Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

Yazarlar: Ayşegül GÜNEY, Ali GÜREL, Fatma DÜNDAR TÜRK

Konular:Mühendislik

DOI:10.28948/ngumuh.502071

Anahtar Kelimeler:Diatomite,Late Miocene-Pliocene,Nevşehir,Palaeoenvironment,Taşkınpaşa

Özet: Twenty-one diatom species of 18 genera were identified from the samples which were collected from stratigraphic section in Taşkınpaşa (Nevşehir) area which is taken places in late Miocene-Pliocene aged volcanosedimentary units. It was determined that pennate forms are more abundant than centric forms within the defined species and the lake water has fresh water properties in this location. As a result of  the quantitative evaluation of the identified diatom genera and species distributions in the collected samples; it have been determined that, in Taşkınpaşa area, during the formation of the diatomite deposits, lake water’s level was low, the bottom of the lake was initially muddy later covered with plants, lake water was initially in oligotrophic properties later changed into eutrophic and mesotrophic characteristics in time, the nutrient ratio of lake water was high in bottom and upper levels of the section but it was moderate at the middle level of the section. The lake water indicates alkaline (pH >7) properties. Oxygen ratio of the lake water was in middle level.

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