'Model ELF1' / 0. 10. 0. 10. -1. 5. / (boundaries of the model) 4 surfaces 5 simple blocks: -1 2 / -2 3 / -3 4 / -4 / 1 / (free space) 4 complex blocks: 1 / 2 / 3 / 4 / 'SURFACE' 1 -3 0 0 0 / (i.e. W-X3=0, tension=0) 0.0 (W) '1-D INTERFACE' 2 -3 0 0 0 / (i.e. W-X3=0, tension=0) 0.5 (W) '3-D PLANE P1' 3 1 2 -3 0 / (i.e. W(X1,X2)-X3=0, tension=0) 2 2 (numbers of grid points) 0 10 (X1 grid coordinates) 0 10 (X2 grid coordinates) 3 2 2 1 (X3 coordinates at grid points) '3-D PLANE P2' 4 1 2 -3 0 / (i.e. W(X1,X2)-X3=0, tension=0) 2 2 (numbers of grid points) 0 10 (X1 grid coordinates) 0 10 (X2 grid coordinates) 3.5 2.5 4.5 3.5 (X3 coordinates at grid points) 'END OF SURFACES' / 'COMPLEX BLOCK' 1 'VP ' 1 (P wave velocity) 0 0 0 0 / (i.e. VP=W, tension=0) 1.8 'VS ' 1 (S wave velocity) 0 0 0 0 / (i.e. VS=W, tension=0) 0.8 'DEN' 1 (density) 0 0 0 0 / (i.e. density=W, tension=0) 1.8 'COMPLEX BLOCK' 2 'VP ' 1 (P wave velocity) 0 0 0 0 / (i.e. VP=W, tension=0) 2.2 'VS ' 1 (S wave velocity) 0 0 0 0 / (i.e. VS=W, tension=0) 1.0 'DEN' 1 (density) 0 0 0 0 / (i.e. density=W, tension=0) 2.0 'COMPLEX BLOCK' 3 'VP ' 1 (P wave velocity) 0 0 0 0 / (i.e. VP=W, tension=0) 2.7 'VS ' 1 (S wave velocity) 0 0 0 0 / (i.e. VS=W, tension=0) 1.3 'DEN' 1 (density) 0 0 0 0 / (i.e. density=W, tension=0) 2.3 'COMPLEX BLOCK' 4 'VP ' 1 (P wave velocity) 0 0 0 0 / (i.e. VP=W, tension=0) 2.6 'VS ' 1 (S wave velocity) 0 0 0 0 / (i.e. VS=W, tension=0) 1.7 'DEN' 1 (density) 0 0 0 0 / (i.e. density=W, tension=0) 2.1 'END OF COMPLEX BLOCKS, END OF THE INPUT DATA FOR THE MODEL' /