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Table 3 Temperature, chemical (pH, Cl, SO4) and isotope values of meteoric waters (AM), rivers and cold springs for Irazú (I)

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

Sample Date GPS location Elevation T pH Cl SO4 δ18O δD Q
N W m a.s.l °C mg/L mg/L kg/s
AMI1 12/11/09 9.96339 83.81147 2623 15.3 n.m 4 6 − 4.1 − 18 1
AMI2 12/11/09 9.95495 83.82019 2512 13.4 n.m 5 4 − 3.6 − 14 1
AMI3 12/11/09 9.94709 83.81990 2357 15.7 n.m 0 4 − 8.6 − 58 2
AMI4 12/11/09 9.95181 83.82502 2489 13.2 n.m 10 14 − 8.6 − 54 3
AMI5 12/11/09 9.94699 83.83091 2397 13.7 n.m 9 49 − 10.5 − 69 12
AMI6 12/14/09 10.03367 83.86285 1916 17.9 n.m 8 97 − 7.9 − 49 n.m
AMI7 12/14/09 10.01621 83.84826 2336 13.1 n.m 17 14 − 6.8 − 39 1
AMI8 12/14/09 10.00655 83.83698 2348 14.8 n.m 7 109 − 9.5 − 59 1
AMI9 12/14/09 10.00531 83.83605 2347 19.5 n.m 21 529 − 9.8 − 60 1
AMI10 12/14/09 10.00455 83.82937 2336 12.9 n.m 3 239 − 8.9 − 55 1
AMI11 12/14/09 10.00462 83.83554 2354 14.6 n.m 14 50 − 4.1 − 17 0.5
AMI12 12/14/09 10.00044 83.84297 2759 11.2 n.m 8 10 − 7.0 − 37 0.5
AMI13 12/14/09 9.96382 83.83516 2969 12.2 n.m 4 18 − 5.8 − 32 1
AMI14 12/14/09 9.96059 83.84438 2888 11.8 n.m 7 34 − 11.1 − 76 1
AMI15 12/14/09 9.94488 83.86962 2478 13.4 n.m 8 29 − 11.7 − 82 3
AMI16 12/15/09 9.96065 83.87814 2769 12.6 n.m 3 32 − 11.7 − 78 n.m
AMI17 12/15/09 9.94215 83.88493 2420 14.6 n.m 8 b.d.l − 11.7 − 80 30
AMI18 12/16/09 9.99008 83.85372 2997 n.m n.m 0 1281 − 0.1 2 n.m
14 12/10/09 9.92398 83.79650 1612 19.6 n.m 3 13 − 7.6 − 44 100
AM HBA 12/10/09 9.93108 83.80825 1835 n.m n.m 7 2 − 7.4 − 47 n.m
Río Birris HBA 12/10/09 9.93211 83.80819 1792 18 n.m 4 27 − 9.0 − 60 n.m
Río Caliente SC 12/14/09 10.04027 83.86959 1887 29.6 n.m 220 922 − 8.8 − 55 110
Rio Sucio 12/18/09 10.14812 83.94936 475 17.1 3.14 28 445 − 6.1 − 34 228
Río Hondura 12/18/09 10.14739 83.95020 478 13.8 7.03 0 42 − 5.9 − 32 n.m
SC cold up 12/14/09 10.03390 83.86642 1887 n.m n.m 6 21 − 4.8 − 25 n.m
SC cold springs 08/04/07 10.03390 83.86642 1887 15.3 6.98 2 23 − 5.3 − 28 n.m
SC waterfall 12/14/09 10.03394 83.86219 1860 n.m n.m 220 977 − 9.2 − 57 n.m
  1. Meteoric water values are generally assumed as corresponding to the rivers (Ríos and Quebradas), for which the average water discharges are reported. HBA and SC as in Table 2
  2. n.m. not measured