Palaeomagnetism

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Palaeomagnetism and Tectonics of the Mediterranean Region

Author : Antony Morris,Donald Harvey Tarling
Publisher : Geological Society of London
Page : 438 pages
File Size : 42,6 Mb
Release : 1996
Category : Science
ISBN : 1897799551

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Palaeomagnetism and Tectonics of the Mediterranean Region by Antony Morris,Donald Harvey Tarling Pdf

The Mediterranean region represents a complex mosaic of continental, microcontinental and ophiolitic terranes, whose overall evolution has been controlled by relative movements between the African and Eurasian plates. Palaeomagnetic studies have played an important part in deciphering the sequence of tectonic events in this region. The 33 papers presented here span the full width of the Mediterranean basin and present results from Permian to Quaternary rocks.

Palaeomagnetism

Author : Donald H. Tarling
Publisher : Springer Science & Business Media
Page : 388 pages
File Size : 51,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400959552

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Palaeomagnetism by Donald H. Tarling Pdf

Palaeomagnetism and archaeomagnetism are fascinating specialized studies because they are applicable to such a wide range of problems in geology, archaeology and geophysics. They can also be undertaken cheaply, when compared with most other geophysical techniques, and, at first sight, simply. In fact, real comprehension of the magnetic processes that have occurred in rocks and other types of material over several thousands or many millions of years is still extremely difficult to assess and measure. On this basis, this book cannot explain all such features, nor can it attempt to cover all the actual and potential applications of the method. All that can be attempted is to give an impression of the ways in which such techniques can be used in a wide variety of fields, and how these techniques are usually applied. The magnetization of rocks is, in fact, one of the earliest of the true sciences, but we are still not in a position to answer many of the problems posed. Consequently some of the examples given of applications are, essentially, state-of-the-art comments, rather than being a review as such. The changing position of the geomagnetic poles with time is still not adequately defined, for example, and some of the more recent conventional views are given, although the emphasis is placed on more subjective, probably more controversial, evaluations.

Palaeomagnetism and Diagenesis in Sediments

Author : Donald Harvey Tarling,Peter Turner
Publisher : Geological Society of London
Page : 226 pages
File Size : 52,7 Mb
Release : 1999
Category : Nature
ISBN : 1862390282

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Palaeomagnetism and Diagenesis in Sediments by Donald Harvey Tarling,Peter Turner Pdf

Palaeomagnetism in Fold and Thrust Belts: New Perspectives

Author : E.L. Pueyo,F. Cifelli,A.J. Sussman ,B. Oliva-Urcia
Publisher : Geological Society of London
Page : 289 pages
File Size : 55,7 Mb
Release : 2016-08-23
Category : Science
ISBN : 9781862397378

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Palaeomagnetism in Fold and Thrust Belts: New Perspectives by E.L. Pueyo,F. Cifelli,A.J. Sussman ,B. Oliva-Urcia Pdf

Palaeomagnetism is a technique used to understand complex deformation patterns in fold-and-thrust belts; it can be used to characterize the distribution, magnitude and timing of vertical axis rotations, an elusive variable using other methods. A combination of palaeomagnetic and structural geology analyses has helped to unravel the geometry and kinematics of fold-and-thrust belts around the world and of different geological ages for more than 50 years. This volume comprises three sections: the first shows thorough overviews of western Mediterranean arcs and the western Carpathians; the second depicts several examples from the Andes, the Alps, Anatolia, Pyrenees, Iberian Ranges and the Atlas; and the third shows the latest research on the use of palaeomagnetism to understand fold-and-thrust belts in 3D and 4D in a more quantitative way and it also includes some methodological proposals to avoid common errors. In the papers of the first two sections, the combination of palaeomagnetic analyses with structural data, AMS or magnetostratigraphic analyses demonstrate the usefulness of palaeomagnetism in deciphering complex deformation patterns in fold-and-thrust belts.

