Earth, Planets and Space

Table 3 Major element compositions of volcanic glass analyzed with EPMA (Additional file 4, Additional file 5: Table S1)

From: Volcanic ash in bare ice south of Sør Rondane Mountains, Antarctica: geochemistry, rock magnetism and nondestructive magnetic detection with SQUID gradiometer

Sample	N	SiO₂	TiO₂	Al₂O₃	FeO	MnO	MgO	CaO	Na₂O	K₂O	SO₂	F	Cl
JARE54-ASH1
Mean	14	61.56	1.05	13.76	10.50	0.20	2.46	6.85	2.99	0.48	0.11	0.01	0.15
1σ		1.56	0.12	0.53	0.77	0.02	0.38	0.38	0.16	0.07	0.07	0.01	0.05
JARE54-ASH3
Mean	42	60.86	1.07	14.01	10.64	0.20	2.56	7.08	2.98	0.45	0.08	0.01	0.15
1σ		0.61	0.07	0.73	0.61	0.04	0.25	0.26	0.23	0.03	0.03	0.02	0.02
Total
Mean	56	61.04	1.06	13.95	10.61	0.20	2.53	7.02	2.99	0.45	0.09	0.01	0.15
1σ		0.98	0.08	0.69	0.65	0.04	0.29	0.31	0.21	0.05	0.04	0.02	0.03

N number of analyzed grains

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