University of Iowa: Iowa Geological Survey ‘rock library’ full of stories

University of Iowa: Iowa Geological Survey ‘rock library’ full of stories
. “The IGS warehouse, located at the UI Research Park, is filled with an estimated $250 million worth of rock and soil samples collected during the drilling of roughly 40,000 borings across the state, mostly for water wells…. This summer, core samples such as the one from the Manson Impact Structure are being photographed and logged by UI students to create an online GeoCore database. The digital database will complement the warehouse, a repository of the local geological past that’s shaping Iowa’s future.”