Super volcanoes Flashcards Preview

A2 Geography Hazardous Earth > Super volcanoes > Flashcards

Flashcards in Super volcanoes Deck (3):

What is a super volcano

A volcano that erupts more than 1000km3 in a single eruption event is known as a super volcano


Case study - Yellowstone super volcano

Activity begun about 2 million years ago
Led to formation of a giant caldera
2 eruptions further
Ash fall covered most of north America


What are the climate consequences is yellowstone erupts

Gases and tint particulates carried around globe and upper atm
This would have caused a noticeable decrease in global temperatures