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Books > Earth & environment > Earth sciences > Geology & the lithosphere > Economic geology > General
A 'soft-rock' petroleum-type approach to exploration for
'hard-rock' minerals in sedimentary basins D. Taylor I.
Introduction Several major groups of ore deposits are found as
tabular, stratiform bodies or as cross- cutting but essentially
stratabound deposits within sedimentary basins. Important exam-
ples are oxide and carbonate ores of iron and manganese, copper and
zinc-lead sulphides and gold-uranium deposits. Where the host
basins have been strongly in- verted and deeply eroded and the
mineralized horizons brought to outcrop, the laterally extensive
nature of the mineralization usually results in outcrop or subcrop
of the ore itself. Direct detection by geological or geochemical
prospecting is then possible. Major deposits also occur in basins
which have not been strongly deformed and deeply eroded as
non-outcropping sub-horizontal sheets (Polish Kupferschiefer
deposits of the fore-Sudetic Monocline) or linear belts (Vibumam
Trend, Missouri, Admiral Bay, NW Australia). I believe that both
the Polish Kupferschiefer and Admiral Bay de- posits were found by
chance during oil and gas exploration, and deposits of this type
are similar in attitude and dimensions to small-medium size oil and
gasfields.
The proceedings of the 6th International Symposium on Mining in the
Arctic, held in Greenland in 2001. The papers cover a wide variety
of topics, including: mining exploration and exploitation; mining
engineering and mine design; environmental impact of mining in the
Arctic; and more.
This book is a collection of papers that are devoted to various
aspects of interactions between mineralogy and material sciences.
It will include reviews, perspective papers and original research
papers on mineral nanostructures, biomineralization, micro- and
nanoporous mineral phases as functional materials, physical and
optical properties of minerals, etc. Many important materials that
dominate modern technological development were known to
mineralogists for hundreds of years, though their properties were
not fully recognized. Mineralogy, on the other hand, needs new
impacts for the further development in the line of modern
scientific achievements such as bio- and nanotechnologies as well
as by the understanding of a deep role that information plays in
the formation of natural structures and definition of natural
processes. It is the idea of this series of books to provide an
arena for interdisciplinary discussion on minerals as advanced
materials.
The structural optimization procedure presented in this book makes
it possible to achieve seismic protection through integrated
structural/control system design. In particular, it is explained
how slender structural systems with a high seismic performance can
be achieved through inclusion of viscous and viscoelastic dampers
as an integral part of the system. Readers are provided with
essential introductory information on passive structural control
and passive energy dissipation systems. Dynamic analyses of both
single and multiple degree of freedom systems are performed in
order to verify the achievement of pre-assigned performance
targets, and it is explained how the optimal integrated design
methodology, also relevant to retrofitting of existing buildings,
should be applied. The book illustrates how structural control
research is opening up new possibilities in structural forms and
configurations without compromising structural performance.
This is the first book entirely devoted to travertine, a material
in use for over 4000 years. The single-author work is a valuable
reference source for travertine, covering all aspects of travertine
origins, formation, composition, flora and fauna, occurrence and
utilisation, as well as covering allied continental carbonates such
as lake marls, calcretes and beachrocks.
Travertine, some forms of which are often known as a ~tufaa (TM),
is of particular significance as a source of environmental
information (fossils and isotope geochemistry), often permitting
the reconstruction of past environments. Reviews of dating
techniques, classification and geomorphology are included and the
author attempts to provide an unbiased but critical appraisal of
current models of travertine formation.
Currently, travertine is in great demand as a building and
ornamental stone. It has also been exploited in unconventional
ways, such as a ~petrifying springsa (TM) and by way of unusual and
little known artistic techniques. Scaling of pipes and boilers is
often the result of processes allied to travertine formation. The
phenomenon is described parallel to methods of scale elimination
and compared with natural processes where travertine formation is
inhibited. Travertine sites are of special scientific interest,
with their rich and often unique floras and faunas displaying their
unique biodiversity, and their unusual and often fragile biota.