Methods in Rock Magnetism and Palaeomagnetism

Author : D. Collinson
Publisher : Springer Science & Business Media
Page : 503 pages
File Size : 41,5 Mb
Release : 2013-06-29
Category : Science
ISBN : 9789401539791

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Methods in Rock Magnetism and Palaeomagnetism by D. Collinson Pdf

During the last 30 years the study of the magnetic properties of rocks and minerals has substantially contributed to several fields of science. Perhaps the best known and most significant advances have resulted from the study of palaeomagnetism, which led to quantitative confirmation of continental drift and polar wandering through interpretation of the direction of remanent magnetism observed in rocks of different ages from different continents. Palaeomagnetism has also, through observations of reversals of magnetiz ation, ancient secular variation and ancient field intensities provided data relevant to the origin of the geomagnetic field, and other investigations have contributed significantly to large-scale and local geological studies, the dating of archaeological events and artefacts and more recently to lunar and meteoritic studies. Rock and mineral magnetism has proved to be an interesting study in its own right through the complex magnetic properties and interactions observed in the iron-titanium oxide and iron sulphide minerals, as well as contributing to our understanding of remanent magnetism and magnetization processes in rocks. Simultaneous with the development of these studies has been the develop ment of instruments and techniques for the wide range of investigations involved.

Palaeomagnetism and Plate Tectonics

Author : M. W. McElhinny
Publisher : CUP Archive
Page : 410 pages
File Size : 51,9 Mb
Release : 1979-10-18
Category : Science
ISBN : 0521297532

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Palaeomagnetism and Plate Tectonics by M. W. McElhinny Pdf

Methods in Palaeomagnetism

Author : D.W. Collinson,K.M. Creer,S.K. Runcorn
Publisher : Elsevier
Page : 628 pages
File Size : 52,6 Mb
Release : 2013-10-22
Category : Science
ISBN : 9781483274997

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Methods in Palaeomagnetism by D.W. Collinson,K.M. Creer,S.K. Runcorn Pdf

Methods in Paleomagnetism covers the proceedings of the NATO Advanced Study Institute on Paleomagnetic Methods, held in the Physics Department of the University of Newcastle upon Tyne on April 1-10, 1964. The book focuses on apparatus and techniques used in paleomagnetism and rock magnetism. The selection first offers information on sampling techniques in the field and measurement of natural remanent magnetization. Discussions focus on ballistic and spinner magnetometers; paleomagnetic sampling with a portable coring drill; portable apparatus for collecting small oriented cores; and portable field-sampling equipment. The book also takes a look at procedures to test the stability of magnetization, as well as physical properties of demagnetization; thermal demagnetization by the continuous method; and apparatus for thermal demagnetization by the progressive method. The text ponders on measurement of isotropic and anisotropic susceptibility and magnetic measurements in applied fields. Topics include preliminary account of a refined technique for magnetic susceptibility anisotropy measurement of rocks; errors in anisotropy measurements with the torsion balance; and measurement of the anisotropy of the susceptibility with an astatic magnetometer. The selection is a valuable reference for readers interested in paleomagnetism.

Geomagnetism and Palaeomagnetism

Author : F.J. Lowes,D.W. Collinson,J.H. Parry,S.K. Runcorn,D.C. Tozer,A. Soward
Publisher : Springer Science & Business Media
Page : 367 pages
File Size : 55,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400909052

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Geomagnetism and Palaeomagnetism by F.J. Lowes,D.W. Collinson,J.H. Parry,S.K. Runcorn,D.C. Tozer,A. Soward Pdf

This volume presents lectures given at the NATO Advanced Study Institute held 11-22 April 1988 at Newcastle upon Tyne, England. The aim of the Institute was to improve the interaction between workers in observational geomagnetism (using historical data) and archaeo- and palaeo-magnetism (using the remanent magnetization of man-made artefacts and of natural sediments and rocks) and those trying to interpret the data in terms of mechanisms inside or outside the Earth, particularly those developing dynamo theories of the field. The material discussed ranged from magnetic bacteria swimming round a circle in a few seconds, the effect of El Nino, through secular variation with time scales of tens to thousands of years and the'mechanics of individual field reversals and excursions (aborted reversals?) to possible modulation of average reversal frequency on the hundred million year time scale. Many members of the Physics Department helped with the organization, and we are most grateful to them, and in particular to Anne Codling for her very many contributions. We also gratefully acknowledge the painstaking work of Aileen Dryburgh and Lynn Whiteford in so carefully typing the manuscript.

