Engineering-geological conditions of the formations in the Western Thessaly basin, Greece

Abstract

An engineering-geological map of the Western Thessaly basin has been compiled, providing a valuable guide to both urban planning and industrial development of the wider area. This map contributes significantly to the optimization of land use and improved planning of technical work. Additionally, the engineering-geological conditions of the formations encountered in the Western Thessaly basin are examined. The formations are grouped into thirteen (13) engineering-geological entities, with regard to their geotechnical behaviour. This entire study was based on both in situ investigations and geotechnical information extracted from 1,039 boreholes. Furthermore, a landslide inventory map of the Western Thessaly basin has been compiled. In addition, the surface subsidence ruptures, due to ground-water overexploitation, have been examined in the eastern part of the study area.

Neotectonic interpretations and PS-InSAR monitoring of crustal deformations in the Fujian area of China

“…Digitally enhanced remote sensing data helped to delineate spatial features because they can display many of the morphological characteristics of the earth's crust with better surface expression [34,35]. The images were useful in conclusively delineating the Quaternary structures of the study area, and prominent lineaments and fault traces were differentiated from various landforms, which are indicative of active tectonics.…”

Assessing Ground Subsidence Phenomena With Persistent Scatterer Interferometry Data in Western Thessaly, Greece

“…Regarding the narrow study area the main aquifer is located in the Quaternary deposits, constituting a system of unconfined shallow aquifers that extend through the upper layers and successive confined artesian aquifers developing in the deeper permeable layers (Apostolidis and Koukis, 2013). These systems are recharged mainly from the infiltration of the surface water but also through the lateral infiltration of the karstic aquifers that are developed in the carbonate formations that outcrop in the margins of the plain basin (Rozos et al, 2010).…”

“…The wider area of research is characterized by a great variety of geological formations. Specifically, the western Thessaly basin compromises of Mesozoic Alpine formations that belong to the Pelagonian, Sub-Pelagonian, Ultra-Pindic and Pindos geotectonic zone and post -Alpine deposits that are located in the lowland of the basin (Apostolidis and Koukis, 2013). The Mesozoic Alpine formations constitute the bedrock of the Quaternary deposits that appear in the wider area of Farsala.…”

“…Numerous studies have been contacted during the last decades in Greece concerning areas that experience ground subsidence phenomena especially due to aquifers over-exploitation. The Thessaly Plain is among the well-known areas in Greece presenting ground subsidence related to reservoir compaction with cases observed since the early 90's (Soulios, 1997;Kaplanidis and Fountoulis, 1997;Marinos et al, 1997;Salvi et al, 2004;Ganas et al, 2006;Apostolidis and Georgiou, 2007;Kontogianni et al, 2007;Rozos et al, 2010;Vassilopoulou et al, 2013;Apostolidis and Koukis, 2013;Modis and Sideri, 2015). According to Apostolidis and Georgiou (2007) and later confirmed by Rozos et al (2010), the over-exploitation of the groundwater resources activates the subsidence mechanism and subsequently leads to the evolution of surface deformations and raptures.…”

The risk of collapse in abandoned mine sites: the issue of data uncertainty

“…Because of unavailable or inaccurate information with respect to other natural risks [30][31][32][33] assessment of dismissed mines demands for approaches based on simplifying assumptions for the quanti cation of risk [34].…”