The archipelagos of Orkney and Shetland are the products of some of the most dramatic events which have occurred in the Earth's history. The Shetlands are the eroded roots of a vast mountain range that once soared to Himalayan heights and extended from Scandinavia to the Appalachians. Around 65 million years ago, this mighty chain was split asunder by the shifting of the Earth's tectonic plates, and the North Atlantic Ocean was formed. In earlier times, the area was occupied by a huge freshwater lake - Lake Orcadie - which existed for almost 10 million years and was home to a wide range of primitive species of fish. Later, during the last Ice Age, the area was completely submerged beneath ice sheets which left an indelible mark on the landscapes of both island groups. This book tells the incredible geological story of the most northerly outposts of the British Isles.

As in the original edition of 1988, this book covers the principles and practice of argon isotopic dating, a technique that has been used to determine the numerical age of the Earth. The greater precision of the 40Ar/39Ar method allows scientists to test smaller geological samples than its precursor, the K-Ar method, which required a comparison of different elements. The new edition will incorporate new developments made in 40Ar/39Ar application over the last decade, made possible by advances in lasers and mass spectrometry.

This third edition of Reconstructing Quaternary Environments has been completely revised and updated to provide a new account of the history and scale of environmental changes during the Quaternary. The evidence is extremely diverse ranging from landforms and sediments to fossil assemblages and geochemical data, and includes new data from terrestrial, marine and ice-core records. Dating methods are described and evaluated, while the principles and practices of Quaternary stratigraphy are also discussed. The volume concludes with a new chapter which considers some of the key questions about the nature, causes and consequences of global climatic and environmental change over a range of temporal scales. This synthesis builds on the methods and approaches described earlier in the book to show how a number of exciting ideas that have emerged over the last two decades are providing new insights into the operation of the global earth-ocean-atmosphere system, and are now central to many areas of contemporary Quaternary research. This comprehensive and dynamic textbook is richly illustrated throughout with full-colour figures and photographs. The book will be of interest to undergraduates, postgraduates and professionals in Earth Science, Environmental Science, Physical Geography, Geology, Botany, Zoology, Ecology, Archaeology and Anthropology

The resolution of the sixty-year debate over continental drift, culminating in the triumph of plate tectonics, changed the very fabric of Earth science. This four-volume treatise on the continental drift controversy is the first complete history of the origin, debate and gradual acceptance of this revolutionary theory. Based on extensive interviews, archival papers and original works, Frankel weaves together the lives and work of the scientists involved, producing an accessible narrative for scientists and non-scientists alike. This fourth volume explains the discoveries in the mid 1960s which led to the rapid acceptance of seafloor spreading theory and how the birth of plate tectonics followed soon after with the geometrification of geology. Although plate tectonics did not explain the cause or dynamic mechanism of drifting continents, it provided a convincing kinematic explanation that continues to inspire geodynamic research to the present day.

The resolution of the sixty-year debate over continental drift, culminating in the triumph of plate tectonics, changed the very fabric of Earth science. This four-volume treatise on the continental drift controversy is the first complete history of the origin, debate and gradual acceptance of this revolutionary theory. Based on extensive interviews, archival papers and original works, Frankel weaves together the lives and work of the scientists involved, producing an accessible narrative for scientists and non-scientists alike. This third volume describes the expansion of the land-based paleomagnetic case for drifting continents and recounts the golden age of marine geology and geophysics. Fuelled by the Cold War, US and British workers led the way in making discoveries and forming new hypotheses, especially about the origin of oceanic ridges. When first proposed, seafloor spreading was just one of several competing hypotheses about the evolution of ocean basins.

The resolution of the sixty-year debate over continental drift, culminating in the triumph of plate tectonics, changed the very fabric of Earth science. This four-volume treatise on the continental drift controversy is the first complete history of the origin, debate and gradual acceptance of this revolutionary theory. Based on extensive interviews, archival papers and original works, Frankel weaves together the lives and work of the scientists involved, producing an accessible narrative for scientists and non-scientists alike. This second volume provides the first extensive account of the growing paleomagnetic case for continental drift in the 1950s and the development of apparent polar wander paths that showed how the continents had changed their positions relative to one another, more or less as Wegener had proposed. Paleomagnetism offered the first physical measure that continental drift had occurred and helped determine the changing latitudes of the continents through geologic time.

