Radiolarians and stratigraphy of Cenomanian-Coniacian deposits in the Crimean and West Sakhalin Mountains, Pt. 1: Biostratigraphic subdivision and correlation |
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Authors: | L. G. Bragina |
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Affiliation: | (1) Geological Institute, Russian Academy of Sciences, Moscow, Russia |
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Abstract: | Radiolarian biostratigraphy suggested in this work for the Cenomanian-Coniacian deposits in the Crimean and West Sakhalin Mountains is enhanced to be of a higher resolution. The Cenomanian-Coniacian succession of the West Sakhalin Mountains is subdivided into nine instead of five biostratigraphic units formerly known in this region. Deposits of the Crimean Mountains are subdivided based on radiolarians within the lower Cenomanian-lower Coniacian stratigraphic interval (the original biostratigraphic chart corresponded here to the upper Cenomanian-middle Turonian interval only). The established biostratigraphic subdivisions are correlated with those of the Tethyan and Pacific scales. |
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Keywords: | stratigraphy correlation radiolarians Upper Cretaceous Tethys northern Peri-Tethys Pacific |
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