TY - JOUR T1 - The Mesozoic Stratigraphy and Ammonite Faune for Niksar-Erbaa (Tokat) Territory TT - The Mesozoic Stratigraphy and Ammonite Faune for Niksar-Erbaa (Tokat) Territory AU - Toprak, Özlem PY - 2018 DA - December Y2 - 2018 JF - International Scientific and Vocational Studies Journal JO - ISVOS PB - Umut SARAY WT - DergiPark SN - 2618-5938 SP - 86 EP - 92 VL - 2 IS - 2 LA - tr AB - The basement of the study territory covering theNiksar-Erbaa territories and their immediate vicinity, located on the north andabove the North Anatolian Fault, forms the rocks belonging to Permo-Triassicaged Karakaya Complex . The Mesozoic units forming the primary cover rocks inthe region consist of the Upper Jurassic-Lower Cretaceous aged Titonic faciesdeveloped Calpionelli limestones, Upper Cretaceous aged tuffs and rugged rocks.Mesozoic formations begin with Liassic sandstones, mudstones and limestones,which come transgressively with angular unconformity over the basement rocks.The Tertiary-Berriyan aged units with titanic facies bearing the ages ofCenomanian-Maestrichtian aged units started with agglomerates andreddish-colored, firmly adherent conglomerates. Upper Cretaceous unitscontinuing with carbonate-cemented polygenic sandstones, variegated coloredcarbonate marl-mudstone plies and their partially metamorphosed derivatives andrecrystallized limestones are terminated by sandstone-marl-limestoneintercalations, including volcanic intercalations developed inbasaltic-andesitic dykes . In the pelagic mudstones belonging to the unit, Pentacirinussp. and Belemnit fossils have been also identified in addition to such Ammonites sp., Phylloceras sp., Oxyceritessp., Sphaeroceras sp., Ausseites sp.. It is unconformablyoverlain by shallow marine units consisting of limestones andlimestone-sandstone alternations of Paleocene-Lower Eocene aged Nummuliticlimestones forming the second cover units of the area. In the neotectonicperiod, sedimentary rocks of Pliocene aged are deposited in the sedimentaryareas formed by the formation and development of the North Anatolian Fault. Theyoungest units of the region are the Pleistocene aged young basalt formationsand Quaternary aged alluvium, slope rubble and accumulation cones. KW - Niksar-Erbaa KW - Stratigraphy KW - Biostratigraphy KW - Ammonodia N2 - The basement of the study territory covering theNiksar-Erbaa territories and their immediate vicinity, located on the north andabove the North Anatolian Fault, forms the rocks belonging to Permo-Triassicaged Karakaya Complex . The Mesozoic units forming the primary cover rocks inthe region consist of the Upper Jurassic-Lower Cretaceous aged Titonic faciesdeveloped Calpionelli limestones, Upper Cretaceous aged tuffs and rugged rocks.Mesozoic formations begin with Liassic sandstones, mudstones and limestones,which come transgressively with angular unconformity over the basement rocks.The Tertiary-Berriyan aged units with titanic facies bearing the ages ofCenomanian-Maestrichtian aged units started with agglomerates andreddish-colored, firmly adherent conglomerates. Upper Cretaceous unitscontinuing with carbonate-cemented polygenic sandstones, variegated coloredcarbonate marl-mudstone plies and their partially metamorphosed derivatives andrecrystallized limestones are terminated by sandstone-marl-limestoneintercalations, including volcanic intercalations developed inbasaltic-andesitic dykes . In the pelagic mudstones belonging to the unit, Pentacirinussp. and Belemnit