id	keyword
gc-1011	formation
gc-1011	trace
gc-1011	facies
gc-1011	kheneg
gc-1011	argiles
gc-1011	fossils
gc-1011	isp
gc-1011	fig
gc-1011	oxfordian
gc-1011	deposits
gc-1011	unit
gc-1011	doi
gc-1011	algeria