Stratigraphy, Sedimentology and Palynology of the Neogene-Pleistocene(?) Rocks Around Akcasehir-Tire-Izmir (Kucuk Menderes Graben, Western Anatolia)
| Autor: | İSMAİL İŞİNTEK, MEHMET SERKAN AKKİRAZ, METİN TAVLAN, TAHİR EMRE |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
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| Popis: | WOS: 000287418400002 The basement rocks located in the central part of the southern edge of the Kucuk Menderes Graben, around Akcasehir-Tire are composed of marbles, schists, gneisses and metagabbros of the Odemis-Kiraz submassif of the Menderes Massif, and schists, marbles and meta-olistostromes of the Cycladic Complex. The basement is unconformably overlain by Neogene-Quaternary continental sediments. These continental basin fills are comprised of the Ayaklikiri Formation, the Aydogdu Formation and alluvium that unconformably overlies them. The Lower-Upper Miocene Ayaklikiri Formation consists of lacustrine and fluvial deposits. The Plio-Pleistocene (?) Aydogdu Formation is made up of alluvial fan deposits. Vast plains of alluvium cover the youngest formations. The lowest part of the Ayaklikiri Formation is represented by terrestrial to very shallow lake environments, represented by silts, clays, laminated micritic carbonates, ostracod-bearing laminated algal, microbial and peloidal microbial carbonates, algal carbonate crusts and pebbly, sandy, clayey, micritic carbonates. Palynological data collected from coal beds around Akcasehir-Tire shows that the Ayaklikiri Formation was deposited during the latest Early Miocene-earliest Late Miocene. Palynological data and some gastropoda taxa such as Planorbis sp. and Limnea sp. indicate that the Ayaklikiri Formation was deposited in a lacustrine environment. Palaeoclimatic results indicate a warm temperate to humid climate preceding the Middle Miocene Climatic Optimum. Dokuz Eylul UniversityDokuz Eylul University [04. KB. FEN.032] This study was supported by Dokuz Eylul University, AFS Project, No. 04. KB. FEN.032 awarded to Tahir Emre. The authors would like to express their gratitude to Robert Thorne who read the whole manuscript and forwarded his remarks. Special thanks go to Funda Akgun for her valuable contributions during the identification of palynomorphs. We would also like to thank Resit Altinoz who drew some figures and to the Tire Lignite Company for permitting us to sample from their coal deposit. This paper has also benefited from comments and suggestions by the referees and the editor. |
| Databáze: | OpenAIRE |
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