Carbonatite Volcanism

Carbonatite Volcanism PDF Author: Keith Bell
Publisher: Springer Science & Business Media
ISBN: 3642791824
Category : Science
Languages : en
Pages : 315

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Book Description
During the last few years, carbonatites have received a considerable amount of attention. Some of this interest was no doubt kindled by the importance of volatiles in the Earth's mantle, particularly CO , by the fact that carbonatites 2 can be used to monitor the chemical evolution of the sub-continental upper mantle, and by the fact that carbonatites may be effective metasomatizing agents at both mantle and crustal levels. The interest in Oldoinyo Lengai has extended over at least 100 years, but it was not until the eruptions of 1960, when the unique carbonatitic nature of its lavas was recognized, that the volcano took on special significance in volcanology and igneous petrology. The recognition of carbonatitic flows coin cided with the first successful laboratory experiments carried out on carbonatitic melts. Since then, Oldoinyo Lengai has formed a cornerstone in all carbonatite discussions. It is probably true to say that the findings from Oldoinyo Lengai have dominated our ideas about carbonatites, in spite of the fact that the alkali rich, natrocarbonatitic lavas of Oldoinyo Lengai are markedly different from other carbonatites.

Carbonatite Volcanism

Carbonatite Volcanism PDF Author: Keith Bell
Publisher: Springer Science & Business Media
ISBN: 3642791824
Category : Science
Languages : en
Pages : 315

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Book Description
During the last few years, carbonatites have received a considerable amount of attention. Some of this interest was no doubt kindled by the importance of volatiles in the Earth's mantle, particularly CO , by the fact that carbonatites 2 can be used to monitor the chemical evolution of the sub-continental upper mantle, and by the fact that carbonatites may be effective metasomatizing agents at both mantle and crustal levels. The interest in Oldoinyo Lengai has extended over at least 100 years, but it was not until the eruptions of 1960, when the unique carbonatitic nature of its lavas was recognized, that the volcano took on special significance in volcanology and igneous petrology. The recognition of carbonatitic flows coin cided with the first successful laboratory experiments carried out on carbonatitic melts. Since then, Oldoinyo Lengai has formed a cornerstone in all carbonatite discussions. It is probably true to say that the findings from Oldoinyo Lengai have dominated our ideas about carbonatites, in spite of the fact that the alkali rich, natrocarbonatitic lavas of Oldoinyo Lengai are markedly different from other carbonatites.

The Earth in Context

The Earth in Context PDF Author: David M. Harland
Publisher: Springer Science & Business Media
ISBN: 9781852333751
Category : Science
Languages : en
Pages : 500

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Book Description
Distinguished space historian Harland tells an inspiring tale of scientific discovery with two interwoven strands tracing the earths geological history and the Earth in relation to the solar system. 100 illustrations.

Igneous Rocks and Processes

Igneous Rocks and Processes PDF Author: Robin Gill
Publisher: John Wiley & Sons
ISBN: 1444330659
Category : Science
Languages : en
Pages : 471

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Book Description
This book is for geoscience students taking introductory or intermediate-level courses in igneous petrology, to help develop key skills (and confidence) in identifying igneous minerals, interpreting and allocating appropriate names to unknown rocks presented to them. The book thus serves, uniquely, both as a conventional course text and as a practical laboratory manual. Following an introduction reviewing igneous nomenclature, each chapter addresses a specific compositional category of magmatic rocks, covering definition, mineralogy, eruption/ emplacement processes, textures and crystallization processes, geotectonic distribution, geochemistry, and aspects of magma genesis. One chapter is devoted to phase equilibrium experiments and magma evolution; another introduces pyroclastic volcanology. Each chapter concludes with exercises, with the answers being provided at the end of the book. Appendices provide a summary of techniques and optical data for microscope mineral identification, an introduction to petrographic calculations, a glossary of petrological terms, and a list of symbols and units. The book is richly illustrated with line drawings, monochrome pictures and colour plates. Additional resources for this book can be found at: http://www.wiley.com/go/gill/igneous.

The Gregory Rift Valley and Neogene-recent Volcanoes of Northern Tanzania

The Gregory Rift Valley and Neogene-recent Volcanoes of Northern Tanzania PDF Author: John Barry Dawson
Publisher: Geological Society of London
ISBN: 9781862392670
Category : Geology, Stratigraphic
Languages : en
Pages : 116

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Book Description
The structure and volcanic activity of the northern Tanzania sector of the Gregory Rift Valley have hitherto been less well described than those in Ethiopia and Kenya. This book focuses on northern Tanzania where, although the volcanic area is smaller than those to the north, there are major features such as Kilimanjaro, the highest mountain on the African continent; Ngorongoro, one of the largest calderas on Earth; and Oldoinyo Lengai, the world's only active carbonatite volcano. Following an account of the discovery and early exploration of the rift valley, there are descriptions of the individual volcanoes. These are set within the context of the regional geology and geophysics of the rift valley, and in relation to the structural evolution of the rift and its associated sedimentary basins which include Olduvai, an important site in the history of human evolution The volume concludes with a discussion of the volcanism as related to the plume-related African Superswell.

