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Upper Cretaceous-Middle Eocene Aged Olistrostromal Pelagic Units In The Biga Peninsula (Nw Anatolia); Balıkkaya Formation, Serdar Akgündüz, İzver Özkar Öngen
Upper Cretaceous-Middle Eocene Aged Olistrostromal Pelagic Units In The Biga Peninsula (Nw Anatolia); Balıkkaya Formation, Serdar Akgündüz, İzver Özkar Öngen
Bulletin of the Mineral Research and Exploration
Balıkkaya formation consists of olistostromal units with a burgundy coloured mudstone, siltstone and pelagic limestone matrix containing various sizes of UpperJurassic-Lower Cretaceous limestone (Bilecik Limestone) blocks and Triassic Karakaya Complex blocks, which crop out in the west, south and southwest of Biga Town in Biga Peninsula (NW Anatolia). The matrix of Balıkkaya formation, of which age and sedimentary environment are controversial, contains Late Cretaceous (Maastrichtian) Abathomphalus mayaroensis (Bolli), Abathomphalus sp., Rosita fornicata (Plummer), Globotruncanidae, early Paleocene (Danian) Morozovella pseudobulloides (Plummer), late Paleocene (Thanetian) Morozovella velascoensis (Bolli), early Eocene Acarinina pentacamarata (Subbotina), middle Eocene Turborotalia frontosa (Subbotina), Turborotalia cerroazulensis (Cole), Orbulinoides …