Conservation issues are discussed, together with the description of
travertine fossils and occurrences throughout the geological
record.
The content will be of interest to carbonate sedimentologists,
hydrobiologists, palaeoclimatologists, physicalgeographers, water
treatment engineers, astrobiologists, architects, and sculptors.
More than half of the world's petroleum is to be found in carbonate
rocks, for example in the Middle East, the former USSR and in North
America. These rocks show a bewildering diversity of grains and
textures, due in part to the wealth of different fossil organisms
which have contributed to carbonate sedimentation, and in part to a
wide variety of diagenetic processes which can radically modify
textures and obscure the depositional fabric. Careful petrographic
study with a polarising microscope is a key element of any study of
carbonate sediments, as a companion to field or core logging, and
as a necessary precursor to geochemical analysis. This atlas, which
illustrates in full colour a range of features not attempted in any
general textbook, is designed as a laboratory manual to keep beside
the microscope, as an aid to identifying grain types and textures
in carbonates. It appeals alike to undergraduate and graduate
students and to professionals in teaching institutions, research
laboratories and industry.
This volume contains the edited papers prepared by lecturers and
participants of the NATO Advanced Study Institute on "Statistical
Treatments for Estimation of Mineral and Energy Resources" held at
II Ciocco (Lucca), Italy, June 22 - July 4, 1986. During the past
twenty years, tremendous efforts have been made to acquire
quantitative geoscience information from ore deposits, geochemical,
geophys ical and remotely-sensed measurements. In October 1981, a
two-day symposium on "Quantitative Resource Evaluation" and a
three-day workshop on "Interactive Systems for Multivariate
Analysis and Image Processing for Resource Evaluation" were held in
Ottawa, jointly sponsored by the Geological Survey of Canada, the
International Association for Mathematical Geology, and the
International Geological Correlation Programme. Thirty scientists
from different countries in Europe and North America were invited
to form a forum for the discussion of quantitative methods for
mineral and energy resource assessment. Since then, not only a
multitude of research projects directed toward quantitative
analysis in the Earth Sciences, but also recent advances in
hardware and software technology, such as high-resolution graphics,
data-base management systems and statistical packages on mini and
micro-computers, made it possible to study large geoscience data
sets. In addition, methods of image analysis have been utilized to
capture data in digital form and to supply a variety of tools for
charaterizing natural phenomena."
This book presents the development of an optimization platform for
geotechnical engineering, which is one of the key components in
smart geotechnics. The book discusses the fundamentals of the
optimization algorithm with constitutive models of soils. Helping
readers easily understand the optimization algorithm applied in
geotechnical engineering, this book first introduces the
methodology of the optimization-based parameter identification, and
then elaborates the principle of three newly developed efficient
optimization algorithms, followed by the ideas of a variety of
laboratory tests and formulations of constitutive models. Moving on
to the application of optimization methods in geotechnical
engineering, this book presents an optimization-based parameter
identification platform with a practical and concise interface
based on the above theories. The book is intended for undergraduate
and graduate-level teaching in soil mechanics and geotechnical
engineering and other related engineering specialties. It is also
of use to industry practitioners, due to the inclusion of
real-world applications, opening the door to advanced courses on
both modeling and algorithm development within the industrial
engineering and operations research fields.
The interpretation of ancient sedimentary environments is a vital
tool in the search for petroleum, coal and other economic
resources. This fourth edition of this text has been rewritten to
reflect advances in the subject, in particular stratigraphy and new
geophysical techniques. New case studies have been added where
appropriate.
