Late Palaeocene–Early Eocene dinoflagellate cysts from the Turgay Strait, Kazakhstan; correlations across ancient seaways

Iakovleva, Alina I.; Brinkhuis, Henk; Cavagnetto, Carla

doi:10.1016/s0031-0182(01)00300-5

Cited by 103 publications

(60 citation statements)

References 9 publications

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“…In other Tethyan margin sequences, benthic foraminifer assemblages and lithological evidence also indicate transgression during the PETM [Speijer and Schmitz, 1998;Speijer and Wagner, 2002;Gavrilov et al, 2003]. Uppermost Paleocene sediments in the Sokolovsky Quarry section in the Turgay Strait, Kazakhstan, contain abundant Areoligera, with one exception, the PETM (identified on the basis of A. augustum), which contains the highest abundances of offshore dinocysts consistent with transgression [Iakovleva et al, 2001] (Figure 9). This interpretation is supported by the influx of open marine diatoms during the PETM, while uppermost Paleocene assemblages were dominated by shallow water taxa [Radionova et al, 2001;Oreshkina and Oberhänsli, 2003].…”

Section: Sluijs Et Al: Paleocene-eocene Eustatic Variationsmentioning

confidence: 88%

“…This likely corresponds to a highstand sequence found across New Jersey and referred to as pa-2 [Liu et al, 1997]. This sequence, in turn, may correlate with highstand sequences in the North Sea (Thanetian 4) [Powell et al, 1996] and the Turgay Strait [Iakovleva et al, 2001], although the chronostratigraphy in these regions remain poorly constrained [Powell et al, 1996;Bujak and Brinkhuis, 1998;Payne et al, 2005] (Figure 9). Nevertheless, this transgression appears to have been global in nature, thus representing a eustatic rise.…”

Section: Latest Paleocenementioning

confidence: 90%

“…Question marks indicate sequences of which precise dating is uncertain, and gray crosses indicate hiatuses. Study 1, this study; study 2 after Powell et al [1996] and Bujak and Brinkhuis [1998]; study 3, after Payne et al [2005]; study 4, after Iakovleva et al [2001]; study 5, after John et al [2008]; study 6, after Speijer and Morsi [2002]; and study 7, after Crouch and Brinkhuis [2005]. LST (2) , Lowstand Systems Tract Type 2.…”

Section: Mechanisms Of Eustatic Variation 551 Glacioeustacymentioning

confidence: 98%

“…Increase in terrigenous sediment supply for Bass River and Wilson Lake is from Sluijs et al [2007b] and John et al [2008]. Numbers refer to the following sites: site 1, Lomonosov Ridge, Arctic Ocean (SL, TS ); site 2, Doel, North Sea (SL [Steurbaut et al, 2003]); site 3, Basque Region, Bay of Biscay (SL, TS Pujalte and Schmitz, 2006]); site 4, Forada, Central Northern Tethys (TS [Giusberti et al, 2007]); site 5, Turgay Straight (SL [Iakovleva et al, 2001]); site 6, Lodo Formation, California (SL [John et al, 2008]); site 7, Gebel Duwi, Central Southern Tethys (SL [Speijer and Morsi, 2002]); site 8, Tawanui, Southwestern Pacific (TS [Crouch et al, 2003b], SL [Crouch and Brinkhuis, 2005]); and site 9, Clarence River Valley, Southwestern Pacific (TS PETM [Hollis et al, 2005], TS other presumed hyperthermals [Nicolo et al, 2007]). …”

Section: Sea Level Indicatorsmentioning

confidence: 99%

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Eustatic variations during the Paleocene‐Eocene greenhouse world

et al. 2008

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[1] We reconstruct eustatic variations during the latest Paleocene and earliest Eocene ($58-52 Ma). Dinoflagellate cysts, grain size fractions, and organic biomarkers in marine sections at four sites from three continents indicate an increased distance to the coast during the Paleocene-Eocene thermal maximum (PETM). The same trend is recognized in published records from other sites around the world. Together, the data indicate a eustatic rise during the PETM, beginning 20 to 200 ka before the globally recorded negative carbon isotope excursion (CIE) at $55.5 Ma. Although correlations are tentative, we recognize other global transgressions during Chrons C25n and C24n. The latter may be associated with Eocene Thermal Maximum 2 ($53.5 Ma) or the ''X''-event ($52 Ma). These results suggest a link between global sea level and ''hyperthermal'' intervals, potentially because of the melting of small alpine ice sheets on Antarctica, thermal expansion of seawater, or both. However, the early onset of sea level rise relative to the CIE of the PETM suggests contributions from other mechanisms, perhaps decreasing ocean basin volume, on sea level rise.

