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Crust (geology)


The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain ...

The Earth's Crust - Geology For Kids - By KidsGeo.com


The Earth's Crust The first layer consists of about 10 miles (16km) of rock and loose materials scientists call the crust. Underneath the continents, the crust is ...

Earth's Crust


The Earth's Crust is like the skin of an apple. It is very thin in comparison to the other three layers. The crust is only about 3-5 miles (8 kilometers) thick under the  ...

Hole Drilled to Bottom of Earth's Crust, Breakthrough to Mantle Looms


Apr 7, 2005 ... Scientist said this week they had drilled into the lower section of Earth's crust for the first time and were poised to break through to the mantle in ...

The Earth's Crust: Everything You Need to Know


The Earth's crust is the thin, rocky layer that makes up our planet's shell. It is exceptionally important, and not just because we live on it.

What is Earth's Crust? - Universe Today


Sep 16, 2016 ... You might not realize it, but you're standing on a thin shell of solid rock encasing a vast quantity of molten rock. This is the Earth's crust, and it's ...

Earth's crust | geology | Britannica.com


The average thickness of the terrestrial crust for both East and West Antarctica approximates that of other continents. Although it has been postulated that West ...

Earth's crust - definition of Earth's crust by The Free Dictionary

www.thefreedictionary.com/Earth's crust

Noun, 1. Earth's crust - the outer layer of the Earth. crust · layer - a relatively thin sheetlike expanse or region lying over or under another. asthenosphere - the ...

How Thick is the Earth's Crust? - USGS Earthquake Hazards Program


Apr 6, 2016 ... This contour map of the thickness of the Earth's crust was developed from the CRUST 5.1 model. The contour interval is 10 km; we also include ...

Element Abundance in Earth's Crust - HyperPhysics


Given the abundance of oxygen and silicon in the crust, it should not be surprising that the most abundant minerals in the earth's crust are the silicates. Although ...

Earth's crust | Define Earth's crust at Dictionary.com
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crust - National Geographic Society


May 29, 2015 ... The oldest rocks yet identified on Earth were discovered in the Jack Hills of Western Australia, part of the Yilgarn Craton, a shield formation.

Crust (geology) - Science Daily


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.

What is Earth Made Of? - Space.com


Sep 26, 2012 ... The structure of the Earth is like an onion; it has multiple layers. Earth's layers consist of the crust, mantle and core. Several elements make up ...