'Cotton Valley: initial model for inversion in homogeneous model' 0 1 1 / (Cartesian coordinates, velocities, loss factors) -200 1100 -1000 1200 7000 10000 / (boundaries of the model) 0 surfaces 1 simple block: / 1 complex block: 1 / 'END OF SURFACES' / 'COMPLEX BLOCK' 1 'VP ' 1 (P wave velocity) 0 0 0 0 / (i.e. VP=W, tension=0) 18034. 'VS ' 1 (S wave velocity) 0 0 0 0 / (i.e. VS=W, tension=0) 10412. 'END OF COMPLEX BLOCKS, END OF THE INPUT DATA FOR THE MODEL' /