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Books > Academic & Education > Professional & Technical > Geophysics
Magnetic methods are widely used in exploration, engineering,
borehole and global geophysics, and the subjects of this book are
the physical and mathematical principles of these methods
regardless of the area of application.
This self-contained monograph gives a thorough introduction to the
theory of gravity which is used as the basis for developing
applications in exploration and geodesy. In addition, a survey of
gravity instrumentation is given, with emphasis on the theory of
underlying these instruments. The book finishes with an exposition
of forward modeling and inverston, again emphasizing fundamental
principles.
The rhizosphere in soil environments refers to the narrow zone of soil influenced by the root and exudates. Microbial populations in the rhizosphere can be 10 - 100 times larger than the populations in the bulk soil. Therefore, the rhizosphere is bathed in root exudates and microbial metabolites and the chemistry and biology at the soil-root interface is governed by biotic (plant roots, microbes) and abiotic (physical and chemical) interactions.
Volcanic seismology represents the main, and often the only, tool to forecast volcanic eruptions and to monitor the eruption process. This book describes the main types of seismic signals at volcanoes, their nature and spatial and temporal distributions at different stages of eruptive activity. Following from the success of the first edition, published in 2003, the second edition consists of 19 chapters including significant revision and five new chapters. Organized into four sections, the book begins with an introduction to the history and topic of volcanic seismology, discussing the theoretical and experimental models that were developed for the study of the origin of volcanic earthquakes. The second section is devoted to the study of volcano-tectonic earthquakes, giving the theoretical basis for their occurrence and swarms as well as case stories of volcano-tectonic activity associated with the eruptions at basaltic, andesitic, and dacitic volcanoes. There were 40 cases of volcanic eruptions at 20 volcanoes that occurred all over the world from 1910 to 2005, which are discussed. General regularities of volcano-tectonic earthquake swarms, their participation in the eruptive process, their source properties, and the hazard of strong volcano-tectonic earthquakes are also described. The third section describes the theoretical basis for the occurrence of eruption earthquakes together with the description of volcanic tremor, the seismic signals associated with pyroclastic flows, rockfalls and lahars, and volcanic explosions, long-period and very-long-period seismic signals at volcanoes, micro-earthquake swarms, and acoustic events. The final section discuss the mitigation of volcanic hazard and include the methodology of seismic monitoring of volcanic activity, the examples of forecasting of volcanic eruptions by seismic methods, and the description of seismic activity in the regions of dormant volcanoes. This book will be essential for students and practitioners of
volcanic seismology to understand the essential elements of
volcanic eruptions.
Geophysical measurements, such as the lateral variations in seismic wave velocities that are imaged by seismic tomography, provide the strongest constraints on the structure of the Earth's deep interior. In order to interpret such measurements in terms of mineralogical/compositional models of the Earth's interior, data on the physical and chemical properties of minerals at high pressures and temperatures are essential. Knowledge of thermodynamics, phase equilibria, crystal chemistry, crystallography, rheology, diffusion and heat transport are required to characterize the structure and dynamics of the Earth's deep interior as well as the processes by which the Earth originally differentiated.
More than 20 countries generate electricity from geothermal
resources and about 60 countries make direct use of geothermal
energy. A ten-fold increase in geothermal energy use is foreseeable
at the current technology level.
This volume represents an effort to bring together communities of land-based hydrogeology and marine hydrogeology. The issues of submarine groundwater discharge and its opposite phenomenon of seawater invasion are discussed in this book from the geophysical, geochemical, biological, and engineering perspectives. This is where land hydrogeology and marine hydrogeology overlap. Submarine groundwater discharge is a rapidly developing research field. The SCOR and LOICZ of the IGBP have recently established a working group for this research. IASPO and IAHS under IUGG also recently formed a new joint committee "Seawater/Groundwater Interactions" to collaborate with oceanographers and hydrologists.
The objective of this book is to analyze the institutional barriers to implementing market-based climate policy, as well as to provide some opportunities to overcome them. The approach is that of institutional economics, with special emphasis on political transaction costs and path dependence.
Situated within the richest oil area in the world, the Arabian Gulf represents a stressed ecosystem with scarce published data and environmental studies.
This monograph is the last volume in the series 'Acoustic and
Elastic
The contents of this monograph are two-scope. First, it intends to
provide a synthetic but complete account of the thermodynamic and
kinetic foundations on which the reaction path modeling of
geological CO2 sequestration is based. In particular, a great
effort is devoted to review the thermodynamic properties of CO2 and
of the CO2-H2O system and the interactions in the aqueous solution,
the thermodynamic stability of solid product phases (by means of
several stability plots and activity plots), the volumes of
carbonation reactions, and especially the kinetics of
dissolution/precipitation reactions of silicates, oxides,
hydroxides, and carbonates.
