Name: ___________________________ Block: _____ Date: ____________________________________
EARTH SCIENCE 11
Chapter 14 Volcanism Review
Exercise 1: Match the term with the phrase.
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1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
Magma
Lava
Felsic
Mafic
Ash
Tephra
Sill
Lapilli
Dike
Block
Neck
Stock
Batholith
Bomb
Laccolith
Pluton
Hot spring
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
m.
n.
o.
p.
q.
A spring where water temperature is up to 100ᵒC
A solid piece of rock thrown into air during an eruption
Largest of all igneous intrusions
Solid fragments of lava produced in explosive eruptions
Flat sheets of igneous rock that cut across rock layers
Molten rock within the Earth
Molten rock on the Earth’s surface that is thick and stiff
Fragment of lava that congeals in the air
Flat sheets of igneous rock parallel to the intruded rock layers
Sill that forms domelike mass
Molten rock on Earth’s surface
The smallest piece of tephra
Pluton whose exposed area is less than 100 sq. km
Piece of tephra between 2 and 64 mm
Rock crystallized within another rock
Hardened lava in the vent of an eroded volcano
Molten rock on Earth’s surface that is thin and fluid
Exercise 2: Answer the questions.
1. What is the difference between magma and lava?
a. Lava: ________________________________
b. Magma: _____________________________
2. What is the difference between volcanics and plutonics?
a. Volcanics: ____________________________
b. Plutonics: ____________________________
3. Describe the difference between felsic and mafic lava.
Silica content
Color
a) Felsic lava
b) Mafic lava
Explosiveness
Volcano type(s)
4. Define the terms:
a. Aa: _____________________________________________________________________
b. Pahoehoe: _______________________________________________________________
c. Pillow lava: ______________________________________________________________
Name: ___________________________ Block: _____ Date: ____________________________________
EARTH SCIENCE 11
d. Columnar jointing: ________________________________________________________
e. Tephra/pyroclastics: ______________________________________________________
f.
Ash: __________________________________________________________________
g. Lapilli: _________________________________________________________________
h. Block: _________________________________________________________________
i.
Bomb: _________________________________________________________________
j.
Ash flow/pyroclastic flow/nuee ardente: _____________________________________
k. Ash fall: ________________________________________________________________
5. What gases does magma release as it reaches the surface? (name 7)
______________________________________________________________________________
______________________________________________________________________________
6. What type of eruption zone is this?
a) ________________________________
b) ________________________________
c) ________________________________
d) ________________________________
7. What kind(s) of eruption form(s)…
a. Shield volcanoes and cinder cones: ________________ and _______________________
b. Strato-composite volcanoes and cinder cones: _______________ and _______________
c. Basalt floods: ________________________
d. Plug/lava domes: _____________________