This text takes a historical approach to the development of ideas about history. This is particularly evident in the first seven chapters, allowing the reader to recapture the development of major principles and concepts developed by past generations. The authors focus on "how do we know?" as much as "what do we know?", emphasizing concepts, not just information. Three maxims guide the writing: new concepts of time; the universality of irreversible evolutionary changes; and the importance throughout time of ecological interactions between life and the physical world. Most chapters feature a summary time-line that puts the entire sequence of events into a quick visual-reference frame. The text also contains end-of-chapter citations, case studies and chapter summaries. A key chapter suggests some conclusions following from a study of earth history. In this edition, the chapter on evolution and all sections dealing with the history of life have been rewritten, emphasizing the dynamic new ideas that have come out of paleobiology in the past decade. Chapters on Mesozoic and Cenozoic tectonics, particularly material covering the Cordilleran region, have been rewritten to reflect major changes in our understanding of those topics. Developments in paleoclimatology are also included.

Evolution of the earth

Science & Math

Dott, Robert H.

Earth Sciences

McGraw=Hill

Robert H. Dott Jr. and John W. Attig wrote Roadside Geology of Wisconsin to help residents and visitors alike "envision mastodons roaming in front of glaciers 12,000 years ago, feel storm waves pounding sea cliffs 500 million years ago, and hear volcanoes exploding 1,900 million years ago." With lively prose, detailed maps, black-and-white photographs, and shaded-relief images, the authors succeed in their goal: unraveling the 2,800 million years of geologic history recorded in Wisconsin's rocks. Introductory sections describe the geology of each region, and thirty-five road guides locate and interpret the rocks, sediments, and landforms visible from the state's highways, including the Great River Road in the Mississippi Valley. Roadside Geology of Wisconsin delves further into the geologic history of specific sites such as Apostle Islands National Lakeshore, the Wisconsin Dells, the geologically renowned Baraboo Hills, and more than twenty-five state parks. Features of and access points to the Ice Age National Scenic Trail are noted.

Roadside Geology of Wisconsin

Attig, John W.

Mountain Press

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Books by Dott, Robert H.