DEEP TIME Shiels THE SMELL OF RAIN I share your love of the smell of rain – that earthly fragrance – that fills the air when rain hits dry ground…. more Photo:Ryszard on Flickr (Click to enlarge) Geologic Time Scale: source Geologic City: A Field Guide to the GeoArchitecture of New York. The Age of the Anthropocene is a name for the geological epoch that describes human’s role in actively changing Earth’s makeup.