Biostratigraphy of the Paratethyan Neogene at Yalova (Izmit-Province, NW-Turkey)
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Tarih
2006
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Gebruder Borntraeger
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Two main palaeoenvironments are reconstructed for the Paratethyan deposits at Yalova (Turkey). The investigated sections show the typical lithologic composition of the Neogene of NW Turkey, however, the palaeoecological context was so far unknown and the stratigraphic differentiation was still outstanding. In this study, molluscs, ostracods and fish remains are used as tools for the interpretations of the palaeoenvironmental situation. These biota reflect palaeoenvironments, represented by (1) the clastic section of the Kilic Formation and (2) the Yalakdere Formation, which is characterized by marl, clay and coal sedimentation. While the Kilic Formation comprises sediments of fluviatile deltaic systems, connected to lagoons with partly reduced water energy, the Yalakdere Formation exemplifies freshwater habitat, including stagnant water bodies with a seasonally slightly varying salinity and, at most, moderately flowing rivers. The investigated biota indicate a Late Miocene age of both the Kilic and the Yalakdere Formation. Some species furthermore allow a more detailed stratigraphic assignment: the Yalakdere Formation corresponds to the Late Khersonian/Early Maeotian. Comparisons with contemporaneous faunas indicate connections to the Dacian, Euxinian and Caspian Basins and a weak Mediterranean influence. No occurrences of Central Paratethyan elements of the corresponding Late Pannonian time interval are evident.
Açıklama
Anahtar Kelimeler
Geological Evolution, Pontides
Kaynak
Newsletters on Stratigraphy
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
42
Sayı
1
