The fieldwork in geology

The disciplines of Geology

Climatology The branch of geography that studies and classifies climates.

Crystallography The branch of mineralogy that deals with crystalline matter, forms, structures and properties of the crystals and their classification.

Edaphology Science between geology and biology that studies soil formation, classification and dynamics.

Stratigraphy The branch of geology that studies, explains, etc. sedimentary rocks with regard to the adjacent ones with respect to their temporal relationship and correlation with other close or distant units.

Geochronology The branch of geology that studies and applies rock dating methods. It has two branches: relative and absolute dating.

Geodynamics The branch of geology that deals with geologic processes, actions and results of relief modification caused by both external geologic agents (wind, precipitation…) or internal (volcanism, seismicity, orogeny. ) It is divided into two branches: external and internal geodynamics.

Geophysics The branch of geology that applying physical methods (gravity, magnetism) studies the Earth from the inner layers (earth structure) to the outer ones (winds, tides, etc.)

Geology Science that studies Earth’s composition, structure, morphology, dynamics and age. It is structured in several branches: mineralogy, crystallography, petrology, external and internal geodynamics, geochemistry, tectonics, stratigraphy, sedimentology, geomorphology, palaeontology, historical geology and applied geology.

Applied geology The branch of geology that studies the application of geology knowledge to different human activities, specially to development: agriculture, resources, geotechnics.

Structural geology The branch of geology that deals with rock disposition and internal structure. In fact, it is very similar to tectonics but the latter discusses it in a regional sense and structural geology at small scale.

Geomagnetism The branch of geophysics that studies terrestrial magnetism and its application in Earth’s structure study, continental drift, resources research, etc.

Geomorphology The branch of geology that studies Earth relief, both continental and oceanic and infers the causes that have originated it and its development. There are different branches according to the studied areas and methods (arid, climatic, dynamics, etc. geomorphology.)

Geochemistry The branch of geology that studies the several chemical elements and isotopes distribution in different places of the Earth, layers, sediments, etc., as well as the reactions that take place.

Geotechnics The branch of geophysics that applies this knowledge to the solutions of civil engineering problems (construction of bridges, dams, etc.)

Geothermics The branch of geophysics that looks into the study of Earth’s inner heat and temperature, heat sources and thermic properties of materials.

Gravimetry The branch of geophysics that looks into the study of terrestrial gravity field anomalies and explains its causes associating it to mineral deposits, etc.

Hydrogeology The branch of applied geology that studies ground waters and their relationship with surface ones and precipitation and applies it to water supply and overexploitation and contamination derived problems.

Mineralogy The branch of geology that studies mineral formation and properties and establishes their classification as well as crystallographic structure.

Petrography The branch of geology that discusses rock description and classification. It is a branch of petrology (that looks into their study in all of the aspects.)

Petrology The branch of geology that studies rocks, describes them, investigates their origin and establishes a classification, as well as their development through time. This term is broader than petrography.

Seismology The branch of geophysics that studies earthquakes and their effects as well as the ways of propagation of waves as a tool to study Earth’s inner structure. By extension it studies as well any artificial vibratory phenomenon (for geophysics prospects.)

Tectonics The branch of geology that looks into the study of crust structure, i.e. the whole of deformations that suffer surface rocks, their origin and development. Tectonics discusses structures in a very broad way while structural geology does it in a more detailed way. However, they can be considered as synonyms.

Palaeontology Geology (and biology) branch that studies past living beings (essentially their fossils), their morphology and way of life. It also establishes their phylogeny and classification. Palaeontology, at the same time, is an important tool for rock dating on the basis of their fossil content.

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