Sonic Waveform Images file dictionary for ODP Leg 150 - Hole 905A
150-905A_mono_l.gif = Sonic Waveforms Images - Monopole - Lower Section
150-905A_mono_u.gif = Sonic Waveforms Images - Monopole - Upper Section
150-905A_udip_l.gif = Sonic Waveforms Images - Upper Dipole - Lower Section
150-905A_udip_u.gif = Sonic Waveforms Images - Upper Dipole - Upper Section