download ebook kimberlites pdf epub

Roger H. Mitchell

This is a book about the petrology of kimberlites. It is not about upper mantle xenoliths, diamonds, or prospecting for kimberlites. The object of the book is to provide a comprehensive survey and critique of the advances which have been made in kimberlite studies over the last twenty-five years. Kimberlites are rare rock types; however, their relative obscurity is overriden by their economic and petrological importance to a degree which is not shared with the commoner varieties of igneous rocks. Kimberlites are consequently of interest to a diverse group of earth scientists, ranging from isotope g~ochemists concerned with the evolution of the mantle, to volcanologists pondering the origins of diatremes, to exploration geologists seeking new occurrences of the diamondiferous varieties. A common factor essential to all of these activities is a thorough understanding of the characteristics of kimberlites. For the petrologist, kimberlites are exciting and challenging objects for study. Their petrographic diversity, complex mineralogy and geochemistry, and unusual style of intrusion provide endless opportunities for stimulating hypothesis and conjecture concerning their origin and evolution. Kimberlites are a part of a wide spectrum of continental intra-cratonic magmatism. Only by understanding all of the parts of this activity in detail may we make progress in our understanding of the whole.

download ebook proceedings of 10th international kimberlite conference pdf epub

D Graham Pearson,Herman S Grütter,Jeff W Harris,Bruce A Kjarsgaard,Hugh O’Brien,N.V. Chalapathi Rao,Steven Sparks

International Kimberlite Conferences (IKCs) are special events that are held across the world once in four to five years. IKC is the confluence platform for academicians, scientists and industrial personnel concerned with diamond exploration and exploitation, petrology, geochemistry, geochronology, geophysics and origin of the primary diamond host rocks and their entrained xenoliths and xenocrysts (including diamond) to get together and deliberate on new advances in research made in the intervening years. Ever since the organization of first IKC in 1973 and its tremendous success, the entire geological world eagerly look forward to subsequent such conferences with great enthusiasm and excitement. The scientific emanations from IKCs continue to make significant impact on our understanding of the composition, nature and evolution of the planet we live on. The previous conferences were held at Cape Town (1973), Santa Fe, New Mexico (1977), Clermont-Ferrand, France, (1982), Perth, Western Australia (1987), Araxa, Brazil (1991), Novosibirsk, Russia (1995), Cape Town (1998), Victoria, Canada (2003) and Frankfurt, Germany (2008). The 10th IKC was held at Bangalore, India between 5th and 11th February 2012. The conference was organized by the Geological Society of India in association with the government organizations, academic institutions and Indian diamond mining companies. About 300 delegates from 36 countries attended the conference and 224 papers were presented. The papers include 78 oral presentations and 146 poster presentations on following topics: Kimberlite geology, origin, evolution and emplacement of kimberlites and related rocks, petrology and geochemistry of metasomatised lithospheric mantle magmas, diamond exploration, cratonic roots, diamonds, diamond mining and sustainable developments and policies and governance of diamond exploration. Pre- and post-conference field trips were organized to (i) the diamond bearing kimberlites of Dharwar Craton in South India, (ii) lamproites of Bundelkhand Craton in northern India and (iii) diamond cutting and polishing industry of Surat, Gujarat in western India. A series of social and cultural programmes depicting cultural diversity of India were organized during the conference. The Kimberlite fraternity enjoyed yet another socially and scientifically successful conference.

download ebook magmatism in extensional structural settings pdf epub

A.B. Kampunzu,R.T. Lubala

The African continent is unique in that it has escaped widespread orogenic activity after the Pan African orogenic event. Therefore, the African Plate provides the world's best example of the relationship between extensional magmatism and structural setting. This first complete and up-to-date review, written by leading scientists, discusses the evolutionary model and offers a new and reliable basis for scientists working on plate tectonics and extensional areas in other continents.

