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      Data report: bulk sediment organic matter, carbonate, and stable isotope stratigraphy from IODP Expedition 346 Site U1427 (250–530 m CCSF-D_Patched)

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      Proceedings of the IODP
      International Ocean Discovery Program

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          Abstract

          Bulk sedimentary characteristics are presented from Integrated Ocean Drilling Program Site U1427, covering the depths greater than 250 m core composite depth below seafloor (CCSF-D_Patched), which spans the mid-Pleistocene transition. Site U1427 is located in the southern Sea of Japan/East Sea and was drilled during Integrated Ocean Drilling Program Expedition 346. Total organic carbon ranges from 0.5 to 3.1 wt%, total nitrogen ranges from 0.04 to 0.32 wt%, and carbonate (CaCO3) contents vary between 1.3 and 25.7 wt%. The carbon isotope ratio of organic matter (δ13Corg) values range from −24.9‰ to −20‰. There is a broad correspondence between the geochemical parameters and the shipboard color reflectance index (b*), and this relationship becomes more pronounced from ~375 m CCSF-D_Patched upward. The b* index has been used as an indicator of glacial–interglacial cycles at Site U1427. Using this inference, the data suggest reduced marine productivity during glacials, whereas interglacials are characterized by relatively higher marine productivity. The interpretation of C/N ratios at Site U1427 may be complicated by an inorganic nitrogen component.

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          Most cited references18

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          A Pliocene-Pleistocene stack of 57 globally distributed benthic δ18O records

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            Preservation of elemental and isotopic source identification of sedimentary organic matter

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              • Record: found
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              Oxygen-Isotope and Paleomagnetic Stratigraphy of Pacific Core V28-239 Late Pliocene to Latest Pleistocene

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                Author and article information

                Journal
                10.2204/iodp.proc.346.2015
                Proceedings of the IODP
                International Ocean Discovery Program
                1930-1014
                04 August 2021
                Article
                10.2204/iodp.proc.346.207.2021
                c8c6d5fb-f901-4f20-834b-329d4c43228f

                This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

                History

                Earth & Environmental sciences,Oceanography & Hydrology,Geophysics,Chemistry,Geosciences

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