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Books > Earth & environment > Earth sciences > Structure & properties of the Earth > Volcanology & seismology
Mount Etna in Sicily is one of a small number of active volcanoes in the Mediterranean area, where written history survives from more than two millennia: its eruptions are therefore among the best documented in the world. This account of the eruption of 1819 was written by the chemist and vulcanologist Carmelo Maravigna, a professor at the University of Catania, who was commissioned by his colleagues to make scientific observations of the phenomena and to publish them in a clear and methodical format. Maravigna's book opens with the diary of his own observations from 27 May to 5 August 1819; it then describes the physical consequences of the eruption, including the spread and depth of lava flows, and discusses various theories of volcanic activity. The sixth chapter analyses the mineral deposits in the lava, and the last describes the volcano returned to its dormant state.
Most of the world's great volcanic massive suphide ore deposits, porphyry copper ores, and many of its richest gold veins occur in association with basalt-andesite-dactite-rhyolite laval suites that have erupted from ancient volcanic islands and their Precambrian equivalents. These volcanic arcs and their related aquatic-volcanic environments are now recognized as critical to an understanding of the evolution of the earth's crust and the origin of many important ore types. This book is concerned with the behavior of the 'ore elements'--copper, zinc, lead, cobalt, nickel, barium, and others--in young metamorphosed, volcanic arc lava suites, as these evolve from high-magnesium basalts to rhyolites. Using mostly the Pleistocene to recent lavas of the Solomon Islands younger volcanic suite, the author examines the patterns of abundance of these elements in rock constituents and describes the ways in which the metals may be enriched or impoverished in the residual melt as an arc lava series evolves from basalt to rhyolite. The book presents state-of-the-art information that will be indispensable to vulcanologists, geochemists, and mining geologists.
"Earthquake and Volcano Deformation" is the first textbook to present the mechanical models of earthquake and volcanic processes, emphasizing earth-surface deformations that can be compared with observations from Global Positioning System (GPS) receivers, Interferometric Radar (InSAR), and borehole strain- and tiltmeters. Paul Segall provides the physical and mathematical fundamentals for the models used to interpret deformation measurements near active faults and volcanic centers. Segall highlights analytical methods of continuum mechanics applied to problems of active crustal deformation. Topics include elastic dislocation theory in homogeneous and layered half-spaces, crack models of faults and planar intrusions, elastic fields due to pressurized spherical and ellipsoidal magma chambers, time-dependent deformation resulting from faulting in an elastic layer overlying a viscoelastic half-space and related earthquake cycle models, poroelastic effects due to faulting and magma chamber inflation in a fluid-saturated crust, and the effects of gravity on deformation. He also explains changes in the gravitational field due to faulting and magmatic intrusion, effects of irregular surface topography and earth curvature, and modern concepts in rate- and state-dependent fault friction. This textbook presents sample calculations and compares model predictions against field data from seismic and volcanic settings from around the world. "Earthquake and Volcano Deformation" requires working knowledge of stress and strain, and advanced calculus. It is appropriate for advanced undergraduates and graduate students in geophysics, geology, and engineering. Professors: A supplementary Instructor's Manual is available for this book. It is restricted to teachers using the text in courses. For information on how to obtain a copy, refer to: http: //press.princeton.edu/class_use/solutions.html
The deep oceans and global seafloor are truly Earth's last frontier: largely unexplored, yet critical to our survival on this planet. This magnificent, full-color volume provides a unique, fascinating view of Earth's seafloor and underlying oceanic crust, beginning with a historical summary of seafloor exploration and its developing technologies. Later chapters discuss the major geological components of Earth's crust and the myriad environments along the global mid-ocean ridges, including active volcanoes, rift zones and hydrothermal vents - Earth's most extreme environments. The authors present simple explanations of how the various geological and hydrothermal features of the seafloor are formed through physical, chemical and biological processes, and also describe the life they host. Supported by online visual and teaching resources, including video clips and images, this book forms an indispensable reference for researchers, teachers and students of marine geoscience, and a visually stunning resource which all oceanographers and enthusiasts will want on their bookshelves.
