"This volume is composed of guides to the lavas of the Columbia River basalts, megaflood landscapes of the Channeled Scablands, Mesozoic accreted terranes, metamorphic Precambrian Belt and pre-Belt rocks, and other features of this tectonically active region"--

The geologic history of the Pacific Northwest is as unique as the region itself. Completely reorganized and revised, the Third Edition of Geology of the Pacific Northwest brings the area’s volcanism, earthquakes, tsunamis, and geologic environmental issues into sharp focus. William and Elizabeth Orr provide a singular perspective and explore the Pacific Northwest writ large, including Southeast Alaska, British Columbia, Washington, Oregon, Idaho, and northern California. Descriptive and detailed photographs of the formations and terranes of each subregion are included, along with color plates that illuminate and expose the fundamental processes that shaped Pacific Northwest geology. The text reveals the geological origins, geographic features, phenomena, and natural resources of areas throughout the region. As urban development continues to expand in the tectonically active Pacific Northwest, environmental concerns and geologic hazards will grow more and more important. The authors’ central theme that continental plate tectonics are the fundamental processes of Northwest geologic history leads to deeper understanding of the region’s geology and new insights in volcanic eruption prediction, disaster preparedness, and the environmental effects of mining.

The tale of the Northwest's geology began more than two billion years ago when an ancient continent split, creating oceanfront property in what is now western Idaho. Pacific islands mashed into that coastline, making large parts of Washington and Oregon.

The Restless Northwest provides a brief, easy-to-follow overview of the geologic processes that shaped the Northwest. One of the attractions of the Northwest is its varied terrain, from the volcanic Cascade Range to the flood-scoured scablands of eastern Washington and the eroded peaks of the northern Rockies. These vast differences are the result of a collision of the old and the new. The western edge of Idaho was once the edge of ancient North America; as eons passed, a jumble of islands, minicontinents, and sediment piled up against the old continental edge, gradually extending it west to the present coastline. Figuring out how and when these various land forms came together to create the Northwest took much geological detective work. Unlike many geology books that focus on rocks, The Restless Northwest emphasizes the human drama of geology. The narrative is sprinkled with firsthand accounts of people involved in the exciting geological discoveries made in recent years. Hill Williams uses an informal conversational style to explain complex processes to a general readership. He enlivens the story of long-ago geologic events with fascinating asides on everything from enormous undersea tube worms to the Willamette meteorite, the largest ever found in the United States. Interested readers will discover much about Pacific Northwest geology without getting bogged down in an overabundance of details and scientific terms. Winner of the 2003 Washington State Book Award.

The 20 chapters of The Geology of Washington and Beyond�an outgrowth of a geologic symposium�present the substantial advances in recent research on the geologic history of Washington State. The 32 contributors used new conceptual developments such as sequence stratigraphy, identification and matching of terranes, and neotechtonics, as well as breakthroughs in technology such as lidar mapping, paleomagnetism, and new methods of radiometric dating, to examine the fascinating geology of Washington State and beyond. Also included is geologic mapping in areas previously known only by reconnaissance. This book will influence resource management decisions, as well as disaster and land-use planning in the region. The introductory chapters make the book accessible for undergraduate courses in geology and to the general public.