--> Abstract: Tectonic-Sedimentary Evolution of the Black Sea, by I. V. Popadyuk; #90039 (2005)
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Tectonic-Sedimentary Evolution of the Previous HitBlackNext Hit Sea

I. V. Popadyuk
Ukrainian State Geological Research Institute, Lviv, Ukraine

The Previous HitBlackNext Hit Sea is commonly regarded as back-arc basin developed along the northern margin of the Tethys Ocean. The basin is usually interpreted as two component geodynamic system with different timing of extension: The Western Previous HitBlackNext Hit Sea (WBS) opened in Early Cretaceous (Barremian to Albian) and the Eastern Previous HitBlackNext Hit Sea (EBS) rifted in Mid-Paleocene. Four stratigraphic charts, eighteen paleogeographic and four paleotectonic palinspastic maps were completed to explain a new, “single basin” concept of geological evolution of the Previous HitBlackNext Hit Sea. The concept describes the basin evolution in terms of three main stages: 1) rift (Early-Mid Jurassic), 2) mature back-arc basin (Late Jurassic-Eocene), and 3) collision (Oligocene-Present). The Western and Eastern Previous HitBlackNext Hit Sea basins were individualized by Oligocene resulting from the collision between the Pontides arc and the northern Tethian margin in the Balkan, Mid-Previous HitBlackNext Hit Sea and Georgian segments where the north-verging duplexes sealed the Tethys continental margin wedge leaving the WBS and EBS back-arc basin remainders unclosed. The WBS and EBS coalesced by Late Miocene – Early Pliocene resulting from the abrupt subsidence of Mid-Previous HitBlackNext Hit Sea High (Shatsky ridge, Tuapse and Sorokin troughs). The Late Miocene-Pliocene subsidence was probably caused by the regional isostatic compensation of collisionally deformed European plate.

The study discusses the regional-scale events which affected the petroleum systems evolution across the Greater Previous HitBlackTop Sea.

AAPG Search and Discovery Article #90039©2005 AAPG Calgary, Alberta, June 16-19, 2005