|MadSci Network: Earth Sciences|
Every reference to the theories of continental drift I have seen only shows the movement of Earth's continents over the last 250 million years or so (since the time of Pangaea during the Permian/Triassic), and two maps of 370 and 550 million years ago. There seems to me that there is no other data regarding pre-Cambrian continental motion. Has any effort been made to extrapolate the approximate locations and movements of the continents during the Archean era, say, up to one billion years ago? Is there too much uncertainty and not enough evidence for a reasonable estimate to be made, or is there simply no interest in plate tectonics prior to the Paleozoic? In addition, is there uncertainty about the predictions of continental drift in the future, or has the course of plate tectonics over the next 250 to 300 million years been calculated with confidence in the accuracy? (Beyond that, there is little reason to know - within 250 million years, the sun will begin to destroy life on Earth, culminating in the boiling away of our oceans and extinction of all life on Earth within one billion years from now.)
Re: A question on continental drift in the distant past...
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