Swiss Journal of Geosciences

Table 1 Mean mica compositions from the meta-pelite sample MC301, with standard errors also listed

From: The 3D interplay between folding and faulting in a syn-orogenic extensional system: the Simplon Fault Zone in the Central Alps (Switzerland and Italy)

	White mica				Biotite
	S1, n = 16		S4, n = 19		n = 10
	Mean	Error	Mean	Error	Mean	Error
SiO₂	46.63	0.60	46.72	0.46	36.40	0.23
TiO₂	0.36	0.06	0.38	0.03	1.58	0.09
Cr₂O₃	0.02	0.01	0.02	0.02	0.02	0.02
Al₂O₃	33.32	0.78	33.00	0.78	17.58	0.25
FeO	3.40	0.14	3.34	0.19	19.36	0.19
MnO	0.01	0.01	0.01	0.01	0.14	0.04
MgO	1.41	0.20	1.45	0.17	10.45	0.04
CaO	0.01	0.01	0.01	0.01	0.01	0.02
Na₂O	0.65	0.09	0.61	0.08	0.15	0.03
K₂O	9.42	0.23	9.39	0.26	9.25	0.21
Total	95.23	0.43	94.93	0.26	94.94	0.29

Footwall sample, Urseren Zone (Swiss coordinate system: 647656/134493). S1: old S₁ fabric; S4: S₄ axial plane cleavage to the Berisal and Glishorn backfolds, related to development of the Northern Steep Belt

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