Palaeoenvironments and palaeoceanography changes across the Jurassic/Cretaceous boundary in the Arctic realm: case study of the Nordvik section (north Siberia, Russia)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10288477" target="_blank" >RIV/00216208:11310/14:10288477 - isvavai.cz</a>
Alternative codes found
RIV/67985831:_____/14:00428331 RIV/61989100:27350/14:86090251
Result on the web
<a href="http://dx.doi.org/10.3402/polar.v33.19714" target="_blank" >http://dx.doi.org/10.3402/polar.v33.19714</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3402/polar.v33.19714" target="_blank" >10.3402/polar.v33.19714</a>
Alternative languages
Result language
angličtina
Original language name
Palaeoenvironments and palaeoceanography changes across the Jurassic/Cretaceous boundary in the Arctic realm: case study of the Nordvik section (north Siberia, Russia)
Original language description
The Jurassic/Cretaceous transition was accompanied by significant changes in palaeoceanography and palaeoenvironments in the Tethyan Realm, but outside the Tethys such data are very scarce. Here we present results of a study of the most complete sectionin the Panboreal Superrealm, the Nordvik section. Belemnite d18O data show an irregular decrease from values reaching up to +1.6 %o in the Middle Oxfordian and from +0.8 to -1.7 %o in the basal Ryazanian, indicating a prolonged warming. The biodiversitychanges were strongly related to sea-level oscillations, showing a relatively low belemnite and high ammonite diversity during sea-level rise, accompanied by a decrease of the macrobenthos taxonomical richness. The most prominent sea-level rise is markedby the occurrence of open sea ammonites with Pacific affinities. Peak abundances of spores and prasinophytes correlate with a negative excursion in organic carbon d13C near the J/K boundary and could reflect blooms of green algae caused
Czech name
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Czech description
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Classification
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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Result continuities
Project
<a href="/en/project/GA205%2F07%2F1365" target="_blank" >GA205/07/1365: Integrated stratigraphy and geochemistry of the Jurassic/Cretaceous boundary strata in the Tethyan and Boreal Realms</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Polar Research
ISSN
0800-0395
e-ISSN
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Volume of the periodical
33
Issue of the periodical within the volume
březen
Country of publishing house
NO - NORWAY
Number of pages
19
Pages from-to
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UT code for WoS article
000333596900001
EID of the result in the Scopus database
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