The Homerian (late Wenlock, Silurian) carbon isotope excursion from Perunica: does dolomite control the magnitude of the carbon isotope excursion?

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41330%2F16%3A70661" target="_blank" >RIV/60460709:41330/16:70661 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1139/cjes-2015-0188" target="_blank" >http://dx.doi.org/10.1139/cjes-2015-0188</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1139/cjes-2015-0188" target="_blank" >10.1139/cjes-2015-0188</a>

Result language
angličtina
Original language name
The Homerian (late Wenlock, Silurian) carbon isotope excursion from Perunica: does dolomite control the magnitude of the carbon isotope excursion?
Original language description
The delta13Ccarb records from two geographically close sections of the shallow-water Kozel Limestone Member (late Wenlock Motol Formation, Perunica microplate) significantly differ in the magnitude of the Homerian carbon isotope excursion as well as in their dolomite content. The present paper tests a hypothesis as to whether a difference of about 0,2% in the magnitude of the delta13Ccarb anomaly is caused by the different content of dolomite, which could be enriched in both 13C and 18O relative to coexisting calcite, as has been suggested by experimental data. The new data obtained reveal that the ?18O composition of calcite and dolomite was probably controlled by the pore fluid composition during limestone diagenesis and that both carbonates seem to be close to equilibrium in oxygen isotope composition. On the other hand, the delta13C values of dolomite are similar to those of calcite and thus the carbon isotope composition of both carbonates was probably determined by the precursor carbonate compo
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DD - Geochemistry
OECD FORD branch
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Project
<a href="/en/project/GA15-13310S" target="_blank" >GA15-13310S: Tracing the continetal weathering during the mid-Paleozoic with Cr isotopes: Implications for nutrient fluxes and their effects on marine evolution</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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