This book, based on Transport and Urban Development COST Action
TU1208, presents the most advanced applications of ground
penetrating radar (GPR) in a civil engineering context, with
documentation of instrumentation, methods and results. It explains
clearly how GPR can be employed for the surveying of critical
transport infrastructure, such as roads, pavements, bridges and
tunnels and for the sensing and mapping of underground utilities
and voids. Detailed attention is also devoted to use of GPR in the
inspection of geological structures and of construction materials
and structures, including reinforced concrete, steel reinforcing
bars and pre/post-tensioned stressing ducts. Advanced methods for
solution of electromagnetic scattering problems and new data
processing techniques are also presented. Readers will come to
appreciate that GPR is a safe, advanced, non destructive and
noninvasive imaging technique that can be effectively used for the
inspection of composite structures and the performance of
diagnostics relevant to the entire life cycle of civil engineering
works.
This thesis summarizes the metallogenetic mechanism of the Galinge
skarn deposit based on integrated knowledge of tectonics,
geochemistry, geochronology, petrology, mineralogy, thermodynamics
and hydrothermal fluids. It also discusses the multistage growth
characteristics of various skarn minerals in which the varying
compositions reflect the evolution of the hydrothermal fluid. The
multidisciplinary nature of this research sheds new light on
reconstructing metallogenetic processes successfully. It outlines
the main aspects of skarn zonation based on the dominant contents
of the skarn minerals and the wall rock compositions. In addition,
it focuses on volatile-rich minerals including tourmaline and
hastingsite, highlighting the importance of the volatile component
in the skarn deposit. Lastly, it describes the regional
tectonic-magmatic evolutionary history to explain the metallogenic
principles, which can be used to guide prospecting in the field.
Geochemical methods of prospecting for and evaluation of minerals
are applied widely today at all stages of geological exploration.
However, geochemical methods of prospecting for many classes of
non-metallic minerals have not been elaborated.
This book is a completely revised, updated and expanded edition of
the publication by the same authors, which was published in 1987.
The contains a collection the latest data on geochemical
prospecting for non-metals, which is valuable in view of the
anticipated increase of consumption and utilization of non-metallic
minerals in the future.
The information on various types of raw material is presented in
the following sequence: 1) general data (genetic types, conditions
of formation, geological prospecting indications); 2) indicator
minerals and elements; 3) geochemical methods of prospecting along
dispersion trains and haloes, plus hydrogeochemical and
geobotanical methods; 4) primary endogenic haloes; 5) vertical
geochemical zonality; 6) methods, stages and sequence of work.
Produced sand causes a lot of problems. From that reasons sand
production must be monitored and kept within acceptable limits.
Sand control problems in wells result from improper completion
techniques or changes in reservoir properties. The idea is to
provide support to the formation to prevent movement under stresses
resulting from fluid flow from reservoir to well bore. That means
that sand control often result with reduced well production.
Control of sand production is achieved by: reducing drag forces
(the cheapest and most effective method), mechanical sand bridging
(screens, gravel packs) and increasing of formation strength
(chemical consolidation). For open hole completions or with
un-cemented slotted liners/screens sand failure will occur and must
be predicted. Main problem is plugging. To combat well failures due
to plugging and sand breakthrough Water-Packing or Shunt-Packing
are used.
The cost-effective recovery of oil and gas depends on an
understanding of both reservoir and petroleum engineering, yet
these are, increasingly, becoming self-contained fields.
Hydrocarbon Reservoir and Well Performance brings the two subjects
together for the first time and, by explaining both fundamental
concepts and actual practice, helps in understanding their
interrelation. Using both SI and Imperial units, this book will be
of interest to students of petroleum science, and practitioners in
reservoir geology, evaluation and production.