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Robyn Cadwallader

From Robyn Cadwallader, author of the internationally acclaimed novel The Anchoress, comes a deeply profound and moving novel of the importance of creativity and the power of connection, told through the story of the commissioning of a gorgeously decorated medieval manuscript, a Book of Hours. London, 1321: In a small shop in Paternoster Row, three people are drawn together around the creation of a magnificent book, an illuminated manuscript of prayers, a book of hours. Even though the commission seems to answer the aspirations of each one of them, their own desires and ambitions threaten its completion. As each struggles to see the book come into being, it will change everything they have understood about their place in the world. In many ways, this is a story about power - it is also a novel about the place of women in the roiling and turbulent world of the early fourteenth century; what power they have, how they wield it, and just how temporary and conditional it is. Rich, deep, sensuous and full of life, Book of Colours is also, most movingly, a profoundly beautiful story about creativity and connection, and our instinctive need to understand our world and communicate with others through the pages of a book. 'Robyn Cadwallader fashions words with the same delicate, colourful intensity that her 14th century illuminators brought to their illustrated manuscripts. Book of Colours brings alive a harsh but rich past, filled with the fantasies, fears, sly wit and tender longings of the medieval imagination.' Sarah Dunant 'Book of Colours shows the depth of possibility a book might hold - all the while shimmering with the beauty and fragility of an ancient gilded page.' Eleanor Limprecht 'Extraordinary ... a real sensory experience ... suffused with colours' ABC Radio National The Bookshelf Praise for The Anchoress: 'So beautiful, so rich, so strange, unexpected and thoughtful - also suspenseful. I loved this book.' Elizabeth Gilbert, author of Eat, Pray, Love 'Affecting ... finely drawn ... a considerable achievement.' Sarah Dunant, New York Times 'Elegant and eloquent' Irish Mail 'Cadwallader's writing evokes a heightened attention to the senses: you might never read a novel so sensuous yet unconcerned with romantic love. For this alone it is worth seeking out. But also because The Anchoress achieves what every historical novel attempts: reimagining the past while opening a new window - like a squint, perhaps - to our present lives.' Sydney Morning Herald 'A novel of page-turning grace' Newtown Review of Books

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Lucy Foley

Young photographer Kate is reeling from the recent death of her mother, an orphan who became a celebrated ballerina. Grieving and lonely, Kate's only close companion is her ailing adoptive grandmother, Evie. Then Evie reveals a terrible secret, one that prompts Kate to rediscover a family history she had thought lost forever. The story Kate discovers is one tightly interwoven with 20th-century history; from the heady days of the Roaring Twenties, through the economic crash and political tension of the '30s, to the grim reality of the war. But it is also the story of a couple deeply in love, separated by the events that supersede them and the rigid expectations of family. Moving between London, New York, Paris, Venice and Corsica, this is a story of love across borders and generations, and of what might have been.

download ebook kimberlites and their xenoliths pdf epub

J. B. Dawson

In these days of information explosion and high-cost publishing, it is perhaps only reasonable for an author to convince the reading public that it is getting something worth reading. After all, intense research into the upper mantle over the past two decades has already resulted in a number of volumes on kim berlites and their xenoliths. So why yet another one? First, in this book I have concentrated on kimberlite as an individual rock-type and a sampler of the upper mantle, in the hope of complementing such monographs as Deep seated inclusions in kimberlites and the problem of the composition of the upper mantle by N. V. Sobolev and Geologie du Diamant by M. G. Bardet, which have concentrated more on specific aspects of kimberlite and upper mantle geology; as a result I have not attempted to describe diamond prospecting and mining and, although I have attempted to give some of the up-to-date views on xenolith petrology, the confines of space have not permitted me to explore the complexities of the upper mantle as deeply as has Sobolev. Second, the literature is vast and I have tried to pull together for the reader the wide range of views and infor mation presented both in the recent geological literature and in recent multi-author volumes such as the Proceedings Vol umes of the two International Conferences on Kimberlite held at Capetown in 1973 and Santa Fe in 1977.

download ebook lamprophyres pdf epub

N. M. S. Rock

Following their recognition by GUmbel (1874), lamprophyres were treated for an entire century as little more than obscure curiosities. Although this situation has changed recently, with a flowering of publications and active workers, lamprophyres remain almost the only group of igneous rocks which have not yet received attention in a dedicated monograph. In five exploratory reviews (1977-1987), the writer aimed to set out what was known about these rocks. The lUGS Subcommission on igneous rock systematics had meanwhile presented its nomenclatural framework (Streckeisen 1979). All this has now been overtaken by a recent explosion of interest, epitomized not least by lamprophyres' greater prominence in the 4th International Kimberlite Conference Proceedings. More data have become available since 1985 than over the entire previous century, and it is obviously impossible for such an extraordinary outpouring to be fully reviewed in this first, preliminary book. At the risk of dissatisfying some readers, therefore, this book concentrates on factual matters, and on a broad overview rather than minutiae. Because not even a world map of known lamprophyres was previously available, almost half the book is deliberately taken up by the first global lamprophyre compilation, and its commensurately extensive Bibliography. Such a compendium of largely objective information is believed to be of more immediate interest and lasting value than a premature pottage of petrogenetic polemic. Chapters 1-7 bring previous studies up to date, and concentrate on factual information.

