Waves: Seismic Imaging and Tectonics

Synopsis: DVD aimed at K3-5 stage students. With footage of earthquakes, graphics and interviews with seismic survey teams the programme provides an introduction to waves and how they are used. The different types of waves are illustrated and the key terminology of amplitude, wavelength, frequency and period explained through clear graphics. The DVD looks at how different waves behave depending on the nature of the material they are passing through. It shows how seismic survey teams make use of these differences in velocity, absorption, refraction and reflection to find out about underlaying rock structures. The programme also explores how new evidence provided by the study of seismic waves has helped to develop plate tectonic theory and led to a greater understanding of earthquakes.
Language: English
Country: Great Britain
Year of release: 2015
Subjects: Geography; Physics
Keywords: seismology; waves; tectonics

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