To further enable these measurements, we developed a laser fluorination method to reproducibly measure the triple oxygen isotope composition of silica frustules. While the δ13C of the organic matter ...

Oxygen-28 is not the only isotope where 20 neutrons no longer seem to be magic. In a phenomenon known as the island of inversion, isotopes of neon, sodium, and magnesium with 20 neutrons also show ...

Scientists have used clues locked into tree rings to reveal major changes in the Amazon's rainfall cycle over the last 40 ...

Demand for the ornaments, jewelry, and other luxury items carved from the ivory in elephant tusks has led poachers to ...

Stable isotope analysis could offer a new tool in the fight against wildlife poaching by helping differentiate legal mammoth ...

A new tool to detect elephant tusks disguised as legal mammoth ivory has been deployed in the battle against poaching. Stable ...

The team looked in the dead zones for signs of denitrification, which occurs when oxygen content is so low that microbes instead use nitrate to power their biological activity. Nitrogen has two stable ...

New research from the University of California, Davis, the Chinese Academy of Sciences and Texas A&M University reveals that ...

Ancient carbon surges depleted ocean oxygen and stalled marine life, and new research warns today’s emissions could cause a ...