ACADSTAFF UGM
| Title | : | Identification of permeable structures and heat source in the geothermal working area of Galunggung Volcano and the heat source connectivity to the Karaha-Cakrabuana Area using gravity data |
| Author | : |
LEO AGUNG PRABOWO (1) Ir. Salahuddin, S.T., M.Sc., Ph.D., IPM. (2) Prof. Dr. Sismanto, M.Si. (3) |
| Date | : | 23 2023 |
| Keyword | : | Galunggung · Gravity method · Derivative analysis · 3D model Galunggung · Gravity method · Derivative analysis · 3D model |
| Abstract | : | Galunggung volcano is a geothermal concession area adjacent to the Karaha-Cakrabuana concession area with a distance of around 1 km. The Indonesian Government plans to build a power plant in 2025, so additional research is needed to support the plan. A gravity survey could help identify permeable structures (fault) and heat sources to a certain depth. The data processing results showed faults seen on the FHD, SVD, and ABL residual maps, while heat sources were shown from the closed contour patterns on the ABL, residual, and regional maps. Derivative analysis strengthens the position and type of fault from the match between the maximum FHD value and zero SVD value. These results identified the existence of three faults in the study area, and were all identified as normal faults. 3D modeling gave a picture of density contrast in the research area. From the section profile that passes through Galunggung and Telaga Bodas craters, the heat source was interpreted as density with value 2.8–3.0 gr/cm3 and marked by orange to red color that coincides below Galunggung crater and continued to Talaga Bodas crater at depths below -3000 masl. This indicates that both concession areas were connected |
| Group of Knowledge | : | Geofisika |
| Original Language | : | English |
| Level | : | Nasional |
| Status | : |
Published
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| No | Title | Action |
|---|---|---|
| 1 |
Journal of Applied Geology vol 8(1) 2023_opt.pdf
Document Type : [PAK] Full Dokumen
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