Der Historiograph al-Maqrizi (15. Jh.) befasst sich in seinem kurzen Traktat mit den Mineralien, ihrer Klassifikation, ihren medizinischen Anwendungen sowie Theorien uber ihre Entstehung. Kas legt hier erstmals eine kritische Textedition mit deutscher UEbersetzung und ausfuhrlichem Kommentar vor. The 15th century historiographer al-Maqrizi deals in his short treatise with minerals, their classification, medicinal uses and theories of their coming into being. Kas presents for the first time a critical edition of this text along with a German translation and a detailed commentary.

This book is mainly about the field geology of granites at all scales from that of a single outcrop to plutons and batholiths. All field geologists work initially at the scale of the outcrop, consequently most of the phenomena treated herein are those which are visible at outcrop scale. However, granites typically occur as plutons and batholiths, some of which are so large as to apparently defy any effort at systematic treatment. Having had the opportunity of mapping two very large and very different batholiths, namely the Coastal Batholith of Peru and the tin granites of Southeast Asia, I have found that it is possible to map large batholiths within a relatively short time, so that the geology of the batholith as a whole can be appreciated. Moreover batholiths are one of the most common modes of granite occurrence, so it makes sense to study them at their natural scale. During my working life I have worked with many geologists from underdevel oped countries and this book is mainly to help them in unravelling the geology of their native batholiths. I have been lucky with my friends and colleagues of many nationalities, and I particularly thank Wallace Pitcher, who took me on as an untried apprentice in Peru, and who, by his kindness and example, showed me how to look at granites properly.

This book focuses on the experimental determination of the physical properties of silicate melts and magmas close to glass transition. Abundant new data are presented. The same type of measurement is performed on a range of melts to test the effect of composition on physical properties; and a range of different techniques are used to determine the same physical properties to illustrate the relationships between the relaxation of the melt structure and the relaxation of its physical properties. This book is of interest to experimental researchers in the discussion of data obtained from both a materials science and a geoscientific point of view.

Entdecken Sie ein Wunder der Natur eigentlich altbekannt und doch immer noch voller Ratsel. Wissenschaftler aus den verschiedensten Fachbereichen fuhren Sie auf eine faszinierende Zeitreise durch die Wissenschaftsgeschichte. Am Beispiel des Naturwunders "Diamant" wird der Fortschritt der menschlichen Erkenntnis uber die Jahrhunderte hinweg eindrucksvoll deutlich - von den legendenumwobenen Anfangen und nebulosen Vorstellungen bis hin zur modernen wissenschaftlichen Analytik."

30% discount for members of The Mineralogical Society of Britain and Ireland

Rare Earth Minerals presents a current overview of this geologically and industrially important group of minerals. It presents a wide variety of formats, crystal structures, petrographic descriptions, analytical data and numerous illustrations from outcrop photos to SEM pictures and crystallographic models.

30% discount for members of The Mineralogical Society of Britain and Ireland

This text summarises the state-of-the-art in the study of mineral surfaces and some of the key applications of surface science in mineralogy and mineral chemistry. Each chapter covers a particular aspect of the subject and is written by an expert who raises the key issues involved for those requiring an introduction to the subject, whilst highlighting most recent developments. Advanced undergraduates, postgraduates and researchers alike will find this essential reading as it is the first book to review the fast developing field of mineral surfaces.

This text describes the theory and practice of optical mineralogy in terms useful to all practitioners from the beginning student to the professional in field and laboratory geology and industrial and environmental mineralogy. The author's aim is to provide the simplest possible access to the most powerful techniques of optical crystal identification. The book emphasizes useful practical theoretical material and methods for studying both thin sections of rocks and immersion of mineral grains in refractive index liquids. It contains original research results found in no other text. A major goal of the text is to allow precise determination of refractive index and the essential composition of crystals belonging to important mineral groups such as olivine, feldspar, and pyroxene. New methods for achieving this are developed for both white light and colored light of variable wavelength. Among the book's unique features is the color fringe chart developed by Prof. Morse for estimating both the direction and degree of mismatch between the refraction index of a crystal and that of the surrounding liquid medium in the immersion method. Further, a new algebraic treatment of the dispersion method allows a high precision of match between crystal and liquid. An original classification of interference figures aids crystal identification. Worked examples of refractive index determination and crystal identification are given for each optical class of crystals. The optic orientation of optically biaxial crystals is illustrated with examples from each crystal system portrayed in stereographic projection. Principles and applications of crystal identification with the dispersion method are developed in aseparate chapter. The final chapter is a practical, step-by-step guide to crystal identification in thin section or immersion. An identification table for the most common asbestos minerals, including the dispersion staining method used by most environmental laboratories.

