Researchers have discovered an unexpected increase in the radioactive isotope beryllium-10 from 10 million years ago in Pacific Ocean rock samples. This anomaly may be linked to ocean current changes ...

Earth must have experienced something exceptional 10 million years ago. Our study of rock samples from the floor of the ...

Scientists have long sought reliable methods to date ancient geological events, but a surprising find in deep-sea samples may ...

The Pacific seafloor laid down around 10 million years ago is dramatically enriched in beryllium-10, compared to older and younger layers. The geologists who discovered this spike propose it could ...

to measure concentrations of the isotope beryllium-10 (10 Be) which reflects the duration of exposure of rock fragments to cosmic rays, indicating the time the rock remained stationary before falling.