Dramatic decrease of pelagic carbonate production by nannoplankton across the Early Toarcian anoxic event (T-OAE)

Mattioli, Emanuela; Pittet, Bernard; Petitpierre, Laurent; Mailliot, Samuel

doi:10.1016/j.gloplacha.2008.10.018

Cited by 141 publications

(96 citation statements)

References 66 publications

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“…Moreover, many studies focus on the late Pliensbachian and lower Toarcian time intervals (Mailliot et al, 2007(Mailliot et al, , 2013Fraguas et al, 2008Boulila et al, 2014;Clémence et al, 2015) whereas only the recent studies of Mattioli et al (2013) and Plancq et al (2016) extend into the upper Sinemurian. The focus on calcareous nannofossil response to late Pliensbachian-early Toarcian palaeoenvironmental perturbations (Perilli, 2000;Bucefalo Palliani et al, 1998Mattioli et al, 2004aMattioli et al, , 2008Mattioli et al, , 2009Tremolada et al, 2005;Mailliot et al, 2006Mailliot et al, , 2007Mailliot et al, , 2009Bour et al, 2007;Veiga de Oliveira et al, 2007;Suan et al, 2010;Fraguas and Young, 2011;Fraguas et al, 2012) has driven the attention away from lower parts of the Lower Jurassic and data are still limited for the Sinemurian to lower Pliensbachian time interval (Mattioli et al, 2013;. The demonstration of large-scale, potentially greenhouse-icehouse climatic changes (Dera et al, 2011;Korte and Hesselbo, 2011;Silva and Duarte, 2015) and large carbon isotopic excursions prior to the early Toarcian Oceanic Anoxic Event (eT-OAE) (van de Schootbrugge et al, 2005;Korte and Hesselbo, 2011;Riding et al, 2013;Duarte et al, 2014;Franceschi et al, 2014;Silva and Duarte, 2015;Gomez et al, 2016;Plancq et al, 2016) call for the establishment of a refined stratigraphy of the whole Sinemurian-Pliensbachian interval.…”

Section: Introductionmentioning

confidence: 99%

Sinemurian–Pliensbachian calcareous nannofossil biostratigraphy and organic carbon isotope stratigraphy in the Paris Basin: Calibration to the ammonite biozonation of NW Europe

Peti¹,

Thibault²,

Clémence³

et al. 2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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Abstract:The biostratigraphy of Sinemurian to lower Toarcian calcareous nannofossils has been investigated in the Sancerre-Couy core (Paris Basin), which contains a mixed assemblage of species with affinities to the northern and southern areas of the peritethyan realm, thus allowing for the use and calibration of the Mediterranean Province (Italy/S France) and NW Europe (UK) biozonation schemes. This study is based on semi-quantitative analyses of the calcareous nannofossil assemblage performed on 145 samples and the recorded bioevents are calibrated to the NW European Ammonite Zonation and to a new organic carbon isotope curve based on 385 data points. The main bioevents, i.e. the first occurrences of Parhabdolithus liasicus, Crepidolithus pliensbachensis, Crepidolithus crassus, Mitrolithus lenticularis, Similiscutum cruciulus sensu lato, Lotharingius hauffii, Crepidolithus cavus and Lotharingius sigillatus as well as the last occurrence of Parhabdolithus robustus, have been identified. However, we show that a large number of standard biostratigraphic markers show inconsistent occurrences at the base and top of their range, possibly accounting for some of the significant discrepancies observed between the different domains. In addition to the nine main bioevents used for the biozonation of the core, we document an additional 50 distinct bioevents, evaluate their reliability and discuss their potential significance by comparison to previous studies. A total of five significant negative organic carbon isotope excursions are identified and defined in the Paris Basin including the well-documented Sinemurian-Pliensbachian boundary event. One positive excursion is further defined in the Pliensbachian interval. Our calibration of high-resolution calcareous nannofossil biostratigraphy to ammonite biostratigraphy and organic carbon isotopes represents a new stratigraphic reference for the Lower Jurassic series.

