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The posted B.Sc. thesis by John Crowley provides supplementary information referred to in Brief Matter Arising: Snowball Prevention Questioned, published in the December 18, 2008 issue of Nature.

New paleo-pCO2 proxy confirms elevated greenhouse forcing during Marinoan snowball meltdown



Two interesting symposia were held at the IGC in Oslo August 6-14, 2008: Stratigraphic Correlation of Neoproterozoic Strata and Neoproterozoic Ice Ages.

There was a symposium "Breakup of Rodinia and Snowball Earth" at the Gondwana 13 conference held in Dali, western China, 14-21 September 2008.

This web site contains a number of teaching slides available for your use. They are organized into
a 13 week course. You can view thumbnails and download slides here.

Educational Rock sample suite for Snowball Earth now available.
What is Snowball Earth?
When were they?
What caused them?
Could there be another?
How did life survive?
How did they end?
What are cap carbonates?
Evidence for them
Evidence against them
Whose idea anyway?
Did they kick-start life?


This web site was originally funded through research grants from the U.S. National Science Foundation (EAR - Geology & Paleontology Division) to Paul F. Hoffman, with additional funding from Harvard University. Site design, construction, maintainence, and additional financial support by R.S. Hildebrand. Contents Copyright © 2006-2020 and excerpt for an updated bibliography, original content is left as an historical record.