With an approach that stresses the fundamental solid state behaviour of minerals, and with emphasis on both theory and experiment, this text surveys the physics and chemistry of earth materials. It starts with a systematic tour of crystal chemistry of both simple and complex structures (with completely new structural drawings) and discusses how structural and thermodynamic information is obtained experimentally. The quantitative concepts of chemical bonding band theory, molecular orbit and ionic models are reviewed. The book goes on to discuss physical properties and to relate microscopic features to macroscopic thermodynamic behaviour. The book then discusses high pressure phase transitions, amorphous materials and solid state reactions, and concludes with a look at the interface between mineral physics and materials science. Highly illustrated throughout, this book is designed to fill the gap between undergraduate texts and specialized review volumes, for students in earth sciences and materials science.

This book is the first systematic treatise of available data and view-points obtained from geological and geochemical studies of the Mo deposits in Qinling Orogen, China. Qinling Orogen has a minimum reserve of 8.7 Mt Mo, ranking the largest molybdenum province both in China and the world. Incorporating all known Mo deposit types in the world, it presents extensive studies of Mo deposits of world-class and unusual types within tectonic settings. The Qinling Orogen was finally formed during continental collision between Yangtze and North China cratons, following the Triassic closure of the northernmost paleo-Tethys. It hosts 49 Mo deposits formed in seven mineralization events since 1850 Ma, with all the world-class deposits being formed during 160-105 Ma, coeval with collisional orogeny. These deposits are assigned to magmatic and metamorphic hydrothermal classes. The magmatic hydrothermal class includes porphyries, skarns, and intrusion-related veins (carbonatite, fluorite and quartz). The porphyry Mo systems in Qinling Orogen are predominated by Dabie-type formed in continental collision setting, followed by Endako- and Climax-types formed in continental arcs and rifts, respectively. The metamorphic hydrothermal Mo deposits are only reported in Qinling Orogen, and thus a new crustal continuum model for the orogenic class mineral systems is proposed. A scientific linkage between ore geology and fluid inclusions is introduced and verified both by theory and case studies. This is the first research book comprehensively displaying continental collision metallogeny. This literature will benefit both Western and Chinese mineral explorers and miners, as well as research scientists and students.

This work is based on the observation that further major advances in geochemistry, particularly in understanding the rules that govern the ways in which elements come together to form minerals and rocks, will require the application of the theories of quantum mechanics. The book therefore outlines this theoretical background and discusses the models used to describe bonding in geochemical systems. It is the first book to describe and critically review the application of quantum mechanical theories to minerals and geochemical systems. The book consolidates valuable findings from chemistry and materials science as well as mineralogy and geochemistry, and the presentation has relevance to professionals in a wide range of disciplines. Experimental techniques are surveyed, but the emphasis is on applying theoretical tools to various groups of minerals: the oxides, silicates, carbonates, borates, and sulfides. Other topics dealt with in depth include structure, stereochemistry, bond strengths and stabilities of minerals, various physical properties, and the overall geochemical distribution of the elements.

Introduction to Clay Minerals is designed to give a detailed, concise and clear introduction to clay mineralogy. Using the information presented here, one should be able to understand clays and their mineralogy, their uses and importance in modern life.

The object of this book is to explain how to create a synthesis of complex biostratigraphic data, and how to extract from such a syn thesis a relative time scale based exclusively on the fossil content of sedimentary rocks. Such a time scale can be used to attribute relative ages to isolated fossil-bearing samples. From a practical point of view, the method described in this book will particularly interest paleontologists and geologists who must construct zonations and establish correlations on the basis of bio stratigraphic data that are both plentiful and apparently contra dictory. It is well known that the difficulties involved in constructing bio chronologic scales are largely due to the discontinuous nature of the fossil record. We know that the relationships between the first ap pearances (or disappearances) of different fossil species are rarely constant in stratigraphic sections that are distant from each other. It if often extremely difficult to discover datums or sets of species that are useful in making significant biochronologic correlations on a large scale. The theoretical model explained here (known as the Unitary As sociation Method) provides clear solutions to most of these problems. That method is purely deterministic, as opposed to statistical and probabilistic analytical techniques producing "average" ranges. We demonstrate in Chapter 15 why most of these techniques produce results which are usually not compatible with the original biostrati graphic observations (i.e., the taxonomic contents of the studied sam ples are not reproduced in the outputs).

