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Table 7 SO4/major elements ratios (e.g. SO4/Na; the ratio for Si is reported as SO4/SiO2) and major elements oxides discharge (e.g. QNa2O) for the studied thermal springs

From: Response of a hydrothermal system to escalating phreatic unrest: the case of Turrialba and Irazú in Costa Rica (2007–2012)

Sample SO4/SiO2 SO4/Na SO4/K SO4/Ca SO4/Mg SO4/Fe SO4/Al QSiO2 QNa2O QK2O QCaO QMgO QFe2O3 QAl2O3 Rock output
mg/s mg/s mg/s mg/s mg/s mg/s mg/s mg/s m3/year
SC 6.1 12.1 31.2 10.7 13.5 18.7 14.7 16,536 22,706 7805 13,259 12,492 15,478 26,139 215,834 2431
BLP + ST 4.2 7.4 30.6 3.7 19.6 20.2 37,577.1 5084 7900 1692 8120 1826 3045 2 49,209 554
OJA1 7.4 30.7 77.8 6.6 16.3 159.8 47.9 72 46 16 113 54 9 42 882 10
HBA2 2.1 5.5 12.7 3.1 6.8 297.6 696.5 625 635 246 594 316 12 7 3735 42
Total rock output                269,660 3037
  1. Rock output rates for the springs are reported (in mg/s, corresponding to m3/y by assuming a rock density of 2800 kg/m3), together with a total rock output for the whole of studied thermal springs. Abbreviations as in Table 2