THE LITHOLOGY OF FLOOD PRONE AREAS USING THE VERTICAL ELECTRICAL SOUNDING (VES) METHOD
Authors
Jesika Erni ELfrita Sinaga , Geri Budianto , Vinki Loverly Pritama , Suhendra SuhendraDOI:
10.29303/ipr.v6i1.209Published:
2023-01-20Issue:
Vol. 6 No. 1 (2023)Keywords:
The lithology of flood-prone areas; VES; Resistivity; SchlumbergerArticles
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Abstract
Rock lithology modeling of flood-prone areas has been carried out using the Vertical Electrical Sounding (VES) method in Rawa Makmur village, Bengkulu city. Field data acquisition using a stretch length of 160 with the MAE X612-EM Geoelectric tool forming a straight line. VES method, using Excel software for resistivity variations with depth and Progress lithology modeling. This research aims to determine the subsurface condition of flood-prone areas and the characteristics of rocks that make up flood-prone areas. The results of this study can be concluded that the Rawa Makmur village is dominated by sand (0,2-50 Ωm), silty sand (1-35 Ωm), gravel sand (20-150 Ωm) and clay (65-250 Ωm) at several points. VES 1, VES 2, VES 3, VES 4, VES 5, VES 8, and VES 9 have a shallow water table of 1-10 meters, close to the Rawa Makmur river and have a rock structure that is saturated with water so that it cannot absorb moisture on the surface and becomes a flood puddle. The characteristics of rocks that make up flood-prone areas are porous stones such as sand and gravel saturated with water. Sites that are not prone to flooding in the Rawa Makmur village at points VES 6 and VES 7 are dominated by the rock structure of sand (20-65 Ωm), gravel sand (100-200 Ωm), and dry gravel (100-1000 Ωm).References
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Author Biographies
Jesika Erni ELfrita Sinaga, Geophysics Department, Faculty of Mathematics and Natural Science, University of Bengkulu, Indonesia
Geri Budianto, Geophysics Department, Faculty of Mathematics and Natural Science, University of Bengkulu, Indonesia
Vinki Loverly Pritama, Geophysics Department, Faculty of Mathematics and Natural Science, University of Bengkulu, Indonesia
Suhendra Suhendra, Geophysics Department, Faculty of Mathematics and Natural Science, University of Bengkulu, Indonesia
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