Fauna and flora of drilling and core data from the Iznik Lake: the Marmara and the Black Sea connection

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dc.authorscopusid6701680974
dc.authorscopusid6603224904
dc.authorscopusid55910085800
dc.authorscopusid56815075800
dc.authorscopusid6602799789
dc.authorscopusid7102365473
dc.authorscopusid6505776146
dc.contributor.authorMeriç, Engin
dc.contributor.authorNazik, Atike
dc.contributor.authorYümün, Zeki Ünal
dc.contributor.authorBüyükmeriç, Yeşim
dc.contributor.authorAvşar, Niyazi
dc.contributor.authorYıldız, Ayşegül
dc.contributor.authorGokasan, Erkan
dc.date.accessioned2022-05-11T14:17:25Z
dc.date.available2022-05-11T14:17:25Z
dc.date.issued2018
dc.departmentFakülteler, Çorlu Mühendislik Fakültesi, Çevre Mühendisliği Bölümü
dc.descriptionWorkshop on Paleoclimatic and Paleoecological Studies in Turkey's Lakes (TURQLAKES) -- JUN 21-23, 2016 -- Ardahan Univ, Ardahan, TURKEY
dc.description.abstractThe study deals with on the Quaternary connection of the Iznik Lake between the Gemlik Gulf and the Black Sea located in the Marmara Region. The core and drilling data were evaluated. They were collected at two locations and depths from drilling cores and at the three deepest locations of the lake. A total of 510 samples were examined from the lake-bottom cores. Ostracod, mollusc, nannoplankton, ascidian spicule, and diatom assemblages observed at different levels of the drillings were studied. No foraminiferal data were recorded. Molluscan association such as Dreissena bugensis, D. caspia, Monodacna pontica, Clathrocaspia makarovi, Euxinipyrgula milachevitchi, Euxinipyrgula lincta indicate Neoeuxinian age. Amnicythere olivia, A. stepanaitysae, A. striatocostata, Tyrrhenocythere amnicola and Loxoconcha immodulata of the ostracod assemblage, exhibiting Ponto-Caspian origin, were found. In addition, fossil ascidian spicules comprising various species of Bonetia, Micrascidites, Monniotia, and Rigaudia genera were encountered, probably representing Late Pleistocene to Holocene ages. Campylodiscus echeneis, Cocconeis placentula var. lineata Epithemia turgida var. granulata, Epithemia adnata, Nitzschia commutate and N. vermicularis, from the diatom assemblage are genera and species also found in the Iznik Lake and in the Black Sea. Mollusc and ostracod fauna, the Ponto-Caspian origin indicates that the Iznik Lake was connected with the Black Sea and the Marmara Sea in the recent period. Thus, the Ponto-Caspian assemblages indicate the early Neoeuxinian (Surozhian) brackish water inundated the study area. Geochronological ages determined by the C-14 method from the deposits occurring at 53-54 m above present sea level in the Iznik Lake indicate the periods of connection via Iznik Lake during 33,630 to 32,920 cal BP (SK-1) and BP 27,335 to 27,070 cal BP (SK-2). When the position of the deposits is compared with the previously available Late Pleistocene C-14 data obtained from the molluscs identified in the nearby Gemlik Gulf at -76 m present water depth and also with the early Khazarian (Middle Pleistocene) age data on the molusc fauna at 130-150 m heights of uppermost terraces above present sea level to NW of the lake, we suggest the influence of a neo-tectonic regime for the occurrence of comparable age deposits at different levels in the region. It may be proposed that a vertical displacement in the order of a 100 m occurred since the late Pleistocene in the Iznik Lake area and the lake acquired its present features as a result of the tectonic movements. (C) 2017 Elsevier Ltd and INQUA. All rights reserved.
dc.description.sponsorshipTurkish Acad Sci
dc.identifier.doi10.1016/j.quaint.2017.08.067
dc.identifier.endpage184
dc.identifier.issn1040-6182
dc.identifier.issn1873-4553
dc.identifier.scopus2-s2.0-85029182953
dc.identifier.scopusqualityQ1
dc.identifier.startpage156
dc.identifier.urihttps://doi.org/10.1016/j.quaint.2017.08.067
dc.identifier.urihttps://hdl.handle.net/20.500.11776/6349
dc.identifier.volume486
dc.identifier.wosWOS:000437396100015
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorYümün, Zeki Ünal
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofQuaternary International
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectOstracod
dc.subjectMollusc
dc.subjectNannoplankton
dc.subjectAscidian spicule
dc.subjectDiatome
dc.subjectIznik Lake
dc.subjectTurkey
dc.subjectNorth Anatolian Fault
dc.subjectNw Turkey
dc.subjectOstracod Assemblages
dc.subjectDiatom Assemblages
dc.subjectActive Tectonics
dc.subjectLate Pleistocene
dc.subjectCaspian Sea
dc.subjectAegean Sea
dc.subjectEvolution
dc.subjectRegion
dc.titleFauna and flora of drilling and core data from the Iznik Lake: the Marmara and the Black Sea connection
dc.typeConference Object

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