Hot Spots, Rift Valleys and Supervolcanoes Flashcards
1
Q
What is a hotspot?
A
A fixed area of intense volcsnic activity where magma from rising lava plumes reach the Earth’s surface
EXAMPLE: hawaiian hotspot
2
Q
Example of a Rift valley
A
E. African rift Valley
4000 km long and contains many active volcanoes e.g. Kilimanjaro
3
Q
Define supervolcano
A
A volacano that erupts more than 1000 km^3 of material in a single eruption
EXAMPLE: yellowstone in Wyoming has a caldera that is 75km in diameter
