classification of minerals
There are several classifications of mineral resources.By physical properties is isolated solid mineral formations (various ores, coal, granite, salts), liquid (oil, water) and gases (gases, methane, helium).
The origin of the minerals are divided into sedimentary, igneous and metamorphic.
Based on the scope of use, distinguish fuel resources (natural gas, coal, peat, oil), ore (ore rocks) and aggregates (sand, clay, limestone, sulfur, potassium salts).Precious and semi-precious stones are a separate group.
Modern searches Mineral Resources are based not only on the use of modern technology and sensitive instruments, but also on scientific projections.Scientific forecast is based on the knowledge of the geological structure of relations with the conditions of formation of minerals.
There are several ways of extracting a mineral resource.When you open the way rocks are mined in quarries.It is cost-effective, but environmentally friendly method since abandoned a career can be a cause of soil erosion.Public method extracted minerals that are on the ground or lying in shallow depths.This usually limestone, sand, chalk, peat, iron and copper ore, some types of coal.
solid minerals, are in deep water, is extracted with the help of underground mines.Most often, so take out the coal.Mining method is considered the most unsafe for workers' lives.
liquid and gaseous mineral resources (oil, underground water, natural gas) is produced using wells, sometimes with the help of mines.In a number of fields used a combination of methods of production.Selecting the method is determined mainly by the geological conditions of occurrence of minerals and economic calculations.
constantly developing new ways of extracting a mineral resource.But we must not forget that the natural resources are exhaustible, so you need to spend them more sparingly and wisely.
To do this, seek to reduce wastage of resources during their extraction, to achieve a more complete extraction of the useful properties of rocks, pay more attention to the search for new, more promising fields.