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Ohios bedrock reveals a rich story of the ancient landscapes and animalsmassive meat-eating reptiles, footlong clams, lumbering mammothsthat existed thousands to hundreds of millions of years ago. Fluctuating seas full of marine life, widespread floodplains and rivers choked with sediment, and mile-thick ice sheets from the north all shaped Ohios present landscape. But Ohios geologic tale has a human side, too. Native Americans fashioned razor-sharp flint spear points; oil, gas, and coal fueled several economic booms; and sandstone and limestone built communities and thriving economies.
The 25 road guides of Roadside Geology of Ohio, complete with 59 maps and figures and 172 photographs, lead you from one corner of the state to the otherfrom the flat till plains of the west to the hilly eastern Allegheny Plateau, and from the Ohio River valley to the Lake Erie shoreline. Mark Camps clear writing explains how caverns and disappearing streams form in karst; why mud cracks, ripple marks, and cross-bedding layers are entombed in sedimentary rock; and how grooves up to 10 feet deep were gouged into the limestone of Kelleys Island. From deserted boomtowns to Ohios big cities, Roadside Geology of Ohio thoroughly reveals the Buckeye States fascinating and dynamic geology.