Latest Danian carbon isotope anomaly and associated environmental change in the southern Tethys (Nile Basin, Egypt)

Bornemann, André; Schulte, Peter; Sprong, Jorinde; Steurbaut, Étienne; Youssef, Mohamed; Speijer, Robert P.

doi:10.1144/0016-76492008-104

Cited by 76 publications

(64 citation statements)

References 47 publications

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“…The sudden decrease in carbonate in combination with a clear negative excursion in δ 13 C and δ 18 O indicates that this event may represent an early Paleocene global warming episode. This event clearly corresponds to the Latest Danian Event (LDE) of Bornemann et al [2009], the Danian/Selandian transition event of Speijer [2003] (Neo‐Duwi event), and the carbon isotope excursions CIE‐DS1 of Arenillas et al [2008] at Zumaia as well as ODP 761B off NW Australia [ Quillévéré et al , 2002] (Figure 5). New paleomagnetic data from Zumaia show that the onset of the transient δ 13 C excursion CIE‐DS1 occurred exactly at the C27n/C26r magnetochron boundary [ Dinarès‐Turell et al , 2010], identical to the data from Shatsky Rise.…”

Section: Discussionmentioning

confidence: 99%

A complete high‐resolution Paleocene benthic stable isotope record for the central Pacific (ODP Site 1209)

et al. 2011

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We have compiled the first stratigraphically continuous high‐resolution benthic foraminiferal stable isotope record for the Paleocene from a single site utilizing cores recovered at Pacific ODP Site 1209. The long‐term trend in the benthic isotope record suggests a close coupling of volcanic CO2 input and deep‐sea warming. Over the short‐term the record is characterized by slow excursions with a pronounced periodic beat related to the short (100 kyr) and long (405 kyr) eccentricity cycle. The phase relationship between the benthic isotope record and eccentricity is similar to patterns documented for the Oligocene and Miocene confirming the role of orbital forcing as the pace maker for paleoclimatic variability on Milankovitch time scales. In addition, the record documents an unusual transient warming of 2°C coeval with a 0.6‰ carbon isotope excursion and a decrease in carbonate content at 61.75 Ma. This event, which bears some resemblance to Eocene hyperthermals, marks the onset of a long‐term decline in δ13C. The timing indicates it might be related to the initiation of volcanism along Greenland margin.

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Section: Discussionmentioning

confidence: 99%

A complete high‐resolution Paleocene benthic stable isotope record for the central Pacific (ODP Site 1209)

et al. 2011

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“…65.2 Ma (Quillévéré et al, 2008), the latest Danian event ca. 61.7 Ma (Westerhold et al, 2008;Bornemann et al, 2009), and the Danian-Selandian transition event ca. 61 Ma (Speijer, 2003).…”

Section: Introductionmentioning

confidence: 99%

A high-resolution nonmarine record of an early Danian hyperthermal event, Boltysh crater, Ukraine

Gilmour

Jolley

et al. 2013

Geology

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Carbon isotope and palynological analysis of the fi ne-grained organic carbon-rich lacustrine sediments that fi lled the Cretaceous-Paleogene (K-Pg) boundary-age Boltysh impact crater (Ukraine) preserve a uniquely complete and detailed record of a negative carbon isotope excursion in an expanded section of the early Danian that we estimate lasted as long as ~340 k.y. Palynological assemblages recovered through the excursion refl ect the increasing dominance of thermophylic Normapolles species, indicating an increasingly warm and dry climate, while those recovered below and above the excursion refl ect a cooler and wetter climate. The record of a transient warming event (hyperthermal) in the early Danian at Boltysh has strong similarities with the Dan-C2 hyperthermal event recorded in marine sediments in Tethys and the Atlantic Ocean, and suggests that there were profound environmental changes occurring on a global scale shortly after the K-Pg boundary.*

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“…9 Variation in the percentage of benthic foraminifera according to the nature of the test Speijer 2003;Bornemann et al 2009). Indeed, Fig.…”

Section: Isotopic Analysismentioning

confidence: 99%

“…This level coincides with the first appearance of the species Igorina albeari marker of the base of the P3b subzone of the Selandian. This level has been considered by some authors as the precursor event of Paleocene-Eocene Thermal Maximum (PETM) (Speijer 2003;Guasti et al 2005;Obaidalla et al 2009;Bornemann et al 2009;Youssef 2009;Soliman and Obaidalla 2010;Sprong et al 2009Sprong et al , 2011Sprong et al , 2013Farouk and El-Sorogy 2015). Several studies have been performed on the Danian/Selandian transition of the Nile Basin in Egypt but the limit had not been well identified despite the definition of the global stratotype (Luger 1985;Bassiouni et al 1991;Tantawy et al 2001;Hewaidy et al 2006;El-Azabi and Farouk 2011;Boukhary et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Planktonic foraminiferal biostratigraphy and paleoenvironment of the Danian/Selandian in west-central Sinai (Egypt), implications from the Nukhul section

et al. 2016

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The foraminiferal analysis at the Danian/Selandian boundary of the Nukhul section (Egypt) enabled us to determine the biozones of Praemurica uncinata (P2); Morozovella angulata (P3a); Igorina albeari (P3b), and Acarinina soldadoensis/Globanomalina pseudomenardii (P4c). Thus, the base of Selandian is defined by the first occurrence of I. albeari and the P4c subzone covers unconformably the P3b subzone. The quantitative and qualitative analysis of the planktonic and benthic foraminifera assemblages and the isotopic analysis permitted characterization of the paleoclimate and paleoenvironment. Thus, at the middle to upper Danian, the environment was marine intertidal under a relatively cold climate. At the lower Selandian base of the Thanetian, a rise in the sea level was recorded and the warmer climatic conditions seem to be settling. In the upper Thanetian, we note the installation of colder weather conditions and a further sudden drop in sea level.

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Latest Danian carbon isotope anomaly and associated environmental change in the southern Tethys (Nile Basin, Egypt)

Cited by 76 publications

References 47 publications

A complete high‐resolution Paleocene benthic stable isotope record for the central Pacific (ODP Site 1209)

A complete high‐resolution Paleocene benthic stable isotope record for the central Pacific (ODP Site 1209)

A high-resolution nonmarine record of an early Danian hyperthermal event, Boltysh crater, Ukraine

Planktonic foraminiferal biostratigraphy and paleoenvironment of the Danian/Selandian in west-central Sinai (Egypt), implications from the Nukhul section

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