The application of thermal analysis is outlined by 18 contributions, writtenby experts in the various fields of geosciences. Emphasis was laid on the determination of minerals and technical products, kinetic parameters and calorific values in glass and ceramics technology, characterization of raw materials (e.g. clays, industrial minerals), in quality control and performance assessment, but also in environment protection from soil and water pollution, using re-evaluated existing and new data and improved combined modern methods. This book is addressed to practitioners, scientistsand students in mineralogy/crystallography, applied geology, material sciences, and environmental sciences.

Thermodynamic treatment of mineral equilibria, a topic central to mineralogical thermodynamics, can be traced back to the tum of the century, when J. H. Van't Hoff and his associates pioneered in applying thermodynamics to the mineral assemblages observed in the Stassfurt salt deposit. Although other renowned researchers joined forces to develop the subject - H. E. Boeke even tried to popularize it by giving an overview of the early developments in his "Grundlagen der physikalisch-chemischen Petrographie," Berlin, 1915 - it remained, on the whole, an esoteric subject for the majority of the contemporary geological community. Seen that way, mineralogical thermodynamics came of age during the last four decades, and evolved very rapidly into a mainstream discipline of geochemistry. It has contributed enormously to our understanding of the phase equilibria of mineral systems, and has helped put mineralogy and petrology on a firm quantitative basis. In the wake of these developments, academic curricula now require the students of geology to take a course in basic thermodynamics, traditionally offered by the departments of chemistry. Building on that foundation, a supplementary course is generally offered to familiarize the students with diverse mineralogical applications of thermo dynamics. This book draws from the author's experience in giving such a course, and has been tailored to cater to those who have had a previous exposure to the basic concepts of chemical thermodynamics."

For future studies of oceanic circulation it is necessary to develop the tritium measurement via 3He ingrowth into a routine procedure with a high capacity for efficient use. This paper attempts to demonstrate that this can be achieved using a commercial helium isotope mass spectrometer and special procedures for sample preparation, storage for 3He ingrowth, and 3He transfer from the ingrowth containers into the mass spectrometer. This method allows for measurement with a much higher precision and lower detection limit than is possible with counting techniques. Additionally, the parameters and blanks in routine operation of the system are discussed.

Rutley's elements of mineralogy has been around for a long time, certainly throughout my own lifetime; and if my great grandfather had read geology, it would have been prescribed reading for him too It has been rewritten and revised frequently since fir t conceived by Frank Rutley in the late 19th century. Major revisions occurred in 1902, and then in 1914, when H. H. Read first took over the authorship, and thereafter in 1936 and in 1965 when the last major changes occurred. It was with some trepidation that I agreed to attempt this revision. I had been asked to do it by Janet Watson in 1979, but various commitments delayed my start on it until 1984. This 27th edition encompasses a number of changes. Chapters 1-5 have the same headings as before, but considerable changes have been made in all of them, particularly 1, 3, 4 and 5. Comments sought prior to the revision revealed considerable disagreement about the role of blowpipe analyses in the book. I have only once had blowpipe analyses demon strated to me, and have never used them; but there is no doubt that they are employed in many countries, and many of the tests (flame colour, bead, etc. ) are still useful as rapid indicators of which element is present in a mineral. I have therefore kept blowpipe analysis information in Rutley, but have relegated it to an appendix."

