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Geophysics 612
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Instructor:
Dr.
Vadim A. Kravchinsky
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Contacting Me |
The sign along
the Edmonton – Calgary highway clearly indicates that paleomagnetism
plays an important role in the Albertan country life routine. |
Suggested
Text on Line:
Paleomagnetism: Magnetic Domains to Geologic Terrains
by Robert F. Butler. Blackwell Scientific Publications, 1998. http://www.geo.arizona.edu/Paleomag/book/
Paleomagnetic Principles and Practice by Lisa Tauxe. Kluwer Academic Publishers,
2008. http://magician.ucsd.edu/~ltauxe/
I may add
to a file of additional resources as we go through the course. I will put as
much as possible at the website.
Course Weights
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Assignments (approx. every two-three weeks) |
20% |
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Labs
(sampling and measuring samples, processing data; approx. every two weeks) |
20% |
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Midterm paper and
talk |
25% |
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Term research
paper and talk |
35% |
The
assignments will consist of both essay and mathematical derivations. You may
have to go to the scientific literature or websites to do some of this work.
The research project consists of
- Applying (or developing) the data proceeding algorithm
- A paper describing the problem, algorithm, applied technique, conclusions,
references. Recommended size of the mid-term and term paper is 15 – 20 pages. Additionally you may attach an
appendix if necessary to illustrate any raw or pre-treated data sets, working
tables, matlab codes etc.
- A 15 minute presentation for mid-term and
term papers.
- Marking of the midterm and term paper is 70% for the report and 30% for the
talk.
- Midterm paper submission is due TBA. Talks are on TBA.
- Term research paper submission is due TBA.
Talks are on TBA. Click
here to see the Final Term Paper presentation
schedule.
OUTLINE
1. The
Physics of Magnetism
History and Physics of Magnetism
How we describe the earth's magnetic field
2. The
Magnetic Field of the Earth
Reference Earth Magnetic Field
Dipole approximations of the geomagnetic field
Spherical functions and their normalizations
Paleomagnetic pole calculation
3. Magnetic
minerals, ferromagnetism, Néel thermoremanent
magnetization theory and magnetic remanence.
Neel theory (Thermally Activated Magnetization)
4.
Geomagnetic field, secular change, polarity reversals, paleointensity.
5. Field and laboratory techniques, Fisherian
statistics.
Paleomagnetic sampling in the
field and measurement in the lab
Representing of the measurement results
Rotations and Euler poles
6. Paleomagnetic poles, magnetostratigraphy,
paleogeography. Applications to stratigraphy, tectonics, and
dating of geological events. Application in the
magnetic survey.
Paleomagnetic poles and Apparent
Polar Wander Path
Magnetostratigraphy and its applications
Core
correlation and re-orientation
Tectonic
reconstructions
Paleomagnetic dating of geological events (sediment formation,
metamorphism, volcanism)
Application
in the magnetic survey
7. Magnetic
anisotropy
Applications
(paleocurrent direction reconstruction in sedimentary
basins, volcanic lava flowing direction, plutonic rock flow fabrics,
metamorphic rock fabrics, ore deposits)
8.
Environmental magnetism, biomagnetism, magnetoclimatology, and some other applications.