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EnglishEocene-Oligocene paleogeographic/paleotectonic reconstructions of the Rhodopian – northern Aegean – western BlackSea region largely ignore the Thrace Basin, a large sedimentary basin up to 9 km thick that has been long interpreted asa forearc basin developed in a context of northward subduction. Recent structural, stratigraphic, petrologic, and sedimentologicdata challenge this notion and may instead be interpreted within a context of upper-plate extension during thecomplex transition between the collisional tectonic regime related to the closure of Vardar-İzmir-Ankara oceanic realmand the extensional regime characterizing the Oligocene-Neogene evolution of the Aegean and peri-Aegean regions. Thedetritus filling the Thrace Basin was derived from two main sediment source areas: (i) the mostly metamorphic terrainsof the Rhodopes to the west and (ii) the Vardar-İzmir-Ankara and Biga (intra-Pontide?) subduction-accretion prisms tothe southwest. During most of the Eocene-Oligocene, the entire basin was characterized by a complex physiography, asshown by commercial seismic lines in the subsurface and abrupt lateral facies change at the surface. Such physiographywas controlled by a series of basement highs trending from WNW-ESE (in the eastern and northern portions of thebasin) to WSW-ENE (in the western and southern portions of the basin) which influenced sediment dispersal and theareal distribution of paleoenvironments.
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| Titolo: | Petrostratigraphic evolution of the Thrace Basin (Bulgaria, Greece, Turkey) within the context of Eocene-Oligocene post-collisional evolution of the Vardar-İzmir-Ankara suture zone | |
| Autori: | ||
| Data di pubblicazione: | 2013 | |
| Rivista: | ||
| Handle: | http://hdl.handle.net/20.500.11770/136313 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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http://hdl.handle.net/20.500.11770/136313
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