Was the Black Sea Catastrophically Flooded during the Holocene?

2017 ◽

Author(s):

Nikolay Esin ◽

Vladimir Ocherednik ◽

Vladimir Ocherednik

Keyword(s):

Mathematical Model ◽

Sea Level ◽

Black Sea ◽

Aegean Sea ◽

The Black Sea ◽

Sea Level Changes ◽

The Holocene

A mathematical model describing the change in the Black Sea level depending on the Aegean Sea level changes is presented in the article. Calculations have shown that the level of the Black Sea has been repeating the course of the Aegean Sea level for the last at least 6,000 years. And the level of the Black Sea above the Aegean Sea level in the tens of centimeters for this period of time.

Download Full-text

Organic carbon accumulation in the Holocene sapropel of the Black Sea

Geology ◽

10.1130/0091-7613(1998)026<0107:ocaith>2.3.co;2 ◽

1998 ◽

Vol 26 (2) ◽

pp. 107 ◽

Cited By ~ 21

Author(s):

S. E. Calvert ◽

R. E. Karlin

Keyword(s):

Organic Carbon ◽

Black Sea ◽

Carbon Accumulation ◽

The Black Sea ◽

The Holocene

Download Full-text

Level of relics in high-mountain flora of isolated Fisht-Oshten Massif and Chernomorskaya Chain

Plant Biology and Horticulture: theory, innovation ◽

10.36305/2019-2-151-21-29 ◽

2019 ◽

pp. 21-29

Author(s):

I. N. Timukhin ◽

B. S. Tuniyev

Keyword(s):

Black Sea ◽

The Black Sea ◽

High Mountain ◽

The West ◽

The Caucasus ◽

The Holocene ◽

Alpine Species ◽

High Level ◽

First Time ◽

Relic Species

For the first time the level of relics of the high-mountain flora of the northwestern edge of the highlands of the Caucasus has been established. The Fisht-Oshten Massif and the Black Sea Chain have a uniquely high level of relics - 51.0% (617 species), with a predominance of Tertiary-relic species - Rt - 41.2% (498 species). The second largest representation is a group of Holocene relics - Rx - 7.3% (88 species), the minimum represented Pleistocene relics - Rg - 2.5% (31 species). The relic level of alpine species is one of the highest in the Caucasus and is 52.8% (338 species). Alpine species also have predominance of Pliocene relics - 46.7% (299 species), the number of glacial relics is 2.5% (16 species), the share of xerothermic relics - 3.6% (23 species). In the preservation of relic species revealed general trends, depending on the remoteness of local flora from the main diaspora on the Fisht-Oshten Massif and the modern area of the meadow belt. These trends persist in Tertiary relics, while other patterns are observed for glacial and Holocene relics. The number of glacial relics fades to the west, most clearly it can be seen in alpine species. The number of Holocene relics as much as possible on the edge areas (Fisht-Oshten Massif and Mt. Semashkho) and minimally on the central peaks of the Black Sea Chain, where the Holocene expansion of xerophyte plants was insignificant.

Download Full-text

The catastrophic landslide on the Black Sea coast which destroyed the Roman town of Bisonе (south of Kavarna town)

Review of the Bulgarian Geological Society ◽

10.52215/rev.bgs.2020.82.2.2 ◽

2021 ◽

Vol 82 (2) ◽

pp. 3-25

Author(s):

Dimcho Evstatiev ◽

Yordan Evlogiev ◽

Mariana Nedelcheva

Keyword(s):

Sea Level ◽

Black Sea ◽

The Black Sea ◽

Front Part ◽

The Holocene ◽

Black Sea Coast ◽

Geological Conditions ◽

Coastal Shelf ◽

The Rich ◽

Sea Coast

In the second half of the Ist century BC seismogenic landslide/rockfall tore off the front part of the Chirakman Cape in the western part of the Kavarna Bay. The rich quarters of the Roman city of Bisone slid down into the sea. According to data from underwater archaeology artifacts and walls of the settlement are found up to 80 m inside the sea. The paper considers the tectonic conditions, the geological-geomorphological structure of the landslide, the paleogeography of the coastal shelf during the Holocene and the hydrogeological and engineering geological conditions in the area. A reconstruction of the coastline and sea-level position during the catastrophic landslide has been developed. Stability analyses have been performed too.

