651-3440-01L  Geophysics II

SemesterSpring Semester 2021
LecturersA. Jackson, P. Tackley
Periodicityyearly recurring course
Language of instructionEnglish


651-3440-01 GGeophysics II
Die Lehrveranstaltungen sind wie folgt aufgeteilt:
Vorlesung jeweils 10-12
Übungen jeweils 12-13
42s hrs
Mon/110:15-12:00HG D 7.2 »
12:15-13:00HG D 7.2 »
Thu/110:15-12:00NO C 6 »
12:15-13:00NO C 6 »
12.04.10:15-12:00HG G 19.1 »
12:15-13:00HG G 19.1 »
A. Jackson, P. Tackley

Catalogue data

AbstractTreatment of fundamental aspects of gravimetry and geomagnetism. We review the fundamentals of gravity set out by Newton, orbital dynamics and gravity applications in exploration geophysics. We will explore the mechanisms by which the geomagnetic field is created, how geomagnetic measurements can be used for resource exploration, and how palaeomagnetism tells us about the history of the Earth.
ObjectiveTreatment of fundamental aspects of geophysics in the area of gravimetry and geomagnetism: methods and applications.
Our objectives are to learn fundamental theories and techniques relevant to the geomagnetic and gravity fields, 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 spheres of geomagnetism and gravity.
ContentGravimetry: gravitation, Earth rotation, centrifugal force. Gravity, geoid, reference ellipsoid, normal gravity. Reduction of gravity measurements, gravity anomalies. Isostasy: models of Pratt, Airy, Vening Meinesz. Interpretation of gravity anomalies and relationship to dynamic and static features.
Geomagnetism: 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.
Lecture notesLecture slides will be distributed.
LiteraturePrimary Texts:
W. Lowrie: Fundamentals of Geophysics, Cambridge University Press 1997 (1st Edition) or 2007 (2nd Edition)
C. M. R. Fowler: The Solid Earth - An Introduction to Global Geophysics, 2004.
Secondary Texts:
F. D. Stacey and P. M. Davis: Physics of the Earth, Cambridge Uniiversity Press 2008.
Prerequisites / NoticePrerequisite: The Dynamic Earth I or an equivalent course.

Performance assessment

Performance assessment information (valid until the course unit is held again)
Performance assessment as a semester course
ECTS credits4 credits
ExaminersA. Jackson, P. Tackley
Typegraded semester performance
Language of examinationEnglish
RepetitionRepetition possible without re-enrolling for the course unit.

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Offered in

Earth and Climate Sciences BachelorGeneral Courses in Earth SciencesOInformation