Paleontology and stratigraphy of the Middle–Upper Miocene of the Taman Peninsula: Part 1. Description of key sections and benthic fossil groups

Попов, С. В.; Rostovtseva, Yu. V.; Fillippova, N. Yu.; Golovina, L. A.; Radionova, E. P.; Goncharova, I. A.; Vernyhorova, Yuliia; Dykan, N.I.; Pinchuk, T. N.; Iljina, L. B.; Koromyslova, A. V.; Kozyrenko, T. M.; Nikolaeva, Irina; Viskova, L. A.

doi:10.1134/s0031030116100014

Cited by 47 publications

(101 citation statements)

References 19 publications

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“…The Maeotian transgression occurs in a time of relatively low subsidence and is therefore most likely climatically induced. Our biostratigraphic records (Figure ) show a loss in salinity as the transgression progresses, in agreement with results from the Black Sea region (Popov et al., ). This is opposite to the expected effect of a marine transgression by Mediterranean waters through the establishment of a reconnection with the Mediterranean.…”

Section: Discussionsupporting

confidence: 91%

The end of the Great Khersonian Drying of Eurasia: Magnetostratigraphic dating of the Maeotian transgression in the Eastern Paratethys

et al. 2018

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Central Eurasia underwent significant palaeoclimatic and palaeogeographic transformations during the middle to late Miocene. The open marine ecosystems of the Langhian and Serravallian seas progressively collapsed and were replaced in the Tortonian by large endorheic lakes. These lakes experienced major fluctuations in water level, directly reflecting the palaeoclimatic conditions of the region. An extreme lowstand of the Eastern Paratethys lake (−300 m) during the regional Khersonian stage reveals a period of intensely dry conditions in Central Eurasia causing a fragmentation of the Paratethys region. This period of “Great Drying” ended by a climate change towards more humid conditions at the base of the Maeotian stage, resulting in a large transgressive event that reconnected most of the Paratethyan basins. The absence of a robust time frame for the Khersonian–Maeotian interval hampers a direct correlation with the global records and complicates a thorough understanding of the underlying mechanisms. Here we present a new chronostratigraphic framework for the Khersonian and Maeotian deposits of the Dacian Basin of Romania, based on integrated magneto‐biostratigraphic studies on long and continuous sedimentary successions. We show the dry climate conditions in the Khersonian start at 8.6–8.4 Ma. The Khersonian/Maeotian transition is dated at 7.65–7.5 Ma, several million years younger than previous estimates. The Maeotian transgression occurs later (7.5–7.4 Ma) in more marginal and shallower basins, in agreement with the time transgressive character of the flooding. In addition, we date a sudden water level drop of the Eastern Paratethys lake, the Intra‐Maeotian Event (IME), at 6.9 Ma, and hypothesize that this corresponds to a reconnection phase with the Aegean basin of the Mediterranean. Finally, we discuss the potential mechanisms explaining the particularities of the Maeotian transgression and conclude that the low salinity and the seemingly “marine influxes” most likely correspond to episodes of intrabasinal mixing in a gradual and pulsating transgressive setting.

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Section: Discussionsupporting

confidence: 91%

The end of the Great Khersonian Drying of Eurasia: Magnetostratigraphic dating of the Maeotian transgression in the Eastern Paratethys

et al. 2018

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“…The Kerch foraminiferal assemblages are similar to those from the relatively deep-water Konkian sediments of the Taman Peninsula and the Western Ciscaucasus (e.g. BOG-DANOWICZ, 1965;GOLOVINA et al, 2009;VERNIGOROVA et al, 2006;POPOV et al, 2016;PALCU et al, 2017).…”

Section: Biostratigraphic Reconstruction Of the Konkian Deposits Of Tmentioning

confidence: 64%

“…3). This regular trend can be observed in some relatively deep Konkian deposits (clays and marls) of the eastern part of the Crimean Peninsula, the Kerch Peninsula and the Ciscaucasus (KRASHENINNIKOV, 1959;BOGDANOWICZ, 1965;VERNYHOROVA, 2015a;POPOV et al, 2016;PALCU et al, 2017). This stage is clearly visible only in the most complete Konkian sections.…”

Section: Criteria For Determination Of the Initial (Early) And Final mentioning

confidence: 83%

“…Therefore, additional criteria for determination of the development stages of the Konkian basin are needed. Experience in the study of foraminifera and molluscs in the Konkian deposits from different areas of the Southern Ukraine, the Ciscaucasus and the Mangyshlak Peninsula (VERNIGOROVA et al, 2006, 2009VERNIGOROVA, 2008VERNIGOROVA, , 2009VERNIGOROVA, , 2012GOLOVINA et al, 2009;BRATISHKO et al, 2015) allows the definition of additional criteria for determination of the initial (early) and final (late) development stages of the Konkian basin (VERNY-HOROVA, 2015a;POPOV et al, 2016).…”

Section: Criteria For Determination Of the Initial (Early) And Final mentioning

confidence: 99%

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Biostratigraphy of the Konkian (Middle Miocene of the Eastern Paratethys) deposits of Southern Ukraine based on foraminifera

