Calcareous nannoplankton in the Upper Jurassic ma rine deposits of the Bohemian Massif: new data concerning the Boreal-Tethyan communication corridor

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10332667" target="_blank" >RIV/00216208:11310/16:10332667 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.7306/gq.1282" target="_blank" >http://dx.doi.org/10.7306/gq.1282</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.7306/gq.1282" target="_blank" >10.7306/gq.1282</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Calcareous nannoplankton in the Upper Jurassic ma rine deposits of the Bohemian Massif: new data concerning the Boreal-Tethyan communication corridor

Popis výsledku v původním jazyce

Calcareous nannoplankton assemblages from the Jurassic relict deposits in the northern part of the Bohemian Massif are described here for the first time. They are generally of low diversity and dominated by watznaueriaceans. Some of them are diagenetically affected, probably due to dolomitisation. Calcareous nannoplankton enables the stratigraphical range of the Northern Bohemia Jurassic succession to be extended to the Tithonian by reference to the stratigraphical range of Jurassic platform sequences in Central Poland and the eastern part of the Bohemian Massif. The Oxfordian-Kimmeridgian nannofossil assemblages indicate a generally oligotrophic condition of the restricted sea with episodic fluvial input containing terrestrial nutrients. The character of the upper part of the water column was generally uniform and did not reflect variabil ity at the sea-floor expressed by lithofacies diversity. The palaeoenvironment interpreted for the famous former palaeontological locality "Sternberk Quarry" was characterized by a higher nutrient content and more stable environment. The Tithonian nannofossil assemblages contain warm-water Tethyan taxa which suggest south-north migration of nannoplankton due to warming during the Jurassic-Cretaceous boundary interval.

Název v anglickém jazyce

Calcareous nannoplankton in the Upper Jurassic ma rine deposits of the Bohemian Massif: new data concerning the Boreal-Tethyan communication corridor

Popis výsledku anglicky

Calcareous nannoplankton assemblages from the Jurassic relict deposits in the northern part of the Bohemian Massif are described here for the first time. They are generally of low diversity and dominated by watznaueriaceans. Some of them are diagenetically affected, probably due to dolomitisation. Calcareous nannoplankton enables the stratigraphical range of the Northern Bohemia Jurassic succession to be extended to the Tithonian by reference to the stratigraphical range of Jurassic platform sequences in Central Poland and the eastern part of the Bohemian Massif. The Oxfordian-Kimmeridgian nannofossil assemblages indicate a generally oligotrophic condition of the restricted sea with episodic fluvial input containing terrestrial nutrients. The character of the upper part of the water column was generally uniform and did not reflect variabil ity at the sea-floor expressed by lithofacies diversity. The palaeoenvironment interpreted for the famous former palaeontological locality "Sternberk Quarry" was characterized by a higher nutrient content and more stable environment. The Tithonian nannofossil assemblages contain warm-water Tethyan taxa which suggest south-north migration of nannoplankton due to warming during the Jurassic-Cretaceous boundary interval.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Geological Quarterly

ISSN

1641-7291

e-ISSN

—

Svazek periodika

60

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

PL - Polská republika

Počet stran výsledku

13

Strana od-do

624-636

Kód UT WoS článku

000393090300007

EID výsledku v databázi Scopus

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