Tuesday, May 20, 2008

Another Fun Exam Question

Consider the interpretive map of North America here:
This geological interpretation is meant to represent the end of the Cretaceous, about 65 million years ago. Is the representation of Bering Strait and Beringia accurate? Why or why not?


2 comments:

Julie Fronzuto said...

According to this page: http://weber.ucsd.edu/~dkjordan/arch/beringia.html

the earliest human migrations may have occurred 38,000 years ago. However, a quick search online did not reveal the ages that Beringia existed. Given a lack of time to adequately research this question I am unable to determine if this map is an accurate representation of Beringia 65mya

A question I would have would be: When did the terranes shown here aggregate?

Anonymous said...

You can see the lines defining the States of the U.S. and the provinces of Canada - which were not around 65 mya.