Eksplorasi Metode Magnetik Untuk Identifikasi Sumber Panas Bumi (Geothermal) di Desa Wukirharjo, Kecamatan Parengan, Kabupaten Tuban, Jawa Timur

Ramadhan, Arsy Fitrah (2025) Eksplorasi Metode Magnetik Untuk Identifikasi Sumber Panas Bumi (Geothermal) di Desa Wukirharjo, Kecamatan Parengan, Kabupaten Tuban, Jawa Timur. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kabupaten Tuban menjadi daerah yang memiliki beberapa manifestasi panas bumi berupa sumber air panas dan salah satunya di desa Wukirharjo. Manifestasi ini muncul akibat adanya rekahan (patahan) yang menjadi jalur bagi fluida panas untuk naik ke permukaan. Untuk mengidentifikasi jalur patahan serta sumber panas bumi di Desa Wukirharjo, metode magnetik digunakan. Data magnetik dikoreksi dan diproses Upward Continuation, Bandpass, dan Butterworth untuk menghasilkan anomali magnetik lokal dan regional. Selanjutnya, interpretasi kualitatif dilakukan dengan metode Reduction to The Pole, gradien horisontal dan vertikal, serta analisis sinyal. Hasil analisa menujukkan bahwa persebaran sumber panas bumi berasosiasi dengan dugaan struktur patahan yang membentang dari selatan ke utara. Sementara itu, interpretasi kuantitatif dilakukan untuk mengestimasi parameter model dari anomali (seperti kedalaman dan faktor geometri) melalui proses inversi menggunakan Gazelle Optimization Algorithm. Hasil inversi menunjukkan bahwa anomali berupa thin dyke yang terletak pada kedalaman antara 9,86 m sampai 15,91 m
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Tuban Regency is an area that hosts several geothermal manifestations in the form of hot springs, one of which is located in Wukirharjo Village. These manifestations occur due to the presence of fractures (faults) that serve as pathways for hot fluids to rise to the surface. To identify fault lines and geothermal sources in Wukirharjo Village, the magnetic method was employed. The magnetic data were corrected and processed using Upward Continuation, Bandpass, and Butterworth filters to obtain both local and regional magnetic anomalies. Subsequently, qualitative interpretation was carried out using the Reduction to the Pole method, horizontal and vertical gradients, as well as signal analysis. The results indicate that the distribution of geothermal sources is associated with a suspected fault structure extending from south to north. Meanwhile, quantitative interpretation was conducted to estimate the model parameters of the anomaly (such as depth and geometric factors) through an inversion process using the Gazelle Optimization Algorithm. The inversion results suggest that the anomaly is a thin dyke located at a depth ranging from 9.86 m to 15.91 m.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Anomali, Geotermal, Inversi, Metode Magnetik, Patahan, Anomalies, Geothermal, Inversion, Magnetic Method, Faults.
Subjects:	G Geography. Anthropology. Recreation > GB Physical geography > GB1199.5 Geothermal resources Q Science > QC Physics > QC20.7.F67 Fourier transformations Q Science > QE Geology > QE1.F557 Magnetic anomalies--Measurement.
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis
Depositing User:	Arsy Fitrah Ramadhan
Date Deposited:	30 Jul 2025 08:52
Last Modified:	30 Jul 2025 08:52
URI:	http://repository.its.ac.id/id/eprint/124538

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