Dr. Lynn Soreghan is a geologist at the University of Oklahoma. She has one of the more unique specialties I’ve come across. She studies deep time climate by looking at ancient dust. It was formed hundreds of millions of years ago but has now become rock or stone.
Be sure to check out the 2:05 mark where you can see what are essentially fossilized raindrops!!! Okay, not really, but you can see the imprint made when it rained millions of years ago in Colorado. It’s supercool.
We talked via Skype.