id	keyword
gc-390	gas
gc-390	seismic
gc-390	avo
gc-390	spot
gc-390	data
gc-390	stack
gc-390	fig
gc-390	ing
gc-390	ion
gc-390	section
gc-390	synthetic
gc-390	log
gc-390	methods
gc-390	arc
gc-390	amplitude
gc-390	rap
gc-390	inversion