A useful overview of geological history, although a little inconsistent in use of some names, eg Euramerica is sometimes referred to as Laurussia, which I believe is the same thing. National Museum of Natural History Geologic Time Site. … Continue reading
The Smithsonian National Museum of Natural History has a useful introduction to geological time. Geologic Time: The Story of a Changing Earth. … Continue reading
The researchers found that in the first 1.5 billion years or so of the Earth’s history, the average net rate at which new continental crust formed remained high, at about 0.7 cubic miles (3 cubic kilometers) annually, enough to establish … Continue reading