To help you master concepts from Chapter 15 (Geologic Structures), take this sample examination. Learn to think in three dimensions to do well on this exam!

1		Which of the following is a type of stress? Need a Hint?
			A)	compression
			B)	tension
			C)	shear
			D)	All of these are types of stress.
2		The compass direction of a line formed by the intersection of an inclined plane and a horizontal plane is called: Need a Hint?
			A)	dip.
			B)	strike.
			C)	the intersection angle.
			D)	the cross-cutting angle.
3		Folding occurs when rocks behave as: Need a Hint?
			A)	ductile solids.
			B)	frozen solids.
			C)	fluids.
			D)	brittle solids.
4		Anticlines: Need a Hint?
			A)	are downwarped folds.
			B)	are upwarped folds.
			C)	form in rocks as a result of brittle deformation.
			D)	form in rocks that are resistant to folding.
5		Synclines: Need a Hint?
			A)	form in rocks that are resistant to folding.
			B)	are upwarped folds.
			C)	are downwarped folds.
			D)	are never observed in nature.
6		In a syncline, the oldest rocks will be found: Need a Hint?
			A)	at the bottom of the fold.
			B)	near the axis of the fold.
			C)	on the limbs of the fold.
			D)	none of these
7		In a syncline, all rock layers: Need a Hint?
			A)	have horizontal dips.
			B)	have vertical dips.
			C)	dip away from the fold axis.
			D)	dip toward the fold axis.
8		In a syncline, the youngest rock layers: Need a Hint?
			A)	dip away from the fold axis.
			B)	dip away from the fold axis.
			C)	are found nearest the fold axis.
			D)	are found on the limbs of the fold.
9		In an plunging anticline, the fold axis plunges: Need a Hint?
			A)	toward the youngest rocks.
			B)	very steeply.
			C)	toward the flanks of the fold.
			D)	none of these
10		A structural basin is a special case of: Need a Hint?
			A)	a freak of nature.
			B)	an anticline
			C)	a syncline.
			D)	a dome.
11		A fault is observed where the hanging wall is displaced upward relative to the footwall. Need a Hint?
			A)	This is a right-lateral strike-slip fault.
			B)	This is a left-lateral strike-slip fault.
			C)	This is a reverse fault.
			D)	This is a normal fault.
12		The San Andreas Fault is an example of: Need a Hint?
			A)	a thrust fault.
			B)	a normal fault.
			C)	a reverse fault.
			D)	none of these
13		Faults where displacement is both vertical and horizontal are called: Need a Hint?
			A)	oblique faults.
			B)	slippery faults.
			C)	complex faults.
			D)	complex faults.
14		A fault that displays mostly vertical displacement is: Need a Hint?
			A)	a transform fault.
			B)	a strike-slip fault.
			C)	a dip-slip fault.
			D)	none of these
15		Strike-slip faults can also be: Need a Hint?
			A)	syncline.
			B)	anticlines.
			C)	transform faults.
			D)	dip-slip faults.
16		Faults result from: Need a Hint?
			A)	brittle deformation of rocks.
			B)	ductile deformation of rocks.
			C)	folding of rocks.
			D)	all of these
17		Fractures result from: Need a Hint?
			A)	ductile deformation of rocks.
			B)	slow strain rates.
			C)	brittle deformation of rocks.
			D)	all of these
18		Folds whose limbs are horizontal are known as: Need a Hint?
			A)	recumbent folds.
			B)	massively thrusted folds.
			C)	overturned folds.
			D)	horizontal layers.
19		Which of the following is not a fold type? Need a Hint?
			A)	thrust fold
			B)	dome
			C)	anticline
			D)	syncline
20		Which geologic setting has the most obvious dip-slip faults? Need a Hint?
			A)	The Canadian Shield
			B)	California
			C)	The Basin and Range Province of North America
			D)	The midwest United States