id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
geusb-4790	Bernstein, Stefan; Knudsen, Christian	Epithermal gold and massive sulphide mineralisation in oil impregnated Palaeogene volcanic rocks of Ubekendt Ejland, West Greenland	2004	4	.pdf	application/pdf	2647	167	55	The presence of Fe-Pb-Zn sulphides in several veins may indicate that the sampled level of the veins is below that of precious metal deposition, that according to the model of Buchanan (1981) would appear above that of base metal sulphides. The latest veining and mineralisation stage resulted in the formation of chalcedony veins that are usually 1–2 mm thick, but chalcedony com- monly occurs in cavities and vein centres within massive sul- phides.	cache/geusb-4790.pdf	txt/geusb-4790.txt