Bioturbation of claystones of the Most Basin in the Bílina Quarry (Miocene, Czech Republic)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F06%3A00049218" target="_blank" >RIV/67985831:_____/06:00049218 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Bioturbation of claystones of the Most Basin in the Bílina Quarry (Miocene, Czech Republic)

Original language description

In the Miocene of the Most Basin, tuffitic substrates underlying the Main Coal Seam yielded the trace fossil Taenidium isp. The body of lacustrine clays above the Main Coal Seam contains frequent ?Selenichnites isp. The persistent horizon of dark clay provided finds of Unisulcus. A substantial part of the mudstone deposits of the Bílina delta shows a well-visible, intensive bioturbation by Planolites montanus. Finds of Taenidium isp. point to the settings of periodically inundated paleosols. ?Selenichnites isp. occurs in quiet, shallow-water lacustrine settings. The same regime could be characteristic for Unisulcus-dominated sediment, with perhaps stronger ecological stress for most of the benthic fauna. The Planolites montanus assemblage had been cyclically suppressed by rapid sedimentation and subsequent biological influence. It is likely that the periodicity of the cycle was very short, probably annual.

Czech name

Bioturbace v jílovcích mostecké pánvce v lomu Bílina (miocén, Česká republika)

Czech description

In the Miocene of the Most Basin, tuffitic substrates underlying the Main Coal Seam yielded the trace fossil Taenidium isp. The body of lacustrine clays above the Main Coal Seam contains frequent ?Selenichnites isp. The persistent horizon of dark clay provided finds of Unisulcus. A substantial part of the mudstone deposits of the Bílina delta shows a well-visible, intensive bioturbation by Planolites montanus. Finds of Taenidium isp. point to the settings of periodically inundated paleosols. ?Selenichnites isp. occurs in quiet, shallow-water lacustrine settings. The same regime could be characteristic for Unisulcus-dominated sediment, with perhaps stronger ecological stress for most of the benthic fauna. The Planolites montanus assemblage had been cyclically suppressed by rapid sedimentation and subsequent biological influence. It is likely that the periodicity of the cycle was very short, probably annual.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DB - Geology and mineralogy

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta Universitatis Carolinae. Geologica

ISSN

0001-7132

e-ISSN

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Volume of the periodical

47 /2003/

Issue of the periodical within the volume

1-4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

7

Pages from-to

79-85

UT code for WoS article

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EID of the result in the Scopus database

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