Category
page 1Earth's crust

mountain
thumb|upright=1.2|Mount Everest, Earth's highest mountain
Earth's crust
Earth's outer layer
magma
thumb|350x350px|Magma can be found in the mantle or the crust.
Magma () is the molten or semi-molten natural material from which all igneous rocks are formed. Magma (sometimes colloquially but incorrectly referred to as lava) is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites. Besides molten rock, magma may also contain suspended crystals and gas bubbles.
metamorphic rock
rock arising from metamorphism of original rock under high heat and pressure
fault
fracture or discontinuity in rock across which there is displacement
Pozo de Kola, Rusia
result of a scientific drilling project of the Soviet Union on the Kola Peninsula
Mohorovičić discontinuity
term in geography: boundary between the Earth's crust and the mantle
oceanic crust
part of Earth's lithosphere

isostasy
Isostasy () or isostatic equilibrium is the state of gravitational equilibrium between Earth's crust (or lithosphere) and mantle such that the crust "floats" at an elevation that depends on its thickness and density. This concept is invoked to explain how different topographic heights can exist at Earth's surface. Although originally defined in terms of continental crust and mantle, it has subsequently been interpreted in terms of lithosphere and asthenosphere, particularly with respect to oceanic island volcanoes, such as the Hawaiian Islands.
continental crust
layer of rocks that forms the continents and continental shelves

bedrock
thumb|upright|Soil with broken rock fragments overlying bedrock at Reay|Sandside Bay, Caithness, Scotland
thumb|Soil profile with bedrock labeled R
Conrad discontinuity
discontinuous seismic boundary
Abundance of elements in Earth's crust
Wikimedia list article
sima
matter of Earth's oceanic crust, consisting of rocks rich in magnesium silicate minerals
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diastrophism
thumb|260px|Diastrophism by 2011 Tohoku earthquake
Diastrophism is the process of deformation of the Earth's crust which involves folding and faulting. Diastrophism can be considered part of geotectonics. The word is derived from the Greek '''' 'distortion, dislocation'.
Project Mohole
marine research program in 1961
Mozambique Belt
band in the earth's crust from East Antarctica through East Africa up to the Arabian-Nubian Shield
Earth's crustal evolution
consolidation of the Earth's crust

Brittle-ductile transition zone
strongest part of the Earth's crust