Pamplemousse19
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Does anyone know how mesas are formed?
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username2088165
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Mesas are formed by weathering and differential erosion. The top layer of a mesa (the cap rock) is made of rock which is resistant to erosion, and could be sedimentary (e.g. sandstone) or igneous (e.g. a solidified basalt lava flow or a sill). The resistant rock at the top prevents the erosion of softer layers of rock below, leaving the softer rocks below the cap rock standing higher than the surrounding land.
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Pamplemousse19
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(Original post by Leviathan1741)
Mesas are formed by weathering and differential erosion. The top layer of a mesa (the cap rock) is made of rock which is resistant to erosion, and could be sedimentary (e.g. sandstone) or igneous (e.g. a solidified basalt lava flow or a sill). The resistant rock at the top prevents the erosion of softer layers of rock below, leaving the softer rocks below the cap rock standing higher than the surrounding land.
Thanks, that's a big help!
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username2088165
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(Original post by May Squared)
Thanks, that's a big help!
You're welcome
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