Cenozoic Volcanism in the Tyrrhenian Sea Region

Cenozoic Volcanism in the Tyrrhenian Sea Region PDF Author: Angelo Peccerillo
Publisher: Springer
ISBN: 3319424912
Category : Science
Languages : en
Pages : 415

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Book Description
This is an updated edition of the book by the same author: "Plio-Quaternary volcanism in Italy - Petrology, geochemistry, geodynamics," published in 2005 by Springer. This edition has the same structure as the previous publication, with a general introduction; various chapters dedicated to different volcanic provinces in Italy; and a final chapter on the relationships between magmatism and geodynamics. It includes information that has become available in the last ten years, and new chapters have been added offering detailed discussions of the Oligo-Miocene orogenic volcanism on Sardinia and of some small outcrops of fragmented volcanic rocks occurring in several places of the Apennines. This new edition now covers the entire Tyrrhenian Sea magmatism of the last 40 Ma. Lastly, it includes two appendices: Appendix 1 reports on a comparison between the Tyrrhenian Sea volcanism and the partially coeval magmatism along the Alps and adjoining areas and has the objective of highlighting similarities and difference that can tell us much on geodynamics and magmatism between the converging plates of Europe and Africa. Appendix 2 is an update of the 2005 edition appendix and deals with classification of orogenic rocks with special emphasis on potassic alkaline volcanics.

Volcanism and Evolution of the African Lithosphere

Volcanism and Evolution of the African Lithosphere PDF Author: Luigi Beccaluva
Publisher: Geological Society of America
ISBN: 0813724783
Category : Science
Languages : en
Pages : 342

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Book Description


Environmental Effects on Volcanic Eruptions

Environmental Effects on Volcanic Eruptions PDF Author: James R. Zimbelman
Publisher: Springer Science & Business Media
ISBN: 1461541514
Category : Science
Languages : en
Pages : 288

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Book Description
The book presents current research into the effect that environmental conditions have on volcanic eruptions and the subsequent emplacement of volcanic products. This is accomplished through a series of chapters that investigate specific environments - both terrestrial and extraterrestrial - and the expression of volcanic materials found within those settings. Current state-of-the-art numerical, analytical and computer models are used in most chapters to provide robust, quantitative insights into how volcanoes behave in different environmental settings. Readership: Upper level undergraduates and new graduates. The book is primarily a presentation of research results rather than a tutorial for the general public. Textbook or supplementary reading for courses in volcanology or comparative planetology at college/university level.

Carbonatite-nephelinite Volcanism

Carbonatite-nephelinite Volcanism PDF Author: Michael John Le Bas
Publisher: John Wiley & Sons
ISBN:
Category : Nature
Languages : en
Pages : 412

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Book Description


Alkaline Rocks and Carbonatites of the World

Alkaline Rocks and Carbonatites of the World PDF Author: Alan Robert Woolley
Publisher: Geological Society of London
ISBN: 9781862390836
Category : Science
Languages : en
Pages : 386

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Book Description
This text describes and provides ready access to the literature for all known occurrences of alkaline igneous rocks and carbonatites of Africa. Over 1000 occurrences are described from 40 countries. The descriptions include geographical co-ordinates and information of structure, general geology, rock types, petrography, mineralogy, ages, economic aspects and principal references. There are 348 geological and distribution maps and a locality index.

Volcanoes

Volcanoes PDF Author: John P. Lockwood
Publisher: John Wiley & Sons
ISBN: 1119478855
Category : Science
Languages : en
Pages : 484

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Book Description
VOLCANOES Since the publication of the first edition of Volcanoes in 2010, our world of volcanology has changed in exciting ways. Volcanoes have continued to erupt (some 61 eruptions with VEI magnitudes greater than 3 have taken place since 2010), and in this revised and updated edition, the authors describe the largest of these, and the ones that have had the most impact on society. Volcanoes, Second Edition, contains more than 80 new photographs and figures to better illustrate volcanic features and processes, with an updated Bibliography that includes important papers describing recent eruptions and new findings. Volcanologic research is improving the foundations of knowledge upon which all our science rests, and we briefly summarize the most important of these advances and new research tools developed over the past eleven years. The most productive of these new tools are remotely operated, constantly monitoring volcanoes and their impacts on the Earth’s atmosphere from space and exploring new volcanic worlds beyond the bounds of Earth. Remotely Operated Vehicles (ROVs) are now widely available to understand better the most active volcanoes on Earth - those beneath the sea. This superlative textbook will enable students who may never see an erupting volcano to evaluate news stories about far-away eruptions, and to distinguish between overly sensational stories and factual reporting that puts facts in context. Emergency managers, land use planners, and civic officials also need to understand volcanic processes when their communities are threatened – this book will inform and guide them in their decision-making. Avoiding overly technical discussions and unnecessary use of jargon, with the important needs of civil authorities, teachers and students particularly in mind, this second edition of Volcanoes will also be of interest to general readers who are interested in these fascinating and ever-changing features of our dynamic planet.