Layers of the Earth By Elijah

The Earth's crust is Earth's hard outer layer. It is less than 1% of Earth's volume. The crust is made up of different types of rocks: igneous, metamorphic, and sedimentary rocks.
The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84% of Earth's total volume.
The outer core of the Earth is a fluid layer about 2,300 km (1,400 mi) thick and composed of mostly iron and nickel that lies above Earth's solid inner core and below its mantle. Its outer boundary lies 2,890 km (1,800 mi) beneath Earth's surface.
The Earth's inner core is the Earth's innermost part and according to seismological studies, it has been believed to be primarily a solid ball with a radius of about 1,220 kilometres (760 miles), which is about 70% of the Moon's radius. It is composed of an iron–nickel alloy and some light elements.
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 less dense than the material of the Earth's mantle and thus "floats" on top of it.
the oceanic crust is The topmost layer, about 500 meters (1,650 feet) thick, includes lavas made of basalt (that is, rock material consisting largely of plagioclase [feldspar] and pyroxene). Oceanic crust differs from continental crust in several ways: it is thinner, denser, younger, and of different chemical composition.
The lithosphere is the rigid outer part of the earth, consisting of the crust and upper mantle.
the asthenosphere is the upper layer of the earth's mantle, below the lithosphere.
Mantle convection is the slow motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior of the Earth to the surface.
ice caps are dome-shaped sheets of ice found near the North and South Poles.


Created with images by skeeze - "world earth planet" • James St. John - "Eclogite (Late Silurian to Early Devonian, about 400-423 Ma; Nordfjord area, Sogn og Fjordane County, southwestern Norway) 4" • James St. John - "Spinel lherzolite - Neoproterozoic-aged xenolith in Pleistocene basalt (Mt. Leura Complex, Newer Volcanics Province; Mt. Leura, southwestern Victoria, southeastern Australia)"

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