mining exploitation

In geology, deposits are areas where huge amounts of a mineral or a group of minerals are found. Generally, when the existence of a geological deposit is discovered, a mine is established, that is, a series of prudent excavations are carried out, so that a series of workers can dedicate themselves to the extraction of the minerals found there; In addition, the treatment areas for the freshly extracted materials are included. For thousands of years, mining has been one of the most important economic activities, being the main source of income in countries such as the United States, Russia, Chile, Mexico, Peru and Colombia.

The oldest known mine is located in Swaziland, an independent region in southern Africa; It dates from around 43,000 and is believed to have been used by primitives to make weapons or various valuables for hunting and gathering food. In America, a mine located in Chile is 100 centuries old, which makes it the oldest in the entire American continent. For many years, the mining industry was one of the main economic sources of income in the world, since it was the main source of raw material for a society that was beginning an industrial revolution.

These excavations can be divided into two groups: open pit mines and underground mines. The ones that are superficial, are characterized by carrying out the work with much heavier machines; An example is Cerrejón, in Colombia, classified as the largest in the world, with 69,000 hectares. Those that are underground tend to be divided into galleries, and the work is carried out by men.