Crust - The Earth's crust varies in thickness from 40km under the continents to only 5km under the oceans. While 40 km seems quite a lot when we think in terms of a distance between two places but it is not much terms of the Universe.
Crust
The crust ranges from 5-35 km in depth. It is composed of silicon-based rocks. The crust-mantle boundary occurs as two physically different events.
crust -- n. The outermost layer of the Earth, varying in thickness from about 10 kilometers (6 miles) below the oceans, to 65 kilometers (about 40 miles) below the continents; represents less than 1 percent of the Earth's volume.
crust The upper part of the lithosphere , divided into oceanic crust and continental crust .
Crustal movements of another kind have now been further detailed using positional information obtained from ranging to the Global Positioning System array of satellites.
Oceanic crust is created at the mid-oceanic ridges and destroyed at the oceanic trenches. Oceanic crust is relatively young age and is being created even today at mid-oceanic rift zones. Maximum age is about 200 million years.
Earth's crust contains large deposits of fossil fuels: (coal, petroleum, natural gas, methane clathrate). These deposits are used by humans both for energy production and as feedstock for chemical production.
Located between the base of the crust and overlying the core.
Mantle Plume:
A rising mass of hot mantle material that can create an area of volcanic activity in the center of a lithospheric plate.
Massive: ...
In the conceptual model we identify features (objects) on the Earth's surface, atmosphere, inside the crust or ocean with their attributes including geometric ones, ...
One of the first uses of a prototype PPP approach was for the rapid post-processing of static geodetic data for establishing and updating reference-station coordinates or for crustaldeformation monitoring.
Its shape passes through the Earth's crust and is determined from data collected all over the world about the Earth's gravity field. The vertical distance between the geoid and the ellipsoid is called the geoid height.
Although the earth can be modeled by an egg-shaped solid, local variations still exist, due to differential thickness of the earth's crust, or differential gravitation due to density of the crustal material.
Fault:
A fracture in the Earth's crust accompanied by a displacement of one side of the fracture.
Fault Block Mountain:
A mountain mass created either by the uplift of land between faults or the subsidence of land outside the faults.
The three Stabius-Werner projections are equal-area and clearly suggest the Earth's roundness, much like as its crust were cut at a meridian and peeled off. However, only the second version - known as the Werner projection - was widely used.
Plate tectonics is the study of the movement of the continental plates that make up the earth's crust. The Australian plate is moving about 7 centimetres a year in a north easterly direction.
Dragert's significant contributions to the field of crustal geodynamics but, in particular, ...
volcano
A volcano is a mountainous vent in the Earth's crust. When a volcano erupts, it spews out lava, ashes, and hot gases from deep inside the Earth.
waterfall
When a river falls off steeply, there is a waterfall.
All soils originate from the same basic materials -- the solid rocks of the earth's crust (which themselves vary spatially).
true vertical does not correspond to the theoretical one (in fact the deflection amounts from 2" to 50") because the topography and all geological masses are slightly disturbing the gravity field. Therefore the gross structure of the earth's crust ...
 See also: Surface, Region, Image, Cover, Area
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