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Books > Earth & environment > Earth sciences > Geology & the lithosphere > Geological surface processes (geomorphology)
Ice sheets as vast accumulations of frozen water on land are a direct expression of energy distribution on our planet. They form from the interplay of intensive accumulation of frozen water and insufficient melt during the summer. They define global sea-level and affect the geochemical composition of the ocean. This book presents current research in the study of the dynamics, formation and environmental concerns relating to ice sheets.
Aquifers are typically saturated regions of the subsurface that produce an economically feasible quantity of water to a well or spring (eg: sand and gravel or fractured bedrock often make good aquifer materials). Most land areas on Earth have some form of aquifer underlying them, sometimes at significant depths. In this book, the authors present current research in the study of the types, impacts and conservation of aquifers. Topics discussed include the effect of aquifer heterogeneity; hydrochemical features of groundwater from aquifer systems occurring in Sao Paulo, Brazil; aquifer system characterisation using integrated geophysical methods; pollution risk of groundwater in a semi-arid region by wastewater rejections; a numerical study of aquifer thermal energy storage systems influenced by regional groundwater flow and fluid flow and contaminant propagation in fractured rock aquifers.
Weathering is an important phenomenon of the geochemical cycle as it contributes to the relief formation. It corresponds to a general term applied to physical and chemical changes suffered by rocks as a consequence of their exposition to different conditions of humidity and temperature. In this book, the authors present topical research in the study of the types, processes and effects of weathering. Topics discussed include the use of weathering indices in rock research; geomorphic processes in the last glacial age; understanding chemical weathering in affecting the Earth's surface; weathering of dimensional granite stones used as cladding and the weathering process and desert pavement development.
In this book, the authors present current research in the study of the conservation, types and desertification of sand dunes. Topics discussed include the aridisation, dune dissipation and pedogenesis in the Quarternary of Eastern Pampean sand sea; desert sand dunes for sulfur concrete production; Allocosa brasiliensis as a model towards the conservation of coastal sand dunes in Uruguay and the causes, impacts and control of desertification.
An aquifer is an underground layer of water-bearing permeable rock or unconsolidated materials (gravel, sand, silt, or clay) from which groundwater can be usefully extracted using a water well. The authors of this book present important data on aquifers such as: hydrogeological studies of various dolomite aquifers in Slovenia; (GIS)groundwater modelling as an integrated tool for sustainable management of groundwater resources under changing environments; investigating different groundwater systems occurring in Brazil; an analysis of past catastrophic hydrogeological events (landslides and floods) and their affect on groundwater and aquifers and how to mitigate their damage.
To understand continental drift and plate tectonics, the shifting and collisions that make and unmake continents, requires a long view. The Earth, after all, is 4.6 billion years old. This book extends our vision to take in the greatest geological cycle of all--one so vast that our species will probably be extinct long before the current one ends in about 250 million years. And yet this cycle, the grandest pattern in Nature, may well be the fundamental reason our species--or any complex life at all--exists. This book explores the Supercontinent Cycle from scientists' earliest inkling of the phenomenon to the geological discoveries of today--and from the most recent fusing of all of Earth's landmasses, Pangaea, on which dinosaurs evolved, to the next. Chronicling a 500-million-year cycle, Ted Nield introduces readers to some of the most exciting science of our time. He describes how, long before plate tectonics were understood, geologists first guessed at these vanishing landmasses and came to appreciate the significance of the fusing and fragmenting of supercontinents. He also uses the story of the supercontinents to consider how scientific ideas develop, and how they sometimes escape the confines of science. Nield takes the example of the recent Indian Ocean tsunami to explain how the whole endeavor of science is itself a supercontinent, whose usefulness in saving human lives, and life on Earth, depends crucially on a freedom to explore the unknown.
