In the early part of the twentieth century, the researcher Marie Tharp worked on a detailed map of the bottom of the ocean. And then she made a discovery--a chasm down the middle of the Atlantic Ocean. Could this discovery help prove the age-old theory that the continents on Earth move? The second book in a series about scientific wonder. Dreaming, daring, thinking, and doing. For researchers ages 6 and up.

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.

This is a discount Black and white version. Some images may be unclear, please see BCCampus website for the digital version.This book was born out of a 2014 meeting of earth science educators representing most of the universities and colleges in British Columbia, and nurtured by a widely shared frustration that many students are not thriving in courses because textbooks have become too expensive for them to buy. But the real inspiration comes from a fascination for the spectacular geology of western Canada and the many decades that the author spent exploring this region along with colleagues, students, family, and friends. My goal has been to provide an accessible and comprehensive guide to the important topics of geology, richly illustrated with examples from western Canada. Although this text is intended to complement a typical first-year course in physical geology, its contents could be applied to numerous other related courses.

Science writer Sullivan (he was science editor of The New York Times for 23 years) updates his 1974 (McGraw-Hill) survey for the student or serious lay reader to incorporate developments that have reinforced or elaborated the theory presented in the original edition. Annotation copyrighted by Book News, Inc., Portland, OR.

The ground beneath your feet is solid, right? After all, how could we build houses and bridges on land if it was moving all the time? Actually, the ground beneath us really is moving all the time! In Fault Lines and Tectonic Plates: Discover What Happens When the Earth’s Crust Moves, readers ages 9 through 12 learn what exactly is going on under the dirt. The earth's crust is moving constantly, but usually it’s moving too slowly for us to notice it. In Fault Lines and Tectonic Plates, readers learn about Pangea, the giant landmass that scientists believe existed long ago, and the tectonic plates that Pangea broke into, which we know as continents. And what happens when these slowly drifting continents bump up against each other along fault lines? Earthquakes, volcanoes, and tidal waves! Readers learn the geological reasons behind earthquakes and also practical ways of behaving in those types of natural disasters. In addition to earthquakes, tectonic plates create the landscape of our world over time. Mountains and trenches are the results of the slow movement of the earth’s crust. With science-minded projects such as a homemade earthquake “shake table” and edible tectonic boundaries, the complex and fascinating topic of plate tectonics is made accessible for kids to grasp, helping to raise their awareness about this amazing planet we live on. Links to online primary sources and videos make concepts clear and encourage kids to maintain a healthy curiosity in the topic. Guided reading levels and Lexile measurements place this title with appropriate audiences.

Ancient Supercontinents and the Paleogeography of Earth offers a systematic examination of Precambrian cratons and supercontinents. Through detailed maps of drift histories and paleogeography of each continent, this book examines topics related to Earth's tectonic evolution prior to Pangea, including plate kinematics, orogenic development, and paleoenvironments. Additionally, this book discusses the methodologies used, principally paleomagnetism and tectonostratigraphy, and addresses geophysical topics of mantle dynamics and geodynamo evolution over billions of years. Structured clearly with consistent coverage for Precambrian cratons, this book combines state-of-the-art paleomagnetic and geochronologic data to reconstruct the paleogeography of the Earth in the context of major climatic events such as global glaciations. It is an ideal, up-to-date reference for geoscientists and geographers looking for answers to questions surrounding the tectonic evolution of Earth. - Provides robust paleogeographies of Precambrian cratons based on high-quality paleomagnetic and geochronologic data and critically tested by global geological datasets - Includes links to updated databases for the Precambrian such as PALEOMAGIA and the Global Paleomagnetic Database (GPMDB) - Presents full-color maps of the drift histories of each continent as well as their paleogeographies - Discusses key questions regarding continental drift, the supercontinent cycle, and the geomagnetic dipole hypothesis and analyzes palaeography in the context of Earth's holistic evolution

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Why did American geologists reject the notion of continental drift, first posed in 1915? And why did British scientists view the theory as a pleasing confirmation? This text, based on archival resources, provides answers to these questions.

Discusses plate tectonics, the theory that the surface of the earth is always moving, and the connection of this phenomenon to earthquakes and volcanoes.

A biography of the man who created the theory of continental drift.