(08) thrust Fault system.ppt

REVIEW
Fault drag and fault movement
thickening
thickening
thinning
thinning
Determination of the relative movement of the two
walls from the drag
Determination of the relative movement of the two walls from the tension joints
Determination of the relative movement from the distribution of the fault ia
Graben and Horst Structures
Transference of displacement from thrust to strike-slip fault
Transfer fault
Transfer fault
LECTURE 8 THRUST FAULT SYSTEM
Fault system : A set of faults of same
age generated in the same tectonic process.
A - Ramps and flats
B – Hangingwall ramp and
footwall ramp
C – Piggyback thrust sequence
New thrusts develop in the
footwall
D – Overstep thrust sequence
New thrusts develop in the
Hangingwall
E – Structure of duplex:
imbricate thrust slices are
contained between a floor
thrust and a roof thrust
F - Pop-up structure
G – Triangle zone
Imbricate Stack
Duplex with imbrication
Geological Cross-section
An interpreted cross section