The following outline is provided as an overview of and topical guide to geology:
Geology – one of the Earth sciences – is the study of the Earth, with the general exclusion of present-day life, flow within the ocean, and the atmosphere. The field of geology encompasses the composition, structure, physical properties, and history of Earth's components, and the processes by which it is shaped. Geologists typically study rock, sediment, soil, rivers, and natural resources.
Geology applies primarily to Earth, but can be applied to any planet or extraterrestrial body.
Subdisciplines of geology:
Biogeology
Economic geology
Engineering geology
Environmental geology
Geochemistry
Geologic modelling
Geomorphology
Geophysics
Historical geology
Hydrogeology
Marine geology
Mineralogy
Mining
Paleontology
Petroleum geology
Petrology
Sedimentology
Stratigraphy
Structural geology
Volcanology
See also: Geology of solar terrestrial planets
Planetary geology
Geology of Mercury
Geology of Venus
Geology of the Moon
Geology of Mars
Jupiter#Internal structure
Saturn#Physical characteristics
Uranus#Physical characteristics
Neptune#Physical characteristics
Cross-cutting relationships
Law of included fragments
Uniformitarianism
Principle of original horizontality
Law of superposition
Principle of faunal succession
Petrogenesis
History of geology
Geological history of Earth
Timeline of geology
Geologic province
Geologic provinces based on origin:
Shield (geology)
Platform (geology)
Orogen
Island arc
Continental arc
Forearc
Oceanic basin
Craton
Foreland basin
Large igneous province
Extended Crust (geology)
Rift
Plate tectonics
The Dictionary of Occupational Titles lists the following occupations in Geology, which it describes as "concerned with the investigation of the composition, structure, and physical and biological history of the earth's crust and the application of this knowledge in such fields as archeology, mining, construction, and environmental impact":
Crystallography
Geodesist
Geologist
Petroleum geologist
Geophysical survey
Geophysicist
Hydrologist
Mineralogist
Paleontologist
Petrologist
Seismologist
Stratigrapher
Volcanologist
Engineer, Soils
Geophysical-Laboratory Chief (Alternate Titles: Director, Geophysical)
Geological Aide (Petrol.
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Les ingénieurs civils exercent leurs activités en constante interaction avec le sous-sol.
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An earthquake (also known as a quake, tremor or temblor) is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere that creates seismic waves. Earthquakes can range in intensity, from those that are so weak that they cannot be felt, to those violent enough to propel objects and people into the air, damage critical infrastructure, and wreak destruction across entire cities. The seismic activity of an area is the frequency, type, and size of earthquakes experienced over a particular time.
The streak of a mineral is the color of the powder produced when it is dragged across an un-weathered surface. Unlike the apparent color of a mineral, which for most minerals can vary considerably, the trail of finely ground powder generally has a more consistent characteristic color, and is thus an important diagnostic tool in mineral identification. If no streak seems to be made, the mineral's streak is said to be white or colorless. Streak is particularly important as a diagnostic for opaque and colored materials.
The solar zenith angle is the zenith angle of the sun, i.e., the angle between the sun’s rays and the vertical direction. It is the complement to the solar altitude or solar elevation, which is the altitude angle or elevation angle between the sun’s rays and a horizontal plane. At solar noon, the zenith angle is at a minimum and is equal to latitude minus solar declination angle. This is the basis by which ancient mariners navigated the oceans.
Mineralogy is a subject of geology specializing in the scientific study of the chemistry, crystal structure, and physical (including optical) properties of minerals and mineralized artifacts. Specific studies within mineralogy include the processes of mineral origin and formation, classification of minerals, their geographical distribution, as well as their utilization. History of mineralogy Early writing on mineralogy, especially on gemstones, comes from ancient Babylonia, the ancient Greco-Roman world, ancient and medieval China, and Sanskrit texts from ancient India and the ancient Islamic world.
Seismology (saɪzˈmɒlədʒi,_saɪs-; from Ancient Greek σεισμός (seismós) meaning "earthquake" and -λογία (-logía) meaning "study of") is the scientific study of earthquakes (or generally, quakes) and the propagation of elastic waves through the Earth or other planetary bodies. It also includes studies of earthquake environmental effects such as tsunamis as well as diverse seismic sources such as volcanic, tectonic, glacial, fluvial, oceanic, atmospheric, and artificial processes such as explosions.
Geodesy is the science of measuring and representing the geometry, gravity, and spatial orientation of the Earth in temporally varying 3D. It is called planetary geodesy when studying other astronomical bodies, such as planets or circumplanetary systems. Geodynamical phenomena, including crustal motion, tides, and polar motion, can be studied by designing global and national control networks, applying space geodesy and terrestrial geodetic techniques, and relying on datums and coordinate systems.
(Mg,Fe)O ferropericlase-magnesiow & uuml;stite has been proposed to host the majority of Earth's sodium, but the mechanism and capacity for incorporating the alkali cation remain unclear. In this work, experiments in the laser-heated diamond anvil cell and ...
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Most perovskite oxides belong to the Pbnm space group, composed of an anisotropic unit cell, A-site antipolar displacements, and oxygen octahedral tilts. Mapping the orientation of the orthorhombic unit cell in epitaxial heterostructures that consist of at ...