Cementation characteristics and age of beachrocks in a fresh-water environment, Lake Iznik, NW Turkey

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dc.authoridOzturk, Muhammed Zeynel/0000-0002-9834-7680
dc.authoridAVCIOGLU, MUSTAFA/0000-0002-1590-0832
dc.contributor.authorErginal, Ahmet Evren
dc.contributor.authorKiyak, Nafiye Gunec
dc.contributor.authorOzturk, Muhammed Zeynel
dc.contributor.authorAvcioglu, Mustafa
dc.contributor.authorBozcu, Mustafa
dc.contributor.authorYiğitbaş, Erdinç
dc.date.accessioned2025-01-27T20:41:05Z
dc.date.available2025-01-27T20:41:05Z
dc.date.issued2012
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThis paper focuses on the cement characteristics and optical luminescence age of late Pleistocene-Holocene beachrock, exposed on the southeast shore of freshwater Lake Iznik in northwest Turkey, based on field observations, various spectroscopic analyses and optical dating results. The studied beachrock is a poorly-sorted coastal conglomerate composed mostly of gravels derived from surrounding volcanic rocks and marbles as well as quartz and carbonate grains. We identified different types of cements; dominated by micritic envelopes, bladed isopachous aragonite rims, void fills, radial aggregates and meniscus bridges, implying no single origin. Cementation characteristics indicate that marine-like cement micro-fabrics may occur in freshwater lake environments where the lake-water chemistry favors carbonate precipitation. OSL data revealed the existence of older beachrock dating back to 20.2 ka, together with younger Holocene-age beachrock of between 5.6 and 2.4 ka. This suggests that younger beachrocks have been superimposed on older cemented carbonates through the removal of carbonates by wave motion (splash and spray) during lower lake level conditions. (C) 2011 Elsevier B.V. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [109Y143]
dc.description.sponsorshipGokhan Erdogan and Evrim Yakut of the Izmir Institute of High Technology, Turkey, are thanked for their help with the SEM-EDX and XRD analyses and Graham Lee for proof-reading the paper. We appreciate the reviewer's useful comments the editorial recommendations that helped improve the paper. The first author wishes to dedicate this paper to the memory of Prof. Erkan Gokasan, who devoted his short life to earth sciences. This study was funded by the Scientific and Technological Research Council of Turkey (TUBITAK, Contract no: 109Y143).
dc.identifier.doi10.1016/j.sedgeo.2011.10.012
dc.identifier.endpage154
dc.identifier.issn0037-0738
dc.identifier.issn1879-0968
dc.identifier.scopus2-s2.0-84855678108
dc.identifier.scopusqualityQ1
dc.identifier.startpage148
dc.identifier.urihttps://doi.org/10.1016/j.sedgeo.2011.10.012
dc.identifier.urihttps://hdl.handle.net/20.500.12428/24003
dc.identifier.volume243
dc.identifier.wosWOS:000300128900010
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofSedimentary Geology
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectBeachrock
dc.subjectFresh-water cementation
dc.subjectLate Pleistocene
dc.subjectLake Iznik
dc.subjectTurkey
dc.titleCementation characteristics and age of beachrocks in a fresh-water environment, Lake Iznik, NW Turkey
dc.typeArticle

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