Age Constraints and Paleoenvironmental Interpretation of a Borehole Sedimentary Sequence along the Eastern Part of the Corinth Isthmus, Greece

Pallikarakis, A.; Triantaphyllou, M.V.; Papanikolaou, I.; Dimiza, M.D.; Reicherter, K., and Migiros, G., 2018. Age constraints and paleoenvironmental interpretation of a borehole sedimentary sequence along the eastern part of the Corinth Isthmus, Greece. Borehole Bh-3, located at the eastern part of...

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Bibliographic Details
Published in:Journal of coastal research 2018-05, Vol.34 (3), p.602-617
Main Authors: Pallikarakis, Aggelos, Triantaphyllou, Maria V., Papanikolaou, Ioannis, Dimiza, Margarita D., Reicherter, Klaus, Migiros, Georgios
Format: Article
Language:English
Subjects:
Age
Alternations
Benthic foraminifera
Boreholes
calcareous nannofossils
Fault lines
Foraminifera
Geological time
Geology
Gravel
Isotopes
Isthmia
Lagoons
Lithology
Magnetic permeability
Magnetic susceptibility
Marine isotope stages
Measuring instruments
Micropaleontology
paleobathymetry
Paleoenvironments
Quantitative analysis
Regression analysis
Sand
Sea level
sea-level changes
Sedimentary facies
Sediments
Specimens
Taxa
Uplift
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Summary:Pallikarakis, A.; Triantaphyllou, M.V.; Papanikolaou, I.; Dimiza, M.D.; Reicherter, K., and Migiros, G., 2018. Age constraints and paleoenvironmental interpretation of a borehole sedimentary sequence along the eastern part of the Corinth Isthmus, Greece. Borehole Bh-3, located at the eastern part of the Corinth Isthmus (Greece) in a highly active extensional tectonic environment, is studied in detail. The lithology of the 70-m-long borehole is described, and 55 samples extracted from the core are analyzed for their micropaleontological content. Quantitative analysis of foraminiferal fauna assemblages, along with magnetic susceptibility measurements, indicates alternations between different paleoenvironments ranging from upper shoreface and fluvial-terrestrial to lagoon and shallow marine. The borehole site regional paleodepth was estimated, ranging from a few meters to ∼40 m on the basis of foraminiferal assemblages within the borehole, and the vertical stacking of the facies was interpreted as transgressive and regressive system tracts. Calcareous nannofossils found within the core, based on the presence of Emiliania huxleyi specimens, correlated with the glacioeustatic sea-level changes, and the uplift rate of the area indicated a post–240-ka age, corresponding to sea-level highstand marine isotope stages 7 to 5.
ISSN:0749-0208
1551-5036
DOI:10.2112/JCOASTRES-D-16-00191.1