Record of sea-level changes, oxygen depletion and the δ13C anomaly across the Cenomanian-Turonian boundary, Bohemian Cretaceous Basin

Uličný, David; Hladı́ková, Jana; Hradecká, Lenka

doi:10.1006/cres.1993.1015

Cited by 38 publications

(16 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Uličný et al, 1993;Čech et al, 2005). A second, less prominent, omission surface at 398.2 m, is overlain also by glauconite-rich, greenish-grey marlstone (Fig.…”

Section: Cenomanian-turonian Boundarymentioning

confidence: 99%

“…All correlations of events in the d 13 C org curve were corroborated against the biostratigraphic markers in order to avoid miscorrelations arising from simple 'wiggle-matching'. (Uličný et al, 1993), and thus d 13 C org was considered to be a more reliable carrier of primary signal through the entire study interval. Analytical reproducibility of replicate samples was on average ±0.15‰.…”

mentioning

confidence: 99%

See 1 more Smart Citation

A high-resolution carbon-isotope record of the Turonian stage correlated to a siliciclastic basin fill: Implications for mid-Cretaceous sea-level change

Uličný

Jarvis

Gröcke

et al. 2014

Palaeogeography, Palaeoclimatology, Palaeoecology

View full text Add to dashboard Cite

Citation for published item:lin¡ yD hF nd trvisD sF nd qr¤ okeD hF F nd gehD F nd vurinD tF nd yldeD uF nd ruhoEelexndreD tF nd v¡ enik¡ D vF nd edenthoukD xF @PHIRA 9e highEresolution ronEisotope reord of the uronin stge orrelted to siliilsti sin (ll X implitions for midEgreteous seElevel hngeF9D leogeogrphyD pleolimtologyD pleoeologyFD RHS F ppF RPESVF Further information on publisher's website: httpsXGGdoiForgGIHFIHITGjFpleoFPHIRFHQFHQQ Publisher's copyright statement: NOTICE: this is the author's version of a work that was accepted for publication in Palaeogeography, Palaeoclimatology, Palaeoecology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reected in this document. Changes may have been made to this work since it was submitted for publication. A denitive version was subsequently published in Palaeogeography, Palaeoclimatology, Palaeoecology, 405, 1 July 2014, 10.1016/j.palaeo.2014 Additional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

show abstract

“…Uličný et al, 1993;Čech et al, 2005). A second, less prominent, omission surface at 398.2 m, is overlain also by glauconite-rich, greenish-grey marlstone (Fig.…”

Section: Cenomanian-turonian Boundarymentioning

confidence: 99%

mentioning

confidence: 99%

A high-resolution carbon-isotope record of the Turonian stage correlated to a siliciclastic basin fill: Implications for mid-Cretaceous sea-level change

Uličný

Jarvis

Gröcke

et al. 2014

Palaeogeography, Palaeoclimatology, Palaeoecology

View full text Add to dashboard Cite

show abstract

“…On a global scale, the C-T boundary is characterized by its warm climate interval accompanied by a major sea level transgression (Hancock & Kauffman 1979;Haq et al 1987;Uličný et al 1993;Hardenbol et al 1998). However, many authors have described an ephemeral but significant decrease in sea surface temperatures at the onset of OAE2 in some CTB sections (Lamolda et al 1994;Forster et al 2007;Jarvis et al 2011;Kaiho et al 2014 among others).…”

Section: The Late Cenomanian Sea Surface Temperature Coolingmentioning

confidence: 99%

Planktonic foraminiferal turnover across the Cenomanian – Turonian boundary (OAE2) in the northeast of the Tethys realm, Kopet-Dagh Basin

Kalanat¹,

Vahidinia²,

Vaziri‐Moghaddam³

et al. 2016

Geologica Carpathica

View full text Add to dashboard Cite

Two Late Cenomanian -Early Turonian (C-T) intervals of the eastern part of the Kopet-Dagh basin, NE Iran have been investigated to evaluate the response of planktonic foraminifera to the geological event OAE2. The Gharesu and Taherabad sections with the thicknesses of 30 m and 22.5 m are composed of shale and marl interbedded with glauconitic sandstone. Three biozones Rotalipora cushmani, Whiteinella archaeocretacea and Helvetoglobotruncana helvetica were recognized based on study of planktonic foraminifera, in these sections. We observed the patterns of planktonic foraminiferal assemblage changes around the C-T boundary and divided this succession into several successive intervals. This study confirms that OAE2 was a long term event. A gradual perturbation in the study successions starts in the interval 1 with low abundance and diversity of planktonic foraminifera. An enhanced oxygen minimum zone (OMZ) occurs in the interval 3 which coincides with a temporary absence of planktonic foraminifera and sedimentation of framboidal pyrite. High diversity of planktonic foraminifera and appearance of new genera in the interval 5 indicate return of normal conditions to the basin. A significant short-term sea surface temperature cooling is also indicated by planktonic foraminiferal turnover and carbonate contents in the interval 2 which is comparable with other parts of the Tethys Ocean, Boreal sea and Atlantic region.

