Resistivity tomography and borehole data analysis in the detection of Pre-Holocene relief in Pireaus city, Greece

Apostolopoulos, G; Pavlopoulos, K; Mavrommatis, D; Fouache, E

dc.contributor.author	Apostolopoulos, G	en
dc.contributor.author	Pavlopoulos, K	en
dc.contributor.author	Mavrommatis, D	en
dc.contributor.author	Fouache, E	en
dc.date.accessioned	2014-03-01T02:51:47Z
dc.date.available	2014-03-01T02:51:47Z
dc.date.issued	2008	en
dc.identifier.issn	10523812	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35654
dc.subject	Electrical/resistivity	en
dc.subject	Engineering	en
dc.subject	Environmental	en
dc.subject	Europe	en
dc.title	Resistivity tomography and borehole data analysis in the detection of Pre-Holocene relief in Pireaus city, Greece	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1190/1.3059141	en
heal.identifier.secondary	http://dx.doi.org/10.1190/1.3059141	en
heal.publicationDate	2008	en
heal.abstract	The detection of pre-Holocene paleo-relief gives vital information on the landscape's evolution and the thickness of loose Holocene sediments in the city of Piraeus and neighboring township of Neo Faliro in Greece. For that purpose, borehole and geophysical data have been analyzed with the collaboration of geomorphologists and geophysicists. Electrical resistivity tomography (ERT) sections and boreholes have detected formations of various grain size, permeability and compaction. The results have shown that there is a depression between the Piraeus peninsula and Neo Faliro, shallow at the western part, and deeper at the east-southeastern region of the study area. Three main litho-stratigraphic units were also detected. The oldest and deepest was unit 3 which consisted of Pre-Holocene deposits of Marls, marly limestones, sandstones and conglomerates dating to the Pliocene-Pleistocene age. The upper region of unit 2 consisted of loose Holocene sediments of sand (with the latter corresponding to marine, lagoonal and fluvial depositional environments). Unit 1 was the youngest one, consisting of colluvial deposits, archaeological strata and human deposits (rambles). ERT profiles, even in coastal, very conductive environments in cities, can provide useful information to the geomorphologists.	en
heal.journalName	SEG Technical Program Expanded Abstracts	en
dc.identifier.doi	10.1190/1.3059141	en
dc.identifier.volume	27	en
dc.identifier.issue	1	en
dc.identifier.spage	1243	en
dc.identifier.epage	1247	en