Proceedings of the 6th New Zealand Geothermal Workshop 1985. Heat and chloride inflow into the Puarenga Stream from Whakarewarewa. New Zealand Geothermal Workshop [7-9 Nov. 1984, New Zealand].

Bradford, Elizabeth. Glover, Richard B.

[1984]

CIENA
171

0-86869-056-2

The Puarenga Stream forms part of the boundary of the Whakarewarewa thermal area and carries the discharge from Whaka to Lake Rotorua. Fifteen minute flow and temperature gaugins are made at Hemo George upstream of Whaka and at F.R.I. bridge downstream. Mean daily estimates of the heat flow into the stream and the enthalpy of this flow are made and show changes with rainfall and air temperature, but have otherwise remained fairly constant. The stream have been sampled on 21 occasions over a two year period. All samples are analysed for chloride, ph, and sulphate. Solar heating effects and the stream flow time between Hemo Gorge and F.R.I. bridge have been taken into account. The chloride content of the inflow enthalpy, show a linear relationship which extrapolates well to other features in the area. The chloride inflow is generally constant but shows definite low values. Cl/SO4 ratios indicate a mixing of spring discharges and groundwater.

Presenta diagrs. y gráfs.

NUEVA ZELANDIA; ENERGIA GEOTERMICA; CAMPOS GEOTERMICOS; POZOS GEOTERMICOS; PRUEBAS; CORRIENTES; ANALISIS QUIMICO; FLUIDOS GEOTERMICOS;