Geodynamics

GEOS 620
Fall 2004
Tu-Th 2:00-3:30, Natural Sciences 204

Instructors:
Jeff Freymueller Bernie Coakley
x7286 x7xxx
Elvey 307C Natural Sciences 3xx
jeff@giseis.alaska.edu Bernard.Coakley@gi.alaska.edu

Last Updated: September 14

Ignore everything below this for now

General Outline

Course Topics

Grading Scheme

Homework

Final Project

Lecture Topics

Wed January 21, 2004

Introduction
Gravity 1: What is a field?, Mathematical properties of scalar and vector fields, Potential and field, Newtonian Attraction

Mon January 26, 2004

Gravity 2: Measurements of gravity, Potential of an arbitrary 3D body, Potential of a sphere
PROBLEM SET 1 assigned, due Wed February 4.

Wed January 28, 2004

Gravity 3: MacCullough's formula, Earth's gravity field

Mon February 2, 2004

Gravity 4: The Geoid, Shape of the Earth, Introduction to orthogonal functions
PROBLEM SET 2 assigned, due Wed February 11.

Wed February 4, 2004

Gravity 5: Spherical Harmonics, Application to the global gravity field

Mon February 9, 2004

Gravity 6: Satellite Measurements of the Gravity Field and gravity change
PROBLEM SET 3 assigned, due Mon February 23.

Wed February 11, 2004

Gravity 7: More gravity change and spherical harmonics, Tides

Fri February 13, 2004 Initial presentations on Final Projects.

Mon February 16, 2004

Gravity 8: Gravity surveys, Gravity Anomalies, Examples of gravity anomalies from the real world.

Wed February 18, 2004

Gravity 9: Modeling gravity anomalies, Attraction of special mass distributions, Excess mass, Green's equivalent layer, Sinusoidally-varying topography
PROBLEM SET 4 assigned, due Mon March 1.

Mon February 23, 2004

Gravity 10: Compensation, Isostasy, Isostatic Anomalies, Gravity and lithospheric flexure

Wed February 25, 2004 NO CLASS UNAVCO Annual Meeting

Mon March 1, 2004

Gravity 11: Fourier methods, Upward and downward continuation.
PROBLEM SET 5 assigned, due Wed March 10.

Wed March 3, 2004

Gravity 12: Fourier methods, Application of Fourier methods to the compensation

Fri March 5, 2004

Magnetics 1: Electricity and magnetism, Electric and magnetic fields, Magnetic field of the Earth, IGRF

Mon March 8, 2004

Magnetics 2: The dipole and non-dipole fields, Magnetization, Magnetic anomalies.
PROBLEM SET 6 assigned, due Wed March 24.

Wed March 10, 2004

Magnetics 3: Magnetization, Modeling magnetic anomalies, Total field anomaly

Mon March 15, 2004 NO CLASS SPRING BREAK

Wed March 17, 2004 NO CLASS SPRING BREAK

Mon March 22, 2004

Magnetics 4: Reduction to the pole, Examples of magnetic anomaly maps, How rocks get their magnetization, Paleomagnetism, Magnetic reversals and history of Earth's magnetic field

Wed March 24, 2004

Magnetics 5: Paleoinclination and declination, Spherical trig and statistics of directions, Paleomagnetism and plate tectonics

Mon March 29, 2004

Inverse Theory 1: Going from data to model (linear case)

Wed March 31, 2004

Inverse Theory 2: More complex problems
PROBLEM SET 7 assigned, due Mon April 12.

Fri April 2, 2004 EXTRA CLASS -- Catching up.

Mon April 5, 2004

Heat 1: Heat transfer, Fourier's Law, Heat flow in the Earth

Wed April 7, 2004

Heat 2: Heat sources within the Earth and the geothermal gradient, Conduction


PROBLEM SET 8 assigned, due Mon April 19.

Fri April 9, 2004 Progress reports on Final Projects.

Mon April 12, 2004

Heat 3: Conduction on a sphere, 1D time-dependent conduction
PROBLEM SET 9 assigned, due Mon April 26.

Wed April 14, 2004 NO CLASS Seismological Solciety of America Meeting

Mon April 19, 2004

Heat 4: Heating or cooling of a semi-infinite half-space, Cooling of oceanic crust

Wed April 21, 2004

Heat 5: Advection

Mon April 26, 2004

Heat 6: The Stefan problem and phase changes

Wed April 28, 2004

Heat 7: Thermal stresses, mantle adiabats

Fri April 30, 2004 EXTRA CLASS -- Catching up.

Mon May 3, 2004

Heat 8: Convection

END OF CLASSES (but final Project due Fri May 7)