GEODYNAMICS- SIO 234

http://topex.ucsd.edu/geodynamics

A general course on the dynamics and kinematics of the solidearth based on the text of Turcotte and Schubert and Advanced Geodynamics
Prerequisite: some familiarity with (or willingness to learn ) partial differential equations and Fourier transforms.



David Sandwell; 1102 IGPP; dsandwell@ucsd.edu; Ph. 534-7109 Cell. 858-663-9426

Lecture course, 4-units, letter grade or S/U grade, homework, presentations, quizes, final.

The grades are based on 10-20 points for every problem. Homework, quiz, and final problems are all 10-20 points each. The presentations are 50 points each.

MWF, 11:00 - 11:50 AM,  - https://ucsd.zoom.us/j/95870815313

Please use this Google DOC form to enter typos in the appendix. Person that finds the most typos gets a prize.



SYLLABUS
DATE
TOPIC
READING/HOMEWORK
LECTURER

Review complex numbers and contour integration
Problems


Introduction and Plate Tectonics


02 OCT
Class Overview
1.1 Observations related to plate tectonics
KML files
Read: T&S, Ch. 1.1 to 1.14 or
Plate Tectonics, S,T&O, Ch. 2.
HW1 Ex. 1.1 - 1.5
Sandwell
05 OCT
3.1 - 3.2 Plate Tectonic - Theory
Read: The Ocean basins: Their Structure 
and Evolution
, Chapter 2 (in IGPP Reading Room)

Reference: MORVEL Tectonic Model
Sandwell
07 OCT
3.3 - 3.7 Plate Motions on a Sphere
2.1- 2.4 Fourier Transforms
Functions of a Complex Variable (review);
Matlab Tutorial
HW2 Ex. 3.2 - 3.5
Sandwell
09 OCT
2.5 - 2.7 Fourier Transforms
HW3 Ex. 2.3 - 2.9
Matlab Hints
Sandwell
12 OCT
4.1 - 4.6 Marine Magnetic Anomalies
Plate Motions, Reconstructions, and Plumes
View Videos on Plate Tectonics
Maria Seton
Dick Hey
John Tarduno
Sandwell

Heat Flow

14 OCT
Heat Conduction, Heat Flow Measurements, and Global Heat Budget
Read: T&S, Ch. 4.1 to 4.19
Sandwell
16 OCT
Continental and Oceanic Geotherms
HW4
Heat Flow Papers for HW4
Sandwell
19 OCT
More heat from from T&S
Read: T&S, Ch. 4.19 to 4.26

Sandwell
21 OCT
5.1 - 5.3 Cooling of the Oceanic Lithosphere HW5 - Problems from T&S, Ch. 4
4-9, 4-10, 4-14, 4-23, 4-24,  4-37
Sandwell
23 OCT
Quiz on Plate Tectonics and Fourier Transforms


26 OCT
5.4 - 5.5  Thermal Subsidence
Parsons and Sclater, JGR, 1977
Stein and Stein, Nature, 1992
Sandwell
28 OCT
5.6 Buoyancy of the Lithosphere;
Dikes and sills;
Cooling of a Lava Lake (Stefan Problem)
Doin and Fleitout, EPSL, 1996
Hillier and Watts, JGR, 2005

Sandwell
30 OCT
6.1 - 6.5 Review Stress and Strain
Solutions to Exercises 6.1 and 6.2

Sandwell

Isostasy, Rheology, and Flexure

02 NOV
7.1 - 7.6 Isostasy and Swell Push Force
7.6 Rheology of the Lithosphere

Flesch et al., 2001

Sandwell
04 NOV
Moment vs. Curvature
8.1 - 8.3 Flexure Theory
Read T&S, Ch3.1 to 3.9
Sandwell
06 NOV
9.1 - 9.3 Flexure Examples
Burov and Watts
Burgmann and Dresen_2008
Read: T&S, Ch 3.9 to 3.12
HW6 -
Problems from T&S, Ch. 3
3-1, 3-7, 3-14, 3-19, 3-22
Sandwell
09 NOV
Presentations of heat flow problems Read: T&S, Ch. 3.13 to 3.18
13 NOV
Presentations of heat flow problems

HW7
Flexure Papers for HW7



Earthquakes

16 NOV
10.1 - 10.3 Strike-slip fault: deformation and moment Read: T&S Ch. 8.1 to 8.9 Sandwell
18 NOV
11.1 - 11.2 Heat Flow Paradox
Sandwell
20 NOV
Earthquake Cycle

Sandwell

Gravity

23 NOV
12.1 - 12.2 Global Gravity
13.1 - 13.5 Reference Earth Model

Sandwell
25 NOV
15.1 - 15.3 Laplace's Equation and Satellite Altimetry
HW8
Read: Watts, JGR, 1978
Sandwell
30 NOV
16.1 - 16.7 Poisson's Equation and Bouguer Anomalies


02 DEC
Presentations for HW7

04 DEC
Presentations for HW7

Read: T&S, Ch. 6.1 to 6.10

07 DEC
17.1 - 17.7 Gravity/topography transfer function and Isostatic geoid anomalies HW9 - Problems from T&S, Ch. 6
6-1, 6-3, 6-6, 6-11


Fluid Mechanics


09 DEC
Channel Flow and Stream Function
Sandwell
11 DEC
18.1 - 18.3 Postglacial Rebound
Sandwell


SIO 234 SUGGESTED BOOKS:

Textbooks:

Geodynamics: Second Edition,  Turcotte, D. L. and Schubert, G., Cambridge University Press, 2002.
or
Geodynamics: Third Edition,
Turcotte, D. L. and Schubert, G.,
Cambridge University Press, 2014.

Advanced Geodynamics: Fourier Transform Methods, Sandwell, D. T., Cambridge 2021.

 

Reference Books:

Mantle Dynamics:    Mantle Convection in the Earth and Planets, Schubert, G., Turcotte, D. L. and P. Olson, Cambridge University Press, 2001

Fourier Transforms:    The Fourier Transform and its Application, Bracewell, R. N.,  McGraw-Hill Book Co., New York, 1978.  (Chapters 2, 6)

Marine Geophysics:    The Ocean Basins: Their Structure and Evolution, The Open  University , Pergamon Press, 1989.   (Chapters 2, 3)

General Ref.:     Physics of the Earth, Stacey, F. D.,  John Wiley & Sons, New  York, 1969.

Computer Homework:

Computer homework can be done using MATLAB or Python.