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Crust (geology) - Wikipedia, the free encyclopedia
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Crust - Wikipedia, the free encyclopedia
Crust may refer to: Geology and soil science •Crust (geology), the outer solid layer of a planet •Continental crust •Oceanic crust •Soil crust •the dough or pastry shell of pies, pizzas, etc. Musi...
en.wikipedia.org/wiki/Crust |
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Don't Eat the Earth's CRUST ... The Earth's outermost surface is called the crust. The crust is typically about 25 miles thick beneath continents, and about 6.5 miles thick beneath oceans. The crust is relatively light and brittle. Most earthquakes occur within the crust.
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We present a new contour map of the thickness of the Earth's crust. We use a 10 km contour interval plus the 45 km contour. This contour map was created directly from the 5 deg. by 5 deg. gridded crustal model CRUST 5.1 (Mooney et al., 1998) plus complementary information.
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Exploring the Earth's Crust ... The earth is divided into four main layers: the inner core, outer core, mantle, and crust. The core is composed mostly of iron (Fe) and is so hot that the outer core is molten, with about 10% sulphur (S). The inner core is under such extreme pressure that it remains solid.
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The crust, the outermost layer, is rigid and very thin compared with the other two. Beneath the oceans, the crust varies little in thickness, generally extending only to about 5 km. The thickness of the crust beneath continents is much more variable but averages about 30 km;
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Earth's mass is divided into an inner core, outer core, mantle, and crust. The crust is outermost layer of the earth, 3–44 miles (5–70 km) thick and representing less than 1% of the earth's total volume.
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Crust - rocky silicates (5 - 50 km thick) ; Mantle - denser rocky silicates (2900 km) ; Core - very dense, metals - iron and nickel (3400 km) ... The crust is made up of three different kinds of rocks. Each kind of rock is formed in a different way. Igneous rocks are formed when melted rock inside the crust cools.
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The Earth's Crust, Lithosphere and Asthenosphere ... Crust, the upper layer of the Earth, is not always the same. Crust under the oceans is only about 5 km thick while continental crust can be up to 65 km thick. Also, ocean crust is made of denser minerals than continental crust.
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