| Autor: |
A, Antony Ravindran, R, Sakthi Priya, S, Richard Abishek, J, Vinoth Kingston, A, Antony Alosanai Promilton, R, Abinaya |
| Zdroj: |
Marine Geophysical Research; Sep2024, Vol. 45 Issue 3, p1-9, 9p |
| Abstrakt: |
The subsurface soil and rock characteristics in the Colachel Harbor area are investigated in this study utilizing resistivity and magneto-telluric methods. The obtained data utilizing clay formation investigations and the Carbon Floating 2D Electrical Resistivity Tomography (ERT) method, which included CRM-500 AUTO-C equipment, multi-carbon floating electrodes, multicore cables, and a manually operated switching unit. Two 2D electrical resistivity imaging profiles were obtained utilizing the Wenner configuration, providing precise insights into subsurface lithology up to a depth of 300 m. High-wave impact on fractured rock fragments in Varkala sandstone resulted in clay soil layers at depths ranging from 2.52 m to 2.75 m. The findings demonstrate the effectiveness of 2D Electrical Resistivity Imaging (ERI) in identifying underlying soil and rock exposures, which is critical for harbor building and coastal management. Identifying an expanding clay layer resembling fine-grained silt and clay on the seafloor is crucial for understanding sediment transport and deposition mechanisms in the region. Implications point to the necessity for additional geotechnical evaluations and ongoing monitoring to ensure coastal infrastructure stability and sustainability. For thorough subsurface characterization, the combination of resistivity and magneto-telluric techniques works well, and the results provide useful information for coastal development plans in the future. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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