Mining | National Geographic Society

Mining is the process of extracting useful materials from the earth. Some examples of substances that are mined include coal, gold, or iron ore.Iron ore is the material from which the metal iron is produced. The process of mining …

Surface mining - Simple English Wikipedia, the free ...

Surface mining is a method which operates on the surface of the land. Machines remove the overburden to get at material, such as coal, below it.. Surface mining includes strip mining, open-pit mining (UK: open cast mining) and mountaintop removal mining.It is mining in which soil and rock overlying the mineral deposit are removed. It is the opposite of underground mining, in which the ...

Surface Mining | Encyclopedia

Surface mining Surface mining techniques are used when a vein of coal or other substance lies so close to the surface that it can be mined with bulldozers, power shovels, and trucks instead of using deep shaft mines, explosive devices, or coal gasification techniques.

mining: Surface Mining Methods | Infoplease

Strip mining (see coal mining ), open-pit (or open-cut) mining, and quarrying are the most common mining methods that start from the earth's surface and maintain exposure to the surface throughout the extraction period. The excavation usually has stepped, or benched, side slopes and can reach depths as low as 1,500 ft (460 m).

surface mining - Encyclopedia Britannica

Surface mining. Surface mining, method of extracting minerals near the surface of the Earth. The three most common types of surface mining are open-pit mining, strip mining, and quarrying. See also mining and coal mining. This article was most …

Surface Mining Simulator - PC | gamepressure

Surface Mining Simulator is a simulator of an open-pit mine that allows you to manage the process of extracting raw materials such as lignite, peat and stone. This title was created by Ingress studio, which also has other productions of this type in its portfolio. It is also another simulator in the offer of the French publisher, Focus Home Entertainment.

Surface Mining | The Encyclopedia of Oklahoma History and ...

Surface mining involves the removal of a valuable rock and/or mineral after it is exposed at the land surface by scraping off the overburden. It may also be called strip mining, quarrying, open-cast mining, and/or open-pit mining.

mining: Surface Mining Methods | Infoplease

Strip mining (see coal mining ), open-pit (or open-cut) mining, and quarrying are the most common mining methods that start from the earth's surface and maintain exposure to the surface throughout …

Coal mining - Wikipedia

Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production. In the United Kingdom and South Africa, a coal mine and its structures are a colliery, a coal mine is called a 'pit ...

Oil sands surface mining - Energy Education

Surface mining is a technique used to obtain bitumen from oil sands where the oil sands deposits are located fairly close to the surface. If the reserves are shallow enough, earth moving equipment can dig out oil sand for processing. These deposits must be within 75 meters of the surface to be mined in this fashion. Resources recoverable by this type of extraction are estimated to be 65 ...

mining - Underground mining - Encyclopedia Britannica

mining - mining - Underground mining: When any ore body lies a considerable distance below the surface, the amount of waste that has to be removed in order to uncover the ore through surface mining becomes prohibitive, and underground techniques must be considered. Counting against underground mining …

Surface mining, strip mining, quarries | SpringerLink

See the entry on Mines, Mining Hazards, and Mine Drainage, and Gregory (1980), for a general history of mining activities. Much of our energy resources is mined from the surface (as opposed to deep mining). Once referred to as strip mining, these surface methods are now generally known as surface mining. Surface mines, open pit mines, and ...

Drilling Machines - EOLSS

©Encyclopedia of Life Support Systems (EOLSS) Figure 3: Typical drilling applications a) underground mining and tunneling, b) quarrying, c) strip mining For large-scale open pit mining, it is common to …

Surface vs. Subsurface Mining – Maddy's Environmental ...

Mining is broadly categorized into two types: surface and subsurface. Surface Mining: Removes materials close to Earth's surface. Leaves behind spoil banks Area can be reclaimed 5 types Open Pit: Removes materials from an open pit. Used when tunnels may not be stable or overburden is very thin. Strip Mining: Uses shallow pits for removing…

Mining - Underground Mining - Surface, Beneath, Excavated ...

Compared to surface mining, underground mining is expensive and dangerous. Therefore, it is used primarily in situations where high-value ores such as gold are concentrated in narrow veins or other unusually rich deposits. Unlike surface …

Surface Mining - e-WV | The West ia Encyclopedia

| Back to e-WV The West ia Encyclopedia Surface Mining. Surface mining allows the removal of coal from the surface rather than through underground tunnels. It requires the stripping away of earth, …

Surface Mining Transportation Systems - EOLSS

UNESCO – EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING – Vol. II - Surface Mining Transportation Systems - T. Nagai ©Encyclopedia of Life Support Systems (EOLSS) Table 1. Four Steps of Surface Mining Process Surface mining is a very broad term.

