Blog
About

37
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Data report: sediment major element, minor element, and reactive iron and manganese data from the Okinawa Trough: IODP Expedition 331 Sites C0014 and C0017

      , ,

      Proceedings of the IODP

      Integrated Ocean Drilling Program

      Read this article at

      ScienceOpenPublisher
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          We present sediment solid-phase chemical data from Integrated Ocean Drilling Program Expedition 331 Sites C0014 and C0017, two sites with contrasting sediment chemistries. Results presented here include a suite of major and trace elements from whole-sediment digestions and sediments extracted using a selective leaching procedure for Fe and Mn. The sediment package at Site C0014 is chemically variable, displaying a wide range of concentrations for a number of major and trace elements. This sediment package has intervals rich in solid-phase Mg, with values as high as 10-15 wt% between ∼30 and 38 meters below seafloor (mbsf) and lower values at shallower depths and deeper than ∼40 mbsf. This pattern is consistent with other expedition data, suggesting a sedimentary zone of active high-temperature alteration centered roughly between 30 and 40 mbsf. The upper sedimentary package is also rich in dithionate extractable iron, which decreases to low values by ∼30 mbsf. Unlike iron, dithionate extractable Mn is relatively low in the upper 20-30 m of sediment, with some enrichment in the uppermost sediment package for Holes C0014G and C0014B. Below this region, however, a zone of enriched reactive and total Mn is centered just above ∼40 mbsf. In contrast to Site C0014, Site C0017 generally lacks the more pronounced chemical signatures apparent within the sediments, and many of the chemical signatures likely reflect the regional background hemipelagic sediment cover. There are, however, elevated levels of reactive Mn both in the upper ∼30 m and the bottom ∼50-75 m of sediment.

          Related collections

          Most cited references 13

          • Record: found
          • Abstract: not found
          • Book Chapter: not found

          Composition of the Continental Crust

           R.L Rudnick,  S. Gao (2003)
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Iron Oxide Removal from Soils and Clays by a Dithionite-Citrate System Buffered with Sodium Bicarbonate

             O. Mehra (1958)
              Bookmark
              • Record: found
              • Abstract: not found
              • Article: not found

              Development of a sequential extraction procedure for iron: implications for iron partitioning in continentally derived particulates

                Bookmark

                Author and article information

                Journal
                10.2204/iodp.proc.331.2011
                Proceedings of the IODP
                Integrated Ocean Drilling Program
                1930-1014
                09 October 2015
                10.2204/iodp.proc.331.202.2015

                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/

                Product
                Self URI (journal page): http://publications.iodp.org/

                Comments

                Comment on this article