The present study deals mainly with the stratigraphy, structural geology and environment of deposition of the strata of the Arctic Platform, comprising mainly a structurally concordant succession of lower Palaeozoic strata in the western three quarters of the island.
Fourteen chapters discuss regional stratigraphy by time intervals from Precambrian to Quaternary, while other chapters describe the geography, geomorphology, tectonics, geophysical characteristics, and resources of the region. A summary chapter includes geologic maps, structural cross-sections, a geotectonic correlation chart, a gravity map, and a location map for exploration wells in the Arctic Islands and northern Greenland. A wealth of additional information is contained on the nine accompanying plates.
"To recognize the 25th anniversary of the Circum-Arctic Structural Events program, an effort organized by the Bundesanstalt fèur Geowissenschaften und Rohstoffe, this volume presents results from 18 major field expeditions involving 100+ geoscientists from a spectrum of disciplines. The volume focuses on the Proterozoic to Cenozoic tectonic evolution of the circum-Arctic region with correlations to adjacent orogens"--
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.
Impact cratering is arguably the most ubiquitous geological process in the Solar System. It has played an important role in Earth’s history, shaping the geological landscape, affecting the evolution of life, and generating economic resources. However, it was only in the latter half of the 20th century that the importance of impact cratering as a geological process was recognized and only during the past couple of decades that the study of meteorite impact structures has moved into the mainstream. This book seeks to fill a critical gap in the literature by providing an overview text covering broad aspects of the impact cratering process and aimed at graduate students, professionals and researchers alike. It introduces readers to the threat and nature of impactors, the impact cratering process, the products, and the effects – both destructive and beneficial. A series of chapters on the various techniques used to study impact craters provide a foundation for anyone studying impact craters for the first time.
Developments in Geotectonics, 12: Sedimentary Basins of Continental Margins and Cratons focuses on the formation, movements, characteristics, and evolution of sedimentary basins of continental margins and cratons. The selection first offers information on mechanisms of basin subsidence and rheology of the lithosphere. Discussions focus on hypotheses of basin subsidence mechanism, testing the hypotheses, elastic properties and flexural rigidity of the lithosphere, and rheology of young continental margins. The text then elaborates on flexure of the lithosphere and continental margin basins and thermal and mechanical evolution of the Michigan basin. The book ponders on the formation of sedimentary basins of graben type by extension of the continental crust and major synchronous events in continental shelves. Topics include inception of shelf development, mid-cretaceous change, taphrogenic subsidence, and energy budget of wedge subsidence mechanism. The manuscript also examines development of graben associated with the initial ruptures of the Atlantic Ocean and observations on the processes of sedimentary basin formation at the margins of Southern Africa. The selection is a dependable reference for readers interested in the study of continental margins.