https://geology.utah.gov/wp-content/uploads/ugs-logo-large.png00Utah Geological Surveyhttps://geology.utah.gov/wp-content/uploads/ugs-logo-large.pngUtah Geological Survey2016-08-09 14:50:202016-08-10 16:34:41What Happened in the Seconds, Hours, Weeks After the Dino-Killing Asteroid Hit Earth?