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Journal : Tadulako Science and Technology Journal

Subsurface Fault Geometry Model Based on Type Resistance Data (Laboratory Scale Review) Yanto, M.F.W; Muin , M. R.; Th. Musa , Moh. Dahlan; Rusydi. H , M.; Sandra; Badaruddin
Tadulako Science and Technology Journal Vol. 1 No. 2 (2021): Tadulako Science and Technology Journal
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v1i2.17293

Abstract

Introduction: Research has been carried out with the title "Geometry of Fault Model Subsurface Based on Resistivity Data (Laboratory case)" with the aim of testing the effectiveness of the geoelectric method for identifying the geometry and direction of fault alignment, as well as knowing the geometry and direction of fault alignment based on resistivity data. Method: This research uses the Wenner configuration with azimuthal measurement techniques, totaling 24 electrode measurements. Data processing uses Res2dinv software release 3.53. Results and Discussion: The results obtained show the effectiveness of the geoelectric method in identifying fault-type obstacles, it is more appropriate to carry out measurements in parallel and perpendicular directions of the fault model. Conclusion: Then the fault geometry model obtained shows that the normal fault model has a resistivity value of 309 - 2254.26 Ωm and the thrust fault model has a resistivity value of 100 - 467.26 Ωm which is the resistivity value of granite, where this layer is a model of the fault.
Determination Of Liquefaction Sediment Volume In Balaroa VillageUsing The Geoelectric Resistance Type Method Asgar; M. Rusydi; Rustan Efendi; Moh. Dahlan Th Musa; Badaruddin
Tadulako Science and Technology Journal Vol. 2 No. 2 (2022): Tadulako Science and Technology Journal
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v2i2.17299

Abstract

Introduction: Research has been carried out titled "Determining the Volume of Liquefaction Sediment Using the Geoelectric Resistivity Type Method in Balaroa Village". Methods: This research aims to identify subsurface lithology and determine the volume of liquefaction sediment in Balaroa Village. This research uses the resistivity method Wenner configuration. Result and Discussion: Measurements were carried out in 4 passes with the distance between electrodes on Tracks 1 - 3 being 7 m and on Track 4 a distance of 10 m. From the results of measurements and data interpretation, it was obtained that the type resistance value was 2.98 - 436.14 Ωm with lithology in the form of clay, sand, and gravel. The calculated volume of liquefaction sediment in Balaroa Village is 370,883 m³. Conclusion: Clay and sand rocks are liquefaction sediments with resistance values of less than 67.86 Ωm. Meanwhile, gravel and building debris are non-liquefaction rocks with resistance values of more than 67.86 Ωm. The calculated liquefaction sediment in Balaroa Village is around 370,883 m³. The volume of liquefaction sediment increases in thickness in the eastern part, which is caused by morphological conditions that tend to be more gentle in that part.