First note on marine-like cementation of Late Holocene beachrock, Iznik Lake (Turkey)
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Dosyalar
Tarih
2012-03
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
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Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Micro-fabric characteristics and optically stimulated luminescence (OSL) dating results are presented to discuss the controlling agents and timing of beachrock cementation on the fresh-water Iznik Lake shoreline. The beachrocks are made up of grain-supported polygenic conglomerate containing 20.42% carbonate with encrusted grains, basically as micrite coatings, isopachous aragonite rims, cryptocrystalline void fills and meniscus bridges. The optical ages of twelve samples yielded ages that range from 4.226 +/- 0.569 ka on the lowermost beds to 0.706 +/- 0.081 on the uppermost. This is the first report of precipitation of marine-like cements in Iznik Lake. The abundant aragonite-dominated cement is likely indicative of precipitation-prone dry evaporative conditions from the climatic optimum to the last millennia.
Açıklama
Anahtar Kelimeler
Geology, Paleontology, Beachrock cementation, Carbonate precipitation, Late Holocene, Iznik Lake, Turkey, Intertidal zone, Nw Turkey, Island, Transition, Diagenesis, Basın
Kaynak
Geochronometria
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
39
Sayı
1
Künye
Erginal, A. E., Güneç Kıyak, N., Öztürk, M. Z., Yiğitbaş, E., Bozcu, M., Avcıoğlu, M. & Öztürk, B. (2012). First note on marine-like cementation of late holocene beachrock, iznik lake (turkey). Geochronometria, 39(1), 76-83. doi:10.2478/s13386-011-0053-2
