Response of benthic foraminiferal communities to changes in productivity and watermass conditions in the epicontinental Paratethys during the middle Miocene
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F19%3A00507825" target="_blank" >RIV/67985831:_____/19:00507825 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/19:00112877 RIV/00216208:11310/19:10408633
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0377839819300428?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0377839819300428?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.marmicro.2019.101750" target="_blank" >10.1016/j.marmicro.2019.101750</a>
Alternative languages
Result language
angličtina
Original language name
Response of benthic foraminiferal communities to changes in productivity and watermass conditions in the epicontinental Paratethys during the middle Miocene
Original language description
The Langhian epicontinental sea - the Central Paratethys - represented a dynamic environment experiencing many changes, making it an ideal system for testing various geochemical proxies. Here we present a result of a study based on a combination of organic geochemistry (δ13Corg, n-alkane based indices, TOC/TIC) with benthic foraminiferal stable isotopic (δ13C, δ18O) and paleoecological data from the time interval of ~14.4 to 14.36 Ma. Moreover, we evaluated foraminiferal paleoecological data (selected species: Melonis pompilioides, Gyroidinoides spp., Cibicidoides spp.) together with the δ13C and δ18O to interpret the paleoecological consequences at the seafloor. Doing so we assessed the problematics regarding the origin of the organic matter together with changes in productivity and subsequent reaction of benthic foraminiferal assemblages at the seafloor. We used the δ13Corg, TOC/TIC and the n-alkane based indices to estimate the primary production rate and to determine the origin of the organic matter at the studied locality. The reconstructed paleoenvironment represented an open marine realm without significant freshwater influence, where the primary productivity was generated by marine algae. A gradual decrease of productivity could be observed, linked with shallowing of the basin towards a more carbonate-dominated environment. Changes in nutrient flux and vertical migration of the less oxygenated zone turned out to be the main phenomena responsible for physicochemical and paleoecological changes in the foraminiferal communities within the sediment. In addition we tried to characterize the population dynamics of the studied benthic foraminiferal species under a variety of existing conditions at the seafloor.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10506 - Paleontology
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Marine Micropaleontology
ISSN
0377-8398
e-ISSN
—
Volume of the periodical
151
Issue of the periodical within the volume
August 2019
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
12
Pages from-to
101750
UT code for WoS article
000488143600003
EID of the result in the Scopus database
2-s2.0-85068457796