KTO Karatay University, Vocational School of Health Services, Opticianry Programme, Konya, Türkiye.
Faculty of Science, Department of Physics, Selçuk University, Konya, Türkiye.
Radiat Prot Dosimetry. 2023 Sep 18;199(14):1632-1638. doi: 10.1093/rpd/ncad162.
Fossil mollusc shells are used for dating geological materials because they are well preserved throughout geological time. In this study, the radicals in the structure of fossil mollusc shells (Dreissena iconica, Valvata piscinalis, Bithynia tentaculate, Unio pictorum) collected from the Eastern Part of Old Konya Lake in Türkiye were investigated by EPR technique. For all fossil shells, microwave and temperature dependence of the signals were examined, and the signals suitable for dating are discussed. Characteristic features of intrinsic and impurity-related radicals were identified and the importance of paleontological evaluation of molluscs to get a reliable equivalent dose in EPR dating studies was emphasised.
化石软体动物贝壳由于在整个地质时期都保存完好，因此被用于地质材料的年代测定。在这项研究中，使用电子顺磁共振（EPR）技术研究了从土耳其旧科尼亚湖东部采集的化石软体动物贝壳（Dreissena iconica、Valvata piscinalis、Bithynia tentaculate、Unio pictorum）结构中的自由基。对所有化石贝壳，都进行了微波和信号温度依赖性的研究，并讨论了适合年代测定的信号。鉴定了本征和杂质相关自由基的特征，并强调了在 EPR 年代测定研究中对软体动物进行古生物学评估以获得可靠等效剂量的重要性。
