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       CODE: 010.161-018 Buy the DOT:Download/CD-ROM
TITLE(s): OBSERVER, SEISMIC PROSPECTING (petrol. & gas) alternate titles: field seismologist;
geophysical operator; section-plotter operator
Plans and directs activities of field party engaged in collecting seismic data used in prospecting
for oil or gas: Designates location of shot holes and placement of seismometers and connecting
cables over blast area according to plot drawn by SURVEYOR, GEOPHYSICAL PROSPECTING (petrol. & gas).
Plans and directs activities of workers engaged in laying out seismographic measuring apparatus over
test area. Surveys area to verify that equipment is in position specified and tests electrical
circuits for continuity. Directs SHOOTER, SEISMOGRAPH (petrol. & gas) to detonate charges placed in
shot holes, using short wave radio. Observes reaction of recording instruments to detect
irregularity. Develops picture of seismic wave pattern in photographic developing solution. Examines
wave pattern on subterranean strata for evidence of distortion caused by electronic crossfeed, short
circuit, or loose connection. Orders redrilling of shot holes and equipment layout to repeat shot.
Directs repair or repairs instruments or equipment, using manufacturers' manuals and handtools.
GOE: 05.03.04 STRENGTH: L GED: R4 M4 L4 SVP: 7 DLU: 77
ONET CROSSWALK: 24511B Geological Data Technicians
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