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No. If a'a is present it will usually be only a minor portion of the volcano. A'a and pahoehoe are low-viscosity lavas with a low silica content They are usually found in shield volcanoes. A composite volcano is usually primarily composed of composed of tepha (loose ash, pumice, and lapilli), tuff (welded ash), and block lava (very viscous lava flows). This material is usually more viscous with more silica than what goes into a'a and pahoehoe.
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Does a composite volcano have an Aa type of lava?
A'a can occur at composite volcanoes, but block lava flows, which are far more viscous, are more common.
Is Mt Erebus an active volcano?
It is a lava flow, and has an AA (ah-ah) lava flow
Layers of thin runny lava that flow over a wide area before they cool and harden can build up what?
Lava Plateaus
What types of lava come from the San Cristobal volcano?
aa lava
Does the cotopaxi volcano have AA or Pahoiehoie lava?
Both.
Why is it that pahoehoe and AA lava are more frequent in shield volcanoes than in composite volcanoes?
Aa and pahoehoe lavas are both basaltic in composition. The lava from composite volcanoes is likely to be granitic.
What lava does a shield volcano erupt poehoehoe or AA?
Usually both.
What is the Rock type of mount stromboli?
A Stratovolcano Composite Volcano with aa lava
What kind of lava does Haleakala have?
it has aa lava, so it is not fluid like, but still basaltic.
Who tall is AA volcano?
A'a is not a kind of volcano. A'a is a texture that a lava flow can take on, characterized by a surface covered in sharp fragments. There is no particular height to the lava flow, or height of volcano from which such a flow erupts.
What ate the differences between pahoehoe and Aa what kind of eruption produces these types of lava?
Pahoehoe and AA lava are produced by quiet eruptions. This means that instead of a blast or explosion, the lava just flows out of the volcano. Pahoehoe lava is hot and flows quickly. AA lava is cooler in temperature and doesn't flow as quickly.
What is the difference between pahoehoe and AA lava?
The difference between Pahoehoe lava and AA lava is that pahoehoe lava is smooth and AA lava is jagged.
