کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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6435527 | 1637181 | 2013 | 21 صفحه PDF | دانلود رایگان |
Facies architecture of submarine fans and channel-levee complexes in the Eastern Black Sea Basin and their evolution from the Late Miocene until the present day are studied using a three-dimensional seismic data set covering an area of approximately 1161Â km2. The interpretation of the observations reveals the outcome of the changing interplay between rate of sedimentation and compressional tectonism in the area through time.The Upper Tertiary sedimentary succession in the Eastern Black Sea Basin is characterized by various depositional elements of northeasterly sourced turbidite systems that were deposited in a progressively deforming basin at settings ranging from lower to upper slope. Depositional elements interpreted from seismic character and geometry include canyons, canyon-confined channels, levees, mass transport complexes, sediment waves, sheets and hemipelagic drapes.Two anticlines formed in a compressional tectonic regime subdividing the study area into three mini-basins acted as sediment barriers and controlled the geometry of the basin, and thus, the accommodation space, throughout the Plio-Quaternary period. Sheets that were deposited due to abrupt reduction in structural slope gradients and knickpoints that mark the boundary between site of incision and site of deposition within canyons both have displayed southwestward migration through time, which clearly reflects the basinward advance of compressional deformation in the Eastern Black Sea Basin.
⺠3D seismic records are interpreted to study sedimentary features in the basin. ⺠Anticlines subdivide the area into mini basins and control the geometry of the features. ⺠We found that tectonics causes evolutionary trend of canyons in the basin.
Journal: Marine and Petroleum Geology - Volume 43, May 2013, Pages 187-207