A $21 billion proposal to build a,

  • Mining - New World Encyclopedia

    The drift (or cut) may have a slight incline to aid in removing the material. Slope mining: In this method, a shaft is dug at a downward slope to access the material desired, such as coal. Shaft mining: This method involves drilling a mine shaft that is a vertical (or steeply inclined) passageway to an underground mine.

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

    Drift mining is either the mining of a placer deposit by underground methods, or the working of coal seams accessed by adits driven into the surface outcrop of the coal bed. Drift is a more general mining term, meaning a near-horizontal passageway in a mine, .

  • Mining accident - WikiMili, The Free Encyclopedia

    A mining accident is an accident that occurs during the process of mining minerals. Thousands of miners die from mining accidents each year, especially from underground coal mining, although hard rock mining is not immune from accidents. Coal mining is .

  • Drift mining - Simple English Wikipedia, the free encyclopedia

    Drift mining is a way of mining where tunnels are dug horizontally. It was used by the coal industry in the 1700s. It would follow a coal seam into a hillside. It was not very safe which is why it wasn't used much. It was not safe because water could easily get in.

  • e-WV | Mining Methods in the Hand-Loading Era

    Drift mines were located where an outcrop of coal was found on a hillside, allowing miners to tunnel directly and horizontally into the seam. Most operations used the room-and-pillar method. Miners drove parallel main tunnels called entries from the entry point toward the mine's other side.

  • Drift-mining - definition, etymology and usage, examples ...

    The placer mines of the Boise Basin proved richer than those of the north, and the bulk of the population rapidly drifted southward. In drift-mining the rich gravel is covered by hard lava rock thrown up by some old volcanic outburst. That the mine had other drifts he knew, but this one suited him.

  • Drift mining

    A drift mine is an underground mine in which the entry or access is above water level and generally on the slope of a hill, driven horizontally into the ore seam. [2] Random House dictionary says the origin of the term "drift mine" is an Americanism, circa 1885-1890.

  • Drift dictionary definition | drift defined

    drift definition: The definition of a drift is a driving force or pressure, the ocean's movement due to winds and currents or a broad and shallow current that moves forward 10 to 15 miles per day. (noun) An example of drift is the encouragement to ...

  • Drift - Idioms by The Free Dictionary

    It begins with the three-year (1893-96) drift of the Fram, on an expedition inspired and led by Fridtjof Nansen, who reasoned that there were scientific lessons to be learned from the Jeannette disaster of the early 1880s. Fellow Drift competitor Declan Hicks has a Toyota Soarer GZ-20, one of only four in the UK.

  • Definitions of drift - OneLook Dictionary Search

    We found 64 dictionaries with English definitions that include the word drift: Click on the first link on a line below to go directly to a page where "drift" is defined. General (34 matching dictionaries) Drift (geology): Wikipedia, the Free Encyclopedia [home, info] drift: Merriam-Webster [home, info] drift: Oxford Dictionaries [home, info]

  • Coal Mining | Encyclopedia of Alabama

    Mining operations generally followed the pattern established in other coal regions, with drift, shaft, and slope mines being the most typical types. In drift mines, miners dug into outcroppings and followed coal seams along a relatively level path. These mines were easy to navigate but produced relatively little coal.

  • Underground Mining Transportation Systems

    CIVIL ENGINEERING – Vol. II - Underground Mining Transportation Systems - K. Matsui ©Encyclopedia of Life Support Systems (EOLSS) underground. In high production mines, the handling of large pieces of equipment is important. A cage used for lowering and raising persons must be .

  • Coal mining - encyclopedia article - Citizendium

    Drift mines may be used after strip mining has used up surface coal. Because drift mines tend to be shallow, special equipment may be required to mine them, on which, for example, workers can lie flat on short vehicles moving inside the tunnel. Drift mining is common in .

  • Mining - Horizontal openings: drifts | Britannica

    Mining - Mining - Horizontal openings: drifts: All horizontal or subhorizontal development openings made in a mine have the generic name of drift. These are simply tunnels made in the rock, with a size and shape depending on their use—for example, haulage, ventilation, or exploration.

  • Drift mining - The Full Wiki

    From Wikipedia, the free encyclopedia. Drift mining is either the mining of a placer deposit by underground methods, or the working of coal seams accessed by adits driven into the surface outcrop of the coal bed. Drift is a more general mining term, meaning a near-horizontal passageway in a mine, following the bed (of coal, for instance) or vein of ore. A drift may or may not intersect the ground .

  • Drift | Encyclopedia

    drift / drift / • v. [intr.] 1. be carried slowly by a current of air or water: the cabin cruiser started to drift downstream | fig. excited voices drifted down the hall. ∎ (of a person) walk slowly, aimlessly, or casually: people began to drift away. ∎ move passively, aimlessly, or involuntarily into a certain situation or condition: I was drifting off to sleep | Lewis and his father ...

  • The Mining Process – Waihi Gold

    1. Mining – open pit and underground. To define the ore from the waste rock, samples are taken and assayed. Assay results are used to mark out areas of ore and waste rock, which are mined separately. Some of the harder areas require blasting to loosen the rock prior to excavation by hydraulic diggers.

  • e-WV | Mining Methods in the Hand-Loading Era - Encyclopedia

    Oct 20, 2010 · Share Mining Methods in the Hand-Loading Era. In a room or entry, the solid coal to the miner's front was the face, the pillar walls to the sides the ribs, and any discarded refuse the gob. One or two miners worked a place, depending on the room or entry width. The miners loaded coal by hand.

  • Drift Mining Britannica

    The average driller drift underground mining salary in Nashville, Tennessee is $53,053 or an equivalent hourly rate of $26. This is 8% lower (-$4,705) than the average driller drift underground mining salary in the United States.

  • drift mining encyclopedia

    Drift mining - Wikipedia, the free encyclopedia Drift mining is either the mining of an ore deposit by underground methods, or the working of coal seams accessed by . More; Drift of Harrachov Mine | Drift of Harrachov mine Štola,

  • The Complete Star Wars Encyclopedia | Wookieepedia ...

    The Complete Star Wars Encyclopedia is a 2008 reference book written by Steve Sansweet and Pablo Hidalgo. Bob Vitas, Daniel Wallace, Chris Cassidy, Mary Franklin, and Josh Kushins are also contributors for the compendium. It is the second edition of the Star Wars Encyclopedia. The definitive...

  • DK Science: Earth's Resources - Fact Monster

    A gold mine in Indonesia is an example of an underground mine, where rock is dug out by machinery deep under the surface. There are two main types of underground mine: shaft mines, which are normally deep, with vertical shafts leading to tunnels; and drift mines, which are near the surface.

  • Colorado Encyclopedia

    Articles on the state's past and present, diverse people, places, environments, land and water use, urbanization, conservation, economic development.

  • Mining Facts for Kids - Kiddle

    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. Some mining is done by scraping away the soil (dirt) from the top of the ground. This is called surface mining.

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