Landforms
Term for volcanic activity that does not occur at a tectonic plate boundary
Hot spot
What is the term for a liquid's resistance to flow?
Viscosity
Eruptions of ALL types release this volcanic material
Gas
What type of volcanoes are made at oceanic hot spots?
Shield volcanoes
A gentle eruption produces this type of volcanic material
lava flows
The most volcanically active region on Earth is called?
Ring of Fire
T/F?
Low viscosity liquids are thicker and flow more slowly than high viscosity liquids.
False!
Describe the appearance of an aa lava flow
Rough, jagged, sharp
What type of volcano is made of alternating layers of lava and pyroclastic material?
Composite or stratovolcano
Describe the appearance of a pahoehoe lava floe
smooth or wrinkled
High viscosity magmas are ________ explosive than low viscosity magmas.
more
A violent, explosive eruption produces this type of volcanic material
pyroclastic flow
This type of volcano is a crack in the ground that erupts gently
Fissure
Resulting from differences in temperature, this process drives the movement of tectonic plates
Mantle convection
What landform is made when an oceanic plate and a continental plate converge?
continental arc
What style of eruption is a low silica magma likely to produce?
Gentle
Name the three components of pyroclastic flow in order from largest to smallest
Volcanic bombs, lapilli/cinders, ash
What type of volcanoes form at subduction zones?
Composite/stratovolcanoes
What landform is made an oceanic plate subducts beneath another oceanic plate?
Volcanic island arc
This phenomena creates volcanic hot spots
mantle plume
Which type of crust produces more explosive eruptions?
continental/granite
Name the 2 types of lava flows.
Proper pronunciation is REQUIRED!
Aa
Pahoehoe
List the 3 types of mountainous volcanoes in order from smallest to largest in size
Cinder cone, composite/stratovolcano, shield volcano
This type of volcano is the result of a single eruption event
Cinder cone