Download or read book Timescales of the Paleomagnetic Field written by J. Channell and published by American Geophysical Union. This book was released on 2004-01-09 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientists and researchers in geomagnetism and paleomagnetism, marine geology and geophysics, stratigraphy and timescale construction, and planetology will find this work an important resource in our evolving view of Earth's magnetic field.
Download or read book Essentials of Paleomagnetism written by Lisa Tauxe and published by Univ of California Press. This book was released on 2010-03-19 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book by Lisa Tauxe and others is a marvelous tool for education and research in Paleomagnetism. Many students in the U.S. and around the world will welcome this publication, which was previously only available via the Internet. Professor Tauxe has performed a service for teaching and research that is utterly unique."—Neil D. Opdyke, University of Florida
Download or read book Encyclopedia of Geomagnetism and Paleomagnetism written by David Gubbins and published by Springer Science & Business Media. This book was released on 2007-07-19 with total page 1061 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference encompasses the fields of Geomagnetism and Paleomagnetism in a single volume. Both sciences have applications in navigation, in the search for minerals and hydrocarbons, in dating rock sequences, and in unraveling past geologic movements such as plate motions they have contributed to a better understanding of the Earth. The book describes in fine detail the current state of knowledge and provides an up-to-date synthesis of the most basic concepts. It is an indispensable working tool not only for geophysicists and geophysics students but also for geologists, physicists, atmospheric and environmental scientists, and engineers.
Download or read book Paleomagnetic Principles and Practice written by L. Tauxe and published by Springer Science & Business Media. This book was released on 2005-12-17 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paleomagnetic data are useful in many applications in Earth Science from determining paleocurrent directions to analyzing the long-term behavior of the geomagnetic field. In this book, an attempt has been made to draw together the various principles and practices within paleomagnetism in a consistent and up-to-date manner. It includes many practical examples that illustrate various applications of paleomagnetism. A companion software package implements the theory explained in the text. Audience: This volume is aimed at professional Earth Scientists using paleomagnetic data for their research. It is also suitable for use as a text book for students in courses with a paleomagnetic content. In addition, this volume will be of value to other professionals with an interest in the analysis of vector and tensor data in general.
Download or read book The time averaged paleomagnetic field 0 5 Ma written by M.W. McElhinny and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of the Time averaged Paleomagnetic Field for the Last 195 Million Years written by Sun-Hee Lee and published by . This book was released on 1983 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Magnetic Stratigraphy written by Meil D. Opdyke and published by Academic Press. This book was released on 1996-11-19 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic Stratigraphy is the most comprehensive book written in the English language on the subject of magnetic polarity stratigraphy and time scales. This volume presents the entirety of the known geomagneticrecord, which now extends back about 300 million years. The book includes the results of current research on sea floor spreading, magnetic stratigraphy of the Pliocene and Pleistocene, and postulations on the Paleozoic. Also included are both historicalbackground and applications of magnetostratigraphy. Individual chapters on correlation are presented, using changes in magnetic properties and secular variation.Key Features* Discusses pioneering work in the use of marine sediments to investigate the Earths magnetic field* Serves as a guide for students wishing to begin studies in magnetostratigraphy* Provides a comprehensive guide to magnetic polarity stratigraphy including up-to-date geomagnetic polarity time scales* Correlates magnetic stratigraphics from marine and non-marine Cenozoic sequences* Details reversal history of the magnetic field for the last 350 million years* Discusses correlation using magnetic dipole intensity changes* Up-to-date correlation of biostratigraphy with magnetic stratigraphy through the late Jurassic
Download or read book Reversals of the Earth s Magnetic Field written by J. A. Jacobs and published by Cambridge University Press. This book was released on 1994-11-24 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 1994 book examines how reversals of the Earth's magnetic field have played a major role in establishing plate tectonics and a geological time scale.
Download or read book Testing for Hemispheric Variability in the Earth s Magnetic Field Over Geologic Timescales written by Geoffrey John Deustua Cromwell and published by . This book was released on 2014 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Earth's magnetic field is generally assumed to approximate a geocentric axial dipole (GAD) field when averaged over sufficient time (105-106 yrs). In a GAD field, magnetic declination is zero at every point on the Earth's surface while magnetic inclination and intensity vary predictably with latitude. Departures from GAD are observed in the present field and in paleomagnetic measurements over historical and archaeological timescales. Early compilations of paleodirectional and paleointensity data for the last few million years support the GAD hypothesis with only minor deviations. Most paleomagnetic data are from mid-latitudes in the northern hemisphere, producing a geographic sampling bias that is not accounted for in existing paleomagnetic compilations and geomagnetic field models. Until recently there has not been sufficient global coverage of high-quality paleomagnetic data to adequately evaluate latitudinal field structures across the globe. In this dissertation we add new high-quality paleomagnetic sites from the Arctic and document data quality issues that have affected the development of paleosecular variation (PSV) and time-averaged field (TAF) models. We compare our new Arctic directional results to the existing Antarctic data and a new global compilation of published directional sites. We observe a greater variance of paleodirections in the southern hemisphere, especially at high latitudes, relative to northern hemisphere sites and find that time-averaged geomagnetic field models with a small axial-quadrupole (g0/2) component fit the global data set better than GAD models. Accurate paleointensity estimates of the ancient and modern field are difficult to obtain, but we show that historic Hawaiian volcanic glasses can reliably recover the expected field strength when using appropriate statistical controls. We use this methodology to acquire paleointensity data from Iceland for the last 780 ka, which are consistent with long-term estimates of geomagnetic field strength. Our analysis of high-quality paleodirectional data from the global data set and accurate paleointensity results from the Arctic suggest different geomagnetic field structures between northern and southern hemispheres which are not yet predicted by existing field models.