A beautiful little guide to one of life's simple pleasures - pebble spotting. Where science meets mindfulness. Learn to appreciate their beauty, discover the amazing journey that brought them to you, search for the rare ones. Leave no stone unturned. Turn a day on the beach or a seaside holiday stroll into a treasure hunt with this lovely little guide to identifying pebbles. Pebble spotting is one of life's simple joys. There's nothing quite like searching the rocks on a beach until that special one catches your eye - a perfect shape, a gorgeous colour, an intriguing pattern. But what is it? Use this beautifully illustrated little guide to find out, and to discover your pebble's fascinating life story and secrets. It could be even more special than you thought... Geologist and passionate pebble spotter Clive Mitchell has created a charming and wonderfully browsable book that is a perfect companion to a day out or holiday, or an idle moment at home. This book contains entries on 40 different types of pebble, complete with detailed facts about the composite rock's structure and where to find them, with examples including: Flint Feldspar veins Spotted slates Serpentinite Granite ovoids The rare rhomb porphyry - the holy grail of pebble hunting The book includes a space to ruminate on your own findings, taking note of the treasures that you pick up along the way and discovering the secrets of the stones beneath your feet. The Pebble Spotter's Guide is the perfect introduction to everything you didn't know there was to know about the mindful pleasure of pebble spotting and the wonder of pebbles. Simply sit on a beach or next to a stream for 10 minutes and find amazing treasures at your feet; there is much to discover.

Take a learning journey through billions of years of Earth history

This indispensable guide to the fundamentals of geology is the ideal way to introduce yourself to all the basics, from rocks, minerals, and fossil fuels to earthquakes, volcanoes, and plate tectonics. Using quick quizzes and self-tests to reinforce key concepts, Geology carefully walks you through billions of years of Earth history. Illustrated with more than one hundred specially commissioned illustrations and fifty photographs that help clarify difficult concepts, this easy-to-follow book is an interactive resource for anyone interested in learning more about our planet.

Whether you are new to geology or want to refresh and update your knowledge, the proven self-teaching guide approach will allow you to work at your own pace, check your progress, and learn more about this fascinating field of study.

Earth's climate has undergone dramatic changes over the geologic timescale. At one extreme, Earth has been glaciated from the poles to the equator for periods that may have lasted millions of years. At another, temperatures were once so warm that the Canadian Arctic was heavily forested and large dinosaurs lived on Antarctica. Paleoclimatology is the study of such changes and their causes. Studying Earth's long-term climate history gives scientists vital clues about anthropogenic global warming and how climate is affected by human endeavor.

In this book, Michael Bender, an internationally recognized authority on paleoclimate, provides a concise, comprehensive, and sophisticated introduction to the subject. After briefly describing the major periods in Earth history to provide geologic context, he discusses controls on climate and how the record of past climate is determined. The heart of the book then proceeds chronologically, introducing the history of climate changes over millions of years--its patterns and major transitions, and why average global temperature has varied so much. The book ends with a discussion of the Holocene (the past 10,000 years) and by putting manmade climate change in the context of paleoclimate.

The most up-to-date overview on the subject, "Paleoclimate" provides an ideal introduction to undergraduates, nonspecialist scientists, and general readers with a scientific background.

This book describes the geological setting of Iran throughout geological history, referring to paleogeography and general geodynamics. Also, all structural units, faults, tectonic phases and orogeny occurred in the geology of Iran have been evaluated. Magmatic and metamorphic rocks along with ophiolitic complexes have extensive outcrops in Iran, and these rocks with Precambrian age constitute its basement. Study and identification of such rocks not only throws light on the geodynamic issues of Iran but also helps in recognition of the mode of formation and evolution of the sedimentary basins located within various structural divisions of the country. Moreover, the majority of metallic and non-metallic mineral deposits are associated either directly or indirectly with magmatic, and at time metamorphic, rocks. In the Magmatism and Metamorphism parts, it is tried to thoroughly consider the various aspects of the igneous rocks, whether intrusive, extrusive or young volcanoes, from the point of view of petrography, geochemistry and geodynamics. In addition, the major intrusive bodies of Iran have been presented along with their petrologic and chronologic specifications in tables, mentioning the bibliographic resources.