""" This book has been written as a guide to the management and use
of formulated feeds in intensive fish and shrimp culture. While its
focus is on the use of commercially pro duced feeds in intensive
production systems, it is anticipated that many of the practical
issues covered will be of equal interest to those fish farmers who
make their own feeds and to those who use formulated feeds in less
intensive systems. Feeds and feeding are the major variable
operating costs in intensive aquaculture and the book is primarily
in tended to aid decision making by fish farm managers in areas of
feeding policy. The dramatic increases in aquaculture production
seen over the past 15 years have been made possible, in large part,
by gains in our understanding of the food and feed ing requirements
of key fish and shrimp species. A global aquaculture feeds industry
has developed and a wide range of specialist feeds is now sold. The
new options in feeds and feeding systems, which are becoming
available, necessitate continual review by farmers of their feeding
policies, where choices must be made as to appropriate feed types
and feeding methods. While growth rates and feed conversion values
are the prime factors of interest to farmers, other important
issues, such as product qualiry and environmental impacts of farm
effluents, are also directly related to feed management practices."
This book is offered as a contribution to the spread of knowledge
and understanding in the field of strata mechanics in coal mining.
It is written for professionals in the coal mining industry and
students of mining engineering and includes some of the author's
own philosophy of coal mine stability.
PGE V-Voisey's Bay (Canada) D -Duluth Complex (USA) K-Kambalda
(Australia) M-Merensky Reef (Bushveld) N -Noril'sk region (Russia)
P-Pechenga(Russia) S-Sudbury (Canada) T-Thompson (Canada) J
-Jinchuan (China) L-Lac des lies (Canada) PR-Platreef (Bushveld)
Po-Portimo Complex (Finland) R-Raglan (Canada) U-UG-2 chromitite
(Bushveld) Z-Great Dyke of Zimbabwe e-Mt Keith (Australia) . a.
-Perseverance (Australia) +-Stillwater (USA) 0 0 0 'c9 -~ Ni+Co Cu
Relative value of Ni+Co Fig. 1. 1. Relative va1ue of the
contributions of Ni+Co, Cu and PGE to the mag- matic su1fide
deposits listed in Table 1. 1 sulfide deposits are closely related
to bodies of mafic or ultramafic rock, and the most convenient way
in which to consider them is in terms of the type of magma
responsible for the rocks with which they are associated. Typically
the type of magma involved bears a close relationship to the tec-
tonic setting within which it was emplaced. The locations of
important deposits, both Ni-Cu dominant and PGE dominant, are shown
in Fig. 1. 2. Considering first Ni-Cu deposits, these are further
divided into six classes (Table 1. 2) on the basis of their
associated magma type. Class NC- 1 (Chap. 3) comprises those
related to komatiitic magmatism. Currently known deposits fall into
two sub-classes, those related to Archean komatiites ( e. g. the
deposits of Western Australia, Zimbabwe and the Abitibi belt of
Canada) and those related to Proterozoic komatiites (e. g. those
ofthe Raglau and Thompson belts which arebothin Canada)l.
This book combines issues several critical ones in the energy field
(low-energy technologies, renewable energies such as the hydrogen
economy, and geothermal energy). Moving towards a more sustainable
world requires a complete revolution in the way we manage energy
and resources. However, from an academic perspective, this theme is
so broad that most educators and researchers tend to focus on just
one aspect, and maintaining the broad viewpoint which is necessary
for making strategic judgments becomes difficult. Tohoku University
addressed this challenge when developing a new education and
training program for environmental leaders and brought together the
extensive range of expertise available in specific fields into one
special course which forms the basis of this book. Now in one
volume, both students and educators can be brought up to date on a
wide range of critical issues currently being addressed in the
field of energy and resources. Chapters on resources include
availability (for instance, rare earth metals), extraction and
recycling of metals and plastics, and technological solutions to
specific waste-disposal problems. In addition, broader strategic
issues such as limits to growth and the interaction between the
economic system and environmental issues are addressed. Even though
each chapter provides topical data and knowledge from disparate and
specialized fields, the book is written at a level that is readily
understandable by students from all scientific, engineering, and
humanities fields.
