(Phys.org) —Back in 2004, German scientists discovered traces of supernova ejecta that had been deposited in the deep-sea ferromanganese crust of the pacific ocean. They dated the supernova event to 2 ...

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 ...

Debris is still raining down on Earth more than 100 million years after the giant cosmic explosion that created it. A study published this week in Nature Astronomy by an international team reached ...

Accelerator mass spectrometry (AMS) measurements of this ferromanganese crust from the Pacific Ocean have revealed interstellar iron-60, manganese-53, and plutonium-244. Included are atoms dating back ...

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 ...

A slice of ferromanganese crust from the Pacific Ocean was analyzed using the MIT team’s SQUID microscope. The top image shows a portion of the image of the slice taken with an electron microprobe.

The average Nd and Hf isotopic compositions of oceanic sediments are difficult to evaluate because of a paucity of ɛ Nd and ɛ Hf data and the large range in these data. Plank and Langmuir 8 calculated ...

Manipulator arm on the HyBIS hybrid remotely operated vehicle collecting crust samples from the Rio Grande Rise Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...