中国地质大学：《构造地质学》课程PPT教学课件（英文版）Chapter 8 thrust Fault system

REVIEW

REVIEW

thickening thickening thinning thinning Fault drag and fault movement

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 drag

S2 01 Determination of the relative movement of the two walls from the tension joints

Determination of the relative movement of the two walls from the tension joints

Determination of the relative movement from the distribution of the fault breccia

Determination of the relative movement from the distribution of the fault breccia

a graben B horst Graben and horst structures

Graben and Horst Structures

moving slab stationary slab Transfer fault Transference of displacement from thrust to strike-slip fault

Transference of displacement from thrust to strike-slip fault Transfer fault Transfer fault

lecture THRUST FAULT SYSTEM Fault system: A set of faults of same age generated in the same tectonic process

LECTURE 8 THRUST FAULT SYSTEM Fault system : A set of faults of same age generated in the same tectonic process

hangingwall ramp A- Ramps and flats hangingwall ramp B- Hangingwall ramp and footwall footwall ramp 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 roof thrust imbricate thrust slices are contained between a floor imbricate zone floor thrust thrust and a roof thrust pop up triangle zone F-Pop-up structure frontal ramp back thrust G- Triangle zone

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 A Stack 顶板逆冲断层 Duplex with 底板逆冲断层 imbrication 图13-11双重逆冲构造 A.断夹块中岩层成膝折弯曲;B.断夹块中岩层成拉长的背斜-向斜对 N Geological 01o200m Cross-section 荷岭 D P2八NC、P2 P2l CP An interpreted cross section 图13-12双重逆冲构造 A.呼和浩特市西大青山南缘一水库旁侧剖面;B.江西高安新街剖面

Imbricate Stack Duplex with imbrication Geological Cross-section An interpreted cross section