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This teaching module provides an overview of our current understanding of the dynamic forces that drive Earth's
evolution by linking seismic observations and mantle mineral properties with geodynamic processes.
Based on geophysical fundamentals (conservation of energy, mass, and momentum, viscous mantle
convection, viscoelastic deformation of the lithosphere, effects of phase transitions),
numerical methods will be presented and explained (finite differences, finite elements, and spectral methods)
that provide versatile modeling tools to study the non-linearly
linked processes of plate tectonics and deep mantle convection.
Using available "public domain" software
(CIG repository),
all participants should become able at the end to solve typical geodynamic problems
(e.g. calculation of lithosphere geotherm or of convective mantle heat flow).
The module examination consists of a written homework on an assigned numerical problem set (in MATLAB), that has to be solved within 6 weeks after finishing of the course. Successful completion will give 6 ECTS. |
Block Course, February 18-26, 2019
| Lectures, Tutorials | Masterstudiengang Geowissenschaften |
Mo-Fr 09.15-16.45 |
2.25.D.0.02 (Computer Pool, Campus Golm, Haus 25) | Sobolev, Riedel & colleagues (GFZ Section 2.5) |
| Date | Time | Topics | Infos |
| 18.02.19 | 10.15 - 11.45 Uhr | Introduction, historical notes and overview of major challenges in solid Earth dynamics | Sobolev |
| 13.00 - 14.30 Uhr | Working with Linux, MacOSX and MATLAB (MathWorks TechDocs online) | Riedel (intro_matlab.pdf, mlintro.pdf, Euler.m) | |
| 14.45 - 16.15 Uhr | Cooling of an isothermal Earth (1D heat conduction equation) | Riedel (earthage.pdf, heat1D_template.m, additional reading) | |
| 19.02.19 | 09.15 - 10.45 Uhr | Physical background: stress, strain, conservation laws, rheology | Sobolev |
| 11.00 - 12.30 Uhr | Overview of numerical methods in geodynamics | Sobolev | |
| 13.30 - 15.00 Uhr | FD methods to solve 1D partial differential equations (MATLAB) | Riedel (FD_methods1D.pdf, heat1D_BTCS_complete.m, heat1D_CN_complete.m, cranknicholson.m, cranknicholson.pdf) | |
| 15.15 - 16.45 Uhr | FD methods to solve 2D partial differential equations (MATLAB) | Riedel (FD_methods2D.pdf, heat2D_explicit_complete.m, stability_analysis.pdf) | |
| 20.02.19 | 09.15 - 10.45 Uhr | Global geodynamic models: modeling mantle convection and plate tectonics | Sobolev |
| 11.00 - 12.30 Uhr | Beyond plate tectonics: plumes, large igneous provinces and mass extinctions | Sobolev | |
| 13.30 - 15.00 Uhr | FD methods to solve macroscopic advection & modeling of subduction (MATLAB) | Riedel (FD_advection.pdf, advection_ftcs_template.m, temspol.pdf, temspol.zip) | |
| 15.15 - 16.45 Uhr | Using public domain software to model thermal convection in the Earth's mantle (the Rayleigh-Benard instability) | Riedel (intro_citcom.pdf, Benchmark1989.pdf, some movie files, additional reading) | |
| 21.02.19 | 09.15 - 10.45 Uhr | Modeling of key plate-tectonic processes (I): Rifting, Continental break-up, Transform faults | Sobolev |
| 11.00 - 12.30 Uhr | Modeling of key plate-tectonic processes (II): Subduction, and subduction orogeny | Sobolev | |
| 13.30 - 15.00 Uhr | The open code "ASPECT": Introduction and Applications | Döhmann | |
| 15.15 - 16.45 Uhr | Rock rheology and lithospheric strength profiles: Introduction and Exercises | Döhmann | |
| 22.02.19 | 09.15 - 10.45 Uhr | Subduction processes in high resolution | Sobolev |
| 11.00 - 12.30 Uhr | Earthquake Physics and Modeling | Sobolev | |
| 13.30 - 15.00 Uhr | Tectonic Rift Modeling | Brune | |
| 15.15 - 16.45 Uhr | Rifted Margins | Brune | |
| 25.02.19 | 09.15 - 10.45 Uhr | Tsunamis: Physics and Numerical Modeling (I) | Babeyko |
| 11.00 - 12.30 Uhr | Tsunamis: Physics and Numerical Modeling (II) | ||
| 13.30 - 15.00 Uhr | FE methods to solve partial differential equations (MATLAB) | Riedel (FE_methods_1D.pdf) | |
| 15.15 - 16.45 Uhr | Introduction to Homework Assignment | Riedel (intro_homework.pdf, homework.pdf, additional reading) | |
| 26.02.19 | 10.00 - 18.00 Uhr | Visit to Section 2.5 Geodynamic Modeling at GFZ Potsdam | Sobolev and group members |
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Recommended Textbooks
D. L. Turcotte and G. Schubert (2014), Geodynamics (3rd ed.), Cambridge University Press, Cambridge (info here). T. Gerya (2009), Introduction to Numerical Geodynamic Modeling, Cambridge University Press, Cambridge (info here). |
Please send comments to mrriedel@uni-potsdam.de