Age, composition and paleoenvironmental significance of a Late Pleistocene eolianite from the western Black Sea coast of Turkey
Yükleniyor...
Dosyalar
Tarih
2013-05-16
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pergamon-Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
On the basis of field observations, thin section interpretations, microanalytical data, electrical resistivity survey and luminescence dating, the age, composition and internal structure of coastal eolianite on the west Black Sea coast at Sile, Istanbul, was studied for a combined interpretation of dune rock development and facies characteristics. Results demonstrate that the eolianite is made up of south-dipping, large-scale dune stratification, consisting mainly of quartz sand and, in particular, abundant ooids, as well as the binding cement which is composed of calcite and aragonite. Based on Electrical Resistivity Tomography (ERT) images, the eolianite has a thickness of between 3.5 m and 8 m and overlies a buried rugged topography that has developed on the Pliocene unit. This suggests the predominance of northerly winds that account for the landward removal of dune sands by offshore wind drift prior to carbonate cementation. Optically Stimulated Luminescence (OSL) dating estimations revealed that the initial deposition of the laminated eolianite layers on the underlying older unit took place at 138.57 +/- 13.65 ka, matching the Karangatian highstand or Marine Isotope Stage (MIS) 5e.
Açıklama
Anahtar Kelimeler
Level highstands, Marmara region, Single-Aliquot, Island, Bahamas, Quartz
Kaynak
Quaternary International
WoS Q Değeri
Q3
Scopus Q Değeri
Q1
Cilt
296
Sayı
Künye
Erginal, A. E., Güneç Kıyak, N., Ekinci, Y. L., Demirci, A., Ertek, A. & Canel, T. (2013). Age, composition and paleoenvironmental significance of a late pleistocene eolianite from the western black sea coast of turkey. Quaternary International, 296, 168-175. doi:10.1016/j.quaint.2012.04.031
