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Near surface electrical resistivity structures around an active fault tracein Weh Island, Indonesia |
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| รหัสดีโอไอ | |
| Creator | 1. Nanda Muhammad 2. Rizal Syamsul 3. Abdullah Faisal 4. Idroes Rinaldi 5. Ismail Nazli |
| Title | Near surface electrical resistivity structures around an active fault tracein Weh Island, Indonesia |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2564 |
| Journal Title | Songklanakarin Journal of Science and Technology (SJST) |
| Journal Vol. | 43 |
| Journal No. | 4 |
| Page no. | 1152-1159 |
| Keyword | shallow structure, rapture, Seulimeum Segment, Great Sumatran Fault, paleo-seismic |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | Near-surface investigation has been carried out in Cot Abeuk, Weh Island, Indonesia. The area is part of theSeulimeum segment active fault, the northernmost branch of the Great Sumatran Fault. We measured two parallel electricalresistivity tomography profiles on the area with the direction perpendicular to the fault strike. The length of profile 1 and profile2 are 111 m and 125 m, respectively, with 1 meter spacing between electrodes. Along the Profile 2, VLF-EM and Geomagneticdata were also acquired for complementary. The 2D inverted resistivity models show some minor fractures, which can be relatedto ruptures in the past. The structure was made by weathering rocks, clay and andesite. The models align with the analytic signalof total magnetic field anomalies as well as in-phase, Fraser filter and conductivity model derived from VLM-EM data.Following the successful models, this location is a potential candidate for paleo-seismological excavation. |
