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All Journal Jurnal Geosaintek Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research)
Sendiya Verentina
Universitas Bengkulu
Earth & Planetary Sciences

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MODEL 3D SEBARAN HIDROTERMAL BERDASARKAN NILAI RESISTIVITAS DI DAERAH GEOWISATA TAMBANG SAWAH, LEBONG BENGKULU Sendiya Verentina; Suhendra Suhendra; Refrizon Refrizon; Intan Gayatriani; Halauddin Halauddin
Jurnal Geosaintek Vol. 11 No. 2 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25023659.v11i2.2677

Abstract

Kapanewon Jetis di Kabupaten Bantul, D.I. Yogyakarta merupakan daerah padat penduduk dengan Tingkat kepadatan kurang lebih 2000 jiwa/m2. Adanya sumber air bawah permukaan di Kapanewon Jetis dapat menjadi solusi alternatif bagi masyarakat dalam memenuhi kebutuhan air bersih, terutama dalam situasi darurat. Tujuan penelitian ini yaitu pemetaan dan identifikasi akuifer air tanah dangkal sebagai upaya konservasi air tanah di Kapanewon Jetis. Metode Vertical Electrical Sounding (VES) dengan konfigurasi Schlumberger dan panjang bentangan maksimum 200 meter telah diterapkan pada 39 titik sounding yang tersebar secara merata di seluruh area studi, yakni Kapanewon Jetis. Resistivitas yang diperoleh bervariasi dari 3 Ωm hingga 800 Ωm dengan interpretasi bawah permukaan berupa soil, akuifer air tanah dangkal, breksi, dan tuff yang masuk dalam bagian Endapan Merapi Muda (Qmi). Analisis data menunjukkan bahwa bagian utara Kapanewon Jetis merupakan daerah resapan utama (recharge area) bagi akuifer di wilayah ini. Hal ini ditandai dengan ketinggian akuifer yang jauh lebih tinggi di bagian utara (32-68 meter) dibandingkan dengan bagian selatan (12 meter), yang mengindikasikan bahwa air tanah di utara merupakan sumber utama bagi daerah lain di Kapanewon Jetis.
Model 3D Sebaran Akuifer Di Geowisata Danau Dendam Tak Sudah Kota Bengkulu Menggunakan Metode Vertical Electrical Sounding (3d Model of Aquifer Layer Distribution Around Lake Dendam Nature Park Of Bengkulu City Using Schlumberger Configuration Geoelectric Method) Intan Gayatriani; Suhendra; Refrizon; Halauddin; Usman Gumanty; Sendiya Verentina; Marven Saputra
Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Management Research) Vol 9 No 1 (2025): Jurnal Penelitian Pengelolaan Daerah Aliran Sungai (Journal of Watershed Manageme
Publisher : Asosiasi Peneliti dan Teknisi Kehutanan dan Lingkungan Hidup Indonesia (APTKLHI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/jppdas.2025.9.1.37-54

Abstract

The city of Bengkulu is the capital of Bengkulu Province, has a lake called Danau Dendam Tak Sudah (DDTS), which is located in a strategic area due to its potential underground water resources. The purpose of this study was to determine the distribution of aquifers around DDTS, in Surabaya Village, Sungai Serut Subdistrict, Bengkulu City through the geophysical method of Vertical Electrical Sounding (VES) with Schlumberger Configuration. VES measurement points were taken at 21 points. This study was conducted in a residential area to determine whether the subsurface aquifer is connected to water in DDTS. Data acquisition used the MAE X612-EM VHR Multi-Channel Resistivitimeter Geoelectric tool. The results of data acquisition in the field were then processed using Progress, Strater, IP2win and Surfer software. The interpretation results show that the resistivity value, depth and thickness vary as well as the existence of 2 - 5 layers as the geological structure and characteristics of the local lithology with a resistivity value of 2 - 19 Ω.m is groundwater, resistivity value of 19 - 30 Ω.m clay flake, resistivity value of 30 - 70 Ω.m clay, resistivity value of 70 - 100 Ω.m top soil and resistivity value of 100 - 150 Ω.m sandy gravel. Shallow aquifers are estimated to be at a depth of < 20 m, while the deep aquifers are located at > 25 m below the surface and have a thickness of 2 to 78.5 m. 
Co-Authors Halauddin Halauddin Halauddin Intan Gayatriani Marven Saputra Refrizon Refrizon Refrizon Suhendra Suhendra Suhendra Usman Gumanty