Download Full-text

On the Oscillations of the Black Sea Level in the Holocene Period from an Archaeological Viewpoint

Troia and the Troad - Natural Science in Archaeology ◽

10.1007/978-3-662-05308-9_7 ◽

2003 ◽

pp. 95-104 ◽

Cited By ~ 1

Author(s):

Blagoje Govedarica

Keyword(s):

Sea Level ◽

Black Sea ◽

The Black Sea ◽

The Holocene ◽

Holocene Period

Download Full-text

Diagenetic transformation of organic matter in the Holocene sediments of the Black Sea: pyrolysis data

Russian Geology and Geophysics ◽

10.1016/j.rgg.2016.03.015 ◽

2017 ◽

Vol 58 (2) ◽

pp. 225-239 ◽

Cited By ~ 1

Author(s):

V.N. Melenevskii ◽

S.V. Saraev ◽

E.A. Kostyreva ◽

V.A. Kashirtsev

Keyword(s):

Organic Matter ◽

Black Sea ◽

The Black Sea ◽

The Holocene ◽

Holocene Sediments ◽

Transformation Of Organic Matter

Download Full-text

Comment on “Holocene sedimentation in the southwestern Black Sea: Interplay between riverine supply, coastal eddies of the Rim Current, surface and internal waves, and saline underflow through the Strait of Bosphorus” by O. Ankindinova, A. E. Aksu, R. N. Hiscott [Marine Geology, 420 (2020) 106092]

Review of the Bulgarian Geological Society ◽

10.52215/rev.bgs.2020.81.2.6 ◽

2020 ◽

Vol 81 (2) ◽

pp. 77-88

Author(s):

Ivan Genov

Keyword(s):

Phase Change ◽

Internal Waves ◽

Black Sea ◽

The Black Sea ◽

Marine Geology ◽

86Sr Ratio ◽

Ocean Water ◽

Principle Of Superposition ◽

The Holocene ◽

The Stability

Ankindinova et al. (2020) describe a series of hydrological events that have led to sedimentation and stratigraphic variations in the gradual sinking of the Black Sea shelf during the Holocene. A key aspect of the study is the attempt to provide a reliable stratigraphic basis for proving of a transgression in the basin throughout the Holocene. However, the conclusions of this approach run counter to the stratigraphic rules: redeposition and significant hiatus in the transgressive phase change of depth of sediment core location (M05-03P) – principle of superposition; merging of transgressive and regressive deposits into a common stratigraphic unit (contradicts the sequential stratigraphy). For this reason, the stability of the conclusion of Ankindinova et al. (2020) for the totally transgressive Holocene development of the Black Sea is doubtful. In addition, the study is based on the interpretation that the increase in the 87Sr /86Sr ratio is solely dependent on ocean water inflow, which is not always correct for enclosed and semi-enclosed basins.

Download Full-text

Fluvial response to rising levels of the Black Sea and to climate changes during the Holocene: Luminescence geochronology of the Sakarya terraces

The Holocene ◽

10.1177/0959683619831428 ◽

2019 ◽

Vol 29 (6) ◽

pp. 941-952 ◽

Cited By ~ 2

Author(s):

Mehmet Korhan Erturaç ◽

Eren Şahiner ◽

Cengiz Zabcı ◽

Hilal Okur ◽

Georgios S Polymeris ◽

...

Keyword(s):

Sea Level ◽

Black Sea ◽

Morphological Evolution ◽

Sediment Supply ◽

The Black Sea ◽

Mountain Range ◽

The Holocene ◽

Last Glacial ◽

Hydrological System ◽

Sakarya River

The Sakarya River is among the largest fluvial systems of the southern Black Sea basin, draining most of NW Anatolia. The river crosses the high relief of the Pontide mountain range through successive narrow gorges and strike-slip basins formed by the North Anatolian Fault (NAF) System. We have investigated this fluvial record along the course of the main river channel at its lower reaches. The study site is located south of the Adapazarı Basin, ~50 km inland from the Black Sea, where remnant floodplains are preserved as a three-step terrace staircase resulting from continuous uplift to the south of the NAF. The combination of high resolution mapping with a detailed luminescence (OSL and p-IR-IRSL) and radiocarbon geochronology has shed light on changes in the level of the Black Sea and in the hydrological system during the late Pleistocene to recent. The last glacial period is represented by the highest terrace (T3) indicating deposition during marine isotope stage (MIS) 3 in between two low stands of the Black Sea. Following a long-term erosional period initiated prior to last glacial maximum (LGM), the initiation of the deposition (T2) was synchronous with the proposed catastrophic sea level rise of the Black Sea (cal. C14 9.3 ka BP) which continued throughout the Holocene until the Roman warm period (1.8 ka BP). The late-Holocene to recent morphological evolution of the region is marked with two sequential erosional and depositional (T1 and T0) periods, which can be correlated with the well-documented historical climate shifts affecting the hydrological system. These results reveal that the erosional and depositional periods on the Sakarya River floodplain are controlled by major sea level changes and climatically induced fluctuations in discharge and sediment supply.

Download Full-text