Download or read book The Magnetic Field of the Earth written by Ronald T. Merrill and published by Academic Press. This book was released on 1998 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics involved in studies of the Earth's magnetic field and its secular variation range from the intricate observations of geomagnetism, to worldwide studies of archeomagnetism and paleomagnetism, through to the complex mathematics of dynamo theory. Traditionally these different aspects of geomagnetism have in the main been studied and presented in isolation from each other. This text draws together these lines of inquiry into an integrated framework to highlight the interrelationships and thus to provide a more comprehensive understanding of the geomagnetic field.
Download or read book Paleomagnetic Evidence for Timescales of Multi vent Basaltic Eruptions in Big Pine Volcanic Field California written by Alana Zohar and published by . This book was released on 2009 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Earth s Magnetic Field Its History Origin and Planetary Perspective written by McElhinny and published by Academic Press. This book was released on 1984-01-04 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Earth's Magnetic Field : Its History, Origin, and Planetary Perspective
Download or read book Paleomagnetic Investigations of Deep Time Evolution and Dynamics of the Core Mantle and Life written by Richard K. Bono and published by . This book was released on 2016 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Study of the nature and evolution of Earth's interior is a critical aspect to understanding how life has flourished on Earth. Paleomagnetism, the study of the history of Earth's magnetic field, provides a powerful set of tools to gain insight into the past development of Earth's interior. The geomagnetic field acts as a buffer against solar wind, protecting Earth's atmosphere from being stripped away by charged particles, and ultimately allowing for liquid water to be preserved on the surface. The paleomagnetic record allows for investigation into the thermal evolution of Earth's core and heat transport through the mantle over geologic time. This thesis presents the results of several studies through deep time, linking surface records of the magnetic field to activity and evolution in Earth's interior. Many of the results have implications, directly or indirectly, for the development/evolution of life on the planet..."--Pages viii-xiii.
Download or read book Paleomagnetism written by Michael W. McElhinny and published by Elsevier. This book was released on 1999-10-18 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paleomagnetism is the study of the fossil magnetism in rocks. It has been paramount in determining that the continents have drifted over the surface of the Earth throughout geological time. The fossil magnetism preserved in the ocean floor has demonstrated how continental drift takes place through the process of sea-floor spreading. The methods and techniques used in paleomagnetic studies of continental rocks and of the ocean floor are described and then applied to determining horizontal movements of the Earth's crust over geological time. An up-to-date review of global paleomagnetic data enables 1000 million years of Earth history to be summarized in terms of the drift of the major crustal blocks over the surface of the Earth. The first edition of McElhinny's book was heralded as a "classic and definitive text." It thoroughly discussed the theory of geomagnetism, the geologic reversals of the Earth's magnetic field, and the shifting of magnetic poles. In the 25 years since the highly successful first edition of Palaeomagnetism and Plate Tectonics (Cambridge, 1973) the many advances in the concepts, methodology, and insights into paleomagnetism warrant this new treatment. This completely updated and revised edition of Paleomagnetism: Continents and Oceans will be a welcome resource for a broad audience of earth scientists as well as laypeople curious about magnetism, paleogeography, geology, and plate tectonics. Because the book is intended for a wide audience of geologists, geophysicists, and oceanographers, it balances the mathematical and descriptive aspects of each topic. - Details the theory and methodology of rock magnetism, with particular emphasis on intrepreting crustal movements from continental and oceanic measurements - Outlines Earth history for the past 1000 million years, from the Rodinia super-continent through its breakup and the formation of Gondwana to the formation and breakup of Pangea and the amalgamation of Eurasia - Provides a comprehensive treatment of oceanic paleomagnetism - Provides a set of color pateogeographic maps covering the past 250 million years - Written by two internationally recognized experts in the field
Download or read book Geomagnetic Field Variations in the Past written by E. Tema and published by Geological Society of London. This book was released on 2020-10-15 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decades, palaeomagnetic research has provided important information about the past variation of the Earth’s magnetic field (EMF) from its origin to the present day. However, questions regarding the origin and evolution of the EMF as well as the frequency and spatial distribution of its variations still remain open to debate. This Special Publication provides new insights into the study of the temporal and spatial evolution of the EMF presenting new data from palaeomagnetic and rock magnetic studies of archaeological materials, sediments and lavas. The papers presented cover a wide range of topics related to archaeology, stratigraphy and climate, including new data from several parts of the world, such as Europe, Africa, Australia, New Zealand, India and the Baltic Sea. This Special Publication aims to present an overview of the most recent secular variation studies and their use to disclose fundamental properties of the EMF evolution.
Download or read book Palaeomagnetism and the Continental Crust written by J. D. A. Piper and published by . This book was released on 1987-07-21 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive introduction to palaeomagnetism offering a comprehensive treatment of theory and practice. Written in a clear and concise style that will be understandable to undergraduate students and researchers alike, it analyzes the palaeomagnetic record over the whole of geological time, from the Archaean to the Cenozoic, and goes on to examine the impact of past geometries and movements of the continental crust at each geological stage. Topics covered include theory of rock and mineral magnetism, field and laboratory methods, growth and consolidation of the continental crust in Archaean and Proterozoic times, Palaeozoic palaeomagnetism and the formation of Pangaea, the geomagnetic fields, continental movements, and configurations and mantle convection since Archaean times, and more.
Download or read book Geomagnetism Aeronomy and Space Weather written by Mioara Mandea and published by Cambridge University Press. This book was released on 2019-11-14 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: An interdisciplinary review of research in geomagnetism, aeronomy and space weather, written by eminent researchers from these fields.
