Listening to the Waves

B025 LISTENING TO THE WAVES Abstract 1 Joint time frequency analysis (JTFA) as developed by Gabor and subsequently refined by Morlet can be used in conjunction with both supervised as well as unsupervised artificial neural networks to produce seismic lithology maps. In a manner similar to our current understanding of the human hearing system it is possible to develop a procedure in which instantaneous amplitude spectral information obtained from seismic sub-band analyses are used as input to Kohonen Self Organizing Map (SOM) artificial neural networks. One can thereby produce both uncalibrated as well as calibrated cluster analyses from which in