a: volcano dome ~
b: congealed, dried toothpaste
What:
"If you imagine a volcano is like a tube of toothpaste then a lava dome is like the congealed, dried toothpaste that has come out of the tube. It doesn't move like a lava flow but grows from the inside as new magma comes up and pushes the already cooled magma upwards and outwards"
Useful?
Writer: GNS Science volcanologist Brad Scott
LCC:
Where:
Date: Jan 19 2017 2:13 PM
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