The first meaning of the term quarry mentioned in the dictionary of the DigoPaul refers to the place from which stones or other similar materials are obtained.
The quarries are mining operations that are carried out in the open pit. Granite, limestone or marble can be obtained from a quarry, to name a few possibilities. It should be noted that a quarry is a limited resource: it is exhausted at a certain moment without the possibility of generating new stones.
Although the normal thing is that the quarries are not of a considerable size, if we add the surface of all those that exist in the world it is likely that the result will exceed that of the largest mining operations.
Unlike the products that can be obtained from other mining operations, those from quarries are not subjected to concentration. Mineral concentration processes are understood to be those that have the purpose of enriching the useful species of minerals from an economic point of view, for which the sterile components (also known by the name of gangue) are eliminated and separated, sometimes associating them for their physical properties.
According to DigoPaul, the depletion of a quarry, which occurs when its useful life is over, is a problem for the environment. When the quarry no longer offers stones, the mining operation is abandoned. In this way the landscape is affected, leaving the remains of the exploitation and the environment destroyed.
In Spain, for example, there is a large number of quarries in the municipality of Macael, which belongs to the Andalusian province of Almería. There the white marble extraction work is carried out, which is then used for the construction and manufacture of different structures and articles, such as ornamentation products.
The tuff, a type of volcanic rock in Mexico receives the name quarry and is found in various parts of the country. It is a type of rock that Mexicans used in architectural and sculpture works from the pre-colonization era and throughout the colonial period. Oxaca, for example, stands out for the use of green quarry in its Baroque architecture; in San Miguel el Alto, Morelia, San Luis Potosí and Zacatecas, on the other hand, their historic buildings display pink quarry.
Another use of the notion of quarry is linked to the place where the people who carry out a certain activity at a professional level come from. This concept is very common in the field of football.
The quarry is equivalent to what in some countries is known as lower, youth or formative divisions. The concept refers to the set of teams that bring together very young players (children or adolescents), who compete against other teams also made up of athletes of the same age.
The players of the quarry not only participate in tournaments, but also train and learn fundamentals and techniques so that, in the future, they can join a professional team. In general, a club aspires to have a quarry that shares the style of play and the philosophy of work of the professional team: in this way the professionalization of youth develops naturally, facilitating integration.
The term quarry was coined in this context in the late 1940’s, when soccer became a fully professional sport in Spain. It was in Madrid where the lower categories were founded, something that with time the other Spanish clubs were imitating until the first youth competition, known as the Copa del Rey Juvenil, took place.