Snowball Earth. Presented by Mindi Purdy and Jen Ulrich. Theory of Snowball Earth. Many lines of evidence support a theory that the entire Earth was ice-covered for long periods 600-700 million years ago.
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Presented by Mindi Purdy and Jen Ulrich
Paleomagnetism shifting tectonic plates would continue to build volcanoes and to supply the atmosphere with CO2.
Extremophiles are organisms that live in extreme conditions. Evidence for survival of these organisms during snowball earth events are found in these areas:
Inertial-Interchange True Polar Wander:
Evidence for open ocean at equator:
Survival of life without sunlight/oxygen:
Research Question: Is there a correlation between isotope data and the Varanger Glaciation in the Vendian Period?