Informace o publikaci

High resolution biostratigraphy of the Tournaisian-Viséan boundary interval in the North Staffordshire Basin and correlation with the South Wales-Mendip Shelf.

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KALVODA Jiří BÁBEK Ondřej ARETZ Markus COSSEY Patrick DEVUYST Francois Xavier HARGREAVES Simon NUDDS John

Rok publikování 2012
Druh Článek v odborném periodiku
Časopis / Zdroj Bulletin of Geosciences
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www http://www.geology.cz/bulletin/contents/2012/vol87no3
Doi http://dx.doi.org/10.3140/bull.geosci.1338
Obor Geologie a mineralogie
Klíčová slova Tournaisian-Viséan boundary stratigraphy
Popis Astudy of three carbonate sections in the North Staffordshire Basin and two in the South Wales-Mendip Shelf yielded so far the richest foraminiferal associations at the Tournaisian-Viséan boundary in Western Europe enabling a very good correlation with the stratotype area in South China. The biostratigraphic study was refined by sedimentological and gamma-spectrometrical data in order to define and calibrate the high resolution biostratigraphy across the boundary interval. The study illustrates the cryptic entry of the stratigraphically important species of the Chadian index genus Eoparastaffella which is abundant in photozoan facies. Across the Tournaisian-Viséan boundary, changes in the character of the foraminiferal associations reflect the gradual change from heterozoan dominated late Tournaisian ramps to Viséan photozoan dominated platforms. The combined application of biostratigraphic and sedimentological methods and gamma ray manifestation of the mid Avonian sequence boundaries have proved useful in the identification of the Tournaisian-Viséan boundary in Carboniferous successions on either side of the Wales-Brabant Massif and has widespread applicability for successions of a similar age across Western Europe
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