Vernyhorova¹

2018

Geol Cro

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The Konkian (Middle Miocene) foraminiferal assemblages and molluscs from five Wells situated in Southern Ukraine were studied in order to correlate the palaeoecology and biostratigraphy of the coeval palaeobasins with different environmental conditions. The article contains comprehensive analysis of controversial issues of the Konkian stratigraphy of the Eastern Paratethys and additional keys for determination of Konkian development phases by foraminifera and molluscs. Five stenohaline normal-marine, two euryhaline and one mixed foraminiferal assemblage were identified in different levels in the investigated wells with the analysis of their accordance to different molluscs assemblages. The study defines an isochronous foraminiferal assemblage for some wells, suggests a palaeoecological and stratigraphic reconstuction of the middle Miocene sediments in the Eastern Black Sea Region and recognizes two models of development of the Konkian foraminiferal assemblages. These models show the differences between environmental conditions in the shallow-water basin of the Eastern Black Sea Region and deeper water basin of the Kerch Peninsula at that time. While the Eastern Black Sea Region was influenced by frequent and abrupt changes in environmental conditions during almost all Konkian time, a relatively deeper basin of the Kerch Peninsula had a successive phase. The late Konkian time created similar depositional conditions for both basins. certain species of mollusсs were traced in sections, then these deposits were defined as the same age and such mollusc associations were identified as "Beds with molluscs" (e.g. ANDRUSOV, 1917; ARKHANGUELSKY, 1930). Several "Beds with molluscs" were determined in the Konkian deposits: Beds with Ve nus konkensis in the Northern Black Sea Region of the Southern Ukraine (SOKOLOW, 1899), were named later as the Veselyanka Beds by MERKLIN (1953); the Pholadidae Beds on the Kerch Peninsula of the Southern Ukraine (ANDRUSOV, 1917); the Kartvel Beds in Georgia (DAVITASHVILY, 1930); the Sartagan Beds in Transcaspian (ZHIZHCHENKO, 1937a, b). The Kartvel Beds are characterized (Fig. 1) by Pholadidae (Barnea pseu doustjurtensis BOGATCHEV, B. ustjurtensis (EICHWALD), B. kubanica (ZHIZHCHENKO) B. scrinia (BOGATSCHEV) etc.); the Sartagan Beds are defined as deposits with a rich marine stenohaline Konkian mollusc fauna; the Veselyanka Beds are defined as deposits with euryhaline Konkian molluscs (MERKLIN, 1953; VERESHAGIN & MIRONOVA, 1982; MURATOV & NEVESSKAYA, eds., 1986). Later, such Beds with molluscs were found in the Konkian of other areas of the Eastern Paratethys (e.g. VARENTSOV, 1950; MERKLIN, 1953; MURATOV & NEVESSKAYA, eds., 1986). Shallow-water Konkian deposits often comprise Beds with Ervilia trigonula SOKOLOV or Beds with E. trigonula and Barnea pseudoustjurtensis, B. kubanica in the Southern Ukraine (MOLYAVKO, 1960; BARG, 1969). Therefore, they were called the "Ervilia-Pholadidae Beds" and were also considered as Kartvel Beds (BARG, 1969). The age of the Kartvel Beds has been under discus...

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“…On the one hand, the Taman Peninsula boasts by diverse geoheritage. The most promising and globally-important features of the Taman Peninsula are mud volcanoes [42,43] and representative sections of the Miocene deposits [44]. If so, the coastal geosites should be managed together with the other geosites of the peninsula.…”

Section: Discussionmentioning

confidence: 99%

Coastal Peloids as Geological Heritage: Evidence from the Taman Peninsula (Southwestern Russia)

Fedorov

Гарькуша

Trubnik

et al. 2019

Water

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The coastal peloidis a peculiar and poorly-studied geological substance. Peloids occurin the Bugaz, Kiziltash, and Vityazevolimans and the Chemburka Lake on the southern coast of the Taman Peninsula. The studied peloids are dark-colored mud enriched in hydrogen sulfide and methane and constitute the uppermost 10–20 cm of bottom sediments. Being geologically unique, the coastal peloids of the Taman Peninsula can be recognized as ageoheritage site. Their uniqueness is linked to sediment type, biogeochemical processes, economic value, and depositional environment. The most typical peloids are found in the BugazLiman and the Chemburka Lake, proposed as geosites. The recognized coastal geoheritage site can be used for the purposes of science, education, and tourism, and its utility seems to be especially high because of its close location to the big resort area of Anapa. It appears to be important to balance management of this geoheritagesite with peloid extraction for balneological purposes. The studied coastal muds should be involved into the regional planning programs aimed at sustainable development (international experience and, particularly, some examples from the British coasts should be taken into consideration). Particularly, it is necessary to put peloid use into the context of regional planning and sustainable natural resource management.

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Paleontology and stratigraphy of the Middle–Upper Miocene of the Taman Peninsula: Part 1. Description of key sections and benthic fossil groups

Cited by 47 publications

References 19 publications

The end of the Great Khersonian Drying of Eurasia: Magnetostratigraphic dating of the Maeotian transgression in the Eastern Paratethys

The end of the Great Khersonian Drying of Eurasia: Magnetostratigraphic dating of the Maeotian transgression in the Eastern Paratethys

Biostratigraphy of the Konkian (Middle Miocene of the Eastern Paratethys) deposits of Southern Ukraine based on foraminifera

Coastal Peloids as Geological Heritage: Evidence from the Taman Peninsula (Southwestern Russia)

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