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.
Prerequisite: some familiarity with
(or willingness to learn ) partial differential equations and
fourier transforms.
David Sandwell; 1102 IGPP; dsandwell@ucsd.edu; Ph.
5347109
Lecture
course, 4units, letter grade or S/U grade, homework,
presentations, quizes, final.
DATE 
TOPIC 
READING/HOMEWORK 
LECTURER 
Review complex numbers and contour
integration 
Problems 

Introduction and
Plate Tectonics 

28 SEP 
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 Appendix: Ex. 1.1  1.5; Due 03 OCT 
Sandwell 
01 OCT 
3.1  3.2 Plate
Tectonic  Theory Plate Map 
Read: The
Ocean basins: Their Structure and Evolution, Chapter 2 (in IGPP Reading Room) Reference: MORVEL Tectonic Model 
Sandwell 
03 OCT 
3.3  3.7 Plate Motions on a Sphere 2.1 2.4 Applications of Fourier Transforms 
Functions of a Complex
Variable (review); Matlab Tutorial HW2 Appendix: Ex. 3.2  3.5; Due 10 OCT 
Sandwell 
05 OCT 
2.5  2.7 Properties of
Fourier Transforms 
HW3 Appendix: Ex. 2.6  2.9; Due 17 OCT  Sandwell 
08 OCT 
4.1 
4.6 Marine Magnetic Anomalies Plate Motions, Reconstructions, and Plumes Antiplume hypothesis 
View
Videos on Plate Tectonics Maria Seton Dick Hey John Tarduno 
Sandwell 
Heat Flow  
10 OCT 
Heat
Conduction, Heat Flow Measurements, and Global Heat Budget 
Read: T&S, Ch. 4.1 to 4.19 
Sandwell 
10 OCT 
12 PM Optional Review of Math problems 
Revelle Conference Room 
Problems  
12 OCT 
Continental and Oceanic
Geotherms 
HW4 Heat Flow Papers for HW4 
Sandwell 
15 OCT 
More heat from from T&S 
Read: T&S,
Ch. 4.19 to 4.26 
Sandwell 
17 OCT 
5.1  5.3 Cooling of the Oceanic Lithosphere  HW5
 Problems from T&S, Ch. 4 49, 410, 414, 423, 424, 436, 437 DUE 24 OCT 
Sandwell 
19 OCT 
No Class 
Selection of HF problem 

22 OCT 
5.4 Ocean Floor Topography 
Read: Hasterok, 2013 
Sandwell 
24 OCT 
Depth versus age Buoyancy of the Lithosphere; Dikes and sills; Cooling of a Lava Lake (Stefan Problem) Summary of Boundary Later Cooling 
Parsons and Sclater, JGR,
1977 Stein and Stein, Nature, 1992 Doin and Fleitout, EPSL, 1996 Hillier and Watts, JGR, 2005 
Sandwell 
26 OCT 
Subduction
on Venus 6.1  6.6 Isostasy and Crustal Thickness 
Read: Lateral Plate Shrinkage  Sandwell 
Isostasy, Rheology, and Flexure  
29 OCT 
7.1  7.5 Review Stress and Strain Solutions to Exercises 7.1 and 7.2 
Schubert and
Sandwell, 1989 Flesch et al., 2001 
Sandwell 
31 OCT 
Moment vs.
Curvature 8.1  8.3 Flexure Theory 
Read T&S, Ch3.1 to 3.9 
Sandwell 
02 NOV 
8.3 Buckling and Yield
Strength Envelope (YSE) 9.1  9.19 Flexure Examples 
Brace and Kohlstedt, JGR,
1980 Burov and Watts Burgmann and Dresen_2008 Read: T&S, Ch 3.9 to 3.12 HW6  Problems from T&S, Ch. 3 31, 37, 314, 319, 322 DUE 14 NOV 
Sandwell 
05 NOV 
Presentations of heat flow problems  Read: T&S, Ch. 3.13 to 3.18  AMagnetics CWine Cellar 
07 NOV 
Presentations of heat flow problems 
HW7 Flexure Papers for HW7 
FPlume GFrictional Heating 
Earthquakes  

09 NOV  10.1  10.3 Strikeslip fault: deformation and moment  Read: T&S Ch. 8.1 to 8.9  JVertical
loading Sandwell 
12 NOV 
Optional Field
Trip  Pinon Flat Please sign waiver 
Pinon
Guide Radar Reflectors KMZ for reflectors 

14 NOV 
11.1  11.3 Heat Flow Paradox  Sandwell 

16 NOV 
Earthquake Cycle 
Sandwell  
Gravity  
19 NOV 
12.1  12.2 Global
Gravity 13.1  13.5 Reference Earth Model 
Read: T&S, Ch. 5.1 to 5.5 Treatise on Geophysics Wieczorek  planetary geodesy HW8  due 03 DEC 
Sandwell 
21 NOV 
15.1  15.3 Laplace's
Equation and Satellite Altimetry 
Read: Watts, JGR, 1978  Sandwell 
26 NOV 
16.1 
16.6 Poisson's Equation and Bouguer Anomalies 
Read: Parker, 1973  
28 NOV 
Presentations for HW6  Elake
loading Aice shelf flexure 

30 NOV 
Presentations for HW6  Read: T&S, Ch. 6.1 to 6.10 
Bseamount
flexure Ctrench flexure 
03 DEC 
17.1 
17.5 Gravity/topography transfer function and Isostatic
geoid anomalies 
Vviscoelasticity Sandwell 

Fluid Mechanics 

05 DEC 
Channel Flow and Stream Function  HW9  Problems from T&S, Ch. 6 61, 63, 66, 611 Due Dec 8 
Sandwell 
07 DEC 
18.1 Postglacial Rebound  Sandwell 

08 DEC 
Take Home Final Exam Due Dec 15 Do the following 11 Exercises from the Appendix to Geodynamics. Use any books, notes, or internet but do not consult with others. 2.3, 3.1, 4.2, 5.2, 6.3, 8.1, 11.1, (12.1 or 12.5), 16.1, 17.1, 18.1 Please download a fresh version of the Appendix dated December 8 2018. 
Sandwell 
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.
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., McGrawHill 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 Fortran, C, or MATLAB which runs on most
machines. If you do not have a computer account we will
set you up.