Abstract
A geophysical investigation of a landfill area was conducted as inextricable phase of a preliminary geotechnical, geological and hydrogeological study of the area under investigation. Electrical resistivity tomography (ERT), one of the most promising prospecting techniques mainly concerning its effective contribution to resolve several environmental problems, was applied for the geophysical modeling. ERT is a robust imaging method the theory and implementation of which are well documented in geophysical research literature. The survey site is located in Akrotirion Peninsula, about 7 km east of Chania city in Crete I. The geological setting comprises Trypalion limestones, marly limestones and a clayed weathered layer. Cavities are also identified at various scales which are recent tectono-karstic voids. Due to the above-mentioned geological singularity and in the light of the requirement for an environmentally safe construction of the landfill, an ERT survey was carried out. Specifically, seven geoelectrical tomographies were conducted reaching the prospecting depth of 36 m. The resulted images conduced, to overcome geotechnical problems since the spatial distribution of karstic voids was determined, to plan the future sites for waste disposal as the geological conditions were studied in detail and to reliably estimate the thickness of the already deposited wastes. The resulted images were confirmed using available borehole logs and ambient noise measurements.
| Original language | English |
|---|---|
| Pages (from-to) | 1249-1261 |
| Number of pages | 13 |
| Journal | Environmental Geology |
| Volume | 51 |
| Issue number | 7 |
| DOIs | |
| State | Published - 2007 |
| Externally published | Yes |
Bibliographical note
Funding Information:Acknowledgments Financial support for this project was provided from the Operational Program for Education and Initial Vocational Training of the Ministry of Education of Greece (National Resources—25%) and the European Union (European Social Fund—75%) in the framework of the project Archimedes: ‘‘Support of Research Teams of Technological Educational Institute of Crete,’’ sub-project 2.6.6—MIS86455 entitled ‘‘Application of modern techniques in landfills.’’ We are also grateful to the students involved in the survey work: Evi Seferou and Panos Geor-gakopoulos and to Dr D. Marinakis and Dr Iraklis Karabatsakis for providing valuable information.
Keywords
- Cave detection
- Electrical tomography
- Environmental geophysics
- Landfills
ASJC Scopus subject areas
- Environmental Chemistry
- Water Science and Technology
- Pollution
- Soil Science