The book provides the first comprehensive and thematic treatment of micropalaeontology and its applications in petroleum exploration. The first part deals with pure micropalaeontology, and the second part with the principles and practices of applied micropalaeontology and sequence stratigraphy. Case histories of applications in a range of geographic, geologic, and stratigraphic settings are given.

Serpentinites, a major source of both ornamental facing stone in architecture and asbestos, are considered enigmatic rocks due to their apparent complexity. Yet studying serpentinites and the processes that form them is essential to understanding the formations in the Earth's tectonic plates. This book presents the geological history of serpentinites, from detailed descriptions and photographs in outcrop and under the microscope, to models describing the distribution of serpentine minerals and the formation of chrysotile-asbestos deposits. Students pursuing research topics in serpentinites or Earth scientists investigating tectonic processes in mid-ocean ridges will find this a useful reference book.

DUST is unmistakably a major book in the making. This is a book with an extraordinary global story to tell, but - and - also with an ethical argument to advance. - Robert Macfarlane __________ Four-and-a-half billion years ago, Planet Earth was formed from a vast spinning nebula of cosmic dust, the detritus left over from the birth of the sun. Within the next hundred years, human life on swathes of the earth's surface will also end, in a haze of heat, drought and, again, dust. Dust is the legacy of twentieth-century progress and a profound threat to life in the twenty-first. And yet it's something we hardly ever consider - so small and so mundane as to be beyond the threshold of thought. All of history is recorded in the dust we create: the pollution we make, the fires we start, the chemicals we use, the volcanos that erupt. Now, for the first time DUST will examine this substance and reveal it's importance and the fascinating stories it has.

This book outlines the development and perspectives of the Anthropocene concept by Paul J. Crutzen and his colleagues from its inception to its implications for the sciences, humanities, society and politics. The main text consists primarily of articles from peer-reviewed scientific journals and other scholarly sources. It comprises selected articles on the Anthropocene published by Paul J. Crutzen and a selection of related articles, mostly but not exclusively by colleagues with whom he collaborated closely. * In the year 2000 Nobel Laureate Paul J. Crutzen proposed the Anthropocene concept as a new epoch in Earth's history * Comprehensive collection of articles on the Anthropocene by Paul J. Crutzen and his colleagues* Unique primary research literature and Crutzen's comprehensive bibliography* Paul Crutzen's scientific investigations into human influences on atmospheric chemistry and physics, the climate and the Earth system, leading to the conception of the Anthropocene* Reflections on the Anthropocene and its implications* Bibliometric review of the spread of the use of the Anthropocene concept in the Natural and Social Sciences, Humanities and Law

This book investigates the role of the National Petroleum Council (CNP) and especially of Petrobras in the construction and shaping of courses in Geosciences, as part of the historical process of the search for and exploration of oil, which began in Brazil in 1864 and ended in 1968 with the discovery of the first offshore well. The book explores the history of the discovery of oil in Brazil together with the historical development of oil research and geosciences in Brazil. It also elucidates significant events and developments which occurred between 1864 and 1968 such as the foundation of the Ouro Preto Mining School, the foundation of the CNP and Petrobras and other scientific societies and universities and their contributions to the formation and constitution of geosciences in Brazil. This book also discusses the massive investments by CNP and Petrobras in technical and scientific research for oil exploration in the Brazilian territory.This unique book appeals to scientists, students and professionals in geosciences, history and related fields.

