The geochemistry of the Mahanagdong sector, Tongonan geothermal field, Philippines

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dc.contributor Jarðhitaskóli Háskóla Sameinuðu þjóðanna is
dc.contributor.author Balmes, Cecilia Polo is
dc.date.accessioned 2020-05-12T11:21:24Z
dc.date.available 2020-05-12T11:21:24Z
dc.date.issued 1994
dc.identifier.issn 1670-7427
dc.identifier.uri http://hdl.handle.net/10802/23267
dc.description Myndefni: kort, línurit, töflur. is
dc.description.abstract In this report water geochemistry is used to evaluate the properties of waters from five wells and nine springs in the Mahanagdong sector of the Tongonan geothermal field. The spring waters can be classified into two groups, the alkali chloride waters of Bao, Banati 1 and the wells, and the steam-heated waters of Paril and Hanipolong springs. Based on quartz and Na-K geothermometer temperatures, which are within ±25°C of measured downhole temperatures, the highest subsurface temperature of 290-325°C is predicted in well MG-3D. A slight cooling is experienced by fluids from well MG-5D, located to the southeast. The subsurface temperature estimate for this well is about 267°C. Mixing of the deep hot water with cold groundwater is suggested by the enthalpy-chloride mixing model, to give rise to the Bao and Banati 1 spring waters with 70 to 77% hot water component and subsurface temperature estimates in the range of 218-233°C. Boiling of fluids of the same origin as that of the well waters is also indicated. There is strong evidence that the upflow is near well MG-3D, which is located in the northeast part of the Mahanagdong sector. Further study, however, must be carried out to verify whether Bao and Banati 1 spring waters represent the outflow from the field. is
dc.format.extent 1 rafrænt gagn (22 bls.) is
dc.language.iso en
dc.publisher United Nations University is
dc.publisher Orkustofnun is
dc.relation.ispartofseries United Nations University., UNU Geothermal Training Programme, Iceland. Report ; 1994:2
dc.relation.uri http://www.os.is/gogn/unu-gtp-report/UNU-GTP-1994-02.pdf
dc.subject Jarðhiti is
dc.subject Jarðhitarannsóknir is
dc.subject Jarðhitanýting is
dc.subject Jarðefnafræði is
dc.subject Efnafræði is
dc.subject Jarðfræði is
dc.subject Filippseyjar is
dc.title The geochemistry of the Mahanagdong sector, Tongonan geothermal field, Philippines en
dc.title.alternative Geothermal training in Iceland en
dc.type Bók is
dc.identifier.gegnir 001516318


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