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Section: Introductionmentioning

confidence: 99%

Sinemurian–Pliensbachian calcareous nannofossil biostratigraphy and organic carbon isotope stratigraphy in the Paris Basin: Calibration to the ammonite biozonation of NW Europe

Peti¹,

Thibault²,

Clémence³

et al. 2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…The Upper part of the Siniais Limestone belongs to Subzone NJT 5b Lotharingius sigillatus, spanning the Late Pliensbachian-basal Toarcian interval (Mattioli and Erba, 1999;Mattioli et al, 2009). The small negative followed by a small positive excursion in carbonate carbon-isotopic data in the same formation, confirms that there is the Pliensbachian-Toarcian boundary.…”

Section: Discussionmentioning

confidence: 99%

“…This Zone is encapsulated in the ammonite zones polymorphum/tenuicostatum and levisoni/serpentinus in Tethyan sections where ammonite biostratigraphy is available (Mattioli and Erba, 1999;Mattioli et al, 2009). …”

Section: XLVII No 2 -830mentioning

confidence: 99%

Chemostratigraphy of the Toarcian oceanic anoxic event from the Ionian Zone, Greece

et al. 2017

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“…2) from bed 30 upwards, assigning this interval to the NJT6 Zone (CNZ). This zone usually contains the T-OAE record (Mattioli et al 2004(Mattioli et al , 2009Casellato & Erba 2015), and, in other Tethyan basins, it spans the uppermost polymorphum -lower serpentinum ammonite zones.…”

Section: Record Of the Etmee In The Ce Sectionmentioning

confidence: 99%

“…Globally, the ETMEE is typified by a crisis of carbonate production in shallow-marine settings, an increase in organic matter content and a negative carbon isotope excursion (Jenkyns & Clayton 1997;Mattioli et al 2004Mattioli et al , 2009Hesselbo et al 2007;Suan et al 2008;Hermoso et al 2009;Al-Suwaidi et al 2010Littler et al 2010;Caruthers et al 2011). This event, so-called T-OAE (Toarcian Oceanic Anoxic Event) was originally considered as global on the basis of the prevailing record of organic-rich facies and anoxic conditions (Jenkyns 1988).…”

mentioning

confidence: 99%

New deep-water brachiopod resilient assemblage from the South-Iberian Palaeomargin (Western Tethys) and its significance for the brachiopod adaptive strategies around the Early Toarcian Mass Extinction Event

Baeza-Carratalá¹,

Reolid²,

Joral³

2017

Bull. Geosci.

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The Pliensbachian-Toarcian transition was a period of changes in long-term environmental conditions leading up to the Early Toarcian Mass Extinction Event (ETMEE), which resulted in a noticeable extinction and turnover in the marine biota. The westernmost Tethyan basins, especially the peri-Iberian platforms, provide an exceptional brachiopod record to better understand the adaptive strategies and the severe ecological effects of these faunas within the marine ecosystems. This event marks a critical interval in the evolutionary history of the Phylum Brachiopoda as two orders, the Athyridida and Spiriferinida, became extinct. Evolutionary patterns displayed by several taxa from these groups and some rhynchonellids typifying deep-water habitats are analyzed across this biotic crisis spanning several Mediterranean and NW-European basins. New work performed in La Cerradura section, a deep pelagic trough from the South-Iberian palaeomargin, reveals two new taxa (Koninckodonta sumuntanensis and Atychorhynchia falsiorigo) herein described. This newly documented fauna supports pre-extinction dwarfing and resilience in deep refugia linked to the ETMEE, and an episode of speciation which is interpreted in terms of a pre-extinction radiation. In the ETMEE repopulation phase an opportunistic strategy occurs typified by Soaresirhynchia bouchardi, and a case of homoplasy involving post-extinction pioneers (Elvis taxon) is detected. Similar adaptive strategies occurred associated with other mass extinctions such as the Permian/Triassic and the Cretaceous/Paleocene events, supporting a possible standard pattern in the response of the brachiopod fauna to such biotic crises and shedding light on the ecological effects of the mass extinction events. •

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Dramatic decrease of pelagic carbonate production by nannoplankton across the Early Toarcian anoxic event (T-OAE)

Cited by 141 publications

References 66 publications

Sinemurian–Pliensbachian calcareous nannofossil biostratigraphy and organic carbon isotope stratigraphy in the Paris Basin: Calibration to the ammonite biozonation of NW Europe

Sinemurian–Pliensbachian calcareous nannofossil biostratigraphy and organic carbon isotope stratigraphy in the Paris Basin: Calibration to the ammonite biozonation of NW Europe

Chemostratigraphy of the Toarcian oceanic anoxic event from the Ionian Zone, Greece

New deep-water brachiopod resilient assemblage from the South-Iberian Palaeomargin (Western Tethys) and its significance for the brachiopod adaptive strategies around the Early Toarcian Mass Extinction Event

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