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460:307--Structural Geology

Images of
Geologic Structures

R.W. Schlische & M.O. Withjack
Spring 2002

Contents

Faults
Folds

Strain

Foliations and lineations

Ductile shear zones and kinematic indicators

Joints and veins

Extensional tectonics

Salt tectonics

Strike-slip tectonics

Fold and thrust belts

Primary structures, contacts & other structures


Faults

Fault Separation
Strike-slip Fault with Variable Displacement
Field of Normal Faults
Length-Displacement Scaling
Normal Faults in Cross Section
Fault Scarp
Normal Fault Scarp and Footwall Uplift
Segmented Fault Scarp
Footwall Uplift Mountains
Drag Fold
Fault Breccia 1
Fault Breccia 2
Cemented Fault Breccia
Pseudotachylite

45smallthrust.html
50slick.html
antietam_breccia_tsec.html
conjnormalflt_MM.html
fault_fluidflow_RWS.html
groove_nrmlflt_beutner.html
normalfltsurf_Smith.html
reverse_fault.html
scarp.html

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Folds

Anticline & Syncline
Plunging Folds
Isoclinal Fold
Mountain-Scale Chevron Folds
Saddle Reef in Anticlinal Hinge
Vertical Folds
Harmonic Folds
Polyharmonic Folds
Kink Band
Sheath Folds
Monocline
Drag Fold
Fault-Bend Fold

08syncl.jpg
22kinkchevron.html
chevron.html
disharmonicgneiss_MM.html
foldedfold_Wise.html
inclined.html
inclinedsynform.html
monocline_Root.html
NSDZparasiticfolds.html
parallel1.html
ptygmatic_Spencer.html
ramsaytype1.html
ramsaytype2.html
recumb.html
recumbentfold.html
similar.html
imilarfolds.html
superposed.html

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Strain

Curved Vein Fibers
Folded Boudins
Deformed Ooid and Pressure Shadow
Deformed Quartzite
Deformed Mudcracks

31trilobite.html
belemnite.jpg
boudindyke.html
def_conglrws.html
def_footprints_rws.html
NSDZfoldedboudins.html
reductionspots.html

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Foliations and lineations

Crenulation Cleavage
Thin Section of Crenulation Cleavage
Axial Planar Cleavage
Convergent and Divergent Cleavage Fans
Transected Cleavage
Lithologic Control on Cleavage Spacing
Pressure Solution Cleavage
Deformed Oolite
Fold-Hinge Lineations
Experimental Boudins
Pinch-and-Swell Structures
Cleavage-Bedding-Fold Relationships

boudinage.html
boudin_Max.html
cleavage.html
cleavage_knipe.html
cleavrefrGold.html
cleav_fan_RWS.html
crenulationX.html
mullions_Stenstrom.html
pencils_Varga.html
psolcleav.html
qtz_musc_schist.html
solcleav_Burger.html
stylolite.html

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Shear zones and kinematic indicators

Right-Lateral Ductile Shear Zone
Right-Lateral Brittle-Ductile Shear Zone 1
Left-Lateral Brittle-Ductile Shear Zone

36fish.html
apliteshear.html
BDSZarrays_Stenstrom.html
DSZkohi1.html
DSZlaghetti.html
DSZodhair.html
EEVA_Kar.html
foldsinDSZunst.html
fracturedclast2.html
mylonite2.html
mylonitethinsection.html
porphyroclast.html
SCfabric.html
sigmatail_Gold.html

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Joints and veins

Joint-Controlled Weathering 2
Fluid-Flow and Jointing 1
Fluid-Flow and Jointing 2
Plumose Markings
Border Fractures
Conchoidal Steps
Orthogonal Joint System
Joint Spacing vs. Lithology
Syntaxial Calcite Vein
Sinistral En Echelon Vein Array
Sediment-Filled Fissures

antitaxial.html
archesjoints1_LJM.html
archesjoints2_LJM.html
archesjoints3_LJM.html
columnarbasalt.html
devilstowerjoints_LJM.html
exfoliationyosemite.html
jointalteration.html
joints_lith_RWS.html
Passaic_joints2.html
plumose_MMK.html
plumose_RWS.html
tensiongashesHarms.html

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Extensional tectonics

Clay Model: Distributed Oblique Extension
Clay Model: Basement-Involved Normal Faulting
Small Relay Ramp
Clay Model: Basement-Involved Oblique-Normal Faulting
Clay Model: Oblique Relay Ramps
Detached Normal Faults
Growth Faults
Talus Slope Deposits
Border Fault Fanglomerate
Domino-Style Normal Faults
Low-Angle Normal Fault
Red Sea
Basin and Range
Icelandic Rift Valley
Icelandic Normal Fault Scarps

normalscarp2.html
teton.html
Thingvellir.html

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Salt tectonics

Diapir
Gulf of Mexico Salt Structures

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Strike-slip tectonics

Clay Model: Basement-Involved Strike-Slip Faulting
Offset Streams along Strike-Slip Fault
Pressure-Ridge Adjacent to Strike-Slip Fault

LLSL.html
LLSL2.html
LVSS_MM.html
obliqueslipfault.html
obliqueslipfault2.html
RLSL.html
RLSL2.html
RLSLenech.html
sanandreas.html
tearfault.html

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Compressional tectonics

Reverse Fault
Ramp-Flat Structure
Imbricate Reverse Faults
Fault-Bend Fold
Duplex
Clay Model: Basement-Involved Shortening
Clay Model: Basin Inversion

chileThrust.html
faultbendfold.html
fltpropfold.html
foldthrust_Pogue.html
sheepmtnanticline_LJM.html
STS068_173_103_App.html
taconicunconformity.html
thrust2.html
thrust3.html
thrust_alps.html

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Primary structures, contacts, and other structures

Horizontal Bedding
Inclined Bedding, Meaning of Strike & Dip
Meaning of Apparent Dip
Vertical Beds
Cross Bedding
Channel and Fining-Upward Succession
Mudcrack in Cross Section
Pahoehoe Lava with Flow Folding
Pillow Lava
Cooling Columns in Basalt
Dike
Angular Unconformity, Grand Canyon
Angular Unconformity, Tennycape
Impact Crater 2
Shatter Cone

dikeintersect_LJM.html
meteorcrater_LJM.html
shiprock_LJM.jpg
dike_Root.html
normflt_angunconf_Varga.html
siccarptunconformity.html
thrustOregon_MM.html

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slides.html -- Revised: 25 February 2002
Address comments and corrections to Roy W. Schlische