Chapter volcanoes - PREMIDTEM

Question 1

shield volcano

Answer 1

extensive, relatively flat, multiple layers of BASALT

Question 2

pahoehoe vs aa

Answer 2

pahoehoe more viscous, ropey texture, doesn’t make a flat surface when it dries

aa - crumbly

Question 3

what is pyroclastic flow

Answer 3

cloud of smoke like things that you cant outrun

Question 4

Groups of lava dome

Answer 4

composite, shield, lava dome, cinder cone

Question 5

Composite/stratovolcano

Answer 5

With or without crater/ caldera

Steep top, , flattening on flanks, explosive eruptions, andesite, rhyolite, pyroclastic flow … then an after eruption

Question 6

Shield volcano

Answer 6

Highly fluid and non-threatening… if the lava comes out relatively fluid, its more safe than the explosive ones.. Have time to walk away.
Shrinkage of magma when it cools, gets some hexagonal pattern

Question 7

super volcano

Answer 7

super explosive

Question 8

Hydorthermal activity

Answer 8

terrestrial and submarine

Question 9

Geysers are a form of ___ activity

Answer 9

hydrothermal