This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: http://doi.org/10.1016/j.palaeo.2021.110819. This is version 2 of this Preprint.
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Abstract
During the early and middle Miocene, the Mediterranean had become a restricted marginal marine sea with diminishing and ultimate loss of connectivity to the Indian Ocean. This dramatically changed the heat, energy, freshwater and nutrient budgets across the Mediterranean and most notably in its eastern basin. While one of the most prominent lines of evidence of this change in the Eastern Mediterranean is the onset of sapropel formation, many other aspects of the sedimentary system changed in response to this rearrangement. Here we present a detailed analysis of a hemipelagic succession from southeastern Cyprus dated to the late Aquitanian to the early Serravallian (22.5 – 14.5 Ma). This sequence is carbonate-dominated and formed during the decoupling of the Mediterranean Sea and the Indian Ocean. It exhibits sedimentation with mass transport contribution from shallow water carbonates to deeper facies with phosphatization and bottom current (at intermediate depth) interactions. This succession traces both local subsidence and loss of a local carbonate factory. Additionally, it records a shift in bottom current energy and seafloor ventilation, which are an expected outcome of connectivity loss with the Indian Ocean.
DOI
https://doi.org/10.31223/X5091W
Subjects
Sedimentology, Stratigraphy
Keywords
Pakhna formation, Drift deposits, Pelagite, Sapropels, Phosphogenesis, Drift deposits, Pelagite, Sapropels, Phosphogenesis
Dates
Published: 2021-10-12 14:53
Last Updated: 2022-03-02 10:10
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License
CC BY Attribution 4.0 International
Additional Metadata
Conflict of interest statement:
No conflicts of interest
Data Availability (Reason not available):
10.6084/m9.figshare.16419771
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