This book gives a comprehensive view of the strengths and limits of the interdisciplinary methods that work together to form the geohistorical approach to geographical and geological sciences. The geohistorical approach can be synthetically defined as a multi- and interdisciplinary approach that uses techniques and perspectives, mainly from geography, history, and natural sciences, to examine topics that inform the space-time knowledge of environment, territory, and landscape. The boundary between the application of physical and human science methods is large and hazy. This volume exists at this boundary and offers an approach that utilizes both historical data (from both physical and human records) and GIScience (e.g. GIS, cartography, GPS, remote sensing) to investigate the evolution of the environment, territory and landscape through both space and time. The first objective of this volume is to define the term geohistorical approach. An entire chapter focuses on a review of the main disciplines that connect geography and history, a review of the terms environment, territory, and landscape as objects of study of this approach, and the definition and importance of the geohistorical approach. The second goal is to describe the methods used in the geohistorical approach. Eight chapters present the key methods also using examples of applications from the international context, offering an awareness of the potentials, limitations and accuracy of each method, with particular focus on the integration of methods. The third goal is to provide case studies to demonstrate the use and integration of geohistorical methods from both original material and published research. A final chapter is dedicated to an interdisciplinary case study from the Venetian Plain (Italy), providing an example of the integration of almost all methods described in the book.

Arguably the best work to date in the history of geology.--David R. Oldroyd, Science After a superficial first glance, most readers of good will and broad knowledge might dismiss [this book] as being too much about too little. They would be making one of the biggest mistakes in their intellectual lives. . . . [It] could become one of our century's key documents in understanding science and its history.--Stephen Jay Gould, New York Review of Books Surely one of the most important studies in the history of science of recent years, and arguably the best work to date in the history of geology.--David R. Oldroyd, Science

Millions of years ago, the North American continent was dragged over the world's largest continental hotspot (a hug column of molten rock rising from the earth's interior), tracing a 5 mile wide, 500 mile long path northeastward across Idaho and generating huge volcanic eruptions and earthquakes. The hotspot lifted the Yellowstone Plateau to more than 7000 feet and pushed the Northern Rockies to new heights. This book is the story of those events and how the landscape of the two great national parks was shaped by earthquakes, volcanoes, geysers and, in the uplifted Rocky Mountains, mountain glaciers. The story is also a 'window' into the earth's interior, revealing the dynamic processes within.

Petroglyphic rock art in three valleys of Mongolia's Altai Mountains reveals the anatomy of deep time at the boundary between Central and North Asia. Inscribed over a period of twelve millennia, its subject matter, styles, and manner of execution reflect the constraints of changing geology, climate, and vegetation. These valleys were created and shaped by ancient glaciers. Analysis of their physical environment, projected from the deep past to the present, begins to explain the rhythm of cultural manifestations: where rock art appears, when it disappears, and why. The material and this remote arena offer an ideal laboratory to study the intersection of prehistoric culture and paleoenvironment.

The Small Isles comprise the Inner Hebridean islands of Rum, Eigg, Canna and Muck. The landscapes, rocks and fossils of these beautiful, remote islands tells of a drama involving erupting volcanoes, an ancient ecosystem that included dinosaurs and an ancient desert landscape. The geological history stretches back 3 billion years to the earliest events recorded on Earth. All four islands owe their origin to a group of three adjacent volcanoes that were active around 60 million years ago. Rum is the eroded remains of the magma chamber of one of these volcanoes. Eigg and Muck are part of the lava field that extends north from the Mull volcano and Canna lies towards the southern extent of the lavas that flowed from the Skye volcano. The final event that left a mark on these islands was the Ice Age that started around 2.4 million years ago. Its effect on the landscape was profound. The thick cover of erosive ice shaped the contours of the land into the hills and glens that we are familiar with today.

Plate tectonics is a revolutionary theory on a par with modern genetics. Yet, apart from the frequent use of cliches such as 'tectonic shift' by economists, journalists, and politicians, the science itself is rarely mentioned and poorly understood. This book explains modern plate tectonics in a non-technical manner, showing not only how it accounts for phenomena such as great earthquakes, tsunamis, and volcanic eruptions, but also how it controls conditions at the Earth's surface, including global geography and climate. The book presents the advances that have been made since the establishment of plate tectonics in the 1960s, highlighting, on the 50th anniversary of the theory, the contributions of a small number of scientists who have never been widely recognized for their discoveries. Beginning with the publication of a short article in Nature by Vine and Matthews, the book traces the development of plate tectonics through two generations of the theory. First generation plate tectonics covers the exciting scientific revolution of the 1960s and 1970s, its heroes and its villains. The second generation includes the rapid expansions in sonar, satellite, and seismic technologies during the 1980s and 1990s that provided a truly global view of the plates and their motions, and an appreciation of the role of the plates within the Earth 'system'. The final chapter bring us to the cutting edge of the science, and the latest results from studies using technologies such as seismic tomography and high-pressure mineral physics to probe the deep interior. Ultimately, the book leads to the startling conclusion that, without plate tectonics, the Earth would be as lifeless as Venus.

