fossils marine algae are older 25 billion years were found while ocean crust not older

Fossils of marine algae that are older than 2.5 billion years were found while the ocean crust is not older than 180 million years. What does this indicate with respect to what happens to older ocean crust.
 
Do you need a similar assignment done for you from scratch? We have qualified writers to help you. We assure you an A+ quality paper that is free from plagiarism. Order now for an Amazing Discount!
Use Discount Code "Newclient" for a 15% Discount!

NB: We do not resell papers. Upon ordering, we do an original paper exclusively for you.