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. 534-7109
John Orcutt; 2213 IGPP; Ph. 822-6378

Lecture course, 4-units, letter grade or S/U grade, homework, weekly and final quiz.

MWF, 9:00 - 9:50 AM,  - Munk Conference Room
class@ucsd.edu


SYLLABUS
DATE
TOPIC
READING/HOMEWORK
LECTURER

Introduction and late Tectonics


23 SEP
Introduction
Global tectonic observations; Powerpoint;
Read: T&S, Ch.1. 1-55 or
Plate Tectonics, S,T&O, Ch. 2.
HW1
Sandwell
26 SEP
Plate Tectonic - Triple Junctions

Cande
28 SEP
Plate Tectonic - Plate Motions on Sphere
Atwater Movies
Read: The Ocean basins: Their Structure 
and Evolution
, Chapter 2 (in IGPP Reading Room)

Cande
30 SEP
Applications of fourier transforms; Functions of a Complex Variable (review);
Matlab Tutorial
HW2
Sandwell
03 OCT
Marine magnetic anomalies
Sandwell
05 OCT
Plate Motions, Reconstructions, and Plumes

Sandwell
07 OCT
Quiz 1: Plate Tectonics and Fourier Transforms exercises
Sandwell

Heat Flow


10 OCT
Heat conduction, heat flow measurements, and Global heat budget; Read: Heat Transfer, T&S, Ch. 4., 132-
HW3  publications for HW3
Sandwell
12 OCT
Solving heat conduction problems

Sandwell
14 OCT
Cooling of dikes and sills
Read: Heat Transfer, T&S, Ch. 4., 166-183 Sandwell
17 OCT
Cooling of the oceanic lithosphere;
Ocean floor topography; 
Lateral Plate Shrinkage
Heat flow and hydrothermal circulation
HW4 Problems from T&S, Ch. 4
4-9, 4-14, 4-23, 4-25, 4-37
DUE 24 OCT
Sandwell
19 OCT
Buoyancy of the lithosphere;
Cooling of a lava lake (Stefan problem)
Summary of boundary later cooling

Read: Doin and Fleitout, EPSL, 1996
Read Hillier and Watts, JGR, 2005
Sandwell
21 OCT
Quiz 2: Heat Flow from T&S p. 132-160 and exercises from class ( skip 4-14)

Read: T&S, Ch. 2. 89-104
Sandwell

Isostasy, Rheology, and Flexure

24 OCT
Isostasy and crustal thickness;
Review Stress and Strain

Read: Brace and Kohlstedt, JGR, 1980
Burov and Watts
Burgmann and Dresen_2008
Sandwell
26 OCT
Rheology of the Lithosphere
Moment vs. Curvature
Read: Elasticity, T&S, Ch3, 105-120

Sandwell
28 OCT
Presentations of heat flow problems
A - Marine Magnetics

B - Heat flow across SAF

31 OCT
Presentations of heat flow problems
C - Periodic heating of the Earth's surface

D - Temp Evolution of an oceanic fracture zone

02 NOV
Presentations of heat flow problems
E - Global ocean heat flow

F - Heat flow due to plume

04 NOV
Presentations of heat flow problems
Flexure Theory

Read: Flexure, T&S, Ch.3, 112-131;
HW5
G - Frictional heating during an earthquake
07 NOV
Flexure Examples  
Sandwell

Earthquakes

09 NOV
Theories of faulting; 
Seismic cycle. 
Reading 
Interseismic deformation due to strike-slip faults
Class notes, T&S Chapter 8, 339-359;
Heat flow paradox
Sandwell
11 NOV
Holiday - Veterans Day
Optional Field Trip to Pinon Flat Observatory


Agnew,
Fialko
Sandwell
Shearer
14 NOV
Student presentations of flexure problems

A - Ice shelf flexure

B - Seamount flexure

E - Lake loading flexure
16 NOV
Student presentations of flexure problems
C - Trench Flexure
G - Outer Rise Yield Strength


D - Fracture Zone Flexure

Gravity

18 NOV
Reference gravity
Gravity Anomalies
Read T&S, Gravity, 195-207 F - Flexure on Venus

Sandwell
21 NOV
Laplace's equation and satellite altimetry

Watts, JGR, 1978
Sandwell
altimetry_ppt

23 NOV
Poisson's equation and Bouguer anomalies
HW6
Sandwell
25 NOV
Holiday - Thanksgiving



Fluid Mechanics


28 NOV
Gravity/topography transfer function; Isostatic geoid anomalies, Swell-push force Read T&S, Fluid Mechanics, 226-241
Please complete CAPE, Nov 21 - Dec 4
Sandwell
30 NOV
Channel Flow and Stream Function
HW7 Problems from T&S, Ch. 6
6-1, 6-3, 6-6, 6-11
Due Dec 8
Sandwell
02 DEC
Postglacial Rebound

Sandwell


SIO 234 SUGGESTED BOOKS:

Textbooks:

Geodynamics: Second Edition,  Turcotte, D. L. and Schubert, G., John Wiley & Sons, New York, 2002.
 

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 Fortran, C, or MATLAB which runs on most machines.  If you do not have a computer account we will set you up.