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Geology
2 min read
On the walls of the Grand Canyon and across various continents, Cambrian strata rest directly on ancient basement rocks, hiding a fifth of the planet's history.
Geology
2 min read
A colossal time gap where strata spanning more than ten centuries of millions of years vanished on a planetary scale.
Geology
2 min read
How up to 1,200 million years of rock strata vanished across the planet before the Cambrian explosion.