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Geophysics
Geophysics, the study of the
earth by quantitative
physical methods, especially
by seismic reflection and
refraction, geodesy,
gravity, magnetic,
electrical, electromagnetic,
and radioactivity methods.
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Earth science
Many scientists are now
starting to use an approach
known as Earth system
science which treats the
entire Earth as a system in
its own right, which evolves
as a result of positive and
negative feedback between
... > full story
Continental crust
The continental crust is the
layer of granitic,
sedimentary and metamorphic
rocks which form the
continents and the areas of
shallow seabed close to
their shores, known as
continental shelves. It is
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Mid-ocean ridge
A mid-ocean ridge or
mid-oceanic ridge is an
underwater mountain range,
formed by plate tectonics.
This uplifting of the ocean
floor occurs when convection
currents rise in the mantle
beneath the oceanic crust
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Browse Reference Articles
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Lithosphere
The lithosphere is the solid outermost shell of a rocky planet. On the Earth, the lithosphere includes the crust and the uppermost layer of the mantle (the upper mantle or lower lithosphere) which is ... > more -
Soil science
Soil science deals with soil as a natural resource on the surface of the earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils ... > more -
Engineering geology
Engineering Geology is the application of the science of geology to the understanding of geologic phenomena and the engineering solution of geologic hazards and other geologic problems for ... > more -
Geologic fault
Geologic faults or simply faults are planar rock fractures which show evidence of relative movement. Large faults within the Earth's crust are the result of shear motion and active fault zones are ... > more -
Seismic wave
A seismic wave is a wave that travels through the Earth, most often as the result of a tectonic earthquake, sometimes from an explosion. There are two types of seismic wave, namely, 'body wave' and ... > more -
Groundwater
Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of geologic formations. A formation of rock/soil is called an aquifer when it can yield a useable ... > more -
Mantle plume
A mantle plume is an upwelling of abnormally hot rock within the Earth's mantle. As the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of ... > more -
Sequence stratigraphy
Sequence stratigraphy is a relatively new branch of geology that attempts to link prehistoric sea-level changes to sedimentary deposits. The 'sequence' part of the name refers to cyclic sedimentary ... > more -
Elastic-rebound theory
In geology, the elastic rebound theory was the first theory to satisfactorily explain earthquakes. Previously it was thought that ruptures of the surface were the result of strong ground shaking ... > more -
Crust (geology)
In geology, a crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. ... > more
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