Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography

Okan, Yavuz; HOŞGÖR, İZZET

Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography

Yavuz OKAN, (Ankara Üniversitesi, Mühendislik Fakültesi, Jeoloji Mühendisliği Bölümü, Ankara, Türkiye)

İzzet HOŞGÖR (TransAtlantic Petroleum (Turkey) Corp., Ankara, Turkey)

Türkiye Jeoloji Bülteni

2 0

Yıl: 2009 Cilt: 52 Sayı: 1 Sayfa Aralığı: 1 - 30 Metin Dili: Türkçe İndeks Tarihi: 29-07-2022

Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography

Öz:

Orta Anadolu’da Çankırı Havzası’nda ilk defa Erken Eosen (orta-geç Küviziyen) mollusk birlikteliği tanımlanmıştır. Yoncalı Formasyonu’nun orta kesimlerinden alınan mollusklardan, altı bivalv türü, dört gastropod türü ve bir skapod türü tanımlanmıştır. Çalışılan birim harpactocarcinidler ile birlikte kumtaşı, pelajik çamurtaşı ve kireçtaşından oluşmuştur. Birimin yaşı bentik foraminiferlere dayanarak verilmiştir. Molluskların birlikte bulunduğu diğer fosil toplulukları ise bentik foraminiferler, serpulidler, tanımlanamamış ekinitler ve köpekbalığı dişleridir. Bivalv, gastropod ve skapodların dağılımları incelendiğinde, çalışma alanının paleocoğrafik yapılanmada Doğu Avrupa bölgesinin bir parçası olduğunu gösterir. Tetis Bölgesi ele alındığında Paleosen sonundan Erken Eosen’e kadar Tetis’in orta Anadolu ve Hint-Pasifik bölgesiylede bağlantılı olduğu bentik organizmaların yayılımyla ortaya çıkmaktadır.

Anahtar Kelime:

Konular: Jeoloji

Çankırı Havzası Yoncalı Formasyonu (Orta Anadolu) harpactocarcinid yatağında Erken Eosen (orta-geç Küviziyen) mollusk birlikteliği ve Tetis Paleocoğrafyasındaki yeri

Öz:

A diverse and abundant Early Eocene (middle-late Cuisian) molluscs assemblage from the Yoncalı Formation of the Çankırı Basin in central Anatolia is documented for the first time in this study. Six species of bivalves, four species of gastropods, and one species of scaphopod are described from the formation. The central part of the Yoncalı Formation consists mostly of sandstones, pelagic mudstone and limestones with harpactocarcinids and the molluscs found were derived from this part. Associated fauna found here included benthic foraminiferans, serpulids, undetermined echinoids and shark teeth, and dating was mainly based on the benthic foraminiferans. The distribution of bivalve, gastropod and scaphopod species suggest that this area has affinities with the East European Province of Turkey. The cosmopolitian distribution of the recorded species is useful for paleobiogeographic reconstruction. This reveals that there was a direct connection throughout the Tethyan realm and a connection between the Tethyan central Anatolia and Indo-Pasific realms, at least until the end of the Paleocene to Early Eocene (Early Tertiary), and this allowed the migration of benthic organisms.

Anahtar Kelime:

Konular: Jeoloji

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	Okan Y, HOŞGÖR İ (2009). Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography. , 1 - 30.
Chicago	Okan Yavuz,HOŞGÖR İZZET Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography. (2009): 1 - 30.
MLA	Okan Yavuz,HOŞGÖR İZZET Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography. , 2009, ss.1 - 30.
AMA	Okan Y,HOŞGÖR İ Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography. . 2009; 1 - 30.
Vancouver	Okan Y,HOŞGÖR İ Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography. . 2009; 1 - 30.
IEEE	Okan Y,HOŞGÖR İ "Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography." , ss.1 - 30, 2009.
ISNAD	Okan, Yavuz - HOŞGÖR, İZZET. "Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography". (2009), 1-30.

APA	Okan Y, HOŞGÖR İ (2009). Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography. Türkiye Jeoloji Bülteni, 52(1), 1 - 30.
Chicago	Okan Yavuz,HOŞGÖR İZZET Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography. Türkiye Jeoloji Bülteni 52, no.1 (2009): 1 - 30.
MLA	Okan Yavuz,HOŞGÖR İZZET Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography. Türkiye Jeoloji Bülteni, vol.52, no.1, 2009, ss.1 - 30.
AMA	Okan Y,HOŞGÖR İ Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography. Türkiye Jeoloji Bülteni. 2009; 52(1): 1 - 30.
Vancouver	Okan Y,HOŞGÖR İ Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography. Türkiye Jeoloji Bülteni. 2009; 52(1): 1 - 30.
IEEE	Okan Y,HOŞGÖR İ "Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography." Türkiye Jeoloji Bülteni, 52, ss.1 - 30, 2009.
ISNAD	Okan, Yavuz - HOŞGÖR, İZZET. "Early Eocene (middle-late Cuisian) molluscs assemblage from the harpactocarcinid beds, in the Yoncalı Formation of the Çankırı Basin, Central Anatolia, and implications for tethys paleogeography". Türkiye Jeoloji Bülteni 52/1 (2009), 1-30.