PALEOGENE BENTONIC FORAMINIFERS OF NAMRUN (İÇEL) AREA

Yıl 1992, Cilt: 114 Sayı: 114, 82 - 82, 01.07.1992

Niyazi Avşar

Öz

Systematic descriptions of
the benthonic foraminifers of the Paleogene sediments around Namrun (İçel) area
have been investigated and general stratigraphical records of the area have been
given. The rock units of Upper Cretaceous, Paleogene and Neogene ages crop out in
the study area. Upper Cretaceous sequence comprises ophiolitic materials which includes
radiolarite, limestone blocks and flysch. Upper Pateocene (llerdian) sequence
discordantly overlies the Upper Cretaceous unit, and it is composed of sandstone,
marl and sandy-dayey limestones. The sandy-clayey limestones contain species of
the foraminifera such as Alveolina subpyrenaica Leymerie, Alveolina
moussoulensis Hottinger and Alveolina varians Hottinger. Lower Eocene (Cuisian)
sediments conformably overlie the llerdian, and it is composed of sandstone, marl
and clayey limestones. The clayey limestones of the Cuisian sequence comprise foraminifers
such as Alveolina cf. levantina Hottinger. Alveolina cf. violea Checchia-Rispoli.
Alveolina multicanalifera Drobne, Nummulites globulus Leymerie, Nummulites
partschi de la Harpe. Nummulites burdigalensis (de la Harpe). Lockhartia
conditi (Nuttall), and Lockhartia hunt Ovey. Middle Eocene (Lutetian) sequence overlies
conformably tha Cuisian sediments, and it is composed of dayey limestones which
are soiled white, yellow and cream colored, and well bedded. In addition, the Lutetian
sediments are represented by Alveolina tenuis Hottinger, Alveolina frumentiformis
Schwager, Alveolina stipes Hottinger, Alveolina munieri Hottinger, Nummulites
uranensis (de la Harpe), Nummulites lehneri Schaub, Assilina exponens (Sowerby),
and Sphzerogypsina globulus (Reuss). The Lutetian sequence is discordantly overlain
by the Neogene dayey limestone and conglomerates.

 

Anahtar Kelimeler

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Kaynakça

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