Author/Authors :
YILDIRIM, Mustafa Yıldız Teknik Üniversitesi - İnşaat Fakültesi - İnşaat Mühendisliği Bölümü, Turkey , AKGÜNER, Cem Yıldız Teknik Üniversitesi - İnşaat Fakültesi - İnşaat Mühendisliği Bölümü, Turkey , TONAROĞLU, Murat Yıldız Teknik Üniversitesi - İnşaat Fakültesi - İnşaat Mühendisliği Bölümu, Turkey , SELÇUK, Murat E. Yıldız Teknik Üniversitesi - İnşaat Fakültesi - İnşaat Mühendisliği Bölümü, Turkey
Title Of Article :
A NEW STRATIGRAPHY OF ISTANBUL TERTIARY DEPOSITS AND THEIR ENGINEERING PROPERTIES
Abstract :
For over 50 years, the Upper Oligocene – Upper Miocene sedimentary sequence in Istanbul has been thought to be composed of two distinct sequences with an unconformity in between and mapped accordingly. Based on recent field observations and borehole data, it has been concluded that the Gürpınar, Çukurçeşme and Güngören Formations actually constitute a single sequence, named Avcılar Formation, since they are composed of regularly alternating clay-sand/sandstone beds and lenses. The Bakırköy Formation, which is typically composed of carbonate rocks, conformably overlies the Avcılar Formation. Adopting this new stratigraphy eliminates the confusion in selecting suitable geotechnical and engineering geological parameters representing the formations in question and, thus, helps in preventing errors in overall interpretation of site conditions.
NaturalLanguageKeyword :
Tertiary deposits , shear wave velocity , Istanbul , stratigraphy , mapping , Avcılar formation
JournalTitle :
Sigma Journal Of Engineering and Natural Sciences