Palaeomagnetism and Magnetostratigraphy of Karst Sediments in Slovenia

Author : Nadja Zupan Hajan,Andrej Mihevc,Petr Pruner,Pavel Bosák
Publisher : Založba ZRC
Page : 270 pages
File Size : 50,9 Mb
Release : 2008-01-01
Category : Karst
ISBN : 9789612540586

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Palaeomagnetism and Magnetostratigraphy of Karst Sediments in Slovenia by Nadja Zupan Hajan,Andrej Mihevc,Petr Pruner,Pavel Bosák Pdf

Namen knjige je predstaviti rezultate 10 let trajajočih slovensko-čeških raziskav, ko smo predvsem z različnimi paleomagnetnimi metodami intenzivno raziskovali kraške površinske in jamske sedimente v različnih geografskih in geoloških območjih Slovenije. Paleomagnetne raziskave sedimentov so prinesle presenetljive rezultate glede starosti sedimentov v jamah in na površju in s tem tudi prve podrobne informacije o starosti jam in posredno tudi našega krasa. Pri vzorčevanju sedimentov za paleomagnetne analize smo v nekaterih primerih našli fosilne ostanke favne, njihova najdba je zelo pomembna ker, smo tako lahko rezultate paleomagnetnih in magnetostratigrafskih analiz postavili v točno določen čas.

The Use of Palaeomagnetism and Rock Magnetism to Understand Volcanic Processes

Author : M.H. Ort,M. Porreca,J.W. Geissman
Publisher : Geological Society of London
Page : 283 pages
File Size : 52,8 Mb
Release : 2015-04-09
Category : Science
ISBN : 9781862396296

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The Use of Palaeomagnetism and Rock Magnetism to Understand Volcanic Processes by M.H. Ort,M. Porreca,J.W. Geissman Pdf

This volume provides a synopsis of current research on volcanic processes, as gained through the use of palaeomagnetic and rock magnetic techniques. Thermoremanent magnetization information provides a powerful means of deciphering thermal processes in volcanic deposits, including estimating the emplacement temperature of pyroclastic deposits, which allows us to understand better the rates of cooling during eruption and transport. Anisotropy of magnetic susceptibility and anisotropy of remanence are used primarily to investigate rock fabrics and to quantify flow dynamics in dykes, lava flows, and pyroclastic deposits, as well as identify vent locations. Rock-magnetic characteristics allow correlation of volcanic deposits, but also provide means to date volcanic deposits and to understand better their cooling history. Because lava flows are typically good recorders of past magnetic fields, data from them allow understanding of changes in geomagnetic field directions and intensity, providing clues on the origin of Earth’s magnetic field.

Palaeomagnetism and the Continental Crust

Author : J. D. A. Piper
Publisher : Unknown
Page : 460 pages
File Size : 44,9 Mb
Release : 1987-07-21
Category : Science
ISBN : UCAL:B4558216

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Palaeomagnetism and the Continental Crust by J. D. A. Piper Pdf

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.

Ecosystem Dynamics in a Polar Desert

Author : Anonim
Publisher : American Geophysical Union
Page : 224 pages
File Size : 42,6 Mb
Release : 1998
Category : Desert ecology
ISBN : 9789780875909

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Ecosystem Dynamics in a Polar Desert by Anonim Pdf

Presents information from the primary abiotic forces defining the system, and from the present hydrology, biogeochemistry and physics of major sites of organic carbon production of the McMurdo Dry Valleys. Additionally, research on the physical, chemical, and biological properties of the dry valley soils is included. The role of environmental management in long-term ecological studies is also addressed. The accompanying CDROM provides details and scale to visualize the McMurdo Dry Valleys from an ecosystem perspective.

Palaeomagnetism and Stratigraphic Correlation

Author : Alekseĭ Nikitich Khramov
Publisher : Unknown
Page : 422 pages
File Size : 40,6 Mb
Release : 1960
Category : Geomagnetism
ISBN : UCSD:31822010262566

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Palaeomagnetism and Stratigraphic Correlation by Alekseĭ Nikitich Khramov Pdf

A Re-examination of Certain Statistical Methods in Palaeomagnetism

Author : André Larochelle
Publisher : R. Duhamel
Page : 24 pages
File Size : 47,6 Mb
Release : 1967
Category : Experimental design
ISBN : IND:30000138323088

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A Re-examination of Certain Statistical Methods in Palaeomagnetism by André Larochelle Pdf

The particularities of statistical methods in the field of Palaeomagnetism are discussed. A novel approach is used to derive expressions giving estimates of the angular variance and of the angular standard deviation of a population on the basis of a sample of size N drawn randomly from the population. Tests of significance based on these definitions are described. These tests turn out to be identical to those previously described by Watson for the particular cases where the vectors have a fisherian distribution. A numerical example is worked out to illustrate the application of the tests.