1 - Volcanic Eruption styles Flashcards
what are monogenetic volcanoes
volcanoes that erupt once
what are polygenetic volcanoes
volcanoes that erupt multiple times
e.g. of a explosive volcano
Mt. St. Helens
e.g. of non explosive volcano
hawaii
what is an extinct volcano
no chance or erupting again
what is a dormant volcano
haven’t erupted in last 10,000 yrs but can still erupt
what is an active volcano
has erupted in the last 10,000 years
what is a divergent plate boundary
plates moving apart from each other
where are most divergent plate boundaries found
in the ocean as tend to form oceanic crust
what is decompression melting
as plates move apart, bit below mantel has less pressure so melts and moves up
what are hotspots
areas of buoyant and hot magma that melt continental crust
what is a convergent plate boundary
plates move together and the denser one sinks
what type of volcano are found at convergent boundaries
stratovolacnos
what is the order of volcanic explosively
strombolian<vulcanian<plinian
