10,323
edits
Changes
Jump to navigation
Jump to search
Line 25:
Line 25: − + − + − + Line 63:
Line 63: − + Line 82:
Line 82: − + Line 89:
Line 89: − + − + Line 97:
Line 97: − + Line 106:
Line 106: − + Line 128:
Line 128: − +
→Deformation of rocks
==Deformation of rocks==
==Deformation of rocks==
<gallery mode=packed heights=300px>
<gallery mode=packed heights=300px>
File:Structural_Geology_Fig-3.0.png|Fig. 3.0
File:Structural_Geology_Fig-3.0.png|{{figure number|3.0}}
File:Structural_Geology_Fig-3.1.png|Fig 3.1 Small Scale Folds
File:Structural_Geology_Fig-3.1.png|{{figure number|3.1}} Small Scale Folds
File:Structural_Geology_Fig-3.2.png|fig 3.2 Small Scale Faults
File:Structural_Geology_Fig-3.2.png|{{figure number|3.2}} Small Scale Faults
</gallery>
</gallery>
</gallery>
</gallery>
[[File:Structural_Geology_Fig-3.6.png|300px|thumb|Fig 3.6 Differential stress]]
[[File:Structural_Geology_Fig-3.6.png|300px|thumb|{{figure number|3.3}}Differential stress]]
'''Strength'''
'''Strength'''
* Temporary change in shape or size that is recovered when the deforming force is removed
* Temporary change in shape or size that is recovered when the deforming force is removed
[[File:Structural_Geology_Fig-3.7.png|center|300px|Fig 3.7]]
[[File:Structural_Geology_Fig-3.7.png|center|300px|{{figure number|3.4}}]]
'''Ductile (Plastic) Deformation'''
'''Ductile (Plastic) Deformation'''
<gallery mode=packed>
<gallery mode=packed>
File:Structural_Geology_Fig-3.8.png|Fig 3.8 Diagram showing ductile deformation (folding).
File:Structural_Geology_Fig-3.8.png|{{figure number|3.5}} Diagram showing ductile deformation (folding).
File:Structural_Geology_Fig-3.9.png|Fig3.9
File:Structural_Geology_Fig-3.9.png|{{figure number|3.6}}
</gallery>
</gallery>
* Usually occurs along sub-planar surfaces that separate zones of coherent material
* Usually occurs along sub-planar surfaces that separate zones of coherent material
[[File:Structural_Geology_Fig-3.10.png|center|300px|fig 3.10]]
[[File:Structural_Geology_Fig-3.10.png|center|300px|{{figure number|3.7}}]]
'''Factors that affect deformation'''
'''Factors that affect deformation'''
'''''The variation of these factors determines if a rock will fault or fold.''''
'''''The variation of these factors determines if a rock will fault or fold.''''
[[File:Structural_Geology_Fig-4.0.png|center|300px|Fig 4.0]]
[[File:Structural_Geology_Fig-4.0.png|center|300px|{{figure number|3.8}}]]
Brittle Failure
Brittle Failure
* (scale - from mm to tens of km)
* (scale - from mm to tens of km)
[[File:Structural_Geology_Fig-4.1.png|center|300px|Fig 4.1]]
[[File:Structural_Geology_Fig-4.1.png|center|300px|{{figure number|3.9}}]]
===Anticlines and Synclines===
===Anticlines and Synclines===