show abstract

“…The sedimentation of Cretaceous deposits in the BCB started in the Early and continued during the Middle Cenomanian as a typical continental depositional sequence (Peruc Beds of the local stratigraphic column; Malkovský et al 1974;Čech et al 1980;Uličný et al 1993Uličný et al , 1997. The basal sediments reflect fluvial freshwater sedimentation with very coarse material deposited by rivers.…”

Section: Cenomanianturonian Rudist-bearing Strata In Northern Egyptmentioning

confidence: 99%

“…A marked decrease of rudist-assemblages diversity was observed for both Egypt and the BCB. That decrease in diversity probably reflects global palaeoceanographic changes during the Cenomanian/Turonian boundary interval and, subsequently, biotic turnover at this boundary, which is characterized by the global occurrence of organic-rich deposits and a carbon isotope excursion (the Cenomanian/Turonian Oceanic Anoxic Event, OAE2 or Bonarelli Event; Hilbrecht et al 1986, Arthur et al 1988, Uličný et al 1993, Kerr 1998, Sagemann et al 2006.…”

mentioning

confidence: 99%

Carbon and oxygen stable isotopes of selected Cenomanian and Turonian rudists from Egypt and Czech Republic, and a note on changes in rudist diversity

El-Shazly¹,

Košťák²,

Kloučková³

et al. 2011

Bull. Geosci.

View full text Add to dashboard Cite

The stable isotope record and diversity of Cenomanian and Turonian rudists were compared for areas located at low paleolatitudes (10°N -Northern Egypt; 5 samples; 13 analyses) and middle paleolatitudes (35°N -Czech Republic, Bohemian Cretaceous Basin, BCB; 4 samples; 7 analyses). The oxygen isotope data indicate that the δ 18 O value of seawater was not identical for both areas. Moreover, local variations in seawater δ 18 O in the range of at least ±1‰ are probable in the shallow water near-shore environment where the rudists lived. Supposing a value of -1‰ VSMOW for contemporaneous seawater, the paleotemperature can be calculated as being between 24.5 and 31.5°C for the Late Cenomanian and between 32.9 and 34.7°C for the Early Turonian in the BCB. The δ 18 O seawater value for the northern part of Egypt was probably slightly lower. Calculation using a seawater value of -1.5‰ VSMOW gives temperatures for the Egypt in the range of 31.0 to 38.8°C for the Late Cenomanian and 35.5 to 41.2°C for the Turonian. The sclerochronological isotope profiles within one shell show changes of the calcite δ 18 O value, probably reflecting seasonal changes, with the largest observed within-shell temperature shift corresponding to 8°C. The analyzed pilot sample set shows that the BCB and Egyptian rudists contain valuable paleoenvironmental information and that a detailed isotope study is needed. Rudist generic diversity of both areas was also compared. The Cenomanian and Turonian rudist assemblages from Egypt and the BCB show similar generic diversity, and also display a similar marked diversity decrease across the Cenomanian/Turonian boundary interval. It is important to note that both areas have similar diversity on the generic and partially species level during the Cenomanian and Turonian. •

show abstract

Record of sea-level changes, oxygen depletion and the δ13C anomaly across the Cenomanian-Turonian boundary, Bohemian Cretaceous Basin

Cited by 38 publications

References 0 publications

A high-resolution carbon-isotope record of the Turonian stage correlated to a siliciclastic basin fill: Implications for mid-Cretaceous sea-level change

A high-resolution carbon-isotope record of the Turonian stage correlated to a siliciclastic basin fill: Implications for mid-Cretaceous sea-level change

Planktonic foraminiferal turnover across the Cenomanian – Turonian boundary (OAE2) in the northeast of the Tethys realm, Kopet-Dagh Basin

Carbon and oxygen stable isotopes of selected Cenomanian and Turonian rudists from Egypt and Czech Republic, and a note on changes in rudist diversity

Contact Info

Product

Resources

About