Tracing impact events in clay samples with iridium anomaly at and above the Cretaceous/Paleogene boundary at Byala, Eastern Bulgaria
نویسندگان
چکیده
Elemental composition of two groups 12 clay samples, at and above the Cretaceous/Paleogene (K/Pg) boundary Byala (Black Sea shore, Eastern Bulgaria), is studied by Neutron Activation Analysis (NAA) in order to trace impact events. Iridium anomaly a certain set elements, together with biostratigraphic data, point possible events recorded: first one (at K/Pg boundary), linked giant Chicxulub Mexico; second (above possibly later age, smaller closer distance, Boltysh Ukraine.
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ژورنال
عنوان ژورنال: Geologica Balcanica
سال: 2022
ISSN: ['0324-0894', '2535-1060']
DOI: https://doi.org/10.52321/geolbalc.51.3.3