OutlineOutline
• Planar Faults and Block Rotation
• Detachment Faulting
• Fault Linkage
• Kinematics of Normal Faulting
Normal Fault Systems and KinematicsNormal Fault Systems and Kinematics
Development of Continental Rift into Ocean Basin
East African Rift SegmentationEast African Rift Segmentation
Basin and Range Normal Fault BlocksBasin and Range Normal Fault Blocks
Rio Grande RiftRio Grande Rift Segmentation Segmentation
Death ValleyDeath ValleyFault Zone Fault Zone and Stepoverand Stepover
Closeup of StepoverCloseup of Stepover
Planar Normal Faults and Block Planar Normal Faults and Block
RotationRotation
Planar Normal Faults and Block Planar Normal Faults and Block
RotationRotation
Domino Block ExampleDomino Block Example
Domino Block ExampleDomino Block Example
Detachment FaultDetachment Fault
Detachment FaultDetachment Fault
Detachment FaultDetachment Fault
Soft-Linked SystemsSoft-Linked Systems
Kinematics of Normal FaultingKinematics of Normal Faulting
• Domino, Bookshelf-Style Normal Faulting
• Listric Normal Faulting with Reverse Drag
• Imbricate Listric Normal Faulting
• Inversion
Domino-Style Normal FaultingDomino-Style Normal Faulting
Domino-Style Normal Faulting (bookshelf Domino-Style Normal Faulting (bookshelf
faulting)faulting)
Occurs above DetachmentsOccurs above Detachments
Listric-Planar Normal Fault Listric-Planar Normal Fault
SystemSystem
???
Listric-Planar Normal Fault Listric-Planar Normal Fault
SystemSystem
L
Listric Normal Faulting with Reverse Listric Normal Faulting with Reverse
DragDrag
Listric Normal Faulting with RolloverListric Normal Faulting with Rollover
Occurs due to space problem with curved Occurs due to space problem with curved
detachmentdetachment
Imbricate Listric Normal FaultingImbricate Listric Normal Faulting
Synthetic faults also accommodate collapse of HW blockSynthetic faults also accommodate collapse of HW block
Imbricate Listric Normal FaultingImbricate Listric Normal Faulting
““Meatslices common in large displacement Meatslices common in large displacement
systemssystems
InversionInversion
• Normal faulting
• Syn-tectonic deposition of B
• Post-tectonic deposition of C
InversionInversion
• Normal faulting
• Syn-tectonic deposition of B
• Post-tectonic deposition of C
• Thrust faulting
• Deformation of B and folding of C
ReferencesReferences
Slides 1, 20, 21Slides 1, 20, 21Twiss, R. J. and E. M. Moores, Structural Geology, W. H. Freeman & Co., New York, 532 p., Twiss, R. J. and E. M. Moores, Structural Geology, W. H. Freeman & Co., New York, 532 p., 1992.1992.
Slides 3-6Slides 3-6http://earth.leeds.ac.uk/faults/normal/domino.htm
Slides 7-9Slides 7-9http://earth.leeds.ac.uk/faults/normal/detachment1.htm
Slide 10Slide 10http://earth.leeds.ac.uk/faults/soft/softnormal.htm
Slides 12-19Slides 12-19Davis. G. H. and S. J. Reynolds, Structural Geology of Rocks and Regions, 2nd ed., John Davis. G. H. and S. J. Reynolds, Structural Geology of Rocks and Regions, 2nd ed., John Wiley & Sons, New York, 776 p., 1996.Wiley & Sons, New York, 776 p., 1996.