Marshella, Veronica Queenta Febby (2025) Identifikasi Lapisan Bawah Permukaan Menggunakan Metode Geolistrik (Resistivity) Konfigurasi Wenner-Schlumberger Di Desa Kedungjambe, Kabupaten Tuban. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Struktur bawah permukaan tanah berperan penting dalam kegiatan perencanaan pembangunan, eksplorasi sumber daya alam, serta upaya mitigasi terhadap bencana geologi. Penelitian ini dilakukan untuk menganalisis distribusi nilai resistivitas bawah permukaan dan menginterpretasikan jenis dan susunan lapisan bawah permukaan berdasarkan hasil pengolahan data resistivitas di wilayah Desa Kedungjambe, Kabupaten Tuban, dengan menerapkan metode geolistrik resistivitas konfigurasi Wenner-Schlumberger. Terdapat empat lintasan pengukuran yang digunakan, masing-masing memiliki panjang antara 140 hingga 300 meter dengan jarak antar elektroda 5 meter, serta tingkat error di bawah 10%. Lintasan 3 memperlihatkan adanya anomali resistivitas tinggi (>9.13 Ωm) di kedalaman dangkal (2.5–7 meter) yang tidak umum ditemukan, dan diduga berkaitan dengan keberadaan fracture atau sesar aktif yang telah terisi mineral kuarsa atau kalsit, terutama karena posisinya yang dekat dengan kolam air panas dan berada pada jalur patahan. Temuan ini mengindikasikan adanya potensi struktur geologi aktif serta sistem panas bumi di wilayah tersebut.
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The subsurface structure of the soil plays a crucial role in development planning, natural resource exploration, and efforts to mitigate geological hazards. This study was conducted to analyze the distribution of subsurface resistivity values and to interpret the types and arrangements of subsurface layers based on resistivity data processing in Kedungjambe Village, Tuban Regency, using the resistivity geoelectrical method with the Wenner-Schlumberger configuration. Four measurement lines were used, each ranging from 140 to 300 meters in length with an electrode spacing of 5 meters, and an error rate below 10%. Line 3 revealed a high resistivity anomaly (>9.13 Ωm) at a shallow depth (2.5–7 meters), which is uncommon and suspected to be associated with an active fracture or fault filled with quartz or calcite minerals, especially considering its proximity to a hot spring and a fault zone. This finding indicates the potential presence of active geological structures and a geothermal system in the area.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Geoelectrical, Resistivity, Rock Layers, Subsurface Structure, Wenner-Schlumberger, Geolistrik, Lapisan Batuan, Resistivitas, Struktur Bawah Permukaan, Wenner-Schlumberger. |
| Subjects: | G Geography. Anthropology. Recreation > GB Physical geography > GB1199.5 Geothermal resources |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Veronica Queenta Febby Marshella |
| Date Deposited: | 23 Jul 2025 04:13 |
| Last Modified: | 23 Jul 2025 04:13 |
| URI: | http://repository.its.ac.id/id/eprint/120836 |
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