New data on sedimentary waves on the western continental slope of the Caspian Sea

Левченко, О. В.; Roslyakov, A. G.; Polyakov, A. S.; Зверев, А. С.; Merklin, L. R.

doi:10.1134/s1028334x08040429

Cited by 6 publications

(8 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The high-resolution seismic reflection surveys revealed expressive erosional and depositional features on slopes and the rise of the Derbent Basin and in the middle part of the Caspian Sea [5,7,41]. These features had not been distinguished earlier as contourites because of the low resolution of air gun seismic profiling, and similar ones were considered here as slump or landslide features, tectonic folds, or creep deformations [9,32].…”

Section: Resultsmentioning

confidence: 99%

“…Possible accumulative and erosive sedimentary contourite features were first identified on the northern and especially western slopes of the Derbent Basin [5,41]. Its southern and eastern slopes are much less studied, but sedimentary features similar to the contourite ones appear to be observed there as well [6].…”

Section: Discussionmentioning

confidence: 99%

“…The expressive seafloor and subsurface undulating features, which are observed in the high-resolution seismic reflection profiles (Figures 4 and 5), were interpreted as sediment waves [43]. We call them SW Type 1; they are 300-1600 m (on average 1 km) in wavelength across the continental slope and 5-40 m high (on average 20-25 m).…”

Section: Western (Derbent) Slopementioning

confidence: 94%

“…The results obtained significantly clarified our understanding of the structure of the upper Pliocene-Quaternary sedimentary strata. It was these new data that made it possible to identify, for the first time, accumulative and erosive features in the Middle Caspian, similar to contourite ones [5][6][7][8]. This paper focuses on the description of the most prominent erosive and accumulative forms of bottom relief and the Late Cenozoic sedimentary cover of the Derbent Basin (DB) in the Middle Caspian Sea, as well as the processes responsible for the interaction of three different processes.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Contourite and Turbidite Features in the Middle Caspian Sea and Their Connection to Geohazards Derived from High-Resolution Seismic Data

Yutsis

Левченко

Putans

2022

JMSE

View full text Add to dashboard Cite

High fluvial input combined with specific topographic and oceanographic settings in the Caspian Sea create favorable conditions for contourite deposition. For the first time in its middle portion, contourite deposits have been observed in high-resolution seismic profiles. Various types of contourite drifts and mixed depositional systems have been revealed on the lower slope and in the adjacent basin, some of which are accompanied by sediment wave fields. The deposition of contourites or turbidites and their lateral distribution is controlled by sea-floor topography and oceanographic processes, as well as the modern activity of gravity flows downslope on the western Caucasian slope and in the channel system on the Mangyshlak Sill. The contourite drifts and sediment wave fields form several contourite depositional systems, which seem to merge in the Caspian contourite depositional complex. This occurs near the foot of slopes of the Derbent Basin and is related to the counterclockwise circum-Caspian current in the Middle Caspian Sea. The fact that the Caspian Sea is the largest lake in the world makes this region a significant area for research into the “lake contourites” issue. The Caspian Sea is an important oil-producing area, and sedimentary processes related to the contourite and turbidite can be a source of potential geohazards in the construction and exploitation of underwater engineering structures

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Western (Derbent) Slopementioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Contourite and Turbidite Features in the Middle Caspian Sea and Their Connection to Geohazards Derived from High-Resolution Seismic Data

Yutsis

Левченко

Putans

2022

JMSE

View full text Add to dashboard Cite

show abstract

“…Recently, a specific type of slope sediments was identified by seismic studies in the walls of Caspian depressions. They were studied in detail with a high resolution seismic acoustic technique at the Dagestan slope of the Central Caspian depression [6,17,22]. Two types of sediments with different reflection are identified on seismic profiles.…”

Section: Geological Structurementioning

confidence: 99%

Fossil facies of the Greater Caspian region

Свиточ

2015

Oceanology

View full text Add to dashboard Cite

The Pliocene-Pleistocene marine sediments of the Great Caspian region host various lithological fossil facies, which reflect specific sedimentation conditions caused by different structural-geomorphologic settings, tectonic regimes, climates, and hydrologies. The facies of shelf, epicontinental basins, ingression gulfs and estuaries, intermontane and mountainous basins, and deep sea depressions form a hierarchy of geo logical bodies from types to subtypes. Paragenetic associations of fossil facies, which form various series in space and along the section, are typical of marine sediments.

show abstract

On gravitational instability of quaternary sediments on the western slope of the Derbent Basin (Caspian Sea)

2009

View full text Add to dashboard Cite

New data on sedimentary waves on the western continental slope of the Caspian Sea

Cited by 6 publications

References 8 publications

Contourite and Turbidite Features in the Middle Caspian Sea and Their Connection to Geohazards Derived from High-Resolution Seismic Data

Contourite and Turbidite Features in the Middle Caspian Sea and Their Connection to Geohazards Derived from High-Resolution Seismic Data

Fossil facies of the Greater Caspian region

On gravitational instability of quaternary sediments on the western slope of the Derbent Basin (Caspian Sea)

Contact Info

Product

Resources

About