Caspian Sea Geohazard Areas

Caspian Sea geohazard aréas (Russian sector) Putans Victoria P.P Shirshov Oceanotogy Inst., RAS High-resolution seišmic data shows distinct zonation of North aad Middle Caspian sea (Russian sector). Bright spots (gas) Multiples In the north are sitùated shelf plains with plenty of gas- saturated layers (fig.1) and humeróus palèochannels (fig.2), These are geohazards for exploration constructions because of possible slumping and construction corrosion. 30m Paleochannel 1m 10m -50m- Fig 2 Palescbannel on the shelf 1 km F tapots aand mutiples Channel Southward, the shelf break and slope mark Mangyshlag Threshold with creep area (fig.3) and great fan 2km Sediment waves system with big channels. Creep evidences solifluction, while several sediment waves fields on channel levees (fig.4) evidences of active hydrodynamics. Both processes are of danger for any constructions. niga Creep on Mangyshia heeshold Fig.4 Sediment waves on channel e Western slope of the Central Basin has undutating Seismoacoustic sections show a long- living (700kyr) field of sediment waves; the sequence is wedge-formed (fig.7) and regression history."The age from correlation with regional seismic "markers". Short geological cores (4m) show mixed material of different grain size and origin (fig.5): Modeling of plastic-deformation shows that the wedge in the -whole Nevertheless on the second "break" of the regional slope modern micro- slumping activity is occuring (fig.6). relief (fig.5). transgréssion- obtained represents Modern sedimentation Medern erosion stable. A Figs Derbent sedimenf waves insig pe The mjero-s g de second break of Derbent slope 1km CONCLUSIONS Fig.7 Derbent slope >zones of different geological'environment provide different geohazards. As a result, the map of geohazards has been obtained (fig.8). Khvalyńskhe HF pipeline construction will face a lot of problems; it is necessary to obtain more data about current pattern and bottom relief.- - the Caspian Sea is a natural polygon for better understanding of inter-dependent sedimentation processes. Mahaghkala Centralnaya H Fig.5,6,7 Dérbent valama HF Pig Mag of general geoharardour in Cental Casplan For any questions and possible collaboration please contact [email protected] Caspian Sea geohazard aréas (Russian sector) Putans Victoria P.P Shirshov Oceanotogy Inst., RAS High-resolution seišmic data shows distinct zonation of North aad Middle Caspian sea (Russian sector). Bright spots (gas) Multiples In the north are sitùated shelf plains with plenty of gas- saturated layers (fig.1) and humeróus palèochannels (fig.2), These are geohazards for exploration constructions because of possible slumping and construction corrosion. 30m Paleochannel 1m 10m -50m- Fig 2 Palescbannel on the shelf 1 km F tapots aand mutiples Channel Southward, the shelf break and slope mark Mangyshlag Threshold with creep area (fig.3) and great fan 2km Sediment waves system with big channels. Creep evidences solifluction, while several sediment waves fields on channel levees (fig.4) evidences of active hydrodynamics. Both processes are of danger for any constructions. niga Creep on Mangyshia heeshold Fig.4 Sediment waves on channel e Western slope of the Central Basin has undutating Seismoacoustic sections show a long- living (700kyr) field of sediment waves; the sequence is wedge-formed (fig.7) and regression history."The age from correlation with regional seismic "markers". Short geological cores (4m) show mixed material of different grain size and origin (fig.5): Modeling of plastic-deformation shows that the wedge in the -whole Nevertheless on the second "break" of the regional slope modern micro- slumping activity is occuring (fig.6). relief (fig.5). transgréssion- obtained represents Modern sedimentation Medern erosion stable. A Figs Derbent sedimenf waves insig pe The mjero-s g de second break of Derbent slope 1km CONCLUSIONS Fig.7 Derbent slope >zones of different geological'environment provide different geohazards. As a result, the map of geohazards has been obtained (fig.8). Khvalyńskhe HF pipeline construction will face a lot of problems; it is necessary to obtain more data about current pattern and bottom relief.- - the Caspian Sea is a natural polygon for better understanding of inter-dependent sedimentation processes. Mahaghkala Centralnaya H Fig.5,6,7 Dérbent valama HF Pig Mag of general geoharardour in Cental Casplan For any questions and possible collaboration please contact [email protected] Caspian Sea geohazard aréas (Russian sector) Putans Victoria P.P Shirshov Oceanotogy Inst., RAS High-resolution seišmic data shows distinct zonation of North aad Middle Caspian sea (Russian sector). Bright spots (gas) Multiples In the north are sitùated shelf plains with plenty of gas- saturated layers (fig.1) and humeróus palèochannels (fig.2), These are geohazards for exploration constructions because of possible slumping and construction corrosion. 