What types of geologic evidence support the Snowball Earth model ...

[Mr. Wonderful]

What types of geologic evidence support the Snowball Earth model for the Late Precambrian glaciations?
 
  What will be an ideal response?

Question 2

A La Nia tends to encourage dry conditions in which of these areas?
 
  A) The southern United States
  B) Pacific Northwest of the U.S.
  C) Indonesia
  D) South Asia

[gcook]

Answer to Question 1

Paleomagnetic evidence indicates that glaciers existed at or near the equator during this time. Additionally, banded iron formations indicate an anoxic deep ocean, which could have resulted from a separation of the ocean from the atmosphere resulting from the ice, and the placement of cap carbonates above glacial layers agrees with the CO2 build-up that could have been the means of escape from this Snowball Earth episode.

Answer to Question 2

Answer: A

[Mr. Wonderful]

Thanks for the timely response, appreciate it

[Dinolord]

Gracias!