Browsing Tag
stratigraphy
2 posts
Study charts 540 million years of rapid sea level change
A breakthrough study quantifies 540 million years of rapid sea level fluctuations, revealing how ancient ice ages caused dramatic 100-meter shifts in Earth's coastlines.
Age of oldest known human footprints in Americas confirmed by new study
By analyzing ancient mud, scientists have added a powerful new line of evidence confirming that humans walked in North America during the peak of the last ice age.