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| Author | : Lisa Tauxe |
| Publisher | : Univ of California Press |
| Total Pages | : 506 |
| Release | : 2010-03-19 |
| Genre | : Nature |
| ISBN | : 0520946375 |
Download Essentials of Paleomagnetism Book in PDF, ePub and Kindle
More than 400 years ago William Gilbert said, "The Earth itself is a great magnet." Today, we know that it is also a great magnetic tape recorder. This work is a comprehensive, up-to-date textbook on extracting and using rock and paleomagnetic data in archaeological, geological, and geophysical applications. Designed for students and professionals with knowledge of college level physics and some background in earth sciences, it describes both the theory and the practice of paleomagnetism, covering topics such as the basics of magnetism, geomagnetic fields, how rocks become magnetized, and the various ways of analyzing the magnetism of rocks. The book uses the companion PmagPy software package. An appendix contains a brief introduction to Python, an easy-to-use, cross-platform, and most important, free programming environment in which PmagPy programs are written.
| Author | : Michael W. McElhinny |
| Publisher | : Elsevier |
| Total Pages | : 407 |
| Release | : 1999-10-18 |
| Genre | : Science |
| ISBN | : 0080513468 |
Download Paleomagnetism Book in PDF, ePub and Kindle
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
| Author | : Kenneth P. Kodama |
| Publisher | : John Wiley & Sons |
| Total Pages | : 343 |
| Release | : 2012-08-24 |
| Genre | : Science |
| ISBN | : 1118384156 |
Download Paleomagnetism of Sedimentary Rocks Book in PDF, ePub and Kindle
This book describes the paleomagnetism of sediments and sedimentary rocks, how sediments and sedimentary rocks become magnetized, and how the physical and chemical processes involved can affect the accuracy of paleomagnetism. Topics covered include depositional and post-depositional remanence acquisition, the detection and correction of compaction-caused inclination shallowing, reduction diagenesis of magnetic minerals, chemical remagnetization, and rotation of remanence by grain-scale rock strain. The book also has a chapter on environmental paleomagnetism, including examples of the new technique of high-resolution rock magnetic cyclostratigraphy and its application to sedimentary sequences. By emphasising the accuracy of sedimentary paleomagnetism and the magnitude of post-depositional processes that can affect it, the book will be invaluable in the geologic interpretation of sedimentary paleomagnetic data. Paleomagnetism of Sedimentary Rocks will be welcomed by paleomagnetists, students of paleomagnetism and all Earth scientists who use sedimentary paleomagnetic data in their research. Additional resources for this book can be found at: www.wiley.com/go/kodama/paleomagnetism.
| Author | : L. Tauxe |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 302 |
| Release | : 2005-12-17 |
| Genre | : Science |
| ISBN | : 0306481286 |
Download Paleomagnetic Principles and Practice Book in PDF, ePub and Kindle
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.
| Author | : Lev V. Eppelbaum |
| Publisher | : |
| Total Pages | : 201 |
| Release | : 2015 |
| Genre | : SCIENCE |
| ISBN | : 9781634831567 |
Download New Developments in Paleomagnetism Research Book in PDF, ePub and Kindle
Paleomagnetic field analysis occupies a separate place in the variety of studied physical parameters, since it assists us in obtaining specific 'stamps' of past geomagnetic field configurations. It is well-known that life on Earth and all geological-environmental processes occur in the changing geomagnetic field (the Earth's magnetic field intensity is now decreasing). Geological-geophysical records indicate that hundreds and hundreds of Earth's magnetic field reversals have occurred. Paleomagnetic research has revealed information about ancient (from hundreds to billions years ago) magnetic field changes, which reflects definite geological, archaeological, cosmological and environmental events of that time. Some geodynamic and tectonic information derived from paleomagnetic field analysis cannot be obtained by any other geophysical or geological methods. This book reveals the current understanding of leading scientists studying paleomagnetic on new approaches and results in different regions of the world. Three main issues are presented in the book: a comparison of the Earth's geomagnetic field and the Earth's biota evolution processes over the last 2.5 billion years (Chapter 1); combined paleomagnetic mapping examples of some areas of the Eastern Mediterranean (Chapter 2); various aspects of archaeomagnetic artifact examination, including advanced mathematical approach applications (Chapters 3 and 4); and utilization of geomagnetic data from the past for historical reconstruction of China and Mesoamerica (Chapter 5). The five chapters present results of investigations of scientists from different scientific schools and demonstrate the application of various methods and approaches to analyze ancient and comparatively recent geomagnetic fields. Undoubtedly, these results are interesting both from theoretical and practical points of view. This book is intended for students of corresponding specialties, geologists, geophysicists, archaeologists and environmental scientists. This book can also be of interest to the general public interested in paleomagnetism, archaeology, geology and geophysics.
