March
26
/ 2022
The geologic record of Earth’s history is 4.6 billion years long. It contains the history of life on Earth and the formation of the continents and oceans which cover the planet today. There are, however, gaps in this history, usually created by erosion. These are called unconformities. One of the largest of these unconformities is simply called the Great Unconformity. It is called such because as many as 1.2 billion years of Earth’s history are in this gap, about a fifth of our planet’s history. What could have caused this gap? One possibility is erosion related to the breakup of an ancient supercontinent known as Rodinia. Rodinia and the Ebb and Flow of Supercontinents Explaining the breakup of Rodinia requires
