ACADSTAFF UGM

CREATION
Title : THE INVESTIGATION OF KADIDIA GEOTHERMAL FIELD (INDONESIA) USING GRAVITATIONAL DATA AND POWER SPECTRUM ANALYSIS
Author :

Prof. Dr. Sismanto, M.Si. (1) ANIS HOERUNISA (2) Dikdik Risdianto (3) Tony Rahadinata (4)
Date : 0 2022
Keyword : Gravity Data, Horozontal Derivatif,Power Spectrum Analysis,3D Modeling Gravity Data, Horozontal Derivatif,Power Spectrum Analysis,3D Modeling
Abstract : Kadidia is one of the area with geothermal potential in Central Sulawesi, Indonesia. Therefore, this study aims to estimate the depth of reservoir and identify subsurface geological structures using gravity data and power spectrum analysis. It uses secondary data from the field survey results of the geophysical team from the Mineral and Geothermal Resource Center Agency. Furthermore, the data were processed to obtain a complete Bouguer anomaly, reduction in a flat field, regional and residual anomalies. The results of residual anomalies showed high and low values in the range of (5-13) mGal corresponding to volcanic rocks and in the range of -10 to -4 mGal spread evenly in the study area respectively. The analysis of derivative showed the presence of intrusive rocks which are thought to be granite, and the power spectrum showed that the heat source rocks from the geothermal system were inferred as granite at a depth of more than (3.68-6.00) km. In addition, the reservoir rocks were interpreted as low-density sandstones at a depth of (0.80-1.37) km, and a caprock in the form of sandstones with medium density at a depth of (0.20-0.80) km, and from the surface to 0.20 km is soil. The interpretation of three-dimensional modeling showed that the faults control geothermal manifestations, i.e. the Koalarawa and Towingkoloe faults, which extends from northwest-southeast.
Group of Knowledge : Geofisika
Original Language : English
Level : Internasional
Status :
Published
Document
No Title Document Type Action
1 17489-Article Text-58503-1-10-20211219 (1).pdf
Document Type : [PAK] Full Dokumen
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2 THE INVESTIGATION OF KADIDIA GEOTHERMAL FIELD (INDONESIA) USING GRAVITATIONAL DATA AND POWER SPECTRUM ANALYSIS.pdf
Document Type : [PAK] Cek Similarity
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3 THE INVESTIGATION OF KADIDIA GEOTHERMAL FIELD (INDONESIA) USING GRAVITATIONAL DATA AND POWER SPECTRUM ANALYSIS.pdf
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