(Table 2) Chemical composition and sulfur and iron speciations in phosphorites and host sediments from the Namibian-, Peru- and Chile shelves and from the Sea of Japan
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2003
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| _version_ | 1867171777494384640 |
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| author | Baturin, Gleb N Rozanov, Alexander G |
| author_facet | Baturin, Gleb N Rozanov, Alexander G |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Sulfur speciation was studied by chemical methods in recent, Pliocene-Pleistocene and Miocene phosphorites from the inner and outer Namibian shef, Late Quaternary phosphorites from the Peru-Chile shelf and Miocene phosphorites from some underwater highs of the Sea of Japan. Following concentrations (%) were measured: 0.25-1.147% of sulfate sulfur (S SO4), 0.012-1.473% pyritic sulfur (S pyr), 0.005-0.141% of organic sulfur (TOS), and <0.0001-0.04% of elemental sulfur (S°). Generally sulfate sulfur was predominant, but in some samples pyritic sufur was more abundant. (S SO4/S pyr) ratio varied from 0.36 to 18 in shelf phosphorites and increased to 37-52 in phosphorites from the Sea of Japan. The most part of sulfate sulfur seemed to be incorporated in apatite mineral of phosphorites. Samples enriched in organic matter were enriched in pyritic sulfur as well, but without direct correlation between them. Similar relation was found between organic matter and organic sulfur. Relative amount of non-pyritic Fe(II) in phosphorites from reducing environment was found to decrease with time along with their lithification owing to continuation of pyritization. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_762258 |
| institution | PANGAEA |
| language | en |
| publishDate | 2003 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 2) Chemical composition and sulfur and iron speciations in phosphorites and host sediments from the Namibian-, Peru- and Chile shelves and from the Sea of Japan Baturin, Gleb N Rozanov, Alexander G AK-1215; AK4-250; AK5-412; Akademik Kurchatov; AKU4; Aluminium; Archive of Ocean Data; ARCOD; Barium; Calculated; Carbon, organic, total; Carbon dioxide; Chile shelf; DM-1620; DM24-2046; DM24-2047; DM24-2048; DM35-3150; DM8; DM8-546; DM8-553; Dmitry Mendeleev; Dredge; DRG; Elevation of event; Event label; Grab; GRAB; Iron; Iron/Aluminium ratio; Iron in pyrite; Latitude of event; Location of event; Longitude of event; Namibian shelf; Peru shelf; Phosphorus pentoxide; Ratio; Sample code/label; Sample type; Sea of Japan; Sulfur, elemental; Sulfur, organic; Sulfur, total; Sulfur in sulfate; Sulfur of pyrite; TRAWL; Trawl net; Wet chemistry Sulfur speciation was studied by chemical methods in recent, Pliocene-Pleistocene and Miocene phosphorites from the inner and outer Namibian shef, Late Quaternary phosphorites from the Peru-Chile shelf and Miocene phosphorites from some underwater highs of the Sea of Japan. Following concentrations (%) were measured: 0.25-1.147% of sulfate sulfur (S SO4), 0.012-1.473% pyritic sulfur (S pyr), 0.005-0.141% of organic sulfur (TOS), and <0.0001-0.04% of elemental sulfur (S°). Generally sulfate sulfur was predominant, but in some samples pyritic sufur was more abundant. (S SO4/S pyr) ratio varied from 0.36 to 18 in shelf phosphorites and increased to 37-52 in phosphorites from the Sea of Japan. The most part of sulfate sulfur seemed to be incorporated in apatite mineral of phosphorites. Samples enriched in organic matter were enriched in pyritic sulfur as well, but without direct correlation between them. Similar relation was found between organic matter and organic sulfur. Relative amount of non-pyritic Fe(II) in phosphorites from reducing environment was found to decrease with time along with their lithification owing to continuation of pyritization. |
| title | (Table 2) Chemical composition and sulfur and iron speciations in phosphorites and host sediments from the Namibian-, Peru- and Chile shelves and from the Sea of Japan |
| topic | AK-1215; AK4-250; AK5-412; Akademik Kurchatov; AKU4; Aluminium; Archive of Ocean Data; ARCOD; Barium; Calculated; Carbon, organic, total; Carbon dioxide; Chile shelf; DM-1620; DM24-2046; DM24-2047; DM24-2048; DM35-3150; DM8; DM8-546; DM8-553; Dmitry Mendeleev; Dredge; DRG; Elevation of event; Event label; Grab; GRAB; Iron; Iron/Aluminium ratio; Iron in pyrite; Latitude of event; Location of event; Longitude of event; Namibian shelf; Peru shelf; Phosphorus pentoxide; Ratio; Sample code/label; Sample type; Sea of Japan; Sulfur, elemental; Sulfur, organic; Sulfur, total; Sulfur in sulfate; Sulfur of pyrite; TRAWL; Trawl net; Wet chemistry |
| url | https://doi.org/10.1594/PANGAEA.762258 |