Emerging evidence suggests that plate tectonics, or the recycling of Earth's crust, may have begun much earlier than ...
Studies indicate that around 3 billion years ago, Earth’s crust began to melt and reform, a potential sign of tectonic ...
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The plate tectonics that cause earthquakes, build mountains and split continents may have started when Earth was in its infancy, new research finds — significantly earlier than many scientists ...
The Precambrian encompasses 86 percent of the history of Earth. As its name implies, this includes all of geological time prior to the Cambrian period. Hadean Era (4,550-3,850 mya) The Precambrian ...