| Author | Balangue, Maria Ines Rosana Dacanay |
| Call Number | AIT Thesis no. ET-84-8 |
| Subject(s) | Geothermal resources--Thailand, Northern
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources & Development |
| Publisher | Asian Institute of Technology |
| Abstract | Knowledge of the geologic setting and geochemistry of a thermal area provides for the determination of the conditions at depth. There are 42 hot springs in Northern Thailand. Despite the presence of impressive hot springs compared with the other hot springs, Pa Pae thermal area has not been studied in detailed. This study investigated the geology and geochemistry of the geothermal system at Pa Pae.
The hot springs in Pa Pae area was found to be underlain by Lower Triassic - Upper Jurassic foliated biotite granites. They were observed to be roughly aligned along a northwesterly-trending fault.
The hot waters of the geothermal system a Pa Pae discharge Na-HCO3-504 waters. Estimated subsurface temperatures using the silica (adiabatic cooling) and the Na-K-Ca geothermometers, are in the range of 177 ํ to 189 ํ c. The hot waters in Pa Pae are believed to be unmixed and of meteoric origin.
A highly generalized model of the geothermal system was formulated. The System at Pa Pae was classified as a convection system with the heat of the thermal waters coming from the "normal" geothermal gradient calculated for the region.
Pa Pae geothermal system share some common features with the other thermal areas in Northern Thailand. These include granitic bedrock and discharge of Na-HCO3 -SO4 waters. in contrast, the hot waters in Pa Pae area has relatively high silica and uniform chloride contents.
|
| Year | 1984 |
| Type | Thesis |
| Chairperson(s) | Blanchard, Francois H.
|
| Examination Committee(s) | Bhattacharya, Sribas C. ; Sauter-Servaes, Florian
|
| Scholarship Donor(s) | Australian Government |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1984 |