Baturin, Gleb N; Rozanov, Alexander G (2003): (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 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.762258, Supplement to: Baturin, GN; Rozanov, AG (2003): Sulfur species in oceanic phosphorites. Translated from Okeanologiya, 2003, 43(1