The past decade has seen remarkable growth in research related to petroleum reseIVoir simulation. This growth reflects several developments, not the least of which is the increased interest in oil recovery technologies requiring sophisticated engineer ing. Augmenting this interest has been the broader availability of supercomputers capable of handling the tremendous computational demands of a typical reseIVoir simulator. The field of reseIVoir simulation incorporates several major facets of applied mathematics. First, in view of the varieyt and complexity of the processes encoun tered, it is imperative that the modeler adopt a systematic approach to establishing the equations governing reseIVoir flows. Second, the mathematical structure of these flow equations needs to be carefully analyzed in order to develop appropriate and efficient numerical methods for their solution. Third, since some aspects of the discretized flow equations are typically stiff, one must develop efficient schemes for solving large sparse systems of linear equations. This monograph has three parts, each devoted to one of these three aspects of reseIVoir modeling. The text grew out of a set of lectures presented by the authors in the autumn of 1986 at the IBM Scientific Center in Bergen, Norway. We feel that it is only appropriate to caution the reader that many of the ideas that we present in this monograph do not reflect standard approaches in petroleum reseIVoir simulation. In fact, our aim is to outline promising new ways of attacking reseIVoir simulation prob lems, rather than to compile another textbook for the mainstream."

"International Mineral Economics" provides an integrated overview of the concepts important for mineral exploration, mine valuation, mineral market analysis, and international mineral policies. The treatment is interdisciplinary, drawing on the fields of economics, geology, business, and mining engineering. Part I, Economic Geology and Mineral Development, examines the "technical" concepts important for understanding the geology of ore deposits, the methods of exploration and deposit evaluation, and the activities of mining and mineral processing. Part II, Mineral Economics, focuses on the "economic" and related concepts important for understanding mineral development, the evaluation of exploration and mining projects, and mineral markets and market models. Finally, Part III, International Mineral Policies, reviews and traces the historical development of the policies of international organizations, the industrialized countries, and the developing countries.

The book deals with natural climate variations during the last 600,000 years. Among the topics astronomical influence on paleoclimates, climate and environment, natural CO2-variants based on investigations of ice curves and climatic information from wood density are the most important. This long and short term variability is the base for modelling and prediction of anthropogenically induced climatic changes.

Within the last decade or so, the accelerated growth of Nigeria in the fields of urbanisation, population, business as well as industry has led to some attention in assessment of available water resources in various parts of the country. Many workers (du Preez and Barber, 1965; Jackson, 1978; Faniran and Omorinbola, 1980; Ofodile, 1983; Egboka, 1983; Akujieze, 1984; Ogbukagu, 1984; Uma, 1984) have made significant contributions in this area. Water is important because the attainment of the goals of any society as well as the health and well-being of the population depends on a plentiful and reliable supply of this natural resource. Water forms an indispensable input into economic activities such as commerce, tourism and industry. The results of the various researches have revealed that water resources (surface and groundwater) in many parts of the country, especially the southern part, are more than adequate to meet any demand and only need development. A complete appraisal of available water resources is often best accomplished when aspects of water quality are included. This is because in a planned water supply system, quality constraints and requirements dictate the sources of water allocated to various stages. A public water supply, though contributing greatly to the human health and well-being, can also be a vehicle for spreading disease if not properly handled. In this paper, water quality of selected water resources (surface and groundwater) in some parts of Imo State, Nigeria are reported and suggestions advanced for their healthy untilization.

Characteristic examples of evaporite basins, mostly of moderate size, are discussed in terms of type (playas, continental sabkhas, barred basins), deposits, fossils, relics and pseudomorphs of gypsum found, and complex of diagenesis, e.g. in the Red Sea Miocene where reef complexes predate the deposition of massive evaporites. Two models, the sabkha model and the deep desiccation basin model, are both employed to explain the formation of "evaporite basins." In many cases both models must be combined as many evaporites were formed in subaqueous environments.

This sourcebook to the prodigious literature on applications of computers and statistics to geology contains over 2000 references. The glossary provides succinct explanations of most statistical and mathematical terms. Computer topics include hardware, software, programming languages, databases, and communications graphics, CAO/CAM, CAI, GIS and expert systems. Statistical topics range from elementary properties of numbers through univariate, bivariate to multivariate methods. The brief notes on each method provide a general guide to what the technique does, and are illustrated with worked examples from a wide range of geological disciplines. Students and researchers will find the book useful in coping with the explosion of information which has taken place in geology, and to make the best possible use of computers in interpreting acquired data.

This book reports new developments in research on the Zechstein basin which is one of the classical saline giants. Recently much information was gathered which changes earlier ideas on the deposition and diagenesis of the Zechstein basin.

Discusses the global evolution of the earth, such as core- mantle separation, mantle-crust evolution, origin of ocean- atmosphere system, on the basis of isotope earth science and paleomagnetism, where recent devlopment in planetology and astrophysical theories are extensively taken into account.