Connecticut and Rhode Island are small but geologically diverse. Skehan (emeritus, geology and geophysics, Boston College), who has a featured trilobite genus named after him, introduces the states' intertwined geologic history. Then he takes readers on road tours of interesting features and historic sites, from the 375-million year old volcanic sediments of Narragansett Basin off Route 95 in Rhode Island, to iron ore mines along Route 44 in western Connecticut. Dinosaur State Park, Marble Valley, and Graniteville are along the way. The guide includes a geologic timeline, maps, color illustrations, and a glossary. Annotation 2008 Book News, Inc., Portland, OR (booknews.com)