What happens when a distant colonial power tries to tame an unfamiliar terrain in the world's largest tidal delta? This history of dramatic ecological changes in the Bengal Delta from 1760 to 1920 involves land, water and humans, tracing the stories and struggles that link them together. Pushing beyond narratives of environmental decline, Bhattacharyya argues that 'property-thinking', a governing tool critical in making land and water discrete categories of bureaucratic and legal management, was at the heart of colonial urbanization and the technologies behind the draining of Calcutta. The story of ecological change is narrated alongside emergent practices of land speculation and transformation in colonial law. Bhattacharyya demonstrates how this history continues to shape our built environments with devastating consequences, as shown in the Bay of Bengal's receding coastline.

The Nile Basin contains a record of human activities spanning the last million years. However, the interactions between prehistoric humans and environmental changes in this area are complex and often poorly understood. This comprehensive book explains in clear, non-technical terms how prehistoric environments can be reconstructed, with examples drawn from every part of the Nile Basin. Adopting a source-to-sink approach, the book integrates events in the Nile headwaters with the record from marine sediment cores in the Nile Delta and offshore. It provides a detailed record of past environmental changes throughout the Nile Basin and concludes with a review of the causes and consequences of plant and animal domestication in this region and of the various prehistoric migrations out of Africa into Eurasia and beyond. A comprehensive overview, this book is ideal for researchers in geomorphology, climatology and archaeology.

'Full of wonder and forensic intelligence' Isabella Tree, author of Wilding A moving account of Madagascar told by a researcher who has spent over fifty years investigating the mysteries of this remarkable island. Madagascar is a place of change. A biodiversity hotspot and the fourth largest island on the planet, it has been home to a spectacular parade of animals, from giant flightless birds and giant tortoises on the ground, to agile lemurs leaping through the treetops. Some species live on; many have vanished in the distant or recent past. Over vast stretches of time, Madagascar's forests have expanded and contracted in response to shifting climates, and the hand of people is clear in changes during the last thousand years or so. Today, Madagascar is a microcosm of global trends. What happens there in the decades ahead can, perhaps, suggest ways to help turn the tide on the environmental crisis now sweeping the world. The Sloth Lemur's Song is a far-reaching account of Madagascar's past and present, led by an expert guide who has immersed herself in research and conservation activities with village communities on the island for nearly fifty years. Alison Richard accompanies the reader on a journey through space and time-from Madagascar's ancient origins as a landlocked region of Gondwana and its emergence as an island to the modern-day developments that make the survival of its array of plants and animals increasingly uncertain. Weaving together scientific evidence with Richard's own experiences and exploring the power of stories to shape our understanding of events, this book captures the magic as well as the tensions that swirl around this island nation.

This book presents the study of limnogeomorphology, in which past proxy data such as lacustrine sediments with information on landform development can be linked to modern observed data acquired by instruments, including hydro-geomorphological and sedimentary data. Traditionally, in the field of earth sciences, it has been thought that geophysical studies dealing mainly with the present process were not smoothly linked to geological studies that originated from historical studies. Although such earth-surface process studies are closely related to those on historical landform development in the field of geomorphology, they have been studied separately. Those two geomorphology studies correspond to process geomorphology (dynamic geomorphology) and historical geomorphology. There have been some attempts to combine them; however, they lacked past quantitative records available for further analyses. In the study of limnogeomorphology, proxy data can be converted to quantitative information to be utilized in future environmental discussions. This book also covers information not only on large lake-catchment systems, but on small systems. Those include long-term and short-term and large-scale and small-scale environmental changes in east Eurasia such as Lake Baikal, Lake Khuvsgul, Lake Biwa, and small lakes in Japan, Mongolia, China, and Korea.