SNOWBALL EARTH

Eyles & Januszczak wonder, "Where is the evidence of global glacial?"

Hoffman shows them where it is.

"Snowball Earth on Trial"?

Snowball Earth' Theory Out In The Cold??

Hoffman disagrees . . . says theory is fine

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

There will be a symposium "Breakup of Rodinia and Snowball Earth" at the Gondwana 13 conference to be 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 is funded through a research grant from the U.S. National Science Foundation (EAR - Geology & Paleontology Division) to Paul F. Hoffman, with additional funding from Harvard University. Site design, construction, and maintainence by R.S. Hildebrand. Contents Copyright © 2006-2007