Rock magnetism and paleomagnetism of Maeotian deposits of the Popov Kamen reference section (Taman Peninsula)

Trubikhin, V. M.; Pilipenko, O. V.

doi:10.1134/s1069351311020066

Cited by 8 publications

(15 citation statements)

References 3 publications

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“…However, this does not disqualify the magnetostratigraphic results. The polarity results from Panagia are robust with clustered ChRM directions that define a complex pattern that can be correlated with the GPTS and that is in agreement with patterns documented at other sites throughout Paratethys for the end Khersonian-Maeotian interval 15 , 26 , 66 , 68 .…”

Section: Methodssupporting

confidence: 83%

Late Miocene megalake regressions in Eurasia

Palcu

Patina

Şandric

et al. 2021

Sci Rep

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The largest megalake in the geological record formed in Eurasia during the late Miocene, when the epicontinental Paratethys Sea became tectonically-trapped and disconnected from the global ocean. The megalake was characterized by several episodes of hydrological instability and partial desiccation, but the chronology, magnitude and impacts of these paleoenvironmental crises are poorly known. Our integrated stratigraphic study shows that the main desiccation episodes occurred between 9.75 and 7.65 million years ago. We identify four major regressions that correlate with aridification events, vegetation changes and faunal turnovers in large parts of Europe. Our paleogeographic reconstructions reveal that the Paratethys was profoundly transformed during regression episodes, losing ~ 1/3 of the water volume and ~ 70% of its surface during the most extreme events. The remaining water was stored in a central salt-lake and peripheral desalinated basins while vast regions (up to 1.75 million km2) became emergent land, suitable for development of forest-steppe landscapes. The partial megalake desiccations match with climate, food-web and landscape changes throughout Eurasia, although the exact triggers and mechanisms remain to be resolved.

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Section: Methodssupporting

confidence: 83%

Late Miocene megalake regressions in Eurasia

Palcu

Patina

Şandric

et al. 2021

Sci Rep

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“…Remarkably, the upper Maeotian pattern of both Popov Kamen and Zheleznyi Rog is very similar to those of Cerna and Cernișoara, being dominated almost entirely by a long normal polarity interval (P5n and Z2n in Figure 11). The lower/upper Maeotian transition closely corresponds in both sections to a reversed to normal polarity transition interpreted as the base of C3An (6.7 Ma; Trubikhin & Pilipenko, 2011;Rostovtseva and Rybkina, 2014). Correlating downwards result in two different age options for the Khersonian/Maeotian boundary: the polarity pattern of Zheleznyi Rog suggests a location in C3Br.1r at an age of 7.25 Ma; the pattern in Popov Kamen best fits to C3Br.3r at an age of 7.5 Ma (assuming that the short subchron C3Br.1n has been missed in the section; Filippova & Trubikhin, 2009).…”

Section: Euxinic Basinmentioning

confidence: 58%

“…The Popov Kamen and Zheleznyi Rog sections on the Taman Peninsula of the northern Black Sea Basin both comprise Khersonian, Maeotian, and Pontian sediments. They have been subject of multiple detailed magneto‐bio‐stratigraphic and radiometric dating studies (Krijgsman et al., ; Pevzner & Vangengeim, ; Pevzner, Lungu, Vangengeim, & Basilyan, ; Stoica, Krijgsman, Fortuin, & Gliozzi, ; Trubikhin, ; Trubikhin & Pilipenko, ; Vasiliev et al., ) but the age of the Khersonian/Maeotian boundary and the chronology of events during the Maeotian remain unclear. The base of the lower Maeotian is marked in both sections by a short‐reversed polarity interval, followed by a short normal polarity interval (P3r/P2n and Z1r/Z1n) and a long interval of reversed polarity (P4r/Z2r).…”

Section: Towards a Revised Late Miocene Age Model For The Eastern Parmentioning

confidence: 99%

“…A significant effort has previously been put in obtaining palaeomagnetic data from late Miocene sedimentary successions from the Eastern Paratethys (Figure 11f,g) (Filippova & Trubikhin, 2009;Pevzner & Chikovani, 1978;Pilipenko & Trubikhin, 2014;Trubikhin & Pilipenko, 2011;Vasiliev et al, 2004Vasiliev et al, , 2005Vasiliev et al, , 2011. The lithological successions of these sections, however, are in many cases incomplete, fragmented by several unconformities, which makes the correlations with the GPTS less straightforward (Figure 11).…”

Section: Miocene Age Model For the Eastern Paratethysmentioning

confidence: 99%

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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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“…Since its first description by Andrusov [ 45 ], this geological section has been extensively studied, using paleomagnetic, paleontological, and lithological methods of investigation [ 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 ]. The Popov Kamen section is located on the Black Sea coast of Taman Peninsula (45°16′01.8″ N, 36°61′97.6″ E, Russia) and comprises well-exposed Upper Sarmatian as well as Lower and Upper Maeotian sediments of the Eastern Paratethys.…”

Section: Methodsmentioning

confidence: 99%

Mummified Wood of Juniperus (Cupressaceae) from the Late Miocene of Taman Peninsula, South Russia

Stepanova¹,

Odintsova

Rybkina

et al. 2022

Plants

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Juniperus L. is the second-largest genus of conifers, having the widest distribution of all conifer genera. Its phytogeographic history is, however, obscure due to its very poor fossil record. We described a wood of Juniperus sp. from the lower Maeotian sediments of the Popov Kamen section, Taman Peninsula, South Russia, in order to clarify its taxonomic position shedding light on the phytogeographic history of the genus. This fossil wood was well-preserved by mummification, which allowed for it to be studied by the same methods as used for the anatomical examination of modern woods. The wood from the Popov Kamen section shows the greatest similarity to the extant Mediterranean species J. excelsa, belonging to the section Sabina. This is the first reliable macrofossil evidence of the sect. Sabina from Eurasia convincingly dated to the Miocene. The age of the mummified wood from the Popov Kamen section is consistent with molecular dating of diversification of the lineage comprising juniper species of the sect. Sabina from Europe, Asia and eastern Africa. The wood of Juniperus sp. has not been buried in situ, as it was found in the relatively deep-water marine sediments. The available coeval pollen series and macrofossils of Cupressaceae from the surrounding regions suggest that this wood was likely transferred by sea current from the northwestern side of the Black Sea, which was a part of the Eastern Paratethys.

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Rock magnetism and paleomagnetism of Maeotian deposits of the Popov Kamen reference section (Taman Peninsula)

Cited by 8 publications

References 3 publications

Late Miocene megalake regressions in Eurasia

Late Miocene megalake regressions in Eurasia

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

Mummified Wood of Juniperus (Cupressaceae) from the Late Miocene of Taman Peninsula, South Russia

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