Calcareous nannofossils from the Upper Cretaceous of northern James Ross Island, Antarctica

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F12%3A00000083" target="_blank" >RIV/00025798:_____/12:00000083 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.7306/gq.1053" target="_blank" >http://dx.doi.org/10.7306/gq.1053</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.7306/gq.1053" target="_blank" >10.7306/gq.1053</a>

Result language
angličtina
Original language name
Calcareous nannofossils from the Upper Cretaceous of northern James Ross Island, Antarctica
Original language description
The Lower Campanian Chiastozygus garrisonii Zone and Gephyrobiscutum diabolum Subzone, respectively, was established in the lower part of the Santa Marta Formation, Lachman Crags Member, from the common occurrence of Gephyrobiscutum diabolum associated with Broinsonia parca parca and Acuturris scotus. Deposits of the Late Miocene Mendel Formation yielded exclusively reworked nannofossils from the older Upper Cretaceous deposits. Nannofossils indicate at least two distinct stratigraphic levels: Middle Coniacian and Santonian?basal Campanian, and these must have been sourced from the immediate area. The majority of the marine deposit samples studied were barren of nannofossils, probably due to late diagenetic secondary decalcification.
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
DB - Geology and mineralogy
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

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

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