id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
geusb-4395	Hemmingsen Schovsbo, Niels; Thorshøj Nielsen, Arne	Generation and origin of natural gas in Lower Palaeozoic shales from southern Sweden	2017	4	.pdf	application/pdf	2631	152	62	The biogenic methane potential of European gas shale analogues: Results from incubation experi- ments and thermodynamic modelling. Gas composition The sorbed methane concentrations range from 118 to 23867 ppb (micrograms per kg of rock) and the free gas contents from 3 to 13420 ppm (Fig. 2).	cache/geusb-4395.pdf	txt/geusb-4395.txt