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Section: Sluijs Et Al: Paleocene-eocene Eustatic Variationsmentioning

confidence: 88%

Section: Latest Paleocenementioning

confidence: 90%

Section: Mechanisms Of Eustatic Variation 551 Glacioeustacymentioning

confidence: 98%

Section: Sea Level Indicatorsmentioning

confidence: 99%

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Eustatic variations during the Paleocene‐Eocene greenhouse world

et al. 2008

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“…These deposits were assigned to the Kremna Formation by Oszczypko & Oszczypko-Clowes (2014 Bujak & Mudge 1994, Powel et al 1996, Iakovleva et al 2001, Slimani et al 2012, Soliman 2012, Mohamed et al 2012, 2013, Mohamed & Wagreich 2013, Țabără et al 2017. Representatives of the genera Glaphyrocysta and Areoligera as well as A. homomorphum, and C. diversispinosum are common.…”

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confidence: 99%

The tectonics and stratigraphy of the transitional zone between the Pieniny Klippen Belt and Magura Nappe (Szczawnica area, Poland)

Jurewicz

Segit

2018

geol

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Abstract:The Pieniny Klippen Belt is a narrow, complex structure stretching along a tectonic boundary between the Central and Outer Carpathians. Its formation involved two main evolutionary stages, the first, related to Late Cretaceous-Paleocene folding and thrusting, and the second, associated with Miocene orogenic events in the Outer Carpathians. Interactions between the Pieniny Klippen Belt and Outer Carpathians during both the sedimentation and deformation stages have resulted in the establishment of a peri-klippen transitional zone (named the Šariš Transitional Zone), in which the tectonic deformation effects gradually decrease towards the north. The stratigraphy and tectonic position of this zone have been controversial for decades. The key stratigraphic problems concern 1) the lithologic identity and position of the Szlachtowa ("black flysch"), Opaleniec and Pieniny formations and 2) the relation of the Jarmuta Formation, associated mainly with the Šariš Transitional Zone, to the Szczawnica and Zarzecze formations of the Magura Nappe. We provide an early Paleogene dinoflagellate cyst stratigraphic record of deposits that, according to some recent reinterpretations, represent the Neogene "Kremna Formation". The legitimacy of new lithostratigraphic assignments of the "Kremna Formation" at Jaworki is put into question upon the basis of the primacy of units introduced for the same strata earlier.

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Hydrographic and ecologic implications of foraminiferal stable isotopic response across the U.S. mid‐Atlantic continental shelf during the Paleocene‐Eocene Thermal Maximum

et al. 2017

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We present new δ13C and δ18O records of surface (Morozovella and Acarinina) and thermocline dwelling (Subbotina) planktonic foraminifera and benthic foraminifera (Gavelinella, Cibicidoides, and Anomalinoides) during the Paleocene‐Eocene Thermal Maximum (PETM) from Millville, New Jersey, and compare them with three other sites located along a paleoshelf transect from the U.S. mid‐Atlantic coastal plain. Our analyses show different isotopic responses during the PETM in surface versus thermocline and benthic species. Whereas all taxa record a 3.6–4.0‰ δ13C decrease associated with the carbon isotope excursion, thermocline dwellers and benthic foraminifera show larger δ18O decreases compared to surface dwellers. We consider two scenarios that can explain the observed isotopic records: (1) a change in the water column structure and (2) a change in habitat or calcification season of the surface dwellers due to environmental stress (e.g., warming, ocean acidification, surface freshening, and/or eutrophication). In the first scenario, persistent warming during the PETM would have propagated heat into deeper layers and created a more homogenous water column with a thicker warm mixed layer and deeper, more gradual thermocline. We attribute the hydrographic change to decreased meridional thermal gradients, consistent with models that predict polar amplification. The second scenario assumes that environmental change was greater in the mixed layer forcing surface dwellers to descend into thermocline waters as a refuge or restrict their calcification to the colder seasons. Although both scenarios are plausible, similar δ13C responses recorded in surface, thermocline, and benthic foraminifera challenge mixed layer taxa migration.

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Late Palaeocene–Early Eocene dinoflagellate cysts from the Turgay Strait, Kazakhstan; correlations across ancient seaways

Cited by 103 publications

References 9 publications

Eustatic variations during the Paleocene‐Eocene greenhouse world

Eustatic variations during the Paleocene‐Eocene greenhouse world

The tectonics and stratigraphy of the transitional zone between the Pieniny Klippen Belt and Magura Nappe (Szczawnica area, Poland)

Hydrographic and ecologic implications of foraminiferal stable isotopic response across the U.S. mid‐Atlantic continental shelf during the Paleocene‐Eocene Thermal Maximum

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