Definition

Scanning for acoustic properties of rocks along a certain straight line on the surface by generating a low frequency noise at central point of the line and capturing the acoustic response in array set of sensors along the selected survey line.

The result of the survey is pictured as vertical profile with:

• Horizontal axis showing a distance along the seismic line
  
  
• Vertical axis showing
  
  
  • either a travel time of acoustic wave towards the seismic reflection boundary at normal-incidence
    
    
  • or the depth at which the seismic reflection boundary is found (which is related to travel time via p-wave velocity)
    
    
• Colour is showing the Reflection Coefficient of this part of rocks