Geology studies the composition of both surface rocks and those of deep mineral deposits, solid, liquid and gas, the structure of the planet, tectonic plates of the Earth's shell, its fluid succesive layers wich are located between the solid shell of the earth surface and its hard core, composed maily of melted heavy elements, subject to very high pressures.
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The first stage of geological research of a region starts with mapping the land, paying particular emphasis to the surface rocks.
Follows prospective phase with grooves on the surface, and surface drilling to develop geological profiles, taking samples (samples to determine the content), these data will be included in a geological map scaled with alignments (curves level).
The extrapolation method can predict the position of deep rocks, a detailed examination at the microscopic level provides information on mineralogical composition and paleontology (fossils) of rocks.
Data obtained by direct methods of geological prospecting may be completed with data obtained by indirect methods such as geophysical investigations.
The applications in this field are different from the analyse before buying or selling the fields in the difficult areas, until the exploration of the rocks (ballast-holes, mineral deposit, coals, etc.).
Geological mapping for exploration
Types of documentation with geological character and geological-tehnical character