id	keyword
geusb-4687	coal
geusb-4687	peat
geusb-4687	jurassic
geusb-4687	seam
geusb-4687	formation
geusb-4687	mires
geusb-4687	pyrite
geusb-4687	middle
geusb-4687	clay
geusb-4687	bornholm
geusb-4687	petersen
geusb-4687	fig
geusb-4687	coal seams
geusb-4687	nielsen
geusb-4687	zone
geusb-4687	denmark
geusb-4687	accumulation
geusb-4687	level
geusb-4687	lake
geusb-4687	high
geusb-4687	pollen
geusb-4687	bagå
geusb-4687	freshwater
geusb-4687	coal coal
geusb-4687	peat formation
geusb-4687	area
geusb-4687	basin