Seismic Anatomy
A seismic profile gives us information about the sub-surface. However it is important to understand it is not a photograph or a cross-section but a seismic image, a picture of the earth seen through the 'eyes' of a seismic wave.
This is not such a strange idea, we are used to seeing x-ray images of our bones, such an image does not show skin, blood, veins or even cells, but they are still there in spite of the x-ray only imaging bones. Similarly seismic does not show everything, it only shows surfaces that reflect seismic waves.
