Holocene deposits in the Mangyshlak Peninsula, North Caspian Sea region

Bezrodnykh, Yu. P.; Deliya, S. V.; Romanyuk, B. F.; Fedorov, V. I.; Сорокин, В.М.; Лукша, В. Л.

doi:10.1134/s0869593814040030

Cited by 11 publications

(2 citation statements)

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“…It is possible that the spore-pollen spectra of the Mergenevo section indeed characterize a fragment in the Late Khazarian evolution of the Pleistocene vegetation and climate of the Northern Caspian Sea Region. Two spore-pollen spectra from the confirmed Upper Khazarian sediments, indicating steppe natural conditions, were obtained by Rybakova [42].…”

Section: Introductionmentioning

confidence: 99%

Environmental Variability of the Northern Caspian Sea during Khazarian Epoch (Based on Drilling Data)

Bolikhovskaya,

Yanina,

Sorokin

2024

Quaternary

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The objective of our work was to reconstruct transgressive-regressive events in the Northern Caspian Sea during the Khazarian epoch of its Pleistocene history to determine the natural conditions of the development of the basins and to assess their response to climate change. This work is based onstudies of the sedimentary formations of the upper part of the Quaternary sequence in the Northern Caspian Sea. The borehole was drilled in the eastern part of the depression Shirotnaya, the sea depth was 11.9 m, and the depth of drilling was 56.4 m. The core was subjected to lithological, malacological, and palynological analysis. This paper discusses the results related to the interval 56.0–26.6 m. The structure, facies-lithological, and malacological composition of the core capture three transgressive stages of the Caspian, namely the Early Khazarian, Late Khazarian, and Hyrcanian stages, separated by regressive phases. The representative spore-pollen assemblages made it possible to carry out the climatic and stratigraphic subdivision of the studied Khazarian deposits and to suggest a provisional version of the history of climatic and phytocenotic events during the sedimentation period. The results of our studies have introduced new discussion points into the paleogeography of the Northern Caspian Sea.

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Section: Introductionmentioning

confidence: 99%

Environmental Variability of the Northern Caspian Sea during Khazarian Epoch (Based on Drilling Data)

Bolikhovskaya,

Yanina,

Sorokin

2024

Quaternary

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“…ka).The Lower Khvalynian Subhorizon consists of two lithologically different parts. The upper part 8-10 m thick is composed of clays with variably thick sand intercalations, which were deposited at depths of approximately 100 m[2]. Its lower part is represented by a member (2.5-5.0 m thick) of sediments enriched with shelly material.…”

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confidence: 99%