id	keyword
amq-559	boundary
amq-559	pliocene
amq-559	section
amq-559	offida
amq-559	olduvai
amq-559	sequence
amq-559	series
amq-559	polarity
amq-559	del
amq-559	chron
amq-559	pleistocene
amq-559	ascensione
amq-559	gauss
amq-559	time
amq-559	profile
amq-559	della
amq-559	gravel
amq-559	che
amq-559	matuyama
amq-559	late
amq-559	fig
amq-559	globorotalia