Electromagnetic Resistivity Profiling For Locating Buried River Channels: A Case Study In Haiti |
| |
| Authors: | Frank Radstake |
| |
| Institution: | (1) c/o IWACO, P.O. Box 8520, 3009 AM Rotterdam, The Netherlands, NL |
| |
| Abstract: | The Service National des Ressources en Eau (SNRE) of the Ministry of Agriculture of Haiti, in cooperation with the UNDTCD, carried out a geophysical investigation in the Northern Plain of Haiti. It included a reinterpretation of the available resistivity soundings and the realization of eight additional soundings and 11 electromagnetic profiles. The mathematical interpretation of the soundings permitted the determination of the true resistivity of different lithologies present in the area and the mapping of the thickness of the alluvial aquifer. The results of the five electromagnetic resistivity profiles in the Trou du Nord area are presented, with a total lenght of 17.4 km. They show distinctive resistivity anomalies, which are assumed to represent buried river channels filled with coarse sands and gravels. One of the anomaly zones was explored in more detail and shows clearly lateral resistivity differences at greater depths. The data interpretations have been checked through response calculations of geoelectrical layer models. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
