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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
  1. N number of analyzed grains