Deforming Earth's Crust Flashcards
Amount of force put on an object.
Stress
Process which the shape of a rock changes.
Deformation
Stress that occurs when forces act to squeze an object.
Compression
Stress that occurs when forces act to stretch an object.
Tension
The bending layers of rock due to stress.
Folding
Common types of folds.
Anticline
Downward toughlike folds.
Syncline
Folded that so both ends of fold are horizontal.
Monocline
Surface where rocks slide against each other.
Fault
Crust on each part of the fault
Fault Blocks
When a fault is not vertical
Haning and Footwall
Hanging wall move down foot wall move up.
Normal Fault
Hanging wall moves up footwall moves down.
Reverse Fault
3 major type of fault.
Strike slip Fault
Rock layers squezzed and pused upward .
Folded Mountains
Form when tension causes large blocks of the Earth’s crust to drop down reletive to other blocks.
Fault Block Mountains
Rock melted in subduction zonesto form magma and rises to the surface and erupts.
Volcanic mountains
A ring of active volcanos.
Ring of fire
Earth’s crust at a higher elevation.
uplift
Earth’s loweelevation at the crust.
Subsisdence
Area rising without deforming
Rebound
Deep cracks that form between 2 tectonic platespulling away from each other.
Rift Zone