Snowball Earth: the big freeze
Evidence for Snowball EarthEvidence has been found in the rock fragments (tillites) carried by moving ice, and pebbles and boulders (dropstones) carried and deposited by icebergs. This evidence has been found by geologists across the world.
Theory of Snowball EarthWhilst evidence has been found, the theory of Snowball Earth is still a relatively new scientific hypothesis, and large uncertainties on its causes remain. This makes it an exciting research topic in Earth sciences today, attracting the attention of many top researchers. Due to their sheer scale Snowball Earth ice ages were extreme events, but what possible link could they have to the emergence of life?
Extreme Geological Events
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