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volcanoes
Question | Answer |
---|---|
how are faults formed? | when rocks break and fracture when they are put under too much pressure |
What are the 3 processes of faults? | Compression, Tension and shearing |
What is compression? | When rocks are pushed together as pressure is exerted from both sides and rock moves upwards |
What is tension? | rocks are pulled apart as they are strained from both sides and the crust sinks downwards |
Shearing? | Rocks are moved laterally in opposite directions. and the crust tear apart |
what process is a reverse fault? | compression |
what process is a normal fault? | tension |
what process is a transform fault? | shearing |
What is an example of a reverse fault? | kilarney mallow thrust fault |
What is an example of a normal fault? | East African Rift valley |
What is an example of a transform fault? | San Andreas fault |