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Journal : Jurnal Fisika Unand

Litologi Daerah Rawan Banjir Di Desa Batik Nau Dengan Menggunakan Metode Vertical Electric Sounding (VES) Barasa, Habel; Suhendra, Suhendra; Gustan, Nesti Fazeza; Halauddin, Halauddin
Jurnal Fisika Unand Vol 14 No 2 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.2.117-123.2025

Abstract

This study was conducted to determine the type of rock lithology in Batik Nau village to see its effect on flooding during the rainy season. The study was conducted using the Schlumberger Configuration with the Vertical Electrical Sounding (VES) method at 30 sounding points. VES data collection in this study used the X612-EM MULTI-CHANNEL RESISTIVIMETER. Furthermore, to obtain a 1D log image, Progress 3.0 software was used and then analyzed to be interpreted against the geological map of the research area. The rock porosity value was obtained using the Achi formula using Microsoft Excel software. The results of the interpretation that most of the Batik Nau Village area is dominated by Clay and Napal rocks, both rocks have very low average porosity values ​​so that they are saturated with water. Rock lithology that cannot absorb water perfectly or is in a state of saturation makes this area prone to flooding during the rainy season.
Identification of Abrasion-Prone Areas Based on Vertical Electrical Sounding at Geotourism Beach Pasar Bawah South Bengkulu Kamila, Nur Husniatin; Suhendra, Suhendra; Halauddin, Halauddin; Ulandari, Clora; Hasugian, Basdiki; Al Akbar, M Riski; Raihana, Hana; Al Ansory, Andre Rahmat
Jurnal Fisika Unand Vol 14 No 6 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.6.569-576.2025

Abstract

This research was conducted to investigate abrasion-prone areas using the Vertical Electrical Sounding (VES) method at Pasar Bawah Manna Beach, South Bengkulu Regency. Data collection using a track length of 200 with the MAE X612-EM geoelectric tool that runs along the abrasion-prone area. Data processing using IP2WIN software and satellite images. This study aims to determine the subsurface of abrasion-prone areas and rock characteristics of abrasion. The results of this study indicate that the research location has seawater ntrusion that seeps into the aquifer with a resistivity value of (0.763 - 8.01 Ωm) and the rock formation of the research area is dominated by alluvium rocks including gravel (130 - 356. 2 Ωm), clay (14.65 Ωm), silt (16.5 -61.41 Ωm), sand (258 - 313 Ωm), sandstone (97.6 Ωm), passive gravel (1496 Ωm), and limestone (2560 Ωm). Based on satellite image data, abrasion-prone is identified from several points in the study area that have significant shoreline changes at sounding point 1 where the point from 2008 to 2023 shows that abrasion has occurred quite significantly over the past 15 years, where at Sounding point 1 abrasion occurs along ± 23 meters / year. The findings of this research are expected to provide knowledge about disaster mitigation in sustainable tourism governance.