This book includes keynote presentations, invited speeches, and
general session papers presented at the 7th International Symposium
on Environmental Vibration and Transportation Geodynamics (formerly
the International Symposium on Environmental Vibration), held from
October 28 to 30, 2016 at Zhejiang University, Hangzhou, China. It
discusses topics such as the dynamic and cyclic behaviors of soils,
dynamic interaction of vehicle and transportation infrastructure;
traffic-induced structure and soil vibrations and wave propagation;
soil-structure dynamic interaction problems in transportation;
environmental vibration analysis and testing; vehicle, machine and
human-induced vibrations; monitoring, evaluation and control of
traffic induced vibrations; transportation foundation deformation
and deterioration induced by vibration; structural safety and
serviceability of railways, metros, roadways and bridges; and
application of geosynthetics in transportation infrastructure. It
is a valuable resource for government managers, scientific
researchers, and engineering professionals engaged in the field of
geotechnical and transportation engineering.
This book concisely describes the architecture of the oil and gas
pipelines in the Black-Caspian Seas Region and analyzes the status
quo and perspectives of oil and gas production in this region. The
authors present numerous projects, each of which has made a
substantial contribution to the development of pipeline transport
and transit in this part of the world, and discuss them in detail.
The topics covered include: the region's geographic
characteristics; the region's hydrocarbon potential; Russian and EU
policy on pipeline transport; Kazakhstan's pipeline policy; Chinese
pipeline projects; the Bulgarian gas transmission system;
environmental risks in the production and transportation of
hydrocarbons; satellite monitoring; and subsea leak detection. This
volume offers a valuable resource for politicians, specialists in
the oil and gas business, decision-makers, and environmentalists
alike.
This book addresses the origin of gold deposits to answer questions
of science and curiosity. These answers contribute in turn to the
improved exploration and mining of gold. Initially there is a
summary of the methods used to address the genesis of gold deposits
including some of the essential science and concepts. Five basic
observations follow that apply to many gold deposits and need to be
considered in any genetic ideas. Magmatic processes enriching gold
are discussed followed by the role of aqueous fluids during gold
deposit formation at elevated temperatures and pressures. Modifying
effects after deposit formation include high-grade metamorphism,
retrogression, weathering, and erosion. The main types of gold
deposits are then explained within the spectrum of viable genetic
ideas, with informal names for these examples that include
gold-only, gold-plus, Carlin, slate-belt, epithermal, porphyry,
iron oxide copper gold, and Archean greenstone. Case histories are
included in which the role of gold geology contributed directly to
discoveries-one example is at the province-scale and another at the
goldfield-scale. Unlike other books on the subject, this one
addresses virtually all gold deposit types rather than focusing on
one type in isolation. The primary readership includes industry
geologists, senior undergraduates, postgraduates, and those with
some knowledge of science and an interest in the gold industry.
Reservoir Characterization of Tight Gas Sandstones: Exploration and
Development is essential reading for those working in oil and gas
exploration (both in industry and academia) as it contains chapters
that help them further understand all aspects of tight gas
reservoirs. In this book, experts in industry and academia update
readers on new methods of tight gas reservoir modeling and
evaluation. As there are very limited published books in the field
of tight sandstones, this book will benefit readers by making them
familiar with state-of-art methods of tight gas sandstones
characterization and evaluation.
This book contains contributions to the 10th International Workshop
on Bifurcation and Degradation in Geomaterials held in Hong Kong,
May 28-30, 2014. This event marks the silver Jubilee anniversary of
an international conference series dedicated to the research on
localization, instability, degradation and failure of geomaterials
since 1988 when its first workshop was organized in Germany. This
volume of book collects the latest progresses and state-of-the-art
research from top researchers around the world, and covers topics
including multiscale modeling, experimental characterization and
theoretical analysis of various instability and degradation
phenomena in geomaterials as well as their relevance to
contemporary issues in engineering practice. This book can be used
as a useful reference for research students, academics and
practicing engineers who are interested in the instability and
degradation problems in geomechanics and geotechnical engineering.
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