profile is an important tool during
Seismic waves are a result of an earthquake as waves of energy that travel through the
Earth’s layers in different ways and at different speeds.
They are categorised
as P and S–waves.
They can be detected
P-waves can travel
through solids and liquids whereas S-waves
will only travel through solids.
A wave is split into
reflected and refracted waves when encountering a change in material properties
These waves properties are at the basis of the seismic profile.
The seismic reflection consists of occuring
seismic waves with for example an airgun ( for the marine survey aquisitions)
and measuring the time to travel from the source , reflect off an interface and
be detected by hydrophones .With the time and the velocity of the waves the
geophysicists reconstruct the way of the waves in order to build up an image of
The seismic profile allows in this way the visualisation of
the different geological layers .
The analysis of the Exp359 cores should allow the scientists to turn the seismic profiles into stratigraphic profiles describing and dating the different sediments layers.