Late Pleistocene to Holocene evolution of the Emba Delta, Kazakhstan, and coastline of the north-eastern Caspian Sea: Sediment, ostracods, pollen and dinoflagellate cyst records

Richards, Keith; Mudie, Peta J.; Rochon, André; Athersuch, John; Bolikhovskaya, N.S.; Hoogendoorn, R.M.; Verlinden, Vincent

doi:10.1016/j.palaeo.2016.12.035

Cited by 27 publications

(11 citation statements)

References 57 publications

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“…6B, C). The dominance of the Caspian ostracod species Bacuniella dorsoarcuata (Boomer et al, 2005;Boomer, 2012;Richards et al, 2017) in the Black Sea during that period corroborates the suggested communication between the Black and Caspian Seas, as long as this is not a remnant species from the preceding Caspian overflows. Further faunal evidence for water intrusions from the Caspian Sea into the Black Sea comes from Caspian mollusc assemblages detected in Black Sea sediments during that time (Zubakov, 1988).…”

Section: Bswp-6-1 180-167 Ka Bp (Mis 6e-d)supporting

confidence: 80%

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Major hydrological shifts in the Black Sea “Lake” in response to ice sheet collapses during MIS 6 (130–184 ka BP)

Wegwerth

Dellwig

Wulf

et al. 2019

Quaternary Science Reviews

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Black Sea "Lake" record between 184 ka BP and 124 ka BP (MIS 6-5e) is presented.• Main parameters are δ 18 O, 87 Sr/ 86 Sr, Sr/Ca, and Mg/Ca of ostracods.• Higher temperatures and stadial-interstadial variability during early MIS 6.• Three long-term meltwater periods during insolation maxima and retreated ice sheets.• Caspian-Black Sea connection during meltwater periods, but different sources/pathways.

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Section: Bswp-6-1 180-167 Ka Bp (Mis 6e-d)supporting

confidence: 80%

“…between 168.5 ka BP and 180 ka BP. This species may have its origin in the Caspian Sea (Olteanu, 1978;Boomer et al, 2005;Boomer, 2012;Richards et al, 2017). Since ca.…”

Section: Ostracod Geochemistry and Isotopic Compositionmentioning

confidence: 99%

Major hydrological shifts in the Black Sea “Lake” in response to ice sheet collapses during MIS 6 (130–184 ka BP)

Wegwerth

Dellwig

Wulf

et al. 2019

Quaternary Science Reviews

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“…Bobrov et al, 1983;Alyoshina, 1972, 1978). Dinocysts and NPP were identified from numerous sources including Bakrač et al (2012), Baltes (1971), Evitt et al (1985), Marret et al (2004), Mudie et al (2011) , Mudie et al (2017Mudie et al ( , 2018, Richards et al (2014Richards et al ( , 2017, Soliman and Riding (2017), Sütő-Szentai (1982, 2010 and Wall et al (1973).…”

Section: Methodsmentioning

confidence: 99%

Palynology and micropalaeontology of the Pliocene - Pleistocene transition in outcrop from the western Caspian Sea, Azerbaijan: Potential links with the Mediterranean, Black Sea and the Arctic Ocean?

Richards

Baak

Athersuch³

et al. 2018

Palaeogeography, Palaeoclimatology, Palaeoecology

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New palynological, ostracod and foraminiferal data are presented from a long outcrop section in the Jeirankechmez river valley, Azerbaijan, near the western coast of the Caspian Sea. The interval studied includes the upper part of the Pliocene Productive Series and overlying Plio-Pleistocene Akchagylian (Akchagyl) and Apsheronian (Apsheron) regional stages. Productive Series sediments were deposited in a closed fluvio-lacustrine basin, isolated from any marine influence. The onset of Akchagyl deposition is marked by a lithological change associated with a significant flooding event that, at its maximum extent, reached the Sea of Azov and into present-day Iran, Kazakhstan, Turkmenistan and Russia. At the Jeirankechmez locality, the lowermost beds of the Akchagyl contain predominantly freshwater assemblages with very minimal marine or brackish content showing that the onset of Akchagyl deposition was not a marine induced event. Reworked Mesozoic palynomorphs occur frequently in this lowermost interval, including the reworked pollen taxa Aquilapollenites-Triprojectus that were eroded from the north or northeast. Significant marine influence is evident ca. 30 m above the base of the Akchagyl in the studied outcrop, marked by the 'Cassidulina Beds' which contain a distinct but low diversity assemblage of foraminifera that occurs widely and can be correlated in many parts of the greater Caspian region. Dinoflagellate cysts (dinocysts) in the marine interval include frequent specimens very similar to Algidasphaeridium capillatum (Matsuoka and Bujak), a species only previously recorded from the northern Bering Sea. The combined evidence from these dinocysts and foraminifera suggests that a marine (i.e. seaway) connection existed briefly between the Arctic Ocean and the Caspian Sea at the very end of the Pliocene. Re-examination of core material from the Adriatic Sea shows that Cassidulina reniforme (Nørvang) was present in the Mediterranean during and shortly after the Last Glacial Maximum. The possibility that the end Pliocene marine incursion came from the Mediterranean via the Black Sea region to the Caspian Sea cannot be entirely ruled out but is considered unlikely. Biometric analyses are applied to obtain a better understanding of the palaeoenvironmental significance of the assemblages dominated by cassidulinids. An interval more than 300 m thick is assigned to the Apsheron regional stage on the basis of predominantly brackish ostracod and dinocyst associations. The dinocysts are of 'Peri-Paratethyan' affinity and closely resemble species first described from Miocene and Pliocene sediments in the Pannonian and Dacic basins of Eastern Europe. Many similarities exist in the microplankton records (dinocysts and acritarchs) between the Caspian Sea, the Black Sea and Central Paratethys.

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“…A similar status is allocated to this region for the Pliocene up to the Late Pleistocene (Shatilova et al 2011;Biltekin et al 2015). For example, the occurrence of Glyptostrobus in the region during the Late Pleistocene and Holocene has been reported by Biltekin et al (2015) and Richards et al (2017) on the shorelines of the Black and Caspian seas, respectively.…”

Section: Introductionmentioning

confidence: 73%

Late Quaternary vegetation and climate of SE Europe–NW Asia according to pollen records in three offshore cores from the Black and Marmara seas

Popescu¹,

Jiménez‐Moreno

Klotz

et al. 2021

Palaeobio Palaeoenv

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Late Pleistocene to Holocene evolution of the Emba Delta, Kazakhstan, and coastline of the north-eastern Caspian Sea: Sediment, ostracods, pollen and dinoflagellate cyst records

Cited by 27 publications

References 57 publications

Major hydrological shifts in the Black Sea “Lake” in response to ice sheet collapses during MIS 6 (130–184 ka BP)

Major hydrological shifts in the Black Sea “Lake” in response to ice sheet collapses during MIS 6 (130–184 ka BP)

Palynology and micropalaeontology of the Pliocene - Pleistocene transition in outcrop from the western Caspian Sea, Azerbaijan: Potential links with the Mediterranean, Black Sea and the Arctic Ocean?

Late Quaternary vegetation and climate of SE Europe–NW Asia according to pollen records in three offshore cores from the Black and Marmara seas

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