#thunderbay
Sinkholes are like a time capsule, taking us back to how Earth may have appeared approximately 2.5 billion years ago, at the beginning of the Proterozoic Eon.
Since the sinkholes were discovered in 2002, scientists from around the world have collaborated with Thunder Bay National Marine Sanctuary to research this time capsule.
Tue, 14 Mar 2017 10:15:46
Sat, 04 Mar 2017 11:39:21