This is a drawing of the Earth's crust.
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Motions of the Crust of Venus
A thick crust would prevent motion of the surface of Venus. It is not yet clear whether the crust of Venus is thick or thin. The shape of the volcanoes of Venus suggests that over its history, Venus has built a thick crust, like that of Mars.
On the other hand, features found on the surface, listed below, are all evidence that a planet's surface may be in motion. For Venus, these features are present but few, suggesting that if the crust does move, it is not with the same speed, or in the same way, as that of the Earth.
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Unlike the Earth's crust, the crust of Venus is very rigid. On Earth, the lithosphere can be pushed aside in response to the warmth of the Earth. The crust then subducts, melts, and becomes part of the
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One reason scientists think that Venus has a thick crust comes from the shape of the volcanoes of Venus. (This is a different reason than in the case of Mars). In the long time in which the volcanoes exist,
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The four main mountain ranges of Venus are named Maxwell Montes, Frejya Montes, Akna Montes, and Danu Montes. These are found on Ishtar Terra. Mountain ranges are formed by the folding and buckling of
...moreThe Magellan mission to Venus confirmed that the surface of Venus is definitely volcanic. As shown in this picture, lava flows extend to hundreds of miles across the plains in the foreground. The surface
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Tessera is a unique feature of Venus, and is also known as "complex ridged terrain". These features are found on some of the Venus Plateau Highlands. Tessera is created is by a shortening of the crust.
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