Folding Ductile Plastic Deformation A 1 2 3
- Slides: 36
Folding Ductile (Plastic) Deformation
A 1. 2. 3. 4. 5. B Identify the foot wall block. Identify the hanging wall block. Is this a strike-slip or dip-slip fault? Is this fault caused by tensional or compressional forces? Is this a normal or reverse fault?
Brittle All of the faults occur in this region as the Earth is broken. Normal, Reverse, and Strike-slip faults Fracture point Ductile Deformation Region Folds (ductile strain) All of the folds occur in this region as the Earth is bent but not broken. Anticlines, Synclines, Monoclines, Basins, Domes Elastic Limit point Elastic Earthquakes (elastic strain) Deformation Region Stress (a compressional, tensional, or shear force) Deformation Region Faults (brittle strain) Earthquakes occur in this region due to Elastic Rebound There is NO permanent deformation This does not create a break in the Earth. The earth is already broken. This is just slippage along the break.
Folded Structures 1. Anticlines 2. Synclines 3. Monoclines 4. Basins 5. Domes
Anticlines
Anticline - oldest rock formation in the middle.
Syncline - youngest rock formation in the middle.
Syncline in Eastern Tennessee
Fold Geometry Symmetrical Asymmetrical Overturned
Plunge Measured from a horizontal line.
Plunge - the inclination of the fold axis
Fold Geometry
Anticlines and Synclines
Monocline
Monocline Peru Monocline – caused by basement-block faulting
Domes Oldest rock in center Basins Youngest rock in center
Map view of structures Map Symbols
Horizontal Strata
Inclined Strata
Dome
Black Hills Dome
Black Hills Geology
Basin
Plunging Anticlines And Synclines
Sheep Mountain Anticline, Wyoming
What causes folding and faulting Anticlines and synclines – compression Basins – subsidence, the sinking of the ground due to crustal thinning. Monoclines – basement block faulting Domes – intrusions Normal Faults – tension Reverse Faults – compression Strike-Slip Faults – shear stress
Mich. Basin W isc Ar onsin ch ati A cinn Cin Illinois Basin Nas hvi Dom lle e Ozark Dome rch nk Ar ake ch e ssippi R Arch vr. Missi Forest City Basin Ka
- Horizontal
- Elasticdeformation
- Convergent boundary with subduction
- Overturned syncline
- Elastic rebound
- Plastic deformation in metals
- Elastic and plastic deformation
- Capping cast iron pipe
- Heaviest metal
- Ductile fracture mechanism
- Moderately ductile fracture
- Ductility definiton
- Ductile iron fittings
- Stress strain curve for ductile and brittle material
- Ductile
- Brittle or ductile
- Basin vs dome
- Molekul
- Fracture mechanics
- Ductile material force extension graph
- Machinability of metals
- Bronze vs brass
- Data compression test
- At a country concert the ratio of the number
- British standard for folding drawings
- Denaturation and protein folding
- Florys models
- Protein folding
- Double seam joint
- Tropopause folding
- John purdy folding chair
- Describe the types of folding and faulting
- Folding funnel
- Amniotic cavity
- Permanent bending and folding of rocks without melting
- Folding adc
- Sefer baday