0
Volcanoes are named after the lava that comes out.viscous volcanoes (or acid and dome) are the same thing.the lava comes to the surface close to subduction zones,which are found at convergent plate boundaries.it is high in silica content and does not flow easily.it contains gas which cannot escape easily,so eruptions may be explosive and violent.eg Caribbean volcanoes
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
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.
What is the consistency of lava in the composite volcanoes?
Composite volcanoes are found on destructive plate margins , where the oceanic crust sinks beneath the continental crust. Composite volcanoes have the following characteristics: Acidic lava, which is very viscous (sticky). Steep sides as the lava doesn't flow very far before it solidifies
What are the difference between acid lava and basic lava?
Acid lava comes from composite cones,is slowly moving and viscous while basic lava comes from shield volcanoes,is non viscous, runny and flows faster
Did AA lava form composite volcanoes?
No, generally not. Most composite volcanoes erupt more viscous, high-silica material than what would form a'a. So block lava would be more common.
Is composite volcano lava viscous or fluid?
viscous
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.
What is the consistency of lava in the composite volcanoes?
Composite volcanoes are found on destructive plate margins , where the oceanic crust sinks beneath the continental crust. Composite volcanoes have the following characteristics: Acidic lava, which is very viscous (sticky). Steep sides as the lava doesn't flow very far before it solidifies
What are the difference between acid lava and basic lava?
Acid lava comes from composite cones,is slowly moving and viscous while basic lava comes from shield volcanoes,is non viscous, runny and flows faster
Did AA lava form composite volcanoes?
No, generally not. Most composite volcanoes erupt more viscous, high-silica material than what would form a'a. So block lava would be more common.
Is composite volcano lava viscous or fluid?
viscous
Are hawaiian volcanoes low or high in viscosity?
A lava dome indicates lava with a very high viscosity. A low viscosity lava would flows away rather than build into a dome.
Difference between viscous and non viscous lava?
Viscous lava is very sticky and thick and is more felsic (ie it contains more silica) than non-viscous lava. This type of lava makes for a very explosive volcano, because it's so sticky that it sticks to itself and can't exit the volcano until it explodes violently. Non-viscous lava is more runny and is more mafic (has more iron, less silica). Volcanoes with non-viscous lava are less explosive because the lava just runs out slowly and no pressure builds. The Hawaiian islands are formed from volcanoes with non-viscous lava.
Are composite volcanoes predominantly erupting with lava flows?
No. Composite volcanoes erupt mostly ash and pumice.
Is composite volcano made of entirely running lava?
Shield Volcanoes are made out of running lava. Not composite.
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 volcanoes are formed by explosive eruptions that are followed by lava outpourings?
composite volcanoes
What forms from lava that is higher in water and silica content than lava that forms shield volcanoes?
Cinder-Cone Volcanoes and Composite Volcanoes
