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Fundamentals of Physical Geography

2nd Edition
James Petersen
ISBN: 9781133606536

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BuyFindarrow_forward

Fundamentals of Physical Geography

2nd Edition
James Petersen
ISBN: 9781133606536
Textbook Problem

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FIGURE 10.4 Cross section through Earth’s lithosphere and asthenosphere, and extending lower into the mantle.

Which is denser, oceanic crust or continental crust?

To determine

The denser crust: oceanic or continental.

Explanation

The crust is the solid outer layer of Earth, which consist of a vast variety of rock types. When compared to the core and mantle, the density of crust is considerably less. The crust is also thin when compared to the thickness of core and mantle. The crust has two sections, namely oceanic crust and continental crust.

The density of the oceanic crust is 3.0 grams per cubic centimeter. Oceanic crust is only a few kilometers in thickness is composed of basalt, a dark-colored iron-rich rock and having high silica and magnesium content...

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