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Joanna Goodman

Philomena meets Orphan Train in this suspenseful, provocative novel filled with love, secrets, and deceit—the story of a young unwed mother who is forcibly separated from her daughter at birth and the lengths to which they go to find each other. In 1950s Quebec, French and English tolerate each other with precarious civility—much like Maggie Hughes’ parents. Maggie’s English-speaking father has ambitions for his daughter that don’t include marriage to the poor French boy on the next farm over. But Maggie’s heart is captured by Gabriel Phénix. When she becomes pregnant at fifteen, her parents force her to give baby Elodie up for adoption and get her life ‘back on track’. Elodie is raised in Quebec’s impoverished orphanage system. It’s a precarious enough existence that takes a tragic turn when Elodie, along with thousands of other orphans in Quebec, is declared mentally ill as the result of a new law that provides more funding to psychiatric hospitals than to orphanages. Bright and determined, Elodie withstands abysmal treatment at the nuns’ hands, finally earning her freedom at seventeen, when she is thrust into an alien, often unnerving world. Maggie, married to a businessman eager to start a family, cannot forget the daughter she was forced to abandon, and a chance reconnection with Gabriel spurs a wrenching choice. As time passes, the stories of Maggie and Elodie intertwine but never touch, until Maggie realizes she must take what she wants from life and go in search of her long-lost daughter, finally reclaiming the truth that has been denied them both.

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Lois Walfrid Johnson

In one harrowing day, Viking raiders capture Bree and her brother Devin and take them from their home in Ireland. After the young Viking prince Mikkel sets Devin free on the Irish coast far from home, Bree and Devin embark on separate journeys to courage. Readers will be captivated by the unfolding drama as Bree sails to Norway on the Viking ship and Devin travels the dangerous road home. They both must trust their all-powerful God in the midst of difficult situations.

download ebook petroleum engineering: principles, calculations, and workflows pdf epub

Moshood Sanni

A comprehensive and practical guide to methods for solving complex petroleum engineering problems Petroleum engineering is guided by overarching scientific and mathematical principles, but there is sometimes a gap between theoretical knowledge and practical application. Petroleum Engineering: Principles, Calculations, and Workflows presents methods for solving a wide range of real-world petroleum engineering problems. Each chapter deals with a specific issue, and includes formulae that help explain primary principles of the problem before providing an easy to follow, practical application. Volume highlights include: A robust, integrated approach to solving inverse problems In-depth exploration of workflows with model and parameter validation Simple approaches to solving complex mathematical problems Complex calculations that can be easily implemented with simple methods Overview of key approaches required for software and application development Formulae and model guidance for diagnosis, initial modeling of parameters, and simulation and regression Petroleum Engineering: Principles, Calculations, and Workflows is a valuable and practical resource to a wide community of geoscientists, earth scientists, exploration geologists, and engineers. This accessible guide is also well-suited for graduate and postgraduate students, consultants, software developers, and professionals as an authoritative reference for day-to-day petroleum engineering problem solving.

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Jasper Barry

Nineteen year-old Max is the duchesse de Claireville's second footman, but he does not intend to endure the indignities of service for long. He has a plan—to find an aristocratic patron who will become his unwitting accomplice in an audacious fraud.

download ebook gemmological instruments pdf epub

Peter G Read

Gemmological Instruments deals with the developments in diamond grading equipment and gem testing instruments since the publication of the first edition in 1978. These developments include improvements in the versatility and styling of existing instruments such as the reflectivity meter, the composite spectroscope, and the refractometer. It also addresses the criticisms in the first edition and provides a discussion of the advantages and disadvantages of different gem testing equipment. This book is organized into 16 chapters that describe groundbreaking instruments like the thermal conductivity diamond testers and home-constructed items that while innovative have not yet been commercialized. There are also chapters dealing with microphotography and identification of synthetics and stimulants. This book also provides a listing of gemstone constants and characteristic inclusions in natural and synthetic gemstones. This book will be of interest to people interested in equipment for gem testing and diamond grading.

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Alex Beecroft

1762, The Georgian Age of Sail: For his first command, John Cavendish is given a ship—the HMS Meteor—and a crew, both in need of repair and discipline. He's determined to make a success of their first mission, and hopes the well-liked lieutenant Alfred Donwell will stand by his side as he leads his new crew into battle: stopping the slave trade off the coast of Algiers. Alfie knows their mission is futile, and that their superiors back in England will use the demise of this crew as impetus for war with the Ottoman Empire. But the darker secret he keeps is his growing attraction for his commanding officer—a secret punishable by death. With the arrival of his former captain—and lover—on the scene of the disastrous mission, Alfie is torn between the security of his past and the uncertain promise of a future with the straight-laced John. Against a backdrop of war, intrigue, and personal betrayal, the high seas will carry these men through dangerous waters from England to Africa to the West Indies in search of a safe harbor.

