The two main types of mining are surface mining and underground mining. Mining is further divided into several other categories including room and pillar mining, slope mining, block caving, quarrying, open-pit mining and... More »

Coal is formed in a swampy depositional environment that includes the remains of trees and shrubs. This swampy environment is able to bury plant life quickly before it rots. Once buried, the plant life is heated and comp... More »

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Strip mining involves removing the surface layers of earth, called the overburden, in rectangular strips to mine the mineral reserve underneath them. After a strip of ore is mined, another strip is prepared next to it. T... More »

Ritchie Bros. auctions trucks and heavy equipment, including unused and used equipment suitable for construction, farming, forestry, mining, material handling and other industries. Every auction is unreserved, meaning th... More »

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Open cast mining is a type of surface mining in which mineral resources are removed from the earth through large holes or pits dug into the surface. The term "open cast mining" is used most commonly in Great Britain. More »

The two main methods used for coal extraction are surface mining and underground mining. The methods used to extract coal depend on the geology of the coal deposits. According to Energy Trends Insider, the amount of coal... More »

Opencast mining, also known as surface mining or strip mining, has disadvantages that include disturbance of the environment and local ecosystems, exposure of radioactive elements and contamination of freshwater sources.... More »