Palynological Analysis of Neogene Mammal Sites of Turkey - Vegetational and Climatic Implications

Öz

Anahtar Kelimeler

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Türkiye'de Neojen Memeli Bulgu Yerlerinden Palinolojik Analizler - Vejetasyonel ve İklimsel Çıkarımlar

Öz

Türkiye’nin orta ve batı kısımlarından memeli fauna ile yaşlandırılmış gölsel sedimanların palinolojik analizleri yapılmıştır. İncelenen örneklerin stratigrafik diziliminde birlikte bulundukları memeli fosillerinin evrimi temel alınmıştır. Erken Erken Miyosen polen topluluğu, Engelhardia gibi mega-mezotermik elemanlarca zengin bir floranın varlığına işaret etmektedir ve bu flora yarıtropikal bir iklimi yansıtmaktadır. Geç Erken Miyosende mega-mezotermik elemanların azalması sıcaklıkta çok az bir düşüş olduğunu göstermektedir. Orta Miyosende nemli ılıman bir iklimi yansıtan Quercus, Engelhardia, Zelkova, Parrotia persica, Alnus, Cedrus ve Pinus bitkilerince zengin bir karışık orman florası tanımlanmıştır. Mezotermik elemanlardaki azalma ya da yok oluş Geç Miyosende muhtemel bir iklimsel bozulmaya işaet etmektedir. Geç Miyosen florası başat bitkinin Asteraceae olduğu açık alanların yaygın olduğunu yansıtmaktadır. Pliyosen ve Pleyistosen palinofloraları nemli-ılıman iklim koşullarında gelişmiş Asteraceae, Amaranthaceae/Chenopodiaceae gibi otsul bitkiler ve çam ağaçlarınca (Pinus, Tsuga, Cedrus, Abies) zengindir. Yapılan paleoiklimsel yorumlar aynı lokasyonlardan tanımlanmış olan memeli faunaları ile de desteklenmektedir

Anahtar Kelimeler

• MN zonları, Neojen, polen, Türkiye, vejetasyon, iklim

Kaynakça

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