- Title
- Discussion: "Unraveling the provenance of Eocene-Oligocene sandstones of the Thrace Basin, North-east Greece"
- Creator
- Maravelis, Angelos; Zelilidis, Avraam
- Relation
- Sedimentology Vol. 60, Issue 3, p. 860-864
- Publisher Link
- http://dx.doi.org/10.1111/j.1365-3091.2012.01369.x
- Publisher
- Wiley-Blackwell Publishing
- Resource Type
- journal article
- Date
- 2013
- Description
- The petrographic analysis of Caracciolo et al.(2011)suggests that the Greek part of the Thrace Basin was affected by the epimetamorphic and ophiolite units of the Circum-Rhodope Belt. This influence is less likely on the southern part of the basin (Lemnos) where the role of the outer arc ridge as a contributor of sediments into the fore-arc basin appears to be of great importance. Supporting evidence comes from palaeocurrent data that indicates a northward palaeoflow direction, the relative successive landward migration of the basin depocentre to the north-east, higher ophiolite influence to the south, the active influence of the outer arc ridge as displayed by the pure ophiolitic layers, and stratigraphic architecture that indicates an ophiolitic source rock coming from ophiolite units, i.e. on Lesvos Island (Maravelis et al., 2007; Maravelis & Zelilidis, 2010a, 2011). The Greek part of the Thrace Basin (Lemnos and Rhodope) comprises a fore-arc basin of the ‘contracted’ type, constructed as an effect of the subduction of the African Plate beneath the Eurasian Plate and is influenced mainly by two major sediment inputs (Maravelis & Zelilidis, 2010a). The southern part is significantly affected by the accretionary prism and associated ophiolitic units, i.e. on Lesvos Island (Maravelis et al., 2007; Maravelis & Zelilidis, 2010a), while the northern part reflects a Circum-Rhodope Belt influence (Maravelis & Zelilidis, 2010a; Caracciolo et al., 2011) (Fig. 1). Several hypotheses and conclusions presented by Caracciolo et al. (2011) do not reflect the actual sedimentary record seen throughout the Palaeogene in the Greek Thrace Basin. In particular, the important influence of the outer arc ridge as major sediment input is not considered. This basin is a complex system of depocentres extending across Greek, Bulgarian and Turkish domains, and an additional multi-faceted approach is required to advance our understanding of its development. Such research should involve age-equivalent rocks within these countries, and be supported by a wide range of data and analytical techniques, such as high frequency sequence stratigraphy, sedimentology, palaeoflow analysis, petrography and geochemistry.
- Subject
- Eocene-Oligocene sandstones; Thrace Basin, North-east Greece; epimetamorphic rock; ophiolites; sedimentology
- Identifier
- http://hdl.handle.net/1959.13/1067339
- Identifier
- uon:18387
- Identifier
- ISSN:0037-0746
- Language
- eng
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