Benthic Foraminiferal Assemblages and Rhodolith Facies Evolution in Post-LGM Sediments from the Pontine Archipelago Shelf (Central Tyrrhenian Sea, Italy)
نویسندگان
چکیده
The seabed of the Pontine Archipelago (Tyrrhenian Sea) insular shelf is peculiar as it characterized by a mixed siliciclastic–carbonate sedimentation. In order to reconstruct Late Quaternary paleoenvironmental evolution Archipelago, this study investigates succession facies recorded two sediment cores. For purpose, benthic foraminifera and rhodoliths assemblages were considered. cores (post-Last Glacial Maximum in age) collected at 60 (CS1) 122 m (Caro1) depth on off Ponza Island. paleontological data compared with seismo-stratigraphic lithological evidence. show deepening succession, transition from basal rhodolith-rich biodetritic coarse sand surface coralline-barren silty sand. This more evident along core Caro1 (from bottom top), deeper water than CS1. support evidence, was fairly constant increase amount planktonic foraminiferal marked change Asterigerinata mamilla Lobatula lobatula assemblage Cassidulina carinata assemblage). Interestingly, dating allowed us extend 13,000 years BP rhodolith record indicating possible presence an active carbonate factory that time.
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ژورنال
عنوان ژورنال: Geosciences
سال: 2021
ISSN: ['2076-3263']
DOI: https://doi.org/10.3390/geosciences11040179