Download Put your text here… - Social Circle City Schools

What landforms do
lava and ash create?
Volcanic Landforms Chapter 4 section 3 pg.
159
A. Landforms from Lava and Ash
GA Standard: S6E5:
Students will
investigate the
scientific view of how
earth’s surface was
formed
f. describe the effects
of volcanic eruption on
earth’s geological
features
1. Shield Volcanoes- a wide gently
sloping mountain, where lava
gently flows out and hardens
Vocab:
sheild volcano
Cinder cone
Composite volcano
Caldera
4. Lava Plateaus- High level areas
formed by lava
2. Cinder Cone Volcanoes- A
volcano with high viscosity lava
that builds up in a cone-shaped
mountain
3. Composite Volcanoes- A
volcano built with alternating
layers of ash and lava
5. Caldera- A huge hole left by the
collapse of a volcanic mountain
6. Soils from ash and lavaVolcanic soil is very fertile
Volcanic activity on and beneath earth’s surface create landforms.
EQ:How does lava
that hardens beneath
the surface create
landforms?
B. Landforms From Magma
1. Volcanic necks- magma
hardened in a volcanic pipe
● Dike- Magma that forces itself
across rock layers and hardens
● Sill- When magma squeezes
between horizontal layers of
rock
Volcanic neck
Dike
Geyser
Sill
Batholith
3.Batholiths-A mass of rock that
forms when a large body of
magma cools inside the crust
4. Dome Mountains-formed when
uplift pushed hardened magma
toward the surface
C. Geothermal Activity- : “earth”
“heat” magma heats underground
water
1. Hot springs- Hot ground water
rises to the surface and creates a
pool of water
EQ: What other
distinctive features
occur in volcanic
areas?
2. Geysers- A fountain of water and
steam that erupts from the ground
3. Geothermal Energy- Water
heated by magma being used as
energy: Iceland, New Zealand,
California
Geothermal activity
Hot Springs and Geysers are types of geothermal activity