Problems in dating results on lake sediments: Türkiye

Göl sedimanlarında tarihlendirme sonuçlarıyla ilgili sorunlar: Türkiye

Indexed In

Volume 175 / December 2024

Authors

Çetin ŞENKUL, Şule GÜRBOĞA, Turhan DOĞAN, Mustafa DOĞAN, Yasemin ÜNLÜ, Yunus BOZKURT

Keywords

Freshwater Reservoir Effect, Terrestrial Material, Aquatic Plants, Subaquatic Studies, Age- Depth Models.

Abstract

In the dating process on the study of earth sciences, one of the basic assumptions is the equilibrium in the amount of carbon between terrestrial samples and the atmosphere. Most radiocarbon dating results are prepared regarding to this assumption. Although it is frequently used, some invalid situations can be encountered during the subaquatic studies. Recent water samples, aquatic plants, and remnant of animals may present different ages than the actual age. Another problem using the age-depth model is how many dating results should we be used to ensure high accuracy of the model. We also present our field study results about the number of dating points. The aim of this study is to explain how we could solve the problem in dating the freshwater reservoir effect over for short and longtime durations. In order to eliminate the freshwater reservoir effect, the terrestrial material must be dated. Thus, the carbon in the organic material is not affected by the dissolved carbon in the water. The circumstances significantly improve the age-depth models accuracy.

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