| Title | Geothermal Development Potential of Papandayan Volcano, Garut City, West Java Province Through Geochemical Analysis Study & Field Activity |
|---|---|
| Authors | Murni Sulastri, Dwi Menur Mandriati S, Ir. Andi Agus Nur, MT |
| Year | 2014 |
| Conference | Indonesian Geothermal Association Conference |
| Keywords | Geothermal, Papandayan Volcano, Geochemistry, temperature, pH, manifestation |
| Abstract | The utilization of geothermal resources in order to fulfill national electrical energy and geothermal resources inventory require some supporting instruments, either from a practitioner, academic and also government officials. Beside that, increasing of personnel competency primarily associated with geothermal potential inventory is a very important needs. Center of Geological Education and Training (Pusdiklat) as one unit executing training of the Ministry of Energy and Mineral Resources served to identify techniques of geological data in geothermal exploration, analyzing geological data of geothermal, identify techniques of geochemical data retrieval and also knowing techniques of geophysical data retrieval. Research area is located surrounding Papandayan Volcano, Garut City, West Java Province. Papandayan Volcano which has a summit elevation about 2.665 meters above sea level is believed to have potential geothermal resource. The Methods used in the implementation of this activity through three methods include: method studios, by reviewing literature data based on regional circumstances and previous researchers. The second one is field methods which is reviewing the morphology of the area and measuring pH of geothermal potential surrounding Papandayan Volcano, and the last one is laboratory methods, including reviewing and assessing the pH content of mineral element content in the region. Geological area of the Papandayan Volcano can be divided into three aspects such as : the morphology of this region is dominated by a very steep to steep slope with high mountains landform. The geological structure of the Papandayan Volcano is controlled by normal fault structures that are found in the vicinity of Mount of Nangklak, Crater of Tegal Alun-Alun, Crater of Mas, Mount of Walirang, as well as in the northwestern and southeastern slopes of the Papandayan Volcano with direction of Northeast-Southwest and Northwest and Southeast. The lithology of the area is dominated by the volcano breccia and tuff. The field work was conducted through the interpretation of geochemical data as well as making a direct measurement on one of the manifestations of geothermal springs in the area around Papandayan Volcano which has temperature of 48.30C and the air temperature is about 20.50C. While the pH of hot water is about 2.2. Based on laboratory analysis of the element chemical content known to be dominated by very high chlorite levels, resulting in very acidic pH springs. Based on the research potential of the geothermal area of the Papandayan Volcano, it can be concluded that the area of the Papandayan Volcano has a high geothermal potential and can be developed for further research. |