Section #: 18.2
Intrusive Activity
Practice Test
1.
A __________ is a mushroom-shaped pluton with a round top and flat bottom.
SC.D.1.4.2
a.
stock
b.
sill
c.
laccolith
d.
batholith
Hint
2.
What type of texture do most plutons have?
SC.D.1.4.2
a.
fine grained
b.
intermediate grained
c.
pegmatitic
d.
coarse grained
Hint
3.
What type of igneous pluton is tabular and parallel to surrounding rock layers?
SC.D.1.4.2
a.
a batholith
b.
a dike
c.
a stock
d.
a sill
Hint
4.
What letter in the figure depicts the possible beginning of plutons like dikes and sills?
SC.D.1.4.2
a.
A
b.
C
c.
a stock
d.
none of the above
Hint
5.
A __________ is a large intrusive igneous rock body that covers at least 100 square km.
SC.D.1.4.2
a.
batholith
b.
laccolith
c.
sill
d.
dike
6.
A tabular pluton that cuts across preexisting rock is called a __________.
SC.D.1.4.2
a.
stock
b.
sill
c.
laccolith
d.
dike
Hint
7.
What is the name for an igneous intrusion that is smaller than a batholith but similar in shape?
SC.D.1.4.2
a.
dike
b.
sill
c.
laccolith
d.
stock
Hint
