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651-3440-02L  Geomagnetism

SemesterFrühjahrssemester 2016
DozierendeA. Jackson
Periodizitätjährlich wiederkehrende Veranstaltung

KurzbeschreibungTreatment of fundamental aspects of geophysics in the area of geomagnetism: methods and applications. We will explore the mechanisms by which the geomegnetic field is created, how geomagnetic measurements can be used on small and regional scales to discover sub-surface properties of the crust, and how palaeomagnetism tells us about the hiistory of the Earth.
LernzielOur objectives are to learn fundamental theories and techniques relevant to the geomagnetic field, but also to put them into practice in a quantitative way. We will learn to use mathematical techniques make quantitative estimates of geophysical phenomena. The examination will require the implementation of mathematics to solve questions in the sphere of geomagentism.
InhaltGeomagnetism: geomagnetic fields of external and internal origin, dipole and non-dipole fields, diurnal variation, magnetic prospecting, magnetic anomalies. Rock magnetism, remanent magnetizations. Paleomagnetism: sample treatment, secular variation, geocentric axial dipole field, apparent polar wander curves, polarity reversals, magnetic stratigraphy.
SkriptScript will be distributed.
LiteraturPrimary Text:
W. Lowrie: Fundamentals of Geophysics, Cambridge University Press 1997 (1st Edition) or 2007 (2nd Edition)
Secondary Texts:
C. M. R. Fowler: The Solid Earth - An Introduction to Global Geophysics, Cambridge University Press, 1990.
F. D. Stacey and P. M. Davis: Physics of the Earth, Cambridge Uniiversity Press 2008.
Voraussetzungen / BesonderesPrerequisite: The Dynamic Earth I or an equivalent course.