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Strike-Slip Faulting

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Page 1: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Strike-Slip Faulting

Page 2: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Outline

• Tectonic setting– Transform plate boundaries – Escape structures in the hinterland of plate collision

zones – Transfer zones in thrust belts or normal fault systems

• -Development of a strike slip fault • -Strain within a strike slip shear zone –en echelon

structures • -Releasing bends and restraining bends

Page 3: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Plate MotionsTransform Plate Boundaries

Page 4: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Transform: Link between other kind of plate boundaries

Page 5: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

San Andreas System

Page 6: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Evolution of the Plate Boundary

Page 7: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Oceanic TransformsAge of the Ocean Floor map

Page 8: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones
Page 9: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Oceanic Transform Fault

Page 10: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones
Page 11: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones
Page 12: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones
Page 13: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Intraplate Deformation: Continental Collisions

Page 14: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Lateral Escape

Page 15: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Transfer zones in Thrust and Extensional Systems

Page 16: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Lateral Ramps in the Appalachians

Page 17: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Link between Two segments of a rift

Page 18: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Bends in Strike-slip FaultsReleasing bend

Page 19: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Bends in Strike-slip FaultsRestraining bend

Page 20: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Flower Structures

Page 21: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Positive Flower StructureArdmore Basin, Oklahoma

Page 22: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Transverse Ranges-San Andreas Fault

Page 23: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones
Page 24: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones
Page 25: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones
Page 26: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Development of a Strike-slip fault

Clay cake experiments

(Wilcox, Hardy and Seely, 1973)

Page 27: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones
Page 28: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

En Echelon Fractures

Large strike-slip faults start as a set of shorter fractures arranged En Echelon.

Page 29: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

En Echelon Fractures

Page 30: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones
Page 31: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Orientation of Folds and ThrustsRight-lateral Strike-slip

Page 32: Strike-Slip Faulting. Outline Tectonic setting –Transform plate boundaries –Escape structures in the hinterland of plate collision zones –Transfer zones

Orientation of Normal faults and Veins

Right-lateral Strike-slip


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