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All Journal Buletin Sumber Daya Geologi Jurnal Teras Fisika : Teori, Modeling, dan Aplikasi Fisika
Tony Rahadinata
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Education Energy Engineering Environmental Science Materials Science & Nanotechnology

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Identifikasi struktur geologi bawah permukaan berdasarkan pemodelan 3D data gravitasi (studi kasus daerah potensi panas bumi Kepahiang) Sukmaji Anom Raharjo; Aditya Verry Saputra; Tony Rahadinata
Jurnal Teras Fisika: Teori, Modeling, dan Aplikasi Fisika Vol 5 No 2 (2022): Jurnal Teras Fisika: Teori, Modeling, dan Aplikasi Fisika
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jtf.2022.5.2.7248

Abstract

A survey of the gravity method in the Kepahiang geothermal potential area has been carried out, covering an area of ​​12×16 km2 with a total of 332 measurement data points. This study aims to identify the subsurface geological structure and the distribution of subsurface rock density associated with the hydrothermal system of the potential geothermal area. Modeling and identifying subsurface geological structures using derivative analysis can determine the type of fault structure produced by subsurface mass's vertical contact. The 3D modeling results show a block with a low-density value located in the hot spring area in a southwest direction. The low rock density is about 2.4 g/cm3 and is interpreted as pyroclastic rock undergoing weathering due to rising hydrothermal solutions. The modeling results also show a block of rock with high density, interpreted as a response to andesite rock, basalt, which is still compact and possible as a heat source for the Kepahiang geothermal area.
KARAKTERISASI MANIFESTASI TERMAL MENGGUNAKAN METODE RASIO SALURAN, LAND SURFACE TEMPERATURE, DAN NORMALIZED DIFFERENCE VEGETATION INDEX DI LAPANGAN PANAS BUMI GUNUNG PAPANDAYAN, JAWA BARAT: CHARACTERIZATION OF THERMAL MANIFESTATION USING BAND RATIO, LAND SURFACE TEMPERATURE, AND NORMALIZED DIFFERENCE VEGETATION INDEX METHODS IN PAPANDAYAN MOUNTAIN GEOTHERMAL FIELD, WEST JAVA Satriyo, Muhammad; Fadillah Azhar Deaudin Kurniawan; Tony Rahadinata; Santia Ardi Mustofa
Buletin Sumber Daya Geologi Vol 20 No 3 (2025): Buletin Sumber Daya Geologi
Publisher : Pusat Sumber Daya Mineral Batubara dan Panas Bumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47599/bsdg.v20i3.515

Abstract

The research area is located in the Gunung Papandayan Geothermal Field, which is interesting to study further due to several thermal manifestations found on the surface. However, a detailed remote sensing study accompanied by field validation has never been conducted in this field. Thus, this study aims to conduct a more detailed remote sensing analysis to describe the characteristics of thermal manifestations in the field that can be a reference for direct observation and support analysis in detailed geoscience studies. The remote sensing analysis performed is visual image analysis, surface temperature analysis, vegetation stress analysis, and band ratio analysis. The results showed that thermal manifestations can be found in the Papandayan Crater and Tegal Alun areas. The presence of manifestations is characterized by areas that have little to no vegetation in visual image observations, high land surface temperature (LST) anomalies, and normalized difference vegetation index (NDVI) values less than 0.3. Meanwhile, alteration minerals were identified from several band ratio analyses conducted.
Co-Authors Aditya Verry Saputra Fadillah Azhar Deaudin Kurniawan Santia Ardi Mustofa Satriyo, Muhammad Sukmaji Anom Raharjo