Why are plug dome volcanoes considered dangerous?
Plug domes form where extremely viscous silica-rich magma pushes up into the vent of a volcanic cone but does not flow further. Great pressures build up, producing the potential for extremely violent explosive eruptions, including pyroclastic flows.
You might also like to view...
Eurypterids are a subclass of the cephalopods that are excellent guide fossils. Indicate whether the statement is true or false
What type of ocean does not support a deep scattering layer?
a. A temperate ocean b. A tropical ocean c. An arctic ocean d. An equatorial ocean e. All oceans have a deep scattering layer.
Describe the three processes of energy transfer
What will be an ideal response?
The doctrine of _________ held that the major features of the surface of the earth were created by sudden, short-lived, violent events.
a. uniformitarianism b. gradualism c. metamorphism d. catastrophism e. evolution