Rivers Sustained 3.5 Billion Years
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geochemical dataScience News
•1mon ago
Science
Science
Ancient rocks reveal when rivers began pouring nutrients into the sea

84% Informative
New find comes courtesy of ancient rocks in China and South Africa .
Water chips away at rocks on land, removing minerals and washing them away.
Change in rock chemistry around that time provides the earliest known chemical evidence for the weathering of Earth ’s continents.
Earth formed about 4.54 billion years ago .
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