fossils have been also identified in addition to such Ammonites sp., Phylloceras sp., Oxyceritessp., Sphaeroceras sp., Ausseites sp.. It is unconformablyoverlain by shallow marine units consisting of limestones andlimestone-sandstone alternations of Paleocene-Lower Eocene aged Nummuliticlimestones forming the second cover units of the area. In the neotectonicperiod, sedimentary rocks of Pliocene aged are deposited in the sedimentaryareas formed by the formation and development of the North Anatolian Fault. Theyoungest units of the region are the Pleistocene aged young basalt formationsand Quaternary aged alluvium, slope rubble and accumulation cones. CR - [1] Arpat, E. ve Şaroğlu, F. “Türkiye’deki bazı önemli genç tektonik olaylar”. Türkiye Jeoloji Kurumu Bülteni, 18(1), 91-10, 1975.[2] Akyazı, M. ve Tunç, M. “Zile (Tokat) Yöresinin Stratigrafisi”. TJK Bülteni, C. 35/2. s.36-42, 1992.[3]Akyazı, M. “Erbaa Metropolitan Jeolojisi.” Kelkit Havzası Araştırmalar Merkezi Raporu. Rapor no: 2. s.68, 2007a.[4] Akyazı, M. “Niksar Metropolitan Jeolojisi.” Kelkit Havzası Araştırmalar Merkezi Raporu. Rapor no: 3. s.98, 2007b.[5] Akyazı, M., “Orta Pontidlerde yüzeyleyen örtü birimlerinin stratigrafisi”. Cumhuriyet Üniversitesi Bilimsel Araştırma Projeleri. Proje no: 447 (Yayımlanmamış), 2013.[6] Akyazı, M., “Reşadite (Tokat) kuzeyinde yüzeyleyen birimlerin Üst Mesozoyik stratigrafisi”. Cumhuriyet Üniversitesi Bilimsel Araştırma Projeleri. Proje no: 643 (Yayımlanmamış), 2016.[7] Akyazı, M., “Kuzey Anadolu Mesozoyik yüzleklerinin karşılaştırmalı stratigrafisi ve Ammonitler”. Cumhuriyet Üniversitesi Bilimsel Araştırma Projeleri. Proje no: 643 (Yayımlanmamış), 2017.[8] Alp, D. “Amasya yöresinin jeolojisi”. İ.Ü. Fen Fakültesi Monografileri, Sayı; 22, s, 10,1992.[9] Barka A., “Slip distribution along the North Anatolian Fault associated with the large earthquakes of the period” 1939 to 1967. Bull. Seismol. Soc. Am., 86, 1238–1254, 1996.[10] Baykal, F.” Zile-Tokat-Yıldızeli bölgesinin jeolojisi”. İ.Ü. Fen Fakültesi Mecmuası, Seri B, c.XII, sayı: 3, s.19,1947.[11] Blumenthal, M.. “Beitragezur géologie der land schaften am miitelcrenundunteren” Yeşilırmak. MTA, yayınları seri. D. No. 4, s. 183, 1950. [12] İnan, N. ve Temiz, H., “ (Tokat) yöresinde Kretase-Tersiyer geçişinin litostratigraafik ve biyostratigrafk özellikleri”. TJK Bülteni, C.35-1, s.39-47, 1992.[13] İnan, N. ve Engin, M., “Karaçam Yaylası (Niksar-Tokat), Simplorbitespapyraceus (Boubee) örneklerinde anormal bir aseksüel çoğalma fazı”. TJK Bülteni, s.10, s.25-33, 1995.[14] Tatar, O., Kavak, K.Ş.,Polat,A., Gürsoy, H.,Koçbulut,F., Sezen, T.F., Mesci, L., Akpınar, Z.ve Kiratik, L.O. “Kuzey Anadolu Fay Zonu-1942 Erbaa-Niksar depremi yüzey kırığı yeni gözlemler”. ATAG10 -Aktif Tektonik Araştırma Grubu 10. Toplantısı, 2006.[15] Tatar, O., Yurtmen, S., Temiz, H., Gürsoy, H., Koçbulut, F., Mesci, B.L. and Guezou, J.C.”Intracontinental Quaternaryvolcanism in the Niksar pull-apart basin, North Anatolian Fault Zone”, Turkey. Turkish Journal of Earth Sciences, 16, p.417-440, 2007.[16] Terlemez, H.l.Ç. ve Yılmaz, A., “ Ünye, Ordu, Koyulhisar, Reşadiye arasında kalan yörenin stratigrafisi”: Türkiye Jeo. l Bült, 23/2, 179-193,1980.[17]Toprak, Ö., “Batı-Orta Karadeniz de yüzeyleyen Jura-Kretaseyaşlı kireçtaşlarının biyostratigrafisi”. Cumhuriyet Üniversitesi. Doktora Tezi (yayımlanmamış), 2014. UR - https://dergipark.org.tr/tr/pub/bilmes/issue//489891 L1 - https://dergipark.org.tr/tr/download/article-file/614939 ER -