One man can
transport and operate
the electrotelluric® survey equipment.
A close-up of the
electrotelluric® survey
in action. "Kicks" to the right indicate
anomalies in ultra-low-frequency
electromagnetic waves as the waves
pass through hydrocarbon deposits,
with specific frequencies corresponding
to exact depths.
Attendees of the March 7,
1997
San Antonio demonstration map
out the next test location.