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Cretaceous sedimentation along the Romanian margin of the Black Sea; inferences from onshore to offshore correlations

Csaba Krezsek, R. I. Bercea, G. C. Tari and G. Ionescu
Cretaceous sedimentation along the Romanian margin of the Black Sea; inferences from onshore to offshore correlations (in Petroleum geology of the Black Sea, M. D. Simmons (editor), G. C. Tari (editor) and A. I. Okay (editor))
Special Publication - Geological Society of London (September 2017) 464 (1): 211-245

Abstract

It is generally believed that the western part of the Black Sea opened during the Early Cretaceous. However, recent data and interpretation from the Turkish margin suggest rifting continued into the Coniacian or Santonian. In this review, the evidence related to the Black Sea rifting on the conjugate Romanian margin is reassessed. Our integrated interpretation of this region, supported by outcrop observations, core and detrital zircon data, suggests that rifting started during the Aptian and continued intermittently until the mid-Turonian in two distinct stages. These stages are bounded by significant unconformities and reflect the progressive widening of the rift system. The first synrift stage started in the Aptian with the deposition of fluvial and lacustrine clastic successions, and locally marine carbonates in semi-isolated depocentres. These sinks began to coalesce during the latest Aptian-Albian with shallow-marine transgression from the east, and deposition of coastal swamp, deltaic and littoral facies. The second phase of rifting during the Cenomanian was marked by transgressive shallow-marine deposits overstepping the earlier Albian depocentres. Continental break-up followed in the mid-Turonian associated with regional uplift and erosion of the basin margin and the local deposition of fluvial conglomerates.


ISSN: 0305-8719
Coden: GSLSBW
Serial Title: Special Publication - Geological Society of London
Serial Volume: 464
Serial Issue: 1
Title: Cretaceous sedimentation along the Romanian margin of the Black Sea; inferences from onshore to offshore correlations
Title: Petroleum geology of the Black Sea
Author(s): Krezsek, CsabaBercea, R. I.Tari, G. C.Ionescu, G.
Author(s): Simmons, M. D.editor
Author(s): Tari, G. C.editor
Author(s): Okay, A. I.editor
Affiliation: OMV Petrom, Bucharest, Romania
Pages: 211-245
Published: 20170907
Text Language: English
Publisher: Geological Society of London, London, United Kingdom
References: 79
Accession Number: 2017-082778
Categories: StratigraphySedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. strat. cols., sects., geol. sketch map
N44°10'00" - N45°00'00", E29°15'00" - E29°15'00"
Secondary Affiliation: OMV Exploration and Production, AUT, Austria
Source Note: Online First
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 201743
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