Seismosaurus: The Earth Shaker is a richly illustrated telling of the trials and triumphs of the discovery and excavation of Seismosaurus hallorum, the longest dinosaur yet known - and possibly the largest land animal ever to have lived. This is the first book to explain clearly the science used by paleontologists and the new cutting-edge techniques that led to Seismosaurus's discovery. David Gillette's first-person account of the project answers the most frequently asked questions about Seismosaurus: How was it discovered? How do we know it is a new species? How was it named? And more intriguing still, how did it die? His chronicle also examines the sauropods in general - the giant dinosaurs that with Seismosaurus include Apatosaurus (Brontosaurus), Brachiosaurus, and Diplodocus. This lively tale of discovery is woven with anecdotes and descriptions of the details of the excavation, which began with small jackhammers and later incorporated such sophisticated machinery as ground-penetrating radar that "looks" for fossils underground with radio waves. The story moves from the excavation site in 1985 to current advances in research and then back to the prehistoric age as Gillette, in adventure-narrative style, describes the habitat, habits, and characteristics of the sauropod, right down to Seismosaurus's gastroliths - stomach stones that helped in digestion. Part catalogue of the workings of paleontological science in the 1990s, the book also illustrates the exciting collaboration between David Gillette and the chemists and physicists who helped to reconstruct Seismosaurus and its life. Excavation of the Seismosaurus skeleton was completed in the fall of 1993. Some bones are already ondisplay at the New Mexico Museum of Natural History. Meanwhile, Mark Hallett, a consultant on Steven Spielberg's Jurassic Park, brings Seismosaurus to life in more than eighty marvelous color and black-and-white illustrations. Seismosaurus: The Earth Shaker is a delight!
The theory of plate tectonics transformed earth science. The hypothesis that the earth's outermost layers consist of mostly rigid plates that move over an inner surface helped describe the growth of new seafloor, confirm continental drift, and explain why earthquakes and volcanoes occur in some places and not others. Lynn R. Sykes played a key role in the birth of plate tectonics, conducting revelatory research on earthquakes. In this book, he gives an invaluable insider's perspective on the theory's development and its implications. Sykes combines lucid explanation of how plate tectonics revolutionized geology with unparalleled personal reflections. He entered the field when it was on the cusp of radical discoveries. Studying the distribution and mechanisms of earthquakes, Sykes pioneered the identification of seismic gaps-regions that have not ruptured in great earthquakes for a long time-and methods to estimate the possibility of quake recurrence. He recounts the various phases of his career, including his antinuclear activism, and the stories of colleagues around the world who took part in changing the paradigm. Sykes delves into the controversies over earthquake prediction and their importance, especially in the wake of the giant 2011 Japanese earthquake and the accompanying Fukushima disaster. He highlights geology's lessons for nuclear safety, explaining why historic earthquake patterns are crucial to understanding the risks to power plants. Plate Tectonics and Great Earthquakes is the story of a scientist witnessing a revolution and playing an essential role in making it.
When the volcano Tambora erupted in Indonesia in 1815, as many as 100,000 people perished as a result of the blast and an ensuing famine caused by the destruction of rice fields on Sumbawa and neighboring islands. Gases and dust particles ejected into the atmosphere changed weather patterns around the world, resulting in the infamous ''year without a summer'' in North America, food riots in Europe, and a widespread cholera epidemic. And the gloomy weather inspired Mary Shelley to write the gothic novel "Frankenstein." This book tells the story of nine such epic volcanic events, explaining the related geology for the general reader and exploring the myriad ways in which the earth's volcanism has affected human history. Zeilinga de Boer and Sanders describe in depth how volcanic activity has had long-lasting effects on societies, cultures, and the environment. After introducing the origins and mechanisms of volcanism, the authors draw on ancient as well as modern accounts--from folklore to poetry and from philosophy to literature. Beginning with the Bronze Age eruption that caused the demise of Minoan Crete, the book tells the human and geological stories of eruptions of such volcanoes as Vesuvius, Krakatau, Mount Pelee, and Tristan da Cunha. Along the way, it shows how volcanism shaped religion in Hawaii, permeated Icelandic mythology and literature, caused widespread population migrations, and spurred scientific discovery. From the prodigious eruption of Thera more than 3,600 years ago to the relative burp of Mount St. Helens in 1980, the results of volcanism attest to the enduring connections between geology and human destiny."
