Middle Eocene–late Oligocene climate variability: Calcareous nannofossil response at Kerguelen Plateau, Site 748

Villa, Giuliana; Fioroni, Chiara; Pea, Laura; Bohaty, Steven M; Persico, Davide

doi:10.1016/j.marmicro.2008.07.006

Cited by 184 publications

(231 citation statements)

References 43 publications

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“…The standard calcareous nannofossil zonations of Martini (1971) and Okada and Bukry (1980) are widely used for low-and middle-latitude Eocene-Oligocene (E-O) biostratigraphic studies, and were used in this paper. To infer probable temperature and trophic variations of surface waters, most calcareous nannofossils were, when possible, allocated into groups of environmental affinities, largely following Haq and Lohmann (1976), Aubry (1992), Gardin and Monechi (1998), Bralower (2002a,b), Tremolada and Bralower (2004), Persico and Villa (2004), Gibbs et al (2006), Villa et al (2008), Raffi et al (2009) and Agnini et al (2011). Based on this literature, the following environmental groups were used: eutrophic taxa (Dictyococcites bisectus, Dictyococcites scrippsae, Reticulofenestra daviesii), and oligotrophic taxa (Cribrocentrum reticulatum, Ericsonia spp., Sphenolithus spp., Zygrhablithus bijugatus) (Appendix B).…”

Section: Methodsmentioning

confidence: 99%

Enhanced primary productivity and magnetotactic bacterial production in response to middle Eocene warming in the Neo-Tethys Ocean

Savian

Jovane

Frontalini

et al. 2014

Palaeogeography, Palaeoclimatology, Palaeoecology

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Section: Methodsmentioning

confidence: 99%

Enhanced primary productivity and magnetotactic bacterial production in response to middle Eocene warming in the Neo-Tethys Ocean

Savian

Jovane

Frontalini

et al. 2014

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…Quantitative diagram of nannofossils expressed as percentage of species with warm-water preferences (A), temperatewater preferences (B) and cold-water preferences (C) plotted against the depth in the Rapovce GTL-2 borehole section (nannoplankton temperature preferences according to Wei et al 1992;Bralower 2002;Persico & Villa 2004;Bartol et al 2008 Quantitative diagram of nannofossils expressed as percentage of eutrophic species (A) and oligotrophic species (B) and plotted against the depth in the Rapovce GTL-2 borehole section (nannoplankton trophic preferences according to Wei et al 1992;Bralower 2002;Persico & Villa 2004;Bartol et al 2008). (Aubry 1992;Villa et al 2008). The second group consists of oligotrophic species that are able to survive even in the areas poorer in nutrients.…”

Section: Nannofossil Paleoecologymentioning

confidence: 99%

Oligocene-Early Miocene Planktonic Microbiostratigraphy and Paleoenvironments of the South Slovakian Basin (Lučenec Depression)

Ozdínová

Soták²

2015

Geologica Carpathica

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Oligocene and Lower Miocene sediments of the Lučenec Depression were studied to demonstrate the planktonic bioevents and climatic proxies from the Číž Formation (Rupelian) and Lučenec Formation (Chattian-Aquitanian) on the basis of quantitative analyses of foraminifers and calcareous nannofossils. The oldest nannofossil assemblages of the Číž Formation belonged to the NP23 Zone and were dominated by Reticulofenestra ornata known for preference of temperate eutrophic water conditions. An increase in bioproductivity was documented by abundant large-sized planktonic foraminifers (e.g. Turborotalia ampliapertura, Paragloborotalia nana, Subbotina gortanii) and epifaunal to shallow-infaunal benthic species. The middle part of the Číž Formation reveals a lowstand progradation of deltaic sediments of the Rapovce Member. There, the planktonic foraminifers are impoverished in both size and diversity, containing mostly tenuitellid and cassigerinellid species, probably as a result of decreased salinity and increased anoxia in the Tard Clay. Contrary of this, the benthic foraminifers are rich, mainly the infaunal forms of uvigerinid species. They probably proliferated due to a high organic flux from riverine input.

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“…Cool-or cold-wa ter taxa Bukry (1973), Wei and Wise (1990), Firth and Wise (1992), Bralower (2002), Persico and Villa (2004), Tremolada and Bralower (2004), Villa and Persico (2006), Villa et al (2008), Oszczypko-Clowes and ¯ydek (2012) Coccolithus formosus Discoaster sp. Helicosphaera sp.…”

Section: Istmolithus Recurvus Reticulofenestra Daviesiimentioning

confidence: 99%

The mid/late Eocene transition in the Eastern Carpathians (Romania) based on foraminifera and calcareous nannofossil assemblages

Bindiu

Filipescu

Bălc

et al. 2015

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Foraminiferal and cal car e ous nannofossil as sem blages from the East ern Carpathians (north ern part of the Tarcãu Nappe, Ro ma nia) were doc u mented and cor re lated in or der to re con struct the palaeonvironmental set tings and pro vide a biostratigraphic frame work of the Plopu For ma tion. The ben thic foraminiferal as sem blages are dom i nated by flysch-type agglu ti nated taxa, sug gest ing a bathyal palaeodepth with fre quent os cil la tions of the car bon com pen sa tion depth. The ag glu tinated foraminifera morphogroup anal y ses sug gest dif fer ent lev els of or ganic mat ter in flux and ox y gen a tion. Both the foraminifera and cal car e ous nannofossil as sem blages sug gest a shift be tween the warm Mid dle Eocene to the cooler Late Eocene cli mate. Biostratigraphic data based on cal car e ous nannofossils (NP15-NP19/NNTe8-NNTe12 biozones) helped to es tab lish the age of the for ma tion. Four as sem blages of ben thic ag glu ti nated foraminifera (Psammosiphonella cylindrica-No thia excelsa; Paratrochamminoides spp.-Trochamminoides spp.; Karrerulina spp.-Reticulophragmium amplectens; Spiroplectammina spectabilis) cor re lated with cal car e ous nannofossil bioevents sup ported the place ment of the Middle to Late Eocene tran si tion within the Plopu For ma tion.

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Middle Eocene–late Oligocene climate variability: Calcareous nannofossil response at Kerguelen Plateau, Site 748

Cited by 184 publications

References 43 publications

Enhanced primary productivity and magnetotactic bacterial production in response to middle Eocene warming in the Neo-Tethys Ocean

Enhanced primary productivity and magnetotactic bacterial production in response to middle Eocene warming in the Neo-Tethys Ocean

Oligocene-Early Miocene Planktonic Microbiostratigraphy and Paleoenvironments of the South Slovakian Basin (Lučenec Depression)

The mid/late Eocene transition in the Eastern Carpathians (Romania) based on foraminifera and calcareous nannofossil assemblages

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