Physics of the earth system Lecture 13 of 18

October 11, 2012 by Multimedia Publications and Printing Services

Lecturer: A. Aoudia, ICTP

Lesson number 13 (A. Aoudia)

Structure of the Earth

This is the first lesson of the third part of the course, dealing with Solid Earth Geophysics. At the beginning the teacher gives a brief introduction to the course. The teacher describes the structure of the Earth, that can be divided in to different layers called crust, mantle, outer core and inner core. The outermost shell of the Earth is called lithosphere which is placed above the asthenosphere. Then the teacher described the basic concept of plate tectonics: the lithosphere is divided into a small number of nearly rigid plates which are moving over the asthenosphere. Most of the deformation that results from the plate motion takes place at the boundary of a plate. Plate boundaries are of three types:

  • divergent: where plates are moving from each other
  • convergent: where plates are approching each other
  • conservative: where plates move laterally relative to each other.

Textbooks:

The Solid Earth - Second Edition: An Introduction to Global Geophysics

C.M.R. Fowler - Cambridge University Press

Fundamentals of Geophysics (Chapters 1,3)

W. Lowrie - Cambridge University Press

Additional readings

Modern Global Seismology (Intermediate level)

T. Lay and T.C. Wallace - Academic Press

The Seismic Wavefield (Advanced level)

B.L.N. Kennet - Cambridge University Press

  

Plate Tectonics - Berkeley University

Plate Tectonics - Berkeley University

An interesting resource about plate tectonics

An interesting resource about plate tectonics 

The story of plate tectonics - United States Geological Survey

The story of plate tectonics - United States Geological Survey

Plate tectonics: geological aspects - University of Leicester (UK)

Plate tectonics: geological aspects - University of Leicester (UK)

The New Theory of the Earth

The New Theory of the Earth

A documentary on plate tectonics

A documentary on plate tectonics

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