From the author of lnsectopedia, a powerful exploration of loss, grief, endurance, and the absences that permeate the present.Unconformities are gaps in the geological record, physical evidence of breaks in time. For Hugh Raffles, these holes in history are also fissures in feeling, knowledge, memory, and understanding. In this endlessly inventive, riveting book, Raffles enters these gaps, drawing together threads of geology, history, literature, philosophy, and ethnography t