Eolianite and coquinite as evidence of MIS 6 and 5, NW Black Sea coast, Turkey

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Tarih

2017-04

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Elsevier B.V.

Erişim Hakkı

info:eu-repo/semantics/closedAccess

Araştırma projeleri

Organizasyon Birimleri

Dergi sayısı

Özet

This paper discusses the implications of a lowstand carbonate eolianite and overlying transgressive sequence of coquinite at Şile on the Turkish Black Sea coast based on composition, depositional characteristics and optical age estimations. The cross-bedded eolianite is a mixed ooid quartz grainstone in composition, yielding a depositional age matching MIS 6. It formed at the backshore of the paleobeach with the supply of sediment the from the beach face and offering insights into the drift of mixed shallow marine carbonates and siliciclastics together with radial ooids by onshore winds from a subaerially exposed high- to low-energy ooid shoals and oolitic sand complexes which developed parallel to the shoreline on the shallow shelf margin. During this lowstand, a low-relief dune retaining a record of opposing paleowind directions than that of prevalent northeasterly winds of today appears to have been lithified to form dune rock (aeolinite) under drier conditions compared to the present. Coinciding with MIS 5e, shallow marine coquina beds resting unconformably on the eolianite indicate the occurrence of the Mediterranean transgression during the last interglacial, as confirmed by benthic foraminifera within the high-salinity tolerant coquina shells.

Açıklama

Anahtar Kelimeler

Black Sea, Coquinite, Eolianite, Late Pleistocene, Sea level, Turkey, Regenerative-Dose protocol, Single-Aliquot, Cosmic-Ray, Level, Stratification, Luminescence, Aeolianites, Evolution, Events

Kaynak

Aeolian Research

WoS Q Değeri

Q2

Scopus Q Değeri

Q1

Cilt

25

Sayı

Künye

Demirci, A., Güneç Kıyak, N., Ekinci, Y. L., Öztürk, M. Z., Bozcu, M., Çakır, Ç., Öztürk, T. . . . & Karabıyıkoğlu, M. (2017). Eolianite and coquinite as evidence of MIS 6 and 5, NW black sea coast, turkey. Aeolian Research, 25, 1-9. doi:10.1016/j.aeolia.2017.01.004