Eskişehir yöresi senozoyik stratigrafisi ve paleontolojisi

Abstract

ÖZET, ESKİŞEHİR YÖRESİ SENOZOVİK STRATİGRAFİSİ VE PALEONTOLOJİSİ Yüksek Lisans Tezi Aslı KARABAŞOĞLU Cumhuriyet Üniversitesi Fen Bitimleri Enstitüsü Jeoloji Mühendisliği Anabilim Dalı Danışman: Nazire ÖZGEN ERDEM Eskişehir güneyinde, sığ denizel fasiyeste gelişmiş, kumlu kireçtaşı ara düzeyleri içeren bol fosilli kireçtaşı, killi kireçtaşı ardalanması sunan Tanesiyen-Küiziyen yaşlı Hanköy formasyonu, Üst Triyas-Alt Paleosen yaşlı Çöğürler Karışığı üzerinde uyumsuz olarak yeralır. Havza, Miyosen'den itibaren karasallaşmış, aynı zamanda bölgede volkanik aktivite etkinleşmiştir. Hanköy formasyonu'nun Tanesiyen düzeylerinde İdalina sinjarica Grimsdale, Discocyclina seunesi Douville, Kathina seheri Smout, Alveolina (Glomalveolina) sp. ve Miscellanea sp.; İlerdiyen düzeylerinde İdalina sinjarica Grimsdale, Chrysalidina (Pfendericonus) kahleri Hottinger & Drobne, Alveolina (Glomalveolina) lepidula Schwager, Alveolina (Glomalveolina) subtilis Hottinger, Alveolina (Glomalveolina) karsica Sirel, Alveolina (Alveolina) ellipsoidalis Schwager, Alveolina (Alveolina) moussoulensis Hottinger, Alveolina (Alveolina) aragonensis Hottinger, Alveolina (Alveolina) laxd Hottinger, Alveolina (Alveolina) ilerdensis Hottinger, Alveolina (Alveolina) fornasini Checchıa-Rispoli, Alveolina (Alveolina) canavarii Checchıa- Rispoli, Alveolina (Alveolina) varians Hottinger, Alveolina (Alveolina) minervensis Hottinger, Alveolina (Alveolina) subpyrenica Leymerie, Alveolina (Alveolina) trempina Hottinger, Alveolina (Alveolina) dedolia Drobne, Alveolina (Alveolina) decipiens11 Schwager, Alveolina (Alveolina) pisella Drobne, Orbitolites complanatus Lamarck, Opertorbitolites gracilis Lehmann, Opertorbilolites latimarginalis Lehmann, Opertorbitolites ibericus Lehmann, Opertorbitolites biplanus Lehmann, Opertorbitolites transitorius Hottinger, Assilina dandotica Davies, Nummulites praecursor de la Harpe; KOiziyen düzeylerinde Alveolina (Glomalveolina) minutula Reichel, Alveolina (Alveolina) oblanga d'Orbigny, Alveolina (Alveolina) lehneri Hottinger, Alveolina (Alveolina) canavarii Checchia-Rispoli, Alveolina (Alveolina) ruetimeyeri Hottinger, Alveolina (Alveolina) fornasini Checchia-Rispoli, Orbitolites complanatus Lamarck, Opertorbitolites biplanus Lehmann, Opertorbitolites lehmanni Montanari, Opertorbitolites latimarginalis Lehmann, Assilina placentula Deshayes bentik foraminiferleri saptanmıştır. Anahtar kelimeler: Eskişehir, Seyitgazi, Stratigrafi, Paleontoloji, Bentik foraminifer, Tanesiyen, Küiziyen, Ilerdiyen

Ill ABSTRACT THE CENOZOIC STRATIGRAPHY AND PALEONTOLOGY OF ESKİŞEHİR REGION Thesis Ash KARABAŞO?LU Cumhuriyet University Graduate School of Natural and Applied Sciences Department of Geological Engineering Danışman: Nazire ÖZGEN ERDEM In the southern Eskişehir, The Thanetian-Cuisian aged Hanköy formation is represented abundant fossils, limestones, clayey limestones and sandy limestones interbedding evolved in the shallow marine facies. This unit unconfbrmably overlies The Upper Triassic-Lower Paleocene Çöğürler melange. A regressive sequence is present as from the Miocene in the basin. Besides, a volcanic activity dominated in region. Benthic foraminiferas such as Idalina sinjarica Grimsdale, Discocyclina seuneşi Douville, Kathina seheri Smouth, Alveolina (Glomalveolina) sp. and Miscellanea sp. in the Thanetian level; Idalina sinjarica Grimsdale, Chtysalidina (Pfendericonus) kahleri Hottinger & Drobne, Alveolina (Glomalveolina) lepidula Schwager, Alveolina (Glomalveolina) subtilis Hottinger, Alveolina (Glomalveolina) karsica Sirel, Alveolina (Alveolina) ellipsoidalis Schwager, Alveolina (Alveolina) moussoulensis Hottinger, Alveolina (Alveolina) aragonensis Hottinger, Alveolina (Alveolina) laxa Hottinger, Alveolina (Alveolina) ilerdensis Hottinger, Alveolina (Alveolina) fornasini Checchia- Rispoli, Alveolina (Alveolina) canavarii Checchia-Rispoli, Alveolina (Alveolina) varians Hottinger, Alveolina (Alveolina) minervensis Hottinger, Alveolina (Alveolina) subpyrenica Leymerie, Alveolina (Alveolina) trempina Hottinger, Alveolina (Alveolina) dedolia Drobne, Alveolina (Alveolina) decipiens Schwager, Alveolina (Alveolina)IV pisella Drobne, Orbitolites complanatus Lamarck, Opertorbitolites gracilis Lehmann, Opertorbitolites lalimarginalis Lehmann, Opertorbitolites ibericus Lehmann, Opertorbitolites biplanus Lehmann, Opertorbitolites transitorius Hottinger, Assilina dandotica Davies, Nummidites praecursor de la Harpe in the Ilerdian level; Alveolina (Glomalveolina) minutula Reichel, Alveolina (Alveolina) oblanga d'Orbigny, Alveolina (Alveolina) lehneri Hottinger, Alveolina (Alveolina) canavarii Checchia-Rispoli, Alveolina (Alveolina) ruetimeyeri Hottinger, Alveolina (Alveolina) fornasini Checchia- Rispoli, Orbitolites complanatus Lamarck, Opertorbitolites biplanus Lehmann, Opertorbitolites lehmanni Montanari, Opertorbitolites latimarginalis Lehmann, Assilina placentula Deshayes in the Cuisian level have been determined in the Hanköy formation. Key words: Eskişehir, Seyitgazi, Stratigraphy, Paleontology, Benthic foraminifera, Thanetian, Cuisian, Ilerdian