http://sciencedaily.i2p/releases/2023/05/230510120539.htm
They found that, following the increase in phosphorus at the time of the Cambrian explosion, contents of this key-nutrient in crustal rocks have continued to grow up until the present-day. "From about 540 million years onwards, we see that life transformed the composition of the upper part of Earth's crust," said co-author Oliver Shorttle, who is jointly based at Cambridge's Department of Earth Sciences and Institute of Astronomy.