Turn on thread page Beta
    • Thread Starter
    Offline

    10
    ReputationRep:
    Does anyone know how mesas are formed?
    Offline

    20
    ReputationRep:
    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.
    • Thread Starter
    Offline

    10
    ReputationRep:
    (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!
    Offline

    20
    ReputationRep:
    (Original post by May Squared)
    Thanks, that's a big help!
    You're welcome
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: January 30, 2016
Poll
Do you think parents should charge rent?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.