de.pangaea.dataset922866 und dataset PANGAEA

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https://www.pangaea.de/ information pointOfContact 2026-02-15T12:54:32Z https://doi.pangaea.de/10.1594/PANGAEA.922866 2020-09-21T08:49:24 publication https://doi.org/10.1594/PANGAEA.922866 Incarbona, Alessandro

alessandro.incarbona@unipa.it

https://orcid.org/0000-0003-3563-7143 information author Sprovieri, Mario https://orcid.org/0000-0002-7192-5014 information author PANGAEA

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https://www.pangaea.de/ information publisher tableDigital Carbon-rich layers exist at both sides of the Mediterranean Sea sedimentary record and are called sapropels and organic rich layers (ORLs), respectively in the eastern and western basins. They have different levels of organic carbon accumulation and seafloor oxygen deprivation. The most recent sapropel and ORL deposition have a different timing, 10.8-6.1 and 14.5-9.0 ka respectively. Here we investigate oxygen isotopic records of three foraminifera species that occupy different habitats within the Sicily Channel water column since ~ 12.0 ka, thus in the sill between the eastern and western Mediterranean basins. These data are ice volume-corrected, to get information on water masses density variability, and are accompanied by benthic foraminifera 13C measurements to establish Sicily Channel seafloor ventilation. Our results, and the comparison with other chronologically well-constrained Mediterranean records, highlight the connection of the two sub-basins due to monsoon activity. The end of the maximum Nile River flooding at ~ 9.2 ka, and eastern Mediterranean seafloor reventilation above 1800-1500 m depth at ~ 8.2 and 7.2 ka, left a clear signature in the intermediate water isotopic record of the Sicily Channel. Concurrently, the western Mediterranean deep water circulation experienced a significant recovery after a long period of slowdown. We argue that African monsoon weakening was transmitted into the western Mediterranean, through the intermediate layer of circulation, where promoted deep water formation and brought oxygen to the seafloor. completed Incarbona, Alessandro

alessandro.incarbona@unipa.it

https://orcid.org/0000-0003-3563-7143 information principalInvestigator 8.2 ka event 9.2 ka event LIW ORL Sapropel S1 theme 1995-01-01 creation PANGAEA

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https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-4.0: Creative Commons Attribution 4.0 International textTable und geoscientificInformation 13.1781 13.1781 37.0358 37.0358 1995-03-16T17:05:00 1995-03-16T22:00:00 0.01 3.55 Sample code/label thematicClassification DSDP/ODP/IODP sample designation DEPTH, sediment/rock physicalMeasurement m m AGE physicalMeasurement ka BP ka BP Globigerinoides ruber, δ13C physicalMeasurement ‰ PDB ‰ PDB Globigerinoides ruber, δ18O physicalMeasurement ‰ PDB ‰ PDB Neogloboquadrina incompta, δ13C physicalMeasurement ‰ PDB ‰ PDB Neogloboquadrina incompta, δ18O physicalMeasurement ‰ PDB ‰ PDB Uvigerina spp., δ13C physicalMeasurement ‰ PDB ‰ PDB Uvigerina spp., δ18O physicalMeasurement ‰ PDB ‰ PDB text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.922866?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: 160-963D * LATITUDE: 37.035800 * LONGITUDE: 13.178100 * DATE/TIME START: 1995-03-16T17:05:00 * DATE/TIME END: 1995-03-16T22:00:00 * ELEVATION: -469.0 m * Penetration: 8.4 m * Recovery: 8.39 m * LOCATION: Strait of Sicilia * CAMPAIGN: Leg160 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 1 core; 8.4 m cored; 0 m drilled; 99.9 % recovery 1995-03-16T17:05:00 Supplement to https://doi.org/10.1029/2020PA004009 Incarbona, Alessandro

alessandro.incarbona@unipa.it

https://orcid.org/0000-0003-3563-7143 information author Sprovieri, Mario https://orcid.org/0000-0002-7192-5014 information author documentDigital Paleoceanography and Paleoclimatology