Field Work, Geophysical data acquisition
(Seismic), and processing. 

“A very interesting example of sound waves in a solid, both longitudinal and transverse, are the waves that are in the solid earth. Who makes the noises we do not know, but inside the earth, from time to time, there are earthquakes-some rock slides past some other rock. That is like a little noise. So waves like sound waves start out from such a source very much longer in wavelength than one usually considers in sound waves, but still they are sound waves, and they travel around in the earth.”

Richard Feynman

PAPER LANDSCAPES*

*Proyecto apoyado por el Fondo Nacional para la Cultura y las Artes