Acoustic logging is a multidisciplinary technology involving basic theory, instrumentation, and data processing/interpretation methodologies. The advancement of the technology now allows for a broad range of measurements to obtain formation properties such as elastic wave velocity and attenuation, formation permeability, and seismic anisotropy that are important for petroleum reservoir exploration. With these advances, it is easier to detect and characterize formation fractures, estimate formation stress field, and locate/estimate petroleum reserves. The technology has evolved from the monopole acoustic logging into the multipole, including dipole, cross-dipole, and even quadrupole, acoustic logging measurements. The measurement process has developed from the conventional wireline logging into the logging-while-drilling stage.
This book is a collection of 22 selected papers from the homonymous Conference held in September 2003 Milos, Greece. The aim of the conference was to serve as a forum for the presentation and constructive discussion of the state-of-the-art and emerging issues on the South Aegean Volcanic Arc.
This book is a continuation of 'Acoustic and Elastic Wave Fields in
Geophysics, Part I' published in 2000. The second volume is
dedicated to propagation of linear plane, spherical and cylindrical
acoustic waves in different media. Chapter 1 is devoted to
principles of geometric acoustic in plane wave approximation. The
eikonal and transport equations are derived. Ray tracing and
wavefront construction techniques are explained. Chapter 2 deals
with dynamic properties of wave fields. The behavior of pressure
and displacements amplitudes in zero approximation is analysed in
two ways: using Poynting vector and solving the transport equation.
This chapter contains several examples related to shadow zones and
caustics. In Chapter 3 using the results of analysis of
high-frequency wave kinematics and dynamics some fundamental
aspects of Kirchhoff migration are described. Chapters 4 and 5 are
devoted to propagation of plane waves in media with flat boundaries
in the case of normal and oblique incidence. Special attention is
paid to the case when an incident angle exceeds the critical
angles. Formation of normal modes in the waveguide is discussed.
Chapter 6 deals with a spherical wave reflection and refraction.
The steepest descent method is introduced to describe the behavior
of reflected, transmitted, head and evanescent waves. In Chapter 7
propagation of stationary and transient waves in a waveguide formed
by a flat layer with low velocity are investigated. Normal modes
and waves related to the branch points of integrands under
consideration are studied. Dispersive properties of normal modes
are discussed. Chapter 8 describes wave propagation inside cylinder
in acoustic media. Several appendices are added to help the reader
understand different aspects of mathematics used in the book.
The book documents and explains, in three parts, geochemical
anomaly and mineral prospectivity mapping by using a geographic
information system (GIS). Part I reviews and couples the concepts
of (a) mapping geochemical anomalies and mineral prospectivity and
(b) spatial data models, management and operations in a GIS. Part
II demonstrates GIS-aided and GIS-based techniques for analysis of
robust thresholds in mapping of geochemical anomalies. Part III
explains GIS-aided and GIS-based techniques for spatial data
analysis and geo-information sybthesis for conceptual and
predictive modeling of mineral prospectivity. Because methods of
geochemical anomaly mapping and mineral potential mapping are
highly specialized yet diverse, the book explains only methods in
which GIS plays an important role. The book avoids using language
and functional organization of particular commercial GIS software,
but explains, where necessary, GIS functionality and spatial data
structures appropriate to problems in geochemical anomaly mapping
and mineral potential mapping. Because GIS-based methods of spatial
data analysis and spatial data integration are quantitative, which
can be complicated to non-numerate readers, the book simplifies
explanations of mathematical concepts and their applications so
that the methods demonstrated would be useful to professional
geoscientists, to mineral explorationists and to research students
in fields that involve analysis and integration of maps or spatial
datasets. The book provides adequate illustrations for more
thorough explanation of the various concepts.
"Geosciences, Environment and Man" has three major objectives, which determine the division in three parts of this volume: I. To consider the main natural geological processes interfering with and therefore threatening the activities of man: earthquakes, volcanic eruptions, land movements, floods, wind and coastal risks; main prevention and mitigation measures against these natural hazards are presented. II. To examine the exploitation of earth's natural resources such as materials, ores and minerals, fossil fuels, water, radioactivity, and the resulting consequences on solid Earth balance and future. III. To assess the hold level reached by the activities of man on planet surface envelopes through agriculture, urbanization, industrialization, and communication; the local to global effects of human influence triggered by recent demographic growth on underground, soils, water and air characters are taken into account. Both deteriorating and beneficial aspects of Earth - the interactions of man are emphasized, as well as mitigation or restoration measures and perspectives.
This book examines different classical and modern aspects of geophysical data processing and inversion with emphasis on the processing of seismic records in applied seismology.
