| Code |
Course Name |
Language |
Type |
| JEF 322 |
Geomagnetism |
Turkish |
Compulsory |
| Local Credits |
ECTS |
Theoretical |
Tutorial |
Laboratory |
| 3 |
2 |
3 |
0 |
0 |
| Course Prerequisites and Class Restriction |
| Prerequisites |
None |
| Class Restriction |
None |
| Course Description |
| Basic concept on magnetic field and magnetizations: magnetic pole, magnetic force line, Coulomb’s law, magnetic potential of a single pole,
lines of force from a unit magnetic pole, description of dipole and dipole field, behaviour of a dipole in the presence of uniform and
nonuniform magnetic field, the forces between bar magnets-magnetic field of a uniformly magnetized sphere-magnetic elements.
Laboratory instruments for magnetic mesurements: theodolite, QHM, BMZ, Earth inductor, proton magnetometer, flux- gate magnetometer,
optically pumped magnetometers, Helmholtz Coil systems – instruments used to measure variation of Earth’s magnetic field (variometers).
Interpretation of magnetogram. Variation of Earth’s magnetic field in space and in time. Ionosphere. Systematic measurements of Earth’s
magnetic field over the sphere. Spherical harmonic analysis. The hypothesis on the cause of Earth’s magnetic field. Magnetic fields of the
other planets. Behaviour of the Earth’s magnetic field in geological times. Kinds of magnetizations. Minerals responsible for magnetization
of the rocks. Acqusition of natural remanent magnetizations in nature. Collecting oriented rock samples. Instruments used in measurement
of remanent magnetization. Reliability tests for remanent magnetization. Calculating of mean direction of remanent magnetization and
statistical parameters. Reversal of Earth’s magnetic field. Palaeomagnetic pole positions and its wandering. Palaeomagnetism and
continental drift. |
|
