#optically stimulated luminescence

[intelligentliving]

How Building Materials Could Act As Cameras

Imagine if bricks or other common building materials could act as cameras that can show their location and distribution of radioactive materials that once were in their locality. A team of researchers from North Carolina State University has developed a technique that turned that idea into a reality. The team...

[justadandak]

Professor Mark Bateman, from the University of Sheffield’s School of Geography and Planning, used a dating technique called Optically Stimulated Luminescence, to discover the burial age of individual grains of sand from eight samples throughout the site. His work showed that the archaeological site extended back from 12,000 years ago right through to around 150,000 years ago. These results were then corroborated by Electron Spin Resonance dating. “It is incredibly interesting to take a grain of ancient sand and be the first to know when it was deposited. It is even more so when the age of the sand changes what we know of how, and where, our ancient ancestors lived.”

Scientists find earliest evidence that our ancestors lived in rainforests 150,000 years ago | News | The University of Sheffield