Lesson 5 Flashcards
Forces of compression as it is along colliding plate boundaries
Folding
Upturned folds
Anticlines
Downturned folds
Synclines
Sides of the folds
Limbs
Imaginary plane dives the fold in half
Axial planes
Near vertical axial planes.
Symmetrical folds
Axial plane is inclined
Asymmetrical folds
Compression is more pronounced from one direction
Overturned folds
Pressure may lay the fold over horizontal to the aurface
Recumbent fold
Plane extends into earth and along which slippage occurs
Fault plane
Length of the folds is tilted
Plunging fold
Enormous stress builds and push large intact rock
Faulting
Indicates the attitude or position of linear structural features
Strike
Moves horizontally, vertically, or both direction
Hanging wall
Below the fault plane. Extends below a diagonal fault line
Footwall