Study finds billion-year superocean cycles in Earth’s history

Curtin researchers believe that ancient supercontinents formed and then fell apart through alternating cycles spanning hundreds of millions of years that involved superoceans being swallowed and the restructuring of the Earth's mantle. The research, published in science journal Precambrian Research, found the supercontinents assembled and broke up through alternating processes of 'introversion' and 'extroversion'. The latter process…

from Climate Change Skeptic Blogs via hj on Inoreader http://bit.ly/2DQdc5V