Upper Cretaceous-middle Eocene aged olistrostromal pelagic units in the Biga Peninsula (NW Anatolia); Balıkkaya formation

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...

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Main Authors: İzver Özkar Öngen, Serdar Akgündüz
Format: Article
Language:English
Published: General Directorate of Mineral Research and Exploration 2021-04-01
Series:Bulletin of the Mineral Research and Exploration
Subjects:
Online Access:https://dergipark.org.tr/tr/pub/bulletinofmre/issue/56453/719876
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author İzver Özkar Öngen
Serdar Akgündüz
author_facet İzver Özkar Öngen
Serdar Akgündüz
author_sort İzver Özkar Öngen
collection DOAJ
description 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 beckmanni (Saito), Hantkenina sp. pelagic foraminifera and Radiolariafossils representing the deep marine environment. These paleontological, lithological and sedimentological data obtained from Balıkkaya formation show that Balıkkaya formation developed in a deep marine environment under tectonic control starting from Late Cretaceous and ending in early-middle Eocene. This pelagic unit indicates the presence of a extensional tectonic regime on the Biga Peninsula and the fault activity along the southeastern edge of the Thrace Basin in the Late Cretaceous-Middle Eocene time interval.
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spelling doaj.art-adb4fdb498da479bbdfe6e6cd487c6192023-02-15T16:19:18ZengGeneral Directorate of Mineral Research and ExplorationBulletin of the Mineral Research and Exploration0026-45632021-04-0116416411914510.19111/bulletinofmre.71987676Upper Cretaceous-middle Eocene aged olistrostromal pelagic units in the Biga Peninsula (NW Anatolia); Balıkkaya formationİzver Özkar Öngen0Serdar Akgündüz1İstanbul University-Cerrahpaşa, Faculty of Engineering, Department of Geological Engineering, İstanbul, Turkeyİstanbul University-Cerrahpaşa, Faculty of Engineering, Department of Geological Engineering, İstanbul, TurkeyBalıkkaya 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 beckmanni (Saito), Hantkenina sp. pelagic foraminifera and Radiolariafossils representing the deep marine environment. These paleontological, lithological and sedimentological data obtained from Balıkkaya formation show that Balıkkaya formation developed in a deep marine environment under tectonic control starting from Late Cretaceous and ending in early-middle Eocene. This pelagic unit indicates the presence of a extensional tectonic regime on the Biga Peninsula and the fault activity along the southeastern edge of the Thrace Basin in the Late Cretaceous-Middle Eocene time interval.https://dergipark.org.tr/tr/pub/bulletinofmre/issue/56453/719876balıkkaya formationbiga peninsulapelagic foraminiferalate cretaceous-middle eoceneextensional tectonic regime.
spellingShingle İzver Özkar Öngen
Serdar Akgündüz
Upper Cretaceous-middle Eocene aged olistrostromal pelagic units in the Biga Peninsula (NW Anatolia); Balıkkaya formation
Bulletin of the Mineral Research and Exploration
balıkkaya formation
biga peninsula
pelagic foraminifera
late cretaceous-middle eocene
extensional tectonic regime.
title Upper Cretaceous-middle Eocene aged olistrostromal pelagic units in the Biga Peninsula (NW Anatolia); Balıkkaya formation
title_full Upper Cretaceous-middle Eocene aged olistrostromal pelagic units in the Biga Peninsula (NW Anatolia); Balıkkaya formation
title_fullStr Upper Cretaceous-middle Eocene aged olistrostromal pelagic units in the Biga Peninsula (NW Anatolia); Balıkkaya formation
title_full_unstemmed Upper Cretaceous-middle Eocene aged olistrostromal pelagic units in the Biga Peninsula (NW Anatolia); Balıkkaya formation
title_short Upper Cretaceous-middle Eocene aged olistrostromal pelagic units in the Biga Peninsula (NW Anatolia); Balıkkaya formation
title_sort upper cretaceous middle eocene aged olistrostromal pelagic units in the biga peninsula nw anatolia balikkaya formation
topic balıkkaya formation
biga peninsula
pelagic foraminifera
late cretaceous-middle eocene
extensional tectonic regime.
url https://dergipark.org.tr/tr/pub/bulletinofmre/issue/56453/719876
work_keys_str_mv AT izverozkarongen uppercretaceousmiddleeoceneagedolistrostromalpelagicunitsinthebigapeninsulanwanatoliabalıkkayaformation
AT serdarakgunduz uppercretaceousmiddleeoceneagedolistrostromalpelagicunitsinthebigapeninsulanwanatoliabalıkkayaformation