[Rockhounds] Dinosaur-era seafloor discovery could rewrite Earth’s history

[Kreigh Tomaszewski]

University of Maryland <https://today.umd.edu/> researchers have found
intriguing new evidence of ancient seafloor deep beneath the Earth's
surface. This discovery, made with seismic waves, suggests a complex and
layered history of our planet, offering insight into processes that
occurred during the age of dinosaurs.

Using innovative techniques, the scientists explored a mysterious part of
Earth's mantle that has remained hidden from view—until now.

The study, led by geology postdoctoral associate Jingchuan Wang, focused on
the East Pacific Rise, where two segments of the planet’s crust
<https://www.thebrighterside.news/space/near-earth-dwarf-planets-surface-is-90-covered-by-water/>
meet
in the southeastern Pacific Ocean. This previously unexamined area revealed
the presence of a dense patch of seafloor that had sunk hundreds of
kilometers into Earth’s interior.

The findings, published in the journal Science Advances
<https://www.science.org/doi/10.1126/sciadv.ado1219>, not only add to our
understanding of plate tectonics but also challenge previous theories about
the structure and behavior of Earth’s interior.


https://www.thebrighterside.news/post/dinosaur-era-seafloor-discovery-could-rewrite-earths-history/