"A. Demant, P. Munch, N. Romeuf, D. Morata"					
Chapter 34. Distribution and chemistry of secondary minerals (zeolites and clay minerals) from Hole 917A, southeast Greenland Margin"				
152SR-231					

		49	50	51	52

	SiO2	0.36	0.41	0.42	0.55
	Al2O3	25.2	25.08	25.39	23.88
	FeO	21.48	21.55	17.08	16.45
	Fe2O3	5.84	5.67	5.87	4.34
	MnO	0.36	0.28	0.3	0.42
	MgO	8.9	8.9	11.6	11.86
	TiO2	0.48	0.49	0.45	0.53
	Cr2O3	34.82	35.09	35.35	38.7

	Total	97.43	97.46	96.46	96.72

	Structural formulae calculated with 32 oxygens				

	Si	0.091	0.105	0.106	0.139
	Al	7.574	7.54	7.553	7.109
	Fe2	4.582	4.597	3.605	3.476
	Fe3	1.121	1.089	1.115	0.825
	Mn	0.077	0.06	0.065	0.09
	Mg	3.383	3.384	4.363	4.464
	Ti	0.092	0.094	0.085	0.1
	Cr	7.023	7.078	7.055	7.728

	Sum	23.968	23.947	23.947	23.931