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Bathymetry model
Réf. 45313484
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Full description
This model is composed of 2 types of foam which behave differently in relation to ultrasounds.
At the beginning, the ocean floor profile cannot be seen by the student; so, the practical work scenario involves reconstituting it.
The profile represented simulates the theoretic structure of an ocean floor from the dorsal, via a plateau to an ocean trench (subduction zone).
By analogy, the ultrasound sensor + model assembly enables students to understand how the seismic reflexion profiles are constructed, with the seisimic
waves replaced by ultrasounds.
Official bulletin programme
| Niveau | Discipline | Texte |
|---|---|---|
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Au début des années 1960, les découvertes de la topographie océanique et des variations de flux thermique permettent d'imaginer une expansion océanique par accrétion de matériaux remontant à l'axe des dorsales, conséquence d'une convection profonde. |
Level
- College
Discipline
- Life and Earth Sciences
Complement(s) :
