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    Paramagnetic characterization of fossil mollusc shells at eastern part of the old Konya lake: its importance for EPR dating
    (Oxford Univ Press, 2023) Ekici, Gamze; Sayin, Ulku; Isik, Mesut; Kapan, Sevinc; Demir, Ahmet; Aydin Karaaslan, Hulya; Delikan, Arif
    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 Turkiye 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.