Geografia

More than 200 million years ago, a cataclysmic event known as the Permian extinction destroyed more than 90% of all species and nearly 97% of all living things. Its origins have long been a puzzle for paleontologists, and during the 1990s and the early part of this century a great battle was fought between those who thought that death had come from above and those who thought something more complicated was at work.

Paleontologist Peter D. Ward, fresh from helping prove that an asteroid had killed the dinosaurs, turned to the Permian problem, and he has come to a stunning conclusion....

" An] absorbing survey of oceanography . . . this] elegant study is an excellent resource."--Publishers Weekly

A fascinating examination of the earth's oceans

This exhaustive overview of oceanography captures the excitement of discovery in the making. The Oceans opens up the world of ocean science to the general reader and raises significant questions about the future of the ancient, nurturing ocean itself.

The oceans cover more than 70 percent of the globe, yet less than 5 percent of that expanse has been explored. But, as Drs. Prager and Earle...

Computers and Geotechnics
Geotextiles and Geomembranes
International Journal of Rock Mechanics and Mining Sciences
Journal of Terramechanics
Soil Dynamics and Earthquake Engineering
Tunnelling and Underground Space Technology

Following the breakthrough in the last decade in identifying the key parameters for time and depth imaging in anisotropic media and developing practical methodologies for estimating them from seismic data, Seismic Signatures and Analysis of Reflection Data in Anisotropic Media primarily focuses on the far reaching exploration benefits of anisotropic processing.

This volume provides the first comprehensive description of reflection seismic signatures and processing methods in anisotropic media. It identifies the key parameters for time and depth imaging in transversely...

Volume 9 focuses on natural and anthropogenic environmental contaminants and their implications for human health and the environment. Environmental impacts on soils, groundwater, freshwater, the oceans and atmosphere are examined in the context of both inorganic geochemistry (metals, metalloids, radioactive compounds, mineral dusts, dissolved salts, acidification) and organic geochemistry (halogenated and non-halogenated hydrocarbons, volatile organic compounds, fuel oxygenates, pesticides, nutrients). Issues of risk, toxicity and exposure assessment; contaminant fate and transport;...

Volume 5 has several objectives. The first is to present an overview of the composition of surface and ground waters on the continents and the mechanisms that control the compositions. The second is to present summaries of the tools and methodologies used in modern studies of the geochemistry of surface and ground waters. The third is to present information on the role of weathering and soil formation in geochemical cycles: weathering affects the chemistry of the atmosphere through uptake of carbon dioxide and oxygen, and paleosols (preserved soils in the rock record) provide information...

Information-Based Inversion and Processing with Applications examines different classical and modern aspects of geophysical data processing and inversion with emphasis on the processing of seismic records in applied seismology.

Chapter 1 introduces basic concepts including: probability theory (expectation operator and ensemble statistics), elementary principles of parameter estimation, Fourier and z-transform essentials, and issues of orthogonality. In Chapter 2, the linear treatment of time series is provided. Particular attention is paid to Wold decomposition theorem and...

Volume 3 examines the chemical composition of the Earth's crust, starting with the continental crust and the rocks exposed therein, moving on to oceanic crust (MORB and oceanic plateaus) and finishing with island arc crust. In addition to providing a descriptive geochemistry of the Earth's crust, the volume summarizes the processes responsible for crustal formation and modification, exchange between the crust and other Earth reservoirs (mantle, oceans and atmosphere), and examines the secular evolution of the crust.

Reprinted individual volume from the acclaimed Treatise on...

Though largely inaccessible, the geochemistry of Earth's mantle and core can be examined through a wide variety of approaches. Volume 2 focuses first on "remote" sensing using evidence from cosmochemical, seismic, petrologic and geochemical approaches. Mantle composition is then examined in detail through descriptions of mantle samples brought to Earth's surface through tectonic, volcanic, and volatile-outgassing processes. The volume concludes with examination of processes that modify the composition of the mantle and core including an early magma ocean, partial melting, element...

This volume covers the formation and biogeochemistry of a variety of important sediment types from their initial formation through their conversion (diagenesis) to sedimentary rocks. The volume deals with the chemical, mineralogical, and isotopic properties of sediments and sedimentary rocks and their use in interpreting the environment of formation and subsequent events in the history of sediments, and the nature of the ocean-atmosphere system through geological time.

Reprinted individual volume from the acclaimed Treatise on Geochemistry, (10 Volume Set, ISBN 0-08-043751-6,...

Researchers in geomorphology, geochemistry, quaternary geology, soil science, and mineralogy will welcome this volume, the first to focus exclusively on rates of silicate chemical weathering. Consisting largely of previously unpublished data from six countries, the volume examines the latest experimental, modelling, and field results.

New information is presented on topics of current research interest, including inferences about chemical mechanisms at the level of mineral surfaces, and data relating weathering rates to landscape evolution over millions of years. The volume...