Volcanologists venture to treacherous volcanoes the world over in the pursuit of their science. They work around craters of boiling magma and amidst smoke, flames, scorched rocks, and clouds of noxious gases--balancing personal risk against advancing knowledge about one of nature's most dangerous and unpredictable forces. Richard Fisher, a world-renowned volcanologist, has had more than forty years of experience in the field. In this book, he blends autobiography with clear, accessible science to introduce readers to the basics of volcanology and to the wonders of volcanoes that he has studied and learned to both fear and admire. In the course of the book, we follow Fisher as he descends into the steaming crater of the Soufri re Volcano on the island of St. Vincent, as he conducts research on lava flows on the desolate south shore of the Island of Hawaii, and as he struggles to understand the explosion at Mount St. Helens. We learn about his pioneering work on pyroclastic flows and surges--the hurricanes of gases, molten lava, and volcanic debris that cause most of the death and destruction when volcanoes explode. He tells of solving a historic scientific problem at Mount Pelee, Martinique, where 29,000 people were killed in a pyroclastic flow in 1902. Fisher also offers a volcanologist's view of the explosion of Mount Vesuvius that devastated Pompeii and Herculaneum. He writes about the cultural rewards and challenges of conducting research in isolated areas of such countries as Argentina, Mexico, and China. And he discusses the early influences that steered him toward volcanology--including his army experiences as a witness to two atom-bomb explosions at Bikini atoll. "Out of the Crater" is written in an inviting, nontechnical style. With its deft combination of personal stories and scientific information, it is an inspiring account of a remarkable life and a compelling examination of some of the most spectacular forces shaping the face of the Earth.
Seismic data must be interpreted using digital signal processing techniques in order to create accurate representations of petroleum reservoirs and the interior structure of the Earth. This book provides an advanced overview of digital signal processing (DSP) and its applications to exploration seismology using real-world examples. The book begins by introducing seismic theory, describing how to identify seismic events in terms of signals and noise, and how to convert seismic data into the language of DSP. Deterministic DSP is then covered, together with non-conventional sampling techniques. The final part covers statistical seismic signal processing via Wiener optimum filtering, deconvolution, linear-prediction filtering and seismic wavelet processing. With over sixty end-of-chapter exercises, seismic data sets and data processing MATLAB codes included, this is an ideal resource for electrical engineering students unfamiliar with seismic data, and for Earth Scientists and petroleum professionals interested in DSP techniques.
What if Troy was not destroyed in the epic battle immortalized by Homer? What if many legendary cities of the ancient world did not meet their ends through war and conquest as archaeologists and historians believe, but in fact were laid waste by a force of nature so catastrophic that religions and legends describe it as the wrath of god? "Apocalypse" brings the latest scientific evidence to bear on biblical accounts, mythology, and the archaeological record to explore how ancient and modern earthquakes have shaped history--and, for some civilizations, seemingly heralded the end of the world. Archaeologists are trained to seek human causes behind the ruins they study. Because of this, the subtle clues that indicate earthquake damage are often overlooked or even ignored. Amos Nur bridges the gap that for too long has separated archaeology and seismology. He examines tantalizing evidence of earthquakes at some of the world's most famous archaeological sites in the Mediterranean and elsewhere, including Troy, Jericho, Knossos, Mycenae, Armageddon, Teotihuacan, and Petra. He reveals what the Bible, the "Iliad," and other writings can tell us about the seismic calamities that may have rocked the ancient world. He even explores how earthquakes may have helped preserve the Dead Sea Scrolls. As Nur shows, recognizing earthquake damage in the shifted foundations and toppled arches of historic ruins is vital today because the scientific record of world earthquake risks is still incomplete. "Apocalypse" explains where and why ancient earthquakes struck--and could strike again."