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Arthur J. Lyon

Dealing with Data is an introductory course to problems and techniques dealing with data analysis, with emphasis on the physical and engineering sciences. The book starts with the basics of data analysis through non-statistical and non-mathematical assessments of error and uncertainty conditions. Experimental and maximum errors and the use of simple graphical methods are briefly described. Applying quick methods on data analysis such as frequency distributions, determination of standard errors, and applications of significance tests are explained. Special attention is given to the statistical quick methods where the range is preferred to traditional methods of calculation. The author notes that the quick methods have more practical applications in physics and engineering. The use of the quick methods of calculation is more precise in error estimation, confidence limits, and tests for outliers that the error is very negligible when applied to actual conditions. Dealing with errors of computation arising from rounding of values, and those arising from the use of slide rules and of the logarithm tables, is explained. The use of numerical methods (integration, differentiation, and interpolation) and graphical methods (like curve fitting) is briefly explained, with the author's emphasis on choosing the simpler methods. Sixth formers, engineering undergraduates, statisticians, and students of mathematics will find the information in this book useful.

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B. Anderson

This unusual work is a complete treatise on the identification of precious stones that is thoroughly recommended for inclusion on the jeweller or antiquarian's bookshelf. Contents Include: Preface; How to Use The Book; Refractive Index and its Measurement; Double Refraction and How to Detect it; Colour, Colour Filters and the Dichroscope; Specific Gravity and How to Measure It; Detection of Synthetic and Imitation Stones; The Use of the Microscope; The Identification of Diamond; The Identification of Ruby; The Identification of Sapphire; The Identification of Emerald; Aquamarine and Alexandrite; The Identification of Zircon; The Identification of Topaz; The Identification of Pink, Mauve, etc. Stones; The Identification of Brown and Orange Stones; Quartz, Opal, and Garnets; Tourmaline, Peridot, and Spinel; Identification of Translucent and Opaque Stones; Amber, Tortoiseshell, Coral, and Jet; Pearls: Real, Cultured, and Imitation; Appendix: Glossary, Alphabetical Summary of Gem Species, Crystal Systems, Bibliography, Specific Gravity and Refractive Index Tables; Names and Addresses of Recommended Suppliers; and an Index. Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.

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Kim Stanley Robinson

Kim Stanley Robinson, the New York Times bestselling author of science fiction masterworks such as the Mars trilogy and 2312, has, on many occasions, imagined our future. Now, in SHAMAN, he brings our past to life as never before. There is Thorn, a shaman himself. He lives to pass down his wisdom and his stories -- to teach those who would follow in his footsteps. There is Heather, the healer who, in many ways, holds the clan together. There is Elga, an outsider and the bringer of change. And then there is Loon, the next shaman, who is determined to find his own path. But in a world so treacherous, that journey is never simple -- and where it may lead is never certain. SHAMAN is a powerful, thrilling and heartbreaking story of one young man's journey into adulthood -- and an awe-inspiring vision of how we lived thirty thousand years ago.

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Alain Meunier

Here is a comprehensive and up to-do-date presentation of the origins, and properties of clay minerals at the Earth ́s surface. The text reviews the relatively simple laws that govern the chemical or isotopic composition and the crystalline structure of clays, and then discusses their genesis and alteration. Concluding chapters show that clay minerals can form in variety of different environments: meteorites, lavas, subduction zones, among others.

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Guy Gavriel Kay

Inspired by the glory of Tang Dynasty China in the eighth century, Guy Gavriel Kay melds history and the fantastic into something both powerful and emotionally compelling. Under Heaven is a novel on the grandest narrative scale, encompassing the intimate details of individual lives in an unforgettable time and place. Shen Tai is the son of a general who led the forces of imperial Kitai in that empire's last war against their western enemies from Tagur, twenty years before. Forty thousand men on both sides were slain beside a remote mountain lake. General Shen Gao himself has died recently. To honour his father's memory, Tai has spent two years of official mourning alone at the battle site among the ghosts of the dead, laying to rest their unburied bones. One spring morning, he learns that others have taken note of his vigil. The White Jade Princess in Tagur is pleased to present him with two hundred and fifty Sardian horses, given, she writes, in recognition of his courage, and honour done to the dead. You gave a man one of the famed Sardians to reward him greatly. You gave him four or five to exalt him above his fellows, and earn him jealousy, possibly mortal. Two hundred and fifty is an unthinkable gift, a gift to overwhelm an emperor. Tai starts east towards the glittering, dangerous imperial capital and gathers his wits for a return from solitude by a mountain lake to his own forever-altered life.