PENDUGAAN PANAS BUMI BERDASARKAN LAND SURFACE TEMPERATURE DAN MAGNETOTELLURIK: Studi Kasus: Pantar, Nusa Tenggara Timur

    Reza Mochammad Akbar, - and Mimin Iryanti, - and Ahmad Zarkasyi, - (2025) PENDUGAAN PANAS BUMI BERDASARKAN LAND SURFACE TEMPERATURE DAN MAGNETOTELLURIK: Studi Kasus: Pantar, Nusa Tenggara Timur. S1 thesis, Universitas Pendidikan Indonesia.

    Abstract

    Pulau Pantar di Nusa Tenggara Timur menunjukkan potensi panas bumi yang menarik, ditandai dengan adanya manifestasi. Dalam studi awal eksplorasi panas bumi, land surface temperature sering dimanfaatkan sebagai indikator awal keberadaan sumber energi panas bumi dari bawah permukaan. Untuk mendapatkan gambaran struktur bawah permukaan serta komponen sistem panas bumi secara detail, digunakanlah metode Magnetotellurik (MT). Namun, hingga saat ini, belum ada pemetaan yang terintegrasi dan mendalam di daerah Pantar yang secara spesifik mengidentifikasi daerah dan komponen sistem panas bumi, khususnya melalui integrasi metode LST dan MT. Penelitian ini bertujuan untuk menduga daerah panas bumi berdasarkan anomali land surface temperature serta mengidentifikasi komponen sistem panas bumi berdasarkan penampang resistivitas 2-Dimensi hasil inversi data Magnetotellurik (MT). Hasil penelitian menunjukkan adanya anomali suhu permukaan yang mencapai 41.3°C. Zona indikatif panas bumi berada di timur laut Gunung Sirung dengan total luas sekitar 10.4 km^2 dan mencakup beberapa manifestasi berupa tanah panas Bukit Beang dan Kuaralau. Sementara itu, interpretasi penampang resistivitas dua dimensi Magnetotellurik berhasil mengidentifikasi bagian penting sistem panas bumi, di mana nilai resistivitas rendah (<12 Ωm) mengindikasikan keberadaan lapisan caprock, resistivitas sedang (12-58 Ωm) menunjukkan keberadaan lapisan reservoir fluida hidrotermal, dan nilai resistivitas tinggi (>58 Ωm) diindikasikan sebagai respon dari lapisan sumber panas (heatsource). Pantar Island in East Nusa Tenggara shows interesting geothermal potential, characterized by the presence of manifestations. In early geothermal exploration studies, Land Surface Temperature is often utilized as an early indicator of the presence of geothermal energy symbers from the subsurface. However, until now, there has been no integrated and in-depth mapping in the Pantar area that specifically identifies the area and components of the geothermal system, especially through the integration of LST and MT methods. This study aims to estimate geothermal areas based on land surface temperature anomalies and identify geothermal system components based on 2-Dimensional resistivity cross-section of Magnetotelluric (MT) data inversion results. The results showed a surface temperature anomaly that reached 41.3°C. The indicative geothermal zone is located northeast of Mount Sirung with a total area of approximately 10.4 km^2 and includes several manifestations in the form of Bukit Beang and Kuaralau warm ground. Meanwhile, interpretation of two-dimensional Magnetotelluric resistivity cross-sections successfully identified important parts of the geothermal system, where low resistivity values (<12 Ωm) indicate the presence of caprock layers, moderate resistivity (12-58 Ωm) indicate the presence of a hydrothermal fluid reservoir layer, and high resistivity values (>58 Ωm) are indicated as a response from the heat source layer.

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    Official URL: https://repository.upi.edu/
    Item Type: Thesis (S1)
    Additional Information: https://scholar.google.com/citations?hl=en&user=9UDJ9x8AAAAJ ID SHINTA Dosen Pembimbing: Mimin Iryanti: 5979500
    Uncontrolled Keywords: dugaan, panas bumi, land surface temperature, magnetotellurik estimation, geothermal, land surface temperature, magnetotelluric
    Subjects: G Geography. Anthropology. Recreation > GB Physical geography
    Q Science > QC Physics
    Q Science > QE Geology
    Divisions: Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam > Program Studi Fisika - S1 > Program Studi Fisika (non kependidikan)
    Depositing User: Reza Mochammad Akbar
    Date Deposited: 19 Aug 2025 09:58
    Last Modified: 19 Aug 2025 09:58
    URI: http://repository.upi.edu/id/eprint/135825

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