The late Aeronian graptolite sedgwickii Event. Associated positive carbon isotope excursion and facies changes in the Prague Synform (Barrandian area, Bohemia)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F12%3A00381216" target="_blank" >RIV/67985831:_____/12:00381216 - isvavai.cz</a>
Alternative codes found
RIV/60460709:41330/12:55161
Result on the web
<a href="http://dx.doi.org/10.1017/S001675681200026X" target="_blank" >http://dx.doi.org/10.1017/S001675681200026X</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1017/S001675681200026X" target="_blank" >10.1017/S001675681200026X</a>

Result language
angličtina
Original language name
The late Aeronian graptolite sedgwickii Event. Associated positive carbon isotope excursion and facies changes in the Prague Synform (Barrandian area, Bohemia)
Original language description
Lower Silurian black-shale succession of the Prague Synform provided detailed insight into graptolite faunal dynamics and diversity trends from middle Aeronian diversity maximum through late Aeronian crisis. Graptolite diversity decreased from 33 taxa inthe Lituigraptus convolutus Biozone to 17 taxa in the upper part of the Stimulograptus sedgwickii Biozone and newly erected Lituigraptus rastrum Biozone. The graptolite assemblages of the latter biozones exhibit low species richness along with high dominance. Many graptolite species that became extinct in the early part of the sedgwickii Zone were promptly replaced by new forms. In the later part of the sedgwickii Zone, however, replacement of extinct species by new forms considerably decelerated. Theincreased rate of graptolite extinction in the convolutus-sedgwickii zone boundary beds coincided with subtle changes in black shale lithologies and a positive shift in ?13Corg (for 2.2 >) compared to baseline values. Sea-level drawdown c
Czech name
—
Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DB - Geology and mineralogy
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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