The mountains and fjords of Greenland preserve a record of nearly four billion years of Earth history -- a story of mountain building, volcanic eruptions, primitive life and ice ages. During this vast period of time, through processes of continental drift, Greenland has journeyed from the southern hemisphere through the tropics to its present polar position. This volume presents an account of the geological evolution of Greenland, together with its mineral wealth and hydrocarbon potential. It is written in a form that is aimed at the general reader with an interest in the dramatic history of our planet.

John Burroughs Medal for Distinguished Natural History Book New Mexico-Arizona Book Award Winner Saroyan Prize Shortlist Kirkus Reviews "Best Book of the Year" selection "A richly literary account. . . . Anchored by deep reflection and scientific knowledge, A Wilder Time is a portrait of an ancient, nearly untrammeled world that holds the secrets of our planet's deepest past, even as it accelerates into our rapidly changing future. The book bears the literary, scientific, philosophic, and poetic qualities of a nature-writing classic, the rarest mixture of beauty and scholarship, told with the deftest touch." —John Burroughs Medal judges’ citation Greenland, one of the last truly wild places, contains a treasure trove of information on Earth's early history embedded in its pristine landscape. Over numerous seasons, William E. Glassley and two fellow geologists traveled there to collect samples and observe rock formations for evidence to prove a contested theory that plate tectonics, the movement of Earth's crust over its molten core, is a much more ancient process than some believed. As their research drove the scientists ever farther into regions barely explored by humans for millennia—if ever—Glassley encountered wondrous creatures and natural phenomena that gave him unexpected insight into the origins of myth, the virtues and boundaries of science, and the importance of seeking the wilderness within. An invitation to experience a breathtaking place and the fascinating science behind its creation, A Wilder Time is nature writing at its best. William E. Glassley is a geologist at the University of California, Davis, and an emeritus researcher at Aarhus University, Denmark, focusing on the evolution of continents and the processes that energize them. He is the author of over seventy research articles and a textbook on geothermal energy. He lives in Santa Fe, New Mexico.

Narsarsuaq is located at the head of the long Tunulliarfik Fjord and is the entrance to a mountainous region dissected by valleys and fjords which give access to a variety of landscapes. The geology of the region is of particular interest. This book presents an introduction to the geology of the region.

Accompanying CD-ROM contains fold. col. map, entitled, in both formats, "Caledonian orogen : East Greenland 70°N-82°N : Geological map 1:1 000 000.

A group of geoscientists from a number of NATO countries met under NATO sponsorship in Copenhagen on February 27 and 28, 1978, and formulated a proposal entitled "EVOLUTION OF THE GREENLAND ICELAND-FAEROE-SCOTLAND RIDGE, A KEY AREA IN MARINE GEOSCIENCE". This part of the North Atlantic Ocean is of particular interest because of its anomalously shallow bathymetry which has profoundly influenced many aspects of the evolution of the North Atlantic. The proposed investigations therefore aim to study the deep crustal structure including relationship of continental and oceanic crust, history of subsidence of the ridge including its past role as a land bridge, age of the oceanic basement along it and its history of formation, and the influence of the ridge on Tertiary and Quaternary depositional palaeoenvironments. In furtherance of this proposal, it is intended to carry out a series of seismic and drilling operations on the Ridge during the coming years. These major marine investigations will be mainly funded from national sources. An important preliminary stage to the project is the collec tion and synthesis of available data. NATO has already approved a small budget for this purpose which has enabled a geoscientist to work partly at the Department of Geological Sciences of Durham University, UK, and partly at Lamont-Doherty Geological Observatory of Columbia University, Palisades, USA, for about six months to compile the data. The most important map showing magnetic anomalies and lineations in the area, is included in a pocket at the back of this volume.

Summaries of the major features of the geology of North America and the adjacent oceanic regions are presented in 20 chapters. Topics covered include concise reviews of current thinking about Precambrian basement, Phanerozoic orogens, cratonic basins, passive-margin geology of the Atlantic and Gulf Coast regions, marine and terrestrial geology of the Caribbean region and economic geology.

This book provides a complete Phanerozoic story of palaeogeography, using new and detailed full-colour maps, to link surface and deep-Earth processes.