There is a chemical smell in the basement of Shepherd Labs at the University of Minnesota, and, not surprisingly, a big, humming lab with powerful-looking equipment and a radiation symbol on the door. There is no natural light whatsoever. Through some double doors is found an tiny office with (and this is just the surface layer) a scrap metal heap in one corner, crowned by a mounted metal vacuum tube and a carefully balanced, nonfunctioning black bike; some lead plates; a glacier of papers and magazines; a can of Mod Podge decoupage glue; several gutted laptops; two desktop computers with three plastic "Star Wars" toys on top of the monitors; several industrial-sized plastic chemical containers, and a box of slides of very thin rock samples from New Caledonia. New Caledonia is near Papua New Guinea. After some excavation, a box of very rare Polaroid film was discovered, and below that, a desk.
Which is to say, a visitor found geologist Nick Seaton in his natural, underground, sedimentary environment.
It was the perfect setting to learn something about caving, a hobby that, like Seaton's subterranean office, combines curiosity with a whole lot of practical, scientific applications.
Seaton is officially Dr. Nicholas Seaton, a department safety officer in the Characterization Facility in the College of Science and Engineering. He is scruffy, attired in a T-shirt with cartoon Tyrannosaurus rexes at a recent meeting, and he's exceedingly knowledgeable about caves. He's also British. Seaton emigrated to Minnesota from Liverpool, England, in 2007 for the job he currently holds at the U, which, in part, involves discerning the preferred orientation of rock crystals.
He described his introduction to caving like this: "I'm a geologist by training, interested in rocks and fossils and things. When I was a college freshman in Liverpool they invited us all into a big hall to choose a hobby. One of the booths was the caving club. I thought, Why the hell not? Give it a go. You didn't even have to pay to see if you liked it. You could go on a trip and learn how to use ropes and ladders. It was lots of fun. I joined the club, and also took up rock climbing."
Soon after his move, Seaton, 36, joined the Minnesota Speleological Survey. It's the local grotto, in caver speak, of the National Speleological Society. Seaton served as the club's president until last August. The group has 40 to 50 active members.
"Nick brought a lot of experience with ascending and descending," said MSS vice president Al Savage. "In England, they have more pits. He was able to train us in single rope technique. He's definitely one of the most experienced cavers in Minnesota. If there was an emergency, he's one I would call."
While certainly knowledgeable and experienced, Seaton stokes his interest in caving through the things he doesn't know. "I've been the first person ever in a cave — that's fun. You don't know what's going to be down there. Caving is one of the few unknowns. It's like mountain climbing, but inverse — you can see where you're going on a mountain. You don't know how far a cave goes. It's fun to explore stuff that most people will never see, and it's very pretty down there."