jeudi 29 juin 2017

New map provides clues into 500-million-year mystery in Earth's past

1,000 to 520 million years ago, Earth's climate was undergoing dramatic changes. From icy extremes in what some have termed Snowball Earth, to warmer conditions as an increase in oxygen led to the Cambrian explosion of biodiversity in life, it's a period of the planet's climate history we know little about. Scientists recently created the first map ever of plate tectonics during this time - and they say the map could help us learn about how plate tectonics influenced other Earth systems during this...

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