OutlineOutline Normal Fault Systems and KinematicsNormal Fault Systems and Kinematics
• Planar Faults and Block Rotation
• Detachment Faulting
• Fault Linkage
• Kinematics of Normal Faulting
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 RiftSegmentationSegmentation
Death ValleyDeath ValleyFault Zone Fault Zone
and and StepoverStepover
Closeup Closeup ofof StepoverStepover
Planar Normal Faults and Block RotationPlanar Normal Faults and Block Rotation
Planar Normal Faults and Block RotationPlanar Normal Faults and Block Rotation
Domino Block ExampleDomino Block Example
Domino Block ExampleDomino Block Example
Detachment FaultDetachment Fault
Detachment FaultDetachment Fault
Detachment FaultDetachment Fault
SoftSoft--Linked SystemsLinked Systems
Kinematics of Normal FaultingKinematics of Normal Faulting
• Domino, Bookshelf-Style Normal Faulting
• Listric Normal Faulting with Reverse Drag
• Imbricate Listric Normal Faulting
• Inversion
DominoDomino--Style Normal FaultingStyle Normal Faulting
DominoDomino--Style Normal Faulting (bookshelf faulting)Style Normal Faulting (bookshelf faulting)
Occurs above DetachmentsOccurs above Detachments
ListricListric--Planar Normal Fault SystemPlanar Normal Fault System
???
ListricListric--Planar Normal Fault SystemPlanar Normal Fault System
L
Listric Listric Normal Faulting with Reverse DragNormal Faulting with Reverse Drag
Listric Listric Normal Faulting with RolloverNormal Faulting with Rollover
Occurs due to space problem with curved detachmentOccurs due to space problem with curved detachment
ImbricateImbricate Listric Listric Normal FaultingNormal Faulting
Synthetic faults also accommodate collapse of HW blockSynthetic faults also accommodate collapse of HW block
Imbricate Imbricate Listric Listric Normal FaultingNormal Faulting
““Meatslices Meatslices common in large displacement systemscommon in large displacement systems
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, 21TwissTwiss, R. J. and E. M., R. J. and E. M. MooresMoores, Structural Geology, W. H. Freeman & Co., New York, 532 p., , Structural Geology, W. H. Freeman & Co., New York, 532 p., 1992.1992.
Slides 3Slides 3--66http://earth.http://earth.leedsleeds.ac..ac.ukuk/faults/normal/domino./faults/normal/domino.htmhtm
Slides 7Slides 7--99http://earth.http://earth.leedsleeds.ac..ac.ukuk/faults/normal/detachment1./faults/normal/detachment1.htmhtm
Slide 10Slide 10http://earth.leeds.ac.uk/faults/soft/softnormal.http://earth.leeds.ac.uk/faults/soft/softnormal.htmhtm
Slides 12Slides 12--1919Davis. G. H. and S. J. Reynolds, Structural Geology of Rocks andDavis. G. H. and S. J. Reynolds, Structural Geology of Rocks and Regions, 2nd ed., John Regions, 2nd ed., John Wiley & Sons, New York, 776 p., 1996.Wiley & Sons, New York, 776 p., 1996.