| Author | : Aleksey N. Khramov |
| Publisher | : Springer |
| Total Pages | : 340 |
| Release | : 1987-10-15 |
| Genre | : Science |
| ISBN | : |
Download Paleomagnetology Book in PDF, ePub and Kindle
This book explores the basic principles and methods of paleomagnetology and gives a systematic description of paleomagnetic phenomena such as geomagnetic reversals, paleosecular variations, long-term intensity changes and apparent polar wandering paths. Special emphasis is laid on results obtained from research work done in the Soviet Union. Together with data from other parts of the world they allow the critical discussion of aspects of magnetostratigraphy, plate tectonics and accretion tectonics. In diesem Buch werden grundlegende Fragen der Paläomagnetologie und des Paläomagnetismus abgehandelt. Durch die Einbeziehung zahlreicher Daten aus der Sowjetunion werden Probleme der Magnetostratigraphie sowie der Platten- und Akkretionstektonik kritisch beleuchtet.
| Author | : Maria Thérèse Cioppa |
| Publisher | : |
| Total Pages | : 356 |
| Release | : 1996 |
| Genre | : Appalachian Mountains |
| ISBN | : |
Download Paleo-and Environmental Magnetic Investigations in the Appalachians of Pennsylvania Book in PDF, ePub and Kindle
Paleosecular variation, mineral magnetic, magnetic fabric and $\sp{14}$C studies were carried out in three lakes in Pennsylvania. In Lake Waynewood, a clear record of watershed changes over the past 3700 years BP is available. Prior to 2700 BP, little evidence of allogenic influx is present, whereas, at 2700 yrs BP, the magnetic mineralogy and the magnetic fabric suggest allogenic sources for the magnetic minerals. Between 2700 and 1900 yrs BP, major changes in mineral magnetic properties suggest an interval of instability in the watershed. Conditions were more stable between 1900 and 100 yrs BP, and at 100 yrs BP, the effects of clearcutting are apparent. Similar studies were carried out in Lakes Lacawac and Giles. In all three lakes, a sharp change in mineral magnetic properties, most notably a drop in the ferrimagnetic content of the sediments, is seen $\sim$1800-1900 yrs BP. The change in mineral magnetic properties is consistent with increased input of antiferromagnetic minerals (goethite or hematite), implying that all three lakes were responding to a regional or global climate event causing increased erosion.
| Author | : Robert F. Butler |
| Publisher | : Wiley-Blackwell |
| Total Pages | : 319 |
| Release | : 1992 |
| Genre | : Science |
| ISBN | : 9780865420700 |
Download Paleomagnetism Book in PDF, ePub and Kindle
| Author | : Julie Ann Bowles |
| Publisher | : |
| Total Pages | : 336 |
| Release | : 2005 |
| Genre | : |
| ISBN | : |
Download Paleointensity of Earth's Magnetic Field, with Applications to the Study of Mid-ocean Ridge Accretionary Processes Book in PDF, ePub and Kindle
Reversals in the polarity of Earth's magnetic field have long been used to provide age constraints on oceanic crust and other geologic materials. More recently, it has been recognized that shorter period variations in field intensity hold the potential for placing tighter age constraints on a variety of processes and materials. Archeological artifacts, sedimentary sections, and young volcanic flows are potential candidates for paleointensity dating. This dissertation examines two kinds of records that go into providing reference curves for such dating schemes and addresses the feasibility and applications of paleomagnetic dating, focusing on mid-ocean ridge accretionary processes. Chapter 1 is an evaluation of paleointensity data (05 ka) from archeological materials in the American Southwest and northwestern South America. New data is presented and placed in the context of existing data to examine regional variations in paleointensity. Such independently-dated regional curves are used in Chapter 4 to place age constraints on undated materials. Chapter 2 examines short-period variations in sea-surface magnetic anomalies between ̃ 1011 Ma. Such "tiny wiggles" allow for additional age constraints between field reversals. Though globally correlated, the nature of these tiny wiggles has not been conclusively tied to either short field reversals or simple intensity variations alone. In this chapter, a sedimentary record of relative paleointensity variations is compared to deep-tow marine magnetic anomalies in an attempt to resolve this issue. Chapter 3 turns to paleointensity recorded in young submarine basaltic glass (SBG) at mid-ocean ridges. The chapter examines the role cooling rate may play in influencing paleointensity estimates and uses a small set of samples from the southern East Pacific Rise as a test case for dating young flows (
| Author | : Yulong Cui |
| Publisher | : |
| Total Pages | : 360 |
| Release | : 1995 |
| Genre | : |
| ISBN | : |
Download Paleomagnetic and Mineral Magnetic Investigation of Geomagnetic Field Behavior Book in PDF, ePub and Kindle