Mining | National Geographic Society

Mining is the process of extracting useful materials from the earth. Some examples of substances that are mined include coal, gold, or iron ore.Iron ore is the material from which the metal iron is produced. The process of mining dates back to prehistoric times. Prehistoric people first mined flint, which was ideal for tools and weapons since it breaks into shards with sharp edges.

Strip Mining | Encyclopedia

Strip mining is used for mining phosphate fertilizer in Florida, North Carolina, and Idaho, and for obtaining gypsum (mainly for wallboard) in western states. However, the most common association of strip mining is with coal . The examples of decimated land in Appalachia have motivated calls for prevention, or at least major efforts at reclamation.

Traditional Surface Mining Methods – EXCELLENCE IN MINING ...

Surface mining is the predominant exploitation procedure worldwide. Approximately, more than 90% of all non-metallic minerals and metallic minerals and more than 60% of coal are mined by surface methods. Over 30 billion tonnes of ore and waste materials that are mined each year and surface mining …

Surface mine | Article about surface mine by The Free ...

surface mining. [ ′sər·fəs ‚mīn·iŋ] (mining engineering) Mining at or near the surface; includes placer mining, mining in open glory-hole or milling pits, mining and removing ore from opencuts by hand or with mechanical excavating and transportation equipment, and the removal of capping or overburden to uncover the ores.

Traditional Surface Mining Methods – EXCELLENCE IN MINING ...

Surface mining is the predominant exploitation procedure worldwide. Approximately, more than 90% of all non-metallic minerals and metallic minerals and more than 60% of coal are mined by surface methods. Over 30 billion tonnes of ore and waste materials that are mined each year and surface mining accounts for nearly 25 billion tonnes. The subsurface…

mining - Surface mining - Encyclopedia Britannica

mining - mining - Surface mining: It has been estimated that more than two-thirds of the world's yearly mineral production is extracted by surface mining. There are several types of surface mining, but the three most common are open-pit mining, strip mining, and quarrying. These differ from one another in the mine geometries created, the techniques used, and the minerals produced.

Mining - Simple English Wikipedia, the free encyclopedia

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.

Auger Mining - e-WV | The West ia Encyclopedia

Auger mining was introduced to the West ia coalfields in the 1940s. Today, auger mining continues to be used as a surface mining method in West ia, usually on contour surface mines where augers drill the last available coal from the highwall. A recent offshoot of auger mining is the development of highwall miners.

Open Pit Mining - an overview | ScienceDirect Topics

David R. Montgomery, in Encyclopedia of Physical Science and Technology (Third Edition), 2003. II.A. Disturbance by Surface Mining. Surface mining refers to techniques used to remove unconsolidated, consolidated, and weathered geologic materials at the land surface in order to expose and extract mineral resources.

30 U.S. Code Chapter 25 - SURFACE MINING CONTROL AND ...

subchapter ii—office of surface mining reclamation and enforcement (§ 1211) subchapter iii—state mining and mineral resources research institutes (§§ 1221 – 1230a) subchapter iv—abandoned mine reclamations (§§ 1231 – 1244) subchapter v—control of the environmental impacts of surface coal mining (§§ 1251 – 1279)

Surface mining - Wikipedia

UNESCO – EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING – Vol. II - Surface Mining Methods and Equipment - J. Yamatomi and S. Okubo ©Encyclopedia of Life Support Systems (EOLSS) Figure 2. Change in production and productivity of US coal mines The higher productivity for open pit mining equipment also lowers costs.

Surface mining | Article about surface mining by The Free ...

surface mining. [ ′sər·fəs ‚mīn·iŋ] (mining engineering) Mining at or near the surface; includes placer mining, mining in open glory-hole or milling pits, mining and removing ore from opencuts by hand or with mechanical excavating and transportation equipment, and the removal of capping or overburden to uncover the ores.

Coal Mining - an overview | ScienceDirect Topics

Nancy Irwin Maxwell, in Encyclopedia of Energy, 2004. 1.1 Environmental Impacts of Underground and Surface Mining of Coal. Coal mining traditionally took place underground, with men and equipment following seams of coal deep within mountains. Since the 1960s, surface mining …