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Handbook 1997 : Faculty of Science : Earth Sciences

625-391 Gravity and Magnetic Field Geophysics

Note:

Geophysics as a separate third year teaching component will not be offered in 1998 and following years.

Credit Points:

16.0

Coordinator:

Dr L Thomas

Prerequisite/s:

Earth Sciences 625-101; Physics 640-121 + 640-122 (before 1996: 640-120), 640-141 + 640-142 (before 1996: 640-140) or 640-161 + 640-162 (before 1996: 640-160); Mathematics 618-231 or 618-232.

Timetable:

Semester 1

Contact:

26 lectures (two a week) and 39 hours (3 hours a week) of practical work

Objectives:

On completion of this subject, students should:

Comprehend:

  • how elementary potential field theory is used to predict the effect at the surface of different density and magnetisation properties of rocks in the Earth.

Have developed:

  • skills in applying this knowledge to interpret surface observations in terms of the distribution of rocks in the subsurface;

  • geophysical skills through practical experience in the acquisition and manipulation of potential field data;

Appreciate:

  • the importance of rational, critical, and independent thought in Geology and Geophysics.

Content:

Elementary potential theory; elementary inversion theory; gravity signatures of simple structures; acquisition and processing of gravity field data; processing and manipulation of geophysical maps; magnetic properties of rocks; magnetic signatures of simple structures; transformations of magnetic field maps. The use of geophysical equipment for gravity and magnetic data acquisition. Inversion and interpretation of point, profile, and map data obtained from such systems. Use of computing systems for modelling of responses in the several fields.

Assessment:

A 3-hour theory examination or a 2-hour theory examination and one or two essays of up to 1000 words each. Laboratory work will be continuously assessed.

Prescribed Texts:

  • Telford W M, Applied Geophysics, pb ed. CUP.
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Handbook 1997 : Faculty of Science : Earth Sciences 
Status:                   OFFICIAL 1997
Last Modified:            Wednesday March 12 3:36 pm
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Copyright © University of Melbourne 1997.