Pacific Ocean research: An unexpected anomaly was found in the Pacific Ocean; could be a global time marker

Earth must have experienced something exceptional 10 million years ago. Our study of rock samples from the floor of the Pacific Ocean has found a strange increase in the radioactive isotope beryllium-10 during that time. This finding, now published in Nature Communications, opens new pathways for geologists to date past events gleaned from deep within the oceans. But the cause of the beryllium-10 anomaly remains unknown. Could it have been major shifts in global ocean currents, a dying star, or an interstellar collision?

Extremely slow rocks deep in…