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Near-surface geophysical investigation in Mae On,Chiang Mai, Thailand |
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| รหัสดีโอไอ | |
| Creator | 1. Siriporn Chaisri 2. Srivipa Lerkrattanawaree 3. Niti Mankhemthong 4. Suwimon Udphuay 5. Mingkhwan Kruachanta |
| Title | Near-surface geophysical investigation in Mae On,Chiang Mai, Thailand |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2563 |
| Journal Title | Songklanakarin Journal of Science and Technology |
| Journal Vol. | 42 |
| Journal No. | 6 |
| Page no. | 1326-1333 |
| Keyword | Mae On, seismic reflection, MASW, electrical resistivity, gravity model |
| URL Website | https://rdo.psu.ac.th/sjstweb/index.php |
| ISSN | 0125-3395 |
| Abstract | The objective of this study is to map a sedimentary layer overlying volcanic basement in Mae On area, Chiang Mai,Thailand. Seismic reflection, multichannel analysis of surface waves and electrical resistivity surveys were conducted to provideadditional supporting information in the shallow part of subsurface geometry. The deeper part information is evaluated from theprevious magnetic and gravity anomaly maps. The interpretation from seismic reflection is used to constrain gravity forwardmodeling to obtain a pseudo-geological model. The final model presents that there are a thin Quaternary sediment layer with lowelectrical resistivity and seismic velocity, overlies volcanic basement with high electrical resistivity and high seismic velocities.The volcanic basement can be recognized as a heterogeneous body with horizontally characteristic layers of volcanic flows basedon seismic reflection profiles. The volcanic basement underneath the sediment layer shows a high anomaly on gravity andmagnetic maps. |
