Locality	Layer
	Poland, Lublin Coal Basin, Wiercenie Kock 4 borehole	G2, 1091,7-1086 m
	Poland, Lublin Coal Basin, Wiercenie Kock 5 borehole	Go gamma, 1552,2-1546 m
	Poland, Lublin Coal Basin, Wiercenie Kock 7 borehole	E, 1007-965 m