The nature of global change in the Pacific Basin is poorly known
compared to other parts of the world. Climate, Environment, and
Society in the Pacific during the Last Millennium describes the
climate changes that occurred in the Pacific during the last
millennium and discusses how these changes controlled the broad
evolution of human societies, typically filtered by the effects of
changing sea level and storminess on food availability and
interaction. Covering the entire period since AD 750 in the
Pacific, this book describes the influences of climate change on
environments and societies during the Medieval Warm Period and the
Little Ice Age, focusing on the 100-year transition between these -
a period of rapid change known as the AD 1300 Event.
The theory of the Earth's climate evolution based on universal
chemical-physical laws of matter-energy transformation is presented
in the book. It shows how the process of Earth's core separation
has led to formation and evolution of the hydrosphere and
atmosphere. Having analyzed the processes of heat transfer in the
atmosphere, the writers developed the adiabatic theory of the
greenhouse effect, which was applied for analysis of climatic
changes on the Earth. The influence of changes in climate on
formation of mineral deposits and development of life on Earth was
considered and presented based on modeling of typical climatic
regimes. It shows that the anthropogenic effect on the Earth's
global temperature is negligible in comparison with the effect of
global forces of nature.
Adsorption of Metals by Geomedia II serves as a needed resource for
this topic which has received much attention during the past 25
years. The book provides an in-depth review of the field, followed
by numerous chapters that document the current status of adsorption
research for a variety of metals by geomedia ranging from
individual minerals to sediments and soils. Adsorption mechanisms
are detailed and precipitation is presented as a distinct sorption
process. Virtually all factors affecting the extent of metal
adsorption are examined, including the effects of selected anions,
competition among metals, pH, metal concentration, loading,
variable metal adsorption capacity, ionic strength, hydrogen
exchange and stoichiometry, and solids concentration. A variety of
adsorption models are briefly presented and some are used to extend
laboratory studies to field sites.
"The Geologic Time Scale 2012," winner of a 2012 PROSE Award Honorable Mention for Best Multi-volume Reference in Science from the Association of American Publishers, is the framework for deciphering the history of our planet Earth. The authors have been at the forefront of chronostratigraphic research and initiatives to create an international geologic time scale for many years, and the charts in this book present the most up-to-date, international standard, as ratified by the International Commission on Stratigraphy and the International Union of Geological Sciences. This 2012 geologic time scale is an enhanced, improved and expanded version of the GTS2004, including chapters on planetary scales, the Cryogenian-Ediacaran periods/systems, a prehistory scale of human development, a survey of sequence stratigraphy, and an extensive compilation of stable-isotope chemostratigraphy. This book is an essential reference for all geoscientists, including researchers, students, and petroleum and mining professionals. The presentation is non-technical and illustrated with numerous colour charts, maps and photographs. The book also includes a detachable wall chart of the complete time scale for use as a handy reference in the office, laboratory or field. The most detailed international geologic time scale available that contextualizes information in one single reference for quick desktop access. Gives insights in the construction, strengths, and limitations of the geological time scale that greatly enhances its function and its utility. Aids understanding by combining with the mathematical and statistical methods to scaled composites of global succession of events. Meets the needs of a range of users at various points in the workflow (researchers extracting linear time from rock records, students recognizing the geologic stage by their content).
Ultrahigh Pressure Metamorphism (UHPM) is a fast growing discipline
that was established 25 years ago after discoveries of high
pressure minerals, coesite and diamonds. The current explosion of
research on UHMP terranes reflects their significance for
understanding large scale mantle dynamics, major elements of plate
tectonics such as continental collisions, deep subduction and
exhumation, mountains building, geochemical recycling 'from surface
to the core', and a deep storage of light elements participating in
green-house effects in the atmosphere. This book provides insights
into the formation of diamond and coesite at very high pressures
and explores new ideas regarding the tectonic setting of this style
of metamorphism.
This book describes the structure-property-composition relationships for silicate glasses and melts of industrial and geological interest. From Antiquity to the 20th century, an introductory chapter presents this subject in a historical perspective. Basic concepts are then discussed in three chapters where attention is paid to the glass transition and its various consequences on melt and glass properties, to the structural and physical differences between amorphous and crystalline silicates, and to the mutual relationships between local order, energetics and physical properties.
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, this title primarily focuses on the far reaching exploration benefits of anisotropic processing.
Written by one of Korea's most respected earth scientists, "Geology and Sedimentology of the Korean Peninsula" analyzes sedimentary facies, basin evolution, and sequence stratigraphy to provide answers to depositional processes and environmental changes through the Earth's history, including tectonic events, climate changes, and sea-level fluctuations. This is one of the first books covering the geology of the Korean peninsula. It offers an in-depth exploration of this region, which also allows comparison with sedimentary basins around the world. This is an important book for students, researchers, and professionals working in the geography of East Asia. The study of sedimentary basins can help advance basic
understanding of how the Earth's crust developed, as well as offer
insights into the influence of environmental and climate change.
Sedimentary basins are also of interest due to their importance in
the exploration and recovery of natural resources, including oil
and gas, water, and industrial minerals. |
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