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Gravity-induced deformation on the north flank and floor of the sporadhes basin of the North Aegean sea trough

Gravity-induced deformation on the north flank and floor of the sporadhes basin of the North Aegean sea trough
Gravity-induced deformation on the north flank and floor of the sporadhes basin of the North Aegean sea trough
PDR and continuous seismic profiling surveys in the Sporadhes basin (the western part of the North Aegean sea trough) reveal active gravity-induced deformation of the postorogenic sedimentary sequence. Different deformational patterns in the uppermost sedimentary layers of the flanks and floor of the basin suggest that the layers are deformed by several gravity-induced processes including slumping, sliding and creep contemporaneous with sediment deposition.

Antithetic faulting on the northern flank of the basin (the Thermaicos slope) results from downslope creep of surface layers over deeper tilted bedding planes. This process is a consequence of progressive slope development associated with the evolution of the Sporadhes basin. The morphology of the sea floor and the deformation of the upper layers clearly reflect synsedimentary tectonics in a subsiding basin environment.
0025-3227
289-302
Ferentinos, George
abacdc6a-8c4d-41c4-9a21-ce4eee70802d
Brooks, Michael
450c4400-2f26-4cf9-86e3-8588a023c29a
Collins, Michael
3b70278b-0004-45e0-b3c9-0debdf0a9351
Ferentinos, George
abacdc6a-8c4d-41c4-9a21-ce4eee70802d
Brooks, Michael
450c4400-2f26-4cf9-86e3-8588a023c29a
Collins, Michael
3b70278b-0004-45e0-b3c9-0debdf0a9351

Ferentinos, George, Brooks, Michael and Collins, Michael (1981) Gravity-induced deformation on the north flank and floor of the sporadhes basin of the North Aegean sea trough. Marine Geology, 44 (3-4), 289-302. (doi:10.1016/0025-3227(81)90055-4).

Record type: Article

Abstract

PDR and continuous seismic profiling surveys in the Sporadhes basin (the western part of the North Aegean sea trough) reveal active gravity-induced deformation of the postorogenic sedimentary sequence. Different deformational patterns in the uppermost sedimentary layers of the flanks and floor of the basin suggest that the layers are deformed by several gravity-induced processes including slumping, sliding and creep contemporaneous with sediment deposition.

Antithetic faulting on the northern flank of the basin (the Thermaicos slope) results from downslope creep of surface layers over deeper tilted bedding planes. This process is a consequence of progressive slope development associated with the evolution of the Sporadhes basin. The morphology of the sea floor and the deformation of the upper layers clearly reflect synsedimentary tectonics in a subsiding basin environment.

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Published date: December 1981

Identifiers

Local EPrints ID: 201571
URI: http://eprints.soton.ac.uk/id/eprint/201571
ISSN: 0025-3227
PURE UUID: 49b18d41-00c9-48a9-bd15-e90c2976bf54

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Date deposited: 28 Oct 2011 13:55
Last modified: 14 Mar 2024 04:22

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Contributors

Author: George Ferentinos
Author: Michael Brooks
Author: Michael Collins

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