A source of profound influence and controversy, this landmark 1915 work explains various phenomena of historical geology, geomorphy, paleontology, paleoclimatology, and similar areas in terms of continental drift. 64 illustrations. 1966 edition.
Syntheses of the geology of major areas of the Earth's crust are increasingly needed in order that the features of, and the problems associated with, the secular evolution of the continents can be understood by a wide audience. Southern Africa is fortunate in having a remarkable variety of geological environments developed without many breaks over 3. 8 Ga, and many of the rock groups are household names throughout the geological world. In one respect the geology of Southern Africa is particularly important: cratonization clearly began as early as 3. 0 Ga ago, in contrast to about 2. 5 Ga in most other continental areas such as North America. This book documents very well the remarkable change in tectonic conditions that took place between the Early and Mid-Precambrian; we have here evidence of the very earliest development of rigid lithospheric plates. This book is a tribute to the multitudes of scientists who have worked out the geology of Southern Africa over many years and decades. Whatever their discipline, each provided a step in the construction of this fascinating story of 3. 8 Ga of crustal development. In the book the reader will find a detailed review of the factual data, together with a balanced account of interpretative models without the indulgence of undue speculation. One of its attractions is its multidisciplinary approach which provides a stimulating challenge to the reader.
The twist of a knife. The birth of a legend. Step into the world of the #1 bestselling Throne of Glass series by Sarah J. Maas with this collection of prequel novellas. Celaena Sardothien is her kingdom's most feared assassin. Though she works for the powerful Assassin's Guild and its scheming master, Arobynn Hamel, she yields to no one and trusts only her fellow killer-for-hire, Sam. But when Arobynn dispatches her on missions that take her from remote islands to hostile deserts, Celaena finds herself acting independently of his wishes and questioning her own allegiance. If she hopes to escape Arobynn's clutches, Celaena will have to put her faith in her wits and her blade . . . knowing that if she fails, she'll lose not just a chance at freedom but her life. A prequel to the New York Times bestselling Throne of Glass, this collection of five novellas explores the history of this cunning assassin and her enthralling-and deadly-world. Included in this volume: The Assassin and the Pirate Lord The Assassin and the Healer The Assassin and the Desert The Assassin and the Underworld The Assassin and the Empire
Ideal for today's young investigative reader, each A True Book includes lively sidebars, a glossary and index, plus a comprehensive "To Find Out More" section listing books, organizations, and Internet sites. A staple of library collections since the 1950s, the new A True Book series is the definitive nonfiction series for elementary school readers.
This book fills a significant gap in the climatological literature, providing a comprehensive assessment of the climates of the southern hemisphere. It is the first book of its type to provide a consolidated view of the climates of southern Africa, Australia, South America and Antarctica, addressing past and future climates as well as those of the present. Present climates are considered in the first part of the book, to provide a background against which past and future climates can be investigated. Emphasis in the book is on the inter-relatedness of global, synoptic and smaller scale aspects of southern hemisphere continental climates. Discussion of topical, but fundamental, concerns including El NiƱo, global warming and climate variability is incorporated throughout the text. The study of the climatology of the southern hemisphere is fundamental to our understanding of climates and climatic issues across the globe. The book will therefore be of particular interest to scientists interested in climate with a focus beyond the southern hemisphere, as well as those with a specialised interest in all or part of the southern hemisphere. It is also a significant addition to the literature for climate researchers as well as for undergraduate students studying climatology in the atmospheric, environmental and earth sciences.
An incredible variety of climates and biomes span the territory of South America. As a result, the continent contains some of the greatest biodiversity on Earth. Rookie Read-About: Continents series gives the youngest reader (Ages 3-6) an introduction to the components that make each continent distinctive and exceptional. Readers will get to know each continents' geography, history, and wildlife.