The Best in Science News and Amazing Breakthroughs
The most high-resolution map yet of the underlying geology beneath Earth's Southern Hemisphere revealed something we previously never knew about: an ancient ocean floor that may wrap around the core.
Seismic waves from earthquakes in the southern hemisphere were used to sample the ULVZ structure along the Earth's core-mantle boundary. "Analyzing of seismic recordings from Antarctica, our high-definition imaging method found thin anomalous zones of material at the CMB everywhere we probed,""The material's thickness varies from a few kilometers to of kilometers. This suggests we are seeing mountains on the core, in some places up to five times taller than Mt. Everest."
While the sunken crust isn't close to recognized subduction zones on the surface – zones where shifting tectonic plates push the rock down into Earth's interior – simulations reported in the study show how convection currents could have shifted the ancient ocean floor to its current resting place.It's tricky to make assumptions about rock types and movement based on seismic wave movement, and the researchers aren't ruling out other options.
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Earth’s inner core has been spinning slowly since over a decade: StudyThe slowing down of the inner core can likely “alter the length of a day by fractions of a second” on the Earth's surface.
Read more »
Inescapable Conclusion: USC Researchers Prove Earth’s Core Is Losing SpeedScience, Space and Technology News 2024
Read more »
It's Official: The Rotation of Earth's Inner Core Really Is Slowing DownThe Best in Science News and Amazing Breakthroughs
Read more »
Earth's Core Is Slowing Down—And It May Change Day's Length'The result was inescapable,' researcher John Vidale said. 'The inner core had slowed down for the first time in many decades.'
Read more »
Life Beyond Earth: Webb’s Spectroscopic Hunt for Earth-Like PlanetsScience, Space and Technology News 2024
Read more »
Travis Kelce Has Wrapped Ryan Murphy’s GrotesquerieSources exclusively told Us Weekly that Travis Kelce had an ‘incredible time’ filming Ryan Murphy’s new FX horror series, ‘Grotesquerie’
Read more »