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[–] derram 0 points 0 points (+0|-0) ago 

https://archive.is/VgHNt | :

Map fills a 500-million year gap in Earth's history | Daily Mail Online

'To get at where plate margins were and how they changed, we looked for proxies – or alternative representations – of plate margins in the geological record. ', "Tectonic plates also influence how much of the sun's radiation gets reflected back out to space, changing the Earth's temperature."

'Many of the plate margins from 1000-500 million years ago lie in Africa, India, Arabia, South America and Antarctica. '

'They found out what sort of plate margins they were and how old they were. '

'Different water masses in the ocean contain subtly different elements and their various forms, known as isotopes. '

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