The length of Aegean arc in south-west Turkey has been deter mined by the use of intermediate focal depth earthquakes which occurred between 1900-1985 in the south-west of Turkey (34.00- 38.00 Nand 27.00-32.00 E). Intermediate focal depth earthqua kes in south-west Turkey revealed the presence of a seismic Benioff zone caused by underthrusting of the African litho spheric plate by the Aegean arc. In order to determine the geometry of underthrustin%detailed epicenter maps of the in termediate depth earthquakes in south-west of Turkey were pre pared. It is known that these earthquakes brought great harm in the past. Investigation of time distribution of them will help to predict the occurrence of them in the future. These intermediate focal depth earthquakes can be differenti ated from deep ones by their micro- and macroseismic proper ties. Papazachos (1969) and Comninakis (1970) found that the foci of these earthquakes are in a zone underthrusting exten ding from the East Mediterranean to the Aegean arc. Morgan (1968) and Le pichori (1968) defined three plates which are important in East Mediterranean tectonics. These are the Afri ca, Arabic and Eurasian plates. They define wide earthquake belt on the boundaries between the African and Eurasian plate."
Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 160.Understanding the inner workings of our planet and its relationship to processes closer to the surface remains a frontier in the geosciences. Manmade probes barely reach 10 km depth and volcanism rarely brings up samples from deeper than 150 km. These distances are dwarfed by Earth's dimensions, and our knowledge of the deeper realms is pieced together from a range of surface observables, meteorite and solar atmosphere analyses, experimental and theoretical mineral physics and rock mechanics, and computer simulations. A major unresolved issue concerns the nature of mantle convection, the slow (1-5 cm/year) solid-state stirring that helps cool the planet by transporting radiogenic and primordial heat from Earth's interior to its surface. Expanding our knowledge here requires input from a range of geoscience disciplines, including seismology, geodynamics, mineral physics, and mantle petrology and chemistry. At the same time, with better data sets and faster computers, seismologists are producing more detailed models of 3-D variations in the propagation speed of different types of seismic waves; new instrumentation and access to state-of-the-art community facilities such as synchrotrons have enabled mineral physicists to measure rock and mineral properties at ever larger pressures and temperatures; new generations of mass spectrometers are allowing geo-chemists to quantify minute concentrations of diagnostic isotopes; and with supercomputers geodynamicists are making increasingly realistic simulations of dynamic processes at conditions not attainable in analogue experiments. But many questions persist. What causes the lateral variations in seismic wavespeed that we can image with mounting accuracy? How reliable are extrapolations of laboratory measurements on simple materials over many orders of magnitude of pressure and temperature? What are the effects of volatiles and minor elements on rock and mineral properties under extreme physical conditions? Can ab initio calculations help us understand material behavior in conditions that are still out of reach of laboratory measurement? What was the early evolution of our planet and to what extent does it still influence present-day dynamics? And how well do we know such first-order issues as the average bulk composition of Earth?
3-D seismic data have become the key tool used in the petroleum industry to understand the subsurface. In addition to providing excellent structural images, the dense sampling of a 3-D survey makes it possible to map reservoir quality and the distribution of oil and gas. Topics covered in this book include basic structural interpretation and map-making; the use of 3-D visualisation methods; interpretation of seismic amplitudes, including their relation to rock and fluid properties; and the generation and use of AVO and acoustic impedance datasets. This new paperback edition includes an extra appendix presenting new material on novel acquisition design, pore pressure prediction from seismic velocity, elastic impedance inversion, and time lapse seismics. Written by professional geophysicists with many years' experience in the oil industry, the book is indispensable for geoscientists using 3-D seismic data, including graduate students and new entrants into the petroleum industry.
