Inoceramid and foraminiferal record and biozonation of the Turonian and Coniacian (Upper Cretaceous) of the Mangyshlak MTS., Western Kazakhstan

Walaszczyk, I.; Kopaevich, L.F.; Beniamovski, V.N.

Авторы: Ireneusz Walaszczyk, Kopaevich Ludmila F., Beniamovski Vladimir N.
Журнал: Acta Geologica Polonica
Том: 63
Номер: 4
Год издания: 2013
Издательство: Wydawnictwo Naukowe INVIT
Местоположение издательства: Poland
Первая страница: 469
Последняя страница: 487
DOI: 10.2478/a
Аннотация: The Turonian and Coniacian (Upper Cretaceous) of the Mangyshlak Mts., western Kazakhstan, yielded rich and relatively complete inoceramid record. The faunas and their revealed succession corresponds to what is known from central and eastern Europe, allowing the zonation as worked out in the latter areas, to be applied in virtually identical form. The gaps in the record of the group in Mangyshlak stem from the regional hiati in the geological record in the area and do not reflect any biogeographical differences between eastern and central-western Europe. Planktonic foraminifera are rare. Four successive interval range zones are, however, possible to distinguish, from bottom upward, Helvetoglobotrunaca helvetica, Marginotrunaca pseudolinneiana, Marginotruncana coronata, and Concavotruncana concavata. Their correlation with inoceramid zonation and consequently, chronostratigraphic scheme, is demonstrated. The zonation and chronostratigraphic subdivision as applied in Mangyshlak may easily be applied to other areas of the south-eastern margin of the East-European Craton (Crimea, Caucasus, eastern peri-Caspian basins). Key words: Cretaceous; Turonian; Coniacian; Mangyshlak; Biostratigraphy; Inoceramids; Foraminifers; Correlation; North European biogeographic Province.
Добавил в систему: Копаевич Людмила Федоровна

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Inoceramid and foraminiferal record and biozonation of the Turonian and Coniacian (Upper Cretaceous) of the Mangyshlak MTS., Western Kazakhstanстатья

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