The second edition of Beaches of the New South Wales Coast has been rewritten and expanded. It covers all of the state's 757 open coast beaches, as well as 120 beaches in five large bays, including Sydney Harbour, and the 15 beaches on Lord Howe Island - 892 beaches in all. It also covers 276 of NSW top surfing sites. This book has two aims. First, to provide the public with general information on the origin and nature of all NSW beaches, including the contribution of geology, oceanography, climate and biota to the beaches, and information on beach hazards and safety. Second, to provide a description of each beach, including its name(s), location, access, facilities, dimensions and the character of the beach and surf zone. The book comments on the suitability of the beach for bathing, surfing and fishing, with special emphasis on the natural hazards. Based on the physical hazards, all beaches are rated in terms of public safety and scaled from 1 (least hazardous) to 10 (most hazardous).
Coasts provides a necessary background in geomorphology for those studying coastal systems. It describes the landforms that occur on the coast, their responses to the processes that shape them, and the pattern of evolution that can be determined for different types of coasts over thousands of years. Numerous examples from around the world illustrate the variety of environments. Particular attention is paid to coastal morphodynamics; the co-adjustment of process and form, on rocky, reef, sandy, deltaic-estuarine and muddy coasts.
The last decade has been a period of rapid advances in glacier hydrology and hydrochemistry. These have resulted from the application of new technologies to the direct observation of englacial and subglacial drainage systems via boreholes, from theoretical advances and from increased interactions between fieldworkers and modellers. This collection of papers captures the spirit of these advances highlighting new methodologies, the change in character of hydrological models from lumped conceptual models to physically based, distributed models, and the changing role of field studies in glacier hydrological investigations. Major themes identified in the book are: approaches to defining the structure of drainage systems in cold and temperate glaciers; investigations of the linkages between surface and subsurface components of these systems, and of hydraulic interactions between different elements of subglacial systems; seasonal changes in drainage system properties at local and glacier wide scales; controls on meltwater quality; the integration of field and modelling studies; and problems of scaling up results from studies of valley glaciers to the ice sheet scale.
Geosequestration involves the deep geological storage of carbon dioxide from major industrial sources, providing a potential solution for reducing the rate of increase of atmospheric concentrations of carbon dioxide and mitigating climate change. This volume provides an overview of the major geophysical techniques and analysis methods for monitoring the movement and predictability of carbon dioxide plumes underground. Comprising chapters from eminent researchers, the book is illustrated with practical examples and case studies of active projects and government initiatives, and discusses their successes and remaining challenges. A key case study from Norway demonstrates how governments and other stake-holders could estimate storage capacity and design storage projects that meet the requirements of regulatory authorities. Presenting reasons for embracing geosequestration, technical best practice for carbon management, and outlooks for the future, this volume provides a key reference for academic researchers, industry practitioners and graduate students looking to gain insight into subsurface carbon management.
The world's coastlines represent a myriad of dynamic and constantly
changing environments. Heavily settled and intensely used areas,
they are of enormous importance to humans and understanding how
they are shaped and change is crucial to our future.
This book described the current status and possible future changes of the thermokarst (thaw) lakes of western Siberia as dominant forms of landscape and regulators of greenhouse gas exchange within the atmosphere. Thawing permafrost and resulting microbial decomposition of previously frozen organic carbon is one of the most significant terrestrial ecosystem positive feedbacks to a warming climate. Ongoing processes of the permafrost thawing in Western Siberia are likely to increase the surface of water bodies via forming so-called thermokarst lakes, mobilising the organic carbon (OC) from the soil pool to the rivers and, finally, to the ocean, and thus modifying the fluxes of methane (CH4) and CO2 to the atmosphere. Despite their tremendous importance for green house gazes regulation and hydrological regime control, very little is known about hydrochemistry of western Siberia thaw lakes. This book assesses the variation of major and trace elements (TE) and organic carbon (OC) concentration along the chronosequence of lake development and the latitude profile of variable permafrost abundance; characterises the colloidal status of TE and distinguishes between the relative proportion of organic and organo-mineral colloids; describes the particularity of microbiological composition of thermokarst lake waters and production/mineralisation processes in the water column; and presents the perspective of water chemical composition evolution under the climate change scenario. Each of these aforementioned objectives present a scientific challenge given mainly the paucity of existing information on these important but still very poorly studied ecosystems. Taken together, understanding of these issues and identification and quantification of controlling environmental parameters should produce conceptually new knowledge of biogeochemical processes operating within the Western Siberia Plain with the possibility of extrapolation of generated knowledge to much larger territories of arctic and subarctic permafrost-affected areas.