Unless they research the subject for themselves, many people do not realise that the origins and development of the human entity are largely an unresolved mystery. Before the Author's own research, he was among them. He found that he also had been subtly indoctrinated with such remarks 'cousins' and 'relatives' with regard to the apes and assumed like most others, that all the facts where in. When you read the work, you will find that this is simply not true. So begins 'The Human Enigma', a truly epic enquiry into the origins of our world and the creatures that walk upon. In particular, it examines the human brain as a uniquely wonderful creation which can be viewed as a gift from God (or was it the gods?) besides Darwinian evolution and Biblical creation. This book explores the fanatic proposition that mankind's rapid development with regard to the human brain may have been influenced by extra terrestrial sources. This work refers to, and draws together the previous work of respected scientists and looks at the future scenarios that the latest genetic and environmental sciences are pointing towards.
Geologically Active contains over 500 papers from 44 countries worldwide, which were presented at the 11th Congress of the IAEG, and includes the state-of-the-art on practise in engineering geology. Engineering geology now extends into a host of linked fields: disaster risk management and climate change, preservation of lifelines, geophysics, interpretation of satellite imagery, communication, instrumentation, mining, tunnelling, groundwater, rehabilitation and brown-field development, wine, recyclable materials, ethics, and education. Communication with non-specialists and developing green solutions has never been more important and the industry is evolving tools and emerging ideas to more appropriately achieve this. This volume brings together engineering, science and practice to focus on the very real effects of active geological processes on communities and infrastructure and their development. The theme of Geologically Active is developed through five chapters focussing on assessment and identification of natural hazards, the meeting of geological phenomena with people and infrastructure to create risk, approaches to hazard mitigation around the world, application of engineering geological techniques and practice, site investigation and geotechnical modelling, and engineering geology in the global economy, bridging the gap between scientists, engineers and non-practitioners in a changing world environment. Geologically Active encourages the transformation of science research into practice, offering a connection between scientific progress and community resilience, and will be invaluable to engineering and geological academics and consultants, government organizations, and power and mining companies.
Why do earthquakes happen? What properties control the dynamic rupture and what are the processes at play? Chapters in the present volume capture the current state of the art by displaying an overview of the existing knowledge on the physics of dynamic faulting and promote multidisciplinary contributions on the observational and experimental fault fabric and mechanics, the evolution of fault zone physical and chemical properties, dynamic rupture processes and physically, and observationally, consistent numerical modeling of fault zone during seismic rupture. This volume examines questions such as: * What are the dynamics processes recorded in fault gouge? * What can we learn on rupture dynamic from laboratory experiments? * How on-fault and off-fault properties affect seismic ruptures? How do they evolve trough time? * Insights from physically, and observationally, consistent numerical modeling Fault Zone Dynamic Processes: Evolution of Fault Properties During Seismic Rupture is a valuable contribution for Earth s scientists, researchers and students interested in the earthquakes processes and properties of on-fault and off-fault zones. Its multidisciplinary content is relevant to a broad audience: structural geologist, experimentalists, rocks mechanicians, seismologist, geophysicists and modelers.
Your interest is bound to be held by the contents of this work and the amazing characters, their achievements and the other topics dealt with herein. A search team was formed to find any remains of the Ark of Noah. They recorded on tape, the amazing account by an elderly Armenian living in the USA who had climbed onto the petrified hulk of the Holy Ark, when his uncle took him up Mount Ararat as a boy. His recorded account was subjected to the P.S.E Test (Lie Test)and it passed. Read the amazing account of the incredible Count St Germain, philosopher, alchemist and linguist, who could manufacture diamonds and transmute gold and was friend of Louis XV. Voltaire said to him He is a man who knows everything and never dies. He discovered the elixir of youth. Various nobles and dignitaries met him over the decades and he always looked the same. Read about N.D.E's (near death experiences) ghosts, spirits and the paranormal, the Atlantis myth, the story of Noah and more. The title given to this work will now be obvious to all.
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