Climate-forced Hg-remobilization associated with fern mutagenesis in the aftermath of the end-Triassic extinction
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F24%3A00585668" target="_blank" >RIV/67985831:_____/24:00585668 - isvavai.cz</a>
Result on the web
<a href="https://www.nature.com/articles/s41467-024-47922-0" target="_blank" >https://www.nature.com/articles/s41467-024-47922-0</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41467-024-47922-0" target="_blank" >10.1038/s41467-024-47922-0</a>
Alternative languages
Result language
angličtina
Original language name
Climate-forced Hg-remobilization associated with fern mutagenesis in the aftermath of the end-Triassic extinction
Original language description
The long-term effects of the Central Atlantic Magmatic Province, a large igneous province connected to the end-Triassic mass-extinction (201.5Ma), remain largely elusive.Here, we document the persistence of volcanic-induced mercury (Hg) pollution and its effects on the biosphere for ~1.3 million years after the extinction event. In sediments recovered in Germany (Schandelah-1 core), we record not only high abundances of malformed fern spores at the Triassic-Jurassic boundary, but also during the lower Jurassic Hettangian, indicating repeated vegetation disturbance and stress that was eccentricityforced. Crucially, these abundances correspond to increases in sedimentary Hg-concentrations. Hg-isotope ratios (δ202Hg, Δ199Hg) suggest a volcanic source of Hg-enrichment at the Triassic-Jurassic boundary but a terrestrial source for the early Jurassic peaks. We conclude that volcanically injected Hg across the extinction was repeatedly remobilized from coastal wetlands and hinterland areas during eccentricity-forced phases of severe hydrological upheaval and erosion, focusing Hg-pollution in the Central European Basin.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nature Communications
ISSN
2041-1723
e-ISSN
2041-1723
Volume of the periodical
15
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
3596
UT code for WoS article
001210983300015
EID of the result in the Scopus database
2-s2.0-85191618818