30m Paleochannel 1m 10m -50m- Fig 2 Palescbannel on the shelf 1 km F tapots aand mutiples Channel Southward, the shelf break and slope mark Mangyshlag Threshold with creep area (fig.3) and great fan 2km Sediment waves system with big channels. Creep evidences solifluction, while several sediment waves fields on channel levees (fig.4) evidences of active hydrodynamics. Both processes are of danger for any constructions. niga Creep on Mangyshia heeshold Fig.4 Sediment waves on channel e Western slope of the Central Basin has undutating Seismoacoustic sections show a long- living (700kyr) field of sediment waves; the sequence is wedge-formed (fig.7) and regression history."The age from correlation with regional seismic "markers". Short geological cores (4m) show mixed material of different grain size and origin (fig.5): Modeling of plastic-deformation shows that the wedge in the -whole Nevertheless on the second "break" of the regional slope modern micro- slumping activity is occuring (fig.6). relief (fig.5). transgréssion- obtained represents Modern sedimentation Medern erosion stable. A Figs Derbent sedimenf waves insig pe The mjero-s g de second break of Derbent slope 1km CONCLUSIONS Fig.7 Derbent slope >zones of different geological'environment provide different geohazards. As a result, the map of geohazards has been obtained (fig.8). Khvalyńskhe HF pipeline construction will face a lot of problems; it is necessary to obtain more data about current pattern and bottom relief.- - the Caspian Sea is a natural polygon for better understanding of inter-dependent sedimentation processes. Mahaghkala Centralnaya H Fig.5,6,7 Dérbent valama HF Pig Mag of general geoharardour in Cental Casplan For any questions and possible collaboration please contact [email protected] Caspian Sea geohazard aréas (Russian sector) Putans Victoria P.P Shirshov Oceanotogy Inst., RAS High-resolution seišmic data shows distinct zonation of North aad Middle Caspian sea (Russian sector). Bright spots (gas) Multiples In the north are sitùated shelf plains with plenty of gas- saturated layers (fig.1) and humeróus palèochannels (fig.2), These are geohazards for exploration constructions because of possible slumping and construction corrosion. 30m Paleochannel 1m 10m -50m- Fig 2 Palescbannel on the shelf 1 km F tapots aand mutiples Channel Southward, the shelf break and slope mark Mangyshlag Threshold with creep area (fig.3) and great fan 2km Sediment waves system with big channels. Creep evidences solifluction, while several sediment waves fields on channel levees (fig.4) evidences of active hydrodynamics. Both processes are of danger for any constructions. niga Creep on Mangyshia heeshold Fig.4 Sediment waves on channel e Western slope of the Central Basin has undutating Seismoacoustic sections show a long- living (700kyr) field of sediment waves; the sequence is wedge-formed (fig.7) and regression history."The age from correlation with regional seismic "markers". Short geological cores (4m) show mixed material of different grain size and origin (fig.5): Modeling of plastic-deformation shows that the wedge in the -whole Nevertheless on the second "break" of the regional slope modern micro- slumping activity is occuring (fig.6). relief (fig.5). transgréssion- obtained represents Modern sedimentation Medern erosion stable. A Figs Derbent sedimenf waves insig pe The mjero-s g de second break of Derbent slope 1km CONCLUSIONS Fig.7 Derbent slope >zones of different geological'environment provide different geohazards. As a result, the map of geohazards has been obtained (fig.8). Khvalyńskhe HF pipeline construction will face a lot of problems; it is necessary to obtain more data about current pattern and bottom relief.- - the Caspian Sea is a natural polygon for better understanding of inter-dependent sedimentation processes. Mahaghkala Centralnaya H Fig.5,6,7 Dérbent valama HF Pig Mag of general geoharardour in Cental Casplan For any questions and possible collaboration please contact [email protected] Caspian Sea geohazard aréas (Russian sector) Putans Victoria P.P Shirshov Oceanotogy Inst., RAS High-resolution seišmic data shows distinct zonation of North aad Middle Caspian sea (Russian sector). Bright spots (gas) Multiples In the north are sitùated shelf plains with plenty of gas- saturated layers (fig.1) and humeróus palèochannels (fig.2), These are geohazards for exploration constructions because of possible slumping and construction corrosion. 30m Paleochannel 1m 10m -50m- Fig 2 Palescbannel on the shelf 1 km F tapots aand mutiples Channel Southward, the shelf break and slope mark Mangyshlag Threshold with creep area (fig.3) and great fan 2km Sediment waves system with big channels. Creep evidences solifluction, while several sediment waves fields on channel levees (fig.4) evidences of active hydrodynamics. Both processes are of danger for any constructions. niga Creep on Mangyshia heeshold Fig.4 Sediment waves on channel e Western slope of the Central Basin has undutating Seismoacoustic sections show a long- living (700kyr) field of sediment waves; the sequence is wedge-formed (fig.7) and regression history."The age from correlation with regional seismic "markers". Short geological cores (4m) show mixed material of different grain size and origin (fig.5): Modeling of plastic-deformation shows that the wedge in the -whole Nevertheless on the second "break" of the regional slope modern micro- slumping activity is occuring (fig.6). relief (fig.5). transgréssion- obtained represents Modern sedimentation Medern erosion stable. A Figs Derbent sedimenf waves insig pe The mjero-s g de second break of Derbent slope 1km CONCLUSIONS Fig.7 Derbent slope >zones of different geological'environment provide different geohazards. As a result, the map of geohazards has been obtained (fig.8). Khvalyńskhe HF pipeline construction will face a lot of problems; it is necessary to obtain more data about current pattern and bottom relief.- - the Caspian Sea is a natural polygon for better understanding of inter-dependent sedimentation processes. Mahaghkala Centralnaya H Fig.5,6,7 Dérbent valama HF Pig Mag of general geoharardour in Cental Casplan For any questions and possible collaboration please contact [email protected]