3 ms·
> OSL measures when minerals such as quartz were last exposed to sunlight. Over time, these minerals build up a tiny store of energy while buried. When stimulat
by mitthrowaway2 8mo ago
> OSL measures when minerals such as quartz were last exposed to sunlight. Over time, these minerals build up a tiny store of energy while buried. When stimulated with light or heat in the laboratory, the minerals release this energy as a faint glow, which tells experts how long they have been underground.
Now that's just magic, plain and simple.
- aa-jv 8mo agoIt sure is. Plus, a little math: Age (years) = Equivalent dose (Gy) ÷ Dose rate (Gy per year or Gy/ka)
- bsder 8mo agoTIL. And that petrified mud wasp nests can be used to date things. Wild. https://en.wikipedia.org/wiki/Optically_stimulated_luminescence https://en.wikipedia.org/wiki/Optically_stimulated_luminesce...