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Table 3 Bulk rock chemistry of cutting samples from SPW52 and products of the 2015 eruption

From: Source constraints for the 2015 phreatic eruption of Hakone volcano, Japan, based on geological analysis and resistivity structure

Depth/sampleElevationSiOa2TiOa2Fe2Oa3MgOaMnOaCaOaNa2OaK2OaSOa3Al2Ob3
SPW52
 109882.680.0400.3350.1010.0050.2330.0800.0260.33520.645
 209783.130.0410.3720.2020.0030.2170.0290.0140.63017.731
 309682.950.0400.3930.1000.0010.2670.0290.0211.13416.808
 409583.170.0440.4340.0540.0000.4500.0510.0151.83214.138
 509483.200.0400.3290.1150.0010.2480.0580.0190.94716.759
 609383.630.0460.3910.3480.0050.6090.0970.0240.52514.943
 709283.270.0440.3450.3320.0040.2820.0930.0300.49316.935
 809183.560.0460.3990.4690.0030.3600.1110.0230.39615.660
 909082.080.0350.3710.0070.0000.1550.0220.0041.41519.585
 1008982.760.0420.4110.0090.0000.2170.0570.0141.61116.302
 1108882.860.0360.3150.1770.0020.3170.0600.0160.98517.304
 1208782.990.0400.3220.3330.0050.3060.0580.0140.86216.831
 1308682.990.0410.4070.1800.0020.3240.0910.0171.16816.047
 1408583.440.0400.3850.3170.0090.3860.1530.0160.40216.250
 1508483.450.0390.3540.2610.0060.3950.1630.0240.42316.331
 1608383.320.0390.3470.2740.0060.3410.1410.0190.57616.463
 1708283.430.0380.3650.2740.0000.3770.1410.0170.60015.970
 1808183.330.0400.3540.2560.0050.3530.1450.0200.55616.473
 1908083.310.0410.3490.2590.0060.3750.1660.0260.47116.617
 2007983.320.0410.3630.2580.0060.3650.1630.0250.48616.567
 2107883.330.0380.3480.2480.0060.3640.1610.0250.58416.374
 2207783.580.0380.3940.3310.0080.4150.1780.0310.11616.392
 2307683.490.0390.3730.2920.0070.4010.1880.0330.10416.832
 2407583.360.0370.3590.2930.0070.4190.1810.0310.07817.307
 2507483.310.0410.3550.3050.0070.3950.1860.0320.19517.117
 2607383.330.0400.3540.3270.0090.4190.1760.0280.34816.548
 2707283.280.0390.3400.2930.0070.4120.1830.0260.34516.838
 2807183.410.0400.3500.2830.0070.3810.1820.0320.18716.990
 2907083.350.0390.3410.3090.0080.4130.1750.0300.30916.695
 3006983.430.0390.3610.3530.0110.4270.1640.0230.37016.150
 3106883.330.0390.3610.3350.0100.4340.1610.0220.34016.533
 3206783.380.0440.3490.3710.0120.4360.1590.0230.54515.800
 3306683.430.0410.3590.3410.0100.4220.1610.0220.37716.192
 3406583.450.0410.3610.3540.0110.4230.1600.0210.40516.012
 3506483.420.0410.3630.3400.0110.4480.1680.0240.39916.051
 3606383.470.0390.4040.4430.0100.6190.1560.0240.32715.372
 3706283.480.0440.4160.4410.0110.6440.1580.0250.33015.230
 3806183.400.0380.3860.4230.0100.5570.1610.0260.34415.712
 3906083.390.0410.3920.4430.0100.5270.1450.0240.33215.824
 4005983.280.0430.3760.4260.0090.4720.1410.0270.40316.151
 4105883.240.0440.3840.4010.0090.4600.1480.0300.35216.445
 4205783.300.0430.3870.3990.0100.5050.1460.0290.35716.155
 4305683.380.0440.3970.3460.0100.4840.1720.0360.12316.662
 4405583.280.0430.4070.3810.0100.4570.1740.0320.13916.832
 4505483.280.0470.4180.3980.0110.4540.1610.0340.08816.932
 4605383.240.0420.3910.4190.0100.4200.1580.0310.19316.913
 4705283.280.0470.4260.3970.0110.4700.1510.0330.10916.833
Mudflow deposit
 20150629-1 2.750.0450.3760.0520.0030.1320.0360.0220.72319.403
 20150629-2 2.550.0380.2610.0440.0010.0760.0330.0230.64321.350
 20150630 2.780.0370.2720.0500.0010.0640.0360.0220.62120.415
  1. aNormalized by concentration of Al2O3 (wt%)
  2. bwt%