strip mining vs subsurface mining environmental impact

12.5.1 Environmental Impacts of Bayer Alumina Production. The mining of bauxite for an alumina product has the same kind and degree of environmental impact as imposed by any strip mining operation. These effects may be minimized by spoils replacement and aesthetic contouring, as well as by the replanting of hardy grasses and shrubs, where ...

Surface vs. Subsurface Mining. Mining is broadly categorized into two types: surface and subsurface. Removes materials close to Earth's surface. 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 building materials.

What is underground mining When the minerals are found in rich veins but in large volumes of sterile rocks, the only way to mine them is the underground mining method. The material obtained, usually precious minerals or non-ferrous metals, are mov...

Strip mining. The top layers are removed to expose shallow horizontal deposits, which are then extracted. Commonly used for coal, oil, sand, and gravel. Pros. economically efficient. the most effective mining method. used for shallow deposits. Cons. obliterates natural communities over large areas. soil in refilled areas can erode away

that humans remove during mining operations. The environmental effects of surface mining include • Habitat destruction • Soil erosion • Air pollution from dust particulates • Pollution (especially from sediments) All surface mining techniques negatively affect the environment, though some methods are more damaging than others. Strip ...

Before understanding subsurface mining environmental impacts, you must have information about the subsurface mining definition. Surface mining is the process of extracting minerals from the surface of the earth and some of the most common types of surface mining are pit mining, quarrying, and strip mining. This is the subsurface mining definition.

Environmental Impacts. - Acid drainage from the equipment. - Toxic water end up in groundwater. - Abandoned mining sites can continue polluting groundwater after the mining has ceased. -Water must be pumped out of the mine during the mining process. After the mine is abandoned, the pumping stops, and the water floods the mine.

THE. ENVIRONMENTAL. EFFECTS OF. STRIP MINING A ll mining operations have a disruptive effect on the environment, but the sheer volume of material involved in strip mining makes the impact on the environment especially acute. Surface mining (another name for "strip mining") can severely erode the soil or reduce its fertility; pollute waters or drain underground water reserves; scar or altar the ...

III. Mining Methods and their Impacts A. Strip mining removes surface layers of soil and rock. 1. When a resource sits in shallow horizontal deposits near the surface, the most effective mining method is often strip mining, whereby layers of surface soil and rock are removed from large areas to …

What Are the Pros and Cons of Strip Mining? (with pictures)

Type of surface mining in which chain buckets and draglines scrape up sand, gravel, and other surface deposits covered with water. It is also used to remove sediment from streams and harbors to maintain shipping channels. See dredge spoils. Compare area strip mining, contour strip mining, mountaintop removal, open-pit mining, subsurface mining.

After mining. On the right side, the same watershed is shown after the mountain rock layers have been removed, crushed, and deposited in the stream valley. Flat surfaces of remaining rock layers are less permeable, producing higher surface runoff into a flood control channel (f) and valley fill (g) (height is approximate).

There are a variety of ways that minerals can be mined from the Earth, including surface mining, strip mining, and subsurface mining. Learn more about how mineral are extracted and what harmful ...

The environmental damage caused by surface mining is related to the large amount of surface material that humans remove during mining operations. The environmental effects of surface mining include Habitat destruction Soil erosion Air pollution from dust particulates Pollution (especially from sediments) All surface mining techniques negatively affect the environment, though some methods are ...

Mining and the Environment • Mining has an impact because minerals are removed from the earth by undergroundorsurface excavations. • The impact depends on the land, the water, the depth of mineral, the amount removed, method used, soil type, and surrounding rock. • It can also effect the atmosphere. The amount of dust

Explanation: But briefly, strip mining is economically "necessary" to extract some mineral resources, such as coal, when the overburden is not too thick. In such cases, an underground mine would be costly and probably unsafe. Answer link.

The Bush administration took things further by allowing mining companies to dump their waste materials (including dirt and rock) into headwater waterways, i.e. the source of rivers and streams. Despite being legal, depositing soil and other mining byproducts into waterways can be incredibly harmful to the environment.

The waste, filth, and rock that they take off of the top of the next strip is put on top of the last one. This is recurring until the last strip is done and the waste from the primary strip is brought back to fill it. Strip mining, like other types of surface mining, finishes in hurting the area around the mine.

Open Pit Mining. Open pit mining, also known as strip mining, is the removal of surficial soils and uneconomic rock to get at the ore below. Ore grades are normally less than 0.5%. This is type of mining is only possible if the uranium ore is near the surface (normally less than 400 ft).

What is Strip Mining? Surface mining, counting strip mining, mountaintop removal mining and open-pit mining, is a wide classification of mining where soil and rock covering the mineral source (the 'overburden') are gotten rid of, unlike underground mining (or deep mining) where the overlying rock is kept in place, and the mineral is taken out through shafts or tunnels.

Strip mining is for shallow, mostly horizontal deposits, usually extended over a considerable area. You remove the overburden, take the ore/coal and move another step in. Behind you, land reclamation can begin relatively soon. As such, the 'mine' moves across the land over time. Open pits are for deposits that are tilted or even vertical.

An example is strip mining, which removes the vegetation from an area, making the area more susceptible to erosion. What are some other types of mining? What are some environmental problems with the different types of mining, specifically subsurface vs. surface mining?

strip mining The most dangerous form of mining (for the miners) is __________. subsurface mining because of the risk of explosions and the fact that miners are subject to air pollutants that can lead to respiratory diseases.

Surface mining requires large areas of land to be temporarily disturbed. This raises a number of. environmental challenges, including soil erosion, dust, noise and water pollution, and impacts on ...

Strip Mining. Strip mining gets its name from the fact that the process involves stripping the surface away from the mineral that's being excavated (usually coal). Soil, rock, and vegetation over the mineral seam is removed with huge machines, including bucket-wheel excavators. This type of mining makes sense when the mineral is near the surface.

S urface mining can degrade aquatic habitats with impacts felt many miles from a mining site. For example, sediment contamination of rivers and streams is common with surface mining. Does surface mining cause air pollution? Like other surface mining operations that remove materials, pit mining operations scar the landscape, destroy habitat, and pollute the air with dust and particulates.

Distinguish between surface mining and subsurface mining. SURFACE MINING is the extraction of mineral and energy resources near Earth's surface by first removing the soil, subsoil, and overlying rock strata. SUBSURFACE MINING is the extraction of mineral and …

Strip mining and subsurface mining Strip mining (or surface mining) is performed when surface soil and rock are stripped off to reach the mineral of concern. When such operations are done, surface water bodies (lakes, streams, etc) gets acidity. Acid mine drainage occurs when water molecules infiltrates the spoil banks. The water reacts with sulfide minerals to produce sulfuric acid.

SURFACE MINING is the extraction of mineral and energy resources near Earth's surface by first removing the soil, subsoil, and overlying rock strata. In STRIP MINING, a type of surface mining, a trench is dug to extract the minerals. SUBSURFACE MINING is the extraction of mineral and energy resources from deep underground deposits.

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Surface mining is safer and easier than subsurface mining.Surface mining does more damage to the environment than subsurface.Surface mining creates more of a mess then subsurface …

New geologic studies suggest that underground mining of coal may cause more environmental damage over long periods of time than surface strip mining followed by proper reclamation, according to the U.S. Geological Survey (USGS).