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Crustal Deformation/Mountain Building

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Total cards: 24•Content version: v3•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

Types of stress:

Back (Answer)

compression; tension; shear

#2
Front (Question)

Compression stress causes:

Back (Answer)

reverse faulting

#3
Front (Question)

Tensional stress causes:

Back (Answer)

normal faulting

#4
Front (Question)

Shear stress causes:

Back (Answer)

strike-slip faulting

#5
Front (Question)

Strain is caused through the force of ___ stress

Back (Answer)

differential stress, which changes a rock’s shape

#6
Front (Question)

Types of deformation

Back (Answer)

ductile, brittle, elastic

#7
Front (Question)

Higher temp =

Back (Answer)

more ductile

#8
Front (Question)

+ Confining pressure =

Back (Answer)

decreases brittle deformation

#9
Front (Question)

Folds result from -

Back (Answer)

deformation

#10
Front (Question)

Hinge line

Back (Answer)

Each layer is bent around an imaginary plane with the center being a hinge line

#11
Front (Question)

Axial Plane

Back (Answer)

surface that connects all hinge lines (Runs through hinge lines)

#12
Front (Question)

Anticlines

Back (Answer)

form from the upfolding or arching of sedimentary layers; upside down parabola with a vertical axial plane

#13
Front (Question)

Synclines

Back (Answer)

downfolds; parabolas with a vertical axial plane

#14
Front (Question)

Inclined axial planes

Back (Answer)

results from asymmetrical folds

#15
Front (Question)

Overturned folds

Back (Answer)

asymmetrical folds where both limbs dip in the same direction (not as severe as recumbent folds) (one limb tilted psast the vertical (past 90 degrees - rock layers on oneside are upside down)

#16
Front (Question)

Recumbent folds

Back (Answer)

Type of isolclinal fold where the limbs are horizontal and paralell

#17
Front (Question)

Plunging Hinge lines

Back (Answer)

Hingelines slope downward

#18
Front (Question)

Monoclines

Back (Answer)

step-like folds

#19
Front (Question)

Domes

Back (Answer)

a type of fold where layers dip away from a central point

#20
Front (Question)

Basins

Back (Answer)

a type of fold where layers dip towards a central point

#21
Front (Question)

Isoclinical

Back (Answer)

a type of fold where both limbs are parallel to each other

#22
Front (Question)

Chevron

Back (Answer)

an angular fold with straight limbs and sharp hinges like a “V” or “Z” shape

#23
Front (Question)

Joints

Back (Answer)

fractures (archers N.P.); produced when rocks in the outer crust are stretched and deformed by tensional stress, causing brittle failure

#24
Front (Question)

Faults

Back (Answer)

fractures along which movement has occurred