No Thickness   Depth    Vp       Vs
       (m)       (m)    (m/s)    (m/s)
 1,    3.00,    3.00,  320.00,  160.00
 2,    7.00,   10.00,  740.00,  370.00
 3,   20.00,   30.00, 2930.00, 1290.00
 4,   34.00,   64.00, 3300.00, 1510.00
 5,   -----,   -----, 3300.00, 1650.00