Since 1973 the author undertook 42 expeditions in Tibet, the Himalayas, Karakorum, Kuen Lun, Tien Shan, Sayan Mountains, the Altai and other parts of High and Central Asia which contributed to a detailed knowledge about extension and thickness of the High Asian inland-ice. Geomorphological and Quaternary-geological (sedimentological) results as well as climate measurement of a cumulative 6 years of field research in High Asia are presented. The data gained is for the Last Glacial period (Marine Isotope Stage (MIS) 32). Geometric boundary conditions resulting from low latitude caused a substantial albedo-induced impact on the energy budget of the earth during glacial times. The vast extension of the ice-sheets and the high elevation (6000m asl) contributed to this. A substantial albedo-induced cooling of the atmosphere is inferred. From these findings the author has deduced his ice age development theory. This book summarizes and details the results of 39 years of ice age research.
Tectonic geomorphology is the study of the interplay between tectonic and surface processes that shape the landscape in regions of active deformation and at time scales ranging from days to millions of years. Over the past decade, recent advances in the quantification of both rates and the physical basis of tectonic and surface processes have underpinned an explosion of new research in the field of tectonic geomorphology. Modern tectonic geomorphology is an exceptionally integrative field that utilizes techniques and data derived from studies of geomorphology, seismology, geochronology, structure, geodesy, stratigraphy, meteorology and Quaternary science. While integrating new insights and highlighting controversies from the ten years of research since the 1st edition, this 2nd edition of "Tectonic Geomorphology" reviews the fundamentals of the subject, including the nature of faulting and folding, the creation and use of geomorphic markers for tracing deformation, chronological techniques that are used to date events and quantify rates, geodetic techniques for defining recent deformation, and paleoseismologic approaches to calibrate past deformation. Overall, this book focuses on the current understanding of the dynamic interplay between surface processes and active tectonics. As it ranges from the timescales of individual earthquakes to the growth and decay of mountain belts, this book provides a timely synthesis of modern research for upper-level undergraduate and graduate earth science students and for practicing geologists. Additional resources for this book can be found at: www.wiley.com/go/burbank/geomorphology.
Antarctica is a magnificent display of interaction between air and the various phases of water in a pristine environment. This interaction has led to the formation of many unique features over the Antarctic continent. Antarctica is now emerging as an important key in the understanding of global and environmental concerns. Its unique features have provided scientists with special opportunities to investigate the origin of the continents, pollution at the global level, ozone hole healing and changes in the global climate. However, lack of scientific data remains a major problem for researchers in many areas of Antarctic science. This book fills the gaps in the process of understanding Antarctic science.
H2O is a substance that only on the Earth exists in three phases: solid, liquid and gaseous. On other celestial bodies known to us it does not occur in a tri-phase state. An analysis of the definitions of water, ice, hydrosphere and the kryosphere shows that in this context they lack cohesion. Alongside ice, with its varied material forms in nature, another constituent of the kryosphere is temperature. Those two elements create the kryosphere. Their characterisation in consequence is the characterisation of ice and permafrost presented in the aforementioned context. This book discusses the kryosphere in detail, including its relationship with the hydrosphere.
Written for anyone interested in coastal geomorphology, this is the complete guide to the processes at work on our coastlines and the resulting features seen in coastal systems across the world. Accessible to students from a range of disciplines, the quantitative approach of this book helps to build a solid understanding of wave and current processes that shape coastlines. From sandy beaches to coral reefs, the major coastal features are related to contemporary processes and to sea-level changes over the past 25,000 years. Key equations describing these processes and standard methods and instrumentation used to collect measurements are all presented in this wide-ranging overview. Designed to support a one- or two-semester course and grounded in current research, this second edition has been substantially updated and rewritten - featuring cutting-edge new topics, insights from new models and technologies, additional global examples and an enhanced package of online teaching materials.
Computational models are invaluable in understanding the complex effects of physical processes and environmental factors which interact to influence landform evolution of geologic time scales. This book provides a holistic guide to the construction of numerical models to explain the co-evolution of landforms, soil, vegetation and tectonics, and describes how the geomorphology observable today has been formed. It explains the science of the physical processes and the mechanics of how to solve them, providing a useful resource for graduates studying geomorphology and sedimentary and erosion processes. It also emphasises the methods for assessing the relative importance of different factors at field sites, enabling researchers to select the appropriate processes to model. Integrating a discussion of the fundamental processes with mathematical formulations, it guides the reader in understanding which processes are important and why; and creates a framework through which to study the interaction of soils, vegetation and landforms over time.
This book introduces the reader to the unique geology of Greece. This country is a natural geology laboratory that can help us understand the present-day active geodynamic processes in the Hellenic orogenic arc, including earthquakes, volcanoes, coastline changes and other processes of uplift and subsidence, as well as the intense erosion, transport and deposition of sediments. Additionally, Greece offers a remarkable geological museum, reflecting the complex history of the area over the last 300 million years. By studying the rocks of Greece, one can discover old oceanic basins, e.g. in the Northern Pindos and Othrys mountains, crystalline rocks of Palaeozoic age, old granitic and volcanic rocks, as well as other sedimentary rocks including fossils from the shallow neritic facies to pelagic and abyssal facies. The younger sediments demonstrate the continuously changing palaeogeography of Greece, with areas of lakes, high plateaus and gulfs that are transformed into new forms of islands, peninsulas or high mountains, etc. All the above subjects are included in the book, which describes the tectonic structure of the geological strata, together with the evolutionary stages of the palaeogeography and geodynamics within the broader Mediterranean context. A special characteristic of the book is the development of the orogenic model of the Hellenides with the application of the tectono-stratigraphic terrane concept in the Tethyan system.
"Retreat of mountain glaciers ranks alongside sea level rise and
extermination of species as one of the greatest threats posed by
continued global warming. The authoritative picture painted in
"Darkening Peaks" should help bring humanity to its senses and to
spur the actions needed."--James E. Hansen, NASA Goddard Institute
for Space Studies
Based on four decades of research by Professor Andrew Goudie, this volume provides a state-of-the-art synthesis of our understanding of desert geomorphology. It presents a truly international perspective, with examples from all over the world. Extensively referenced and illustrated, it covers such topics as the importance of past climatic changes, the variability of different desert environments, rock breakdown, wind erosion and dust storm generation, sand dunes, fluvial and slope forms and processes, the role of the applied geomorphologist in desert development and conservation, and the Earth as an analogue for other planetary bodies. This book is destined to become the classic volume on arid and semi-arid geomorphology for advanced students and researchers in physical geography, geomorphology, Earth science, sedimentology, environmental science, and archaeology.
Take this book to the beach; it will open up a whole new world. Illustrated throughout with color photographs, maps, and graphics, it explores one of the planet's most dynamic environments - from tourist beaches to Arctic beaches strewn with ice chunks to steaming hot tropical shores. "The World's Beaches" tells how beaches work, explains why they vary so much, and shows how dramatic changes can occur on them in a matter of hours. It discusses tides, waves, and wind; the patterns of dunes, washover fans, and wrack lines; and the shape of berms, bars, shell lags, cusps, ripples, and blisters. What is the world's longest beach? Why do some beaches sing when you walk on them? Why do some have dark rings on their surface and tiny holes scattered far and wide? This fascinating, comprehensive guide also considers the future of beaches, and explains how extensively people have affected them - from coastal engineering to pollution, oil spills, and rising sea levels.
Ice Sheets and Late Quaternary Environmental Change provides a detailed account of the temporal and spatial distribution of ice sheets during the last ice age, and how these ice masses interacted with the environment. This is the first book in 20 years to detail the sizes of ice sheets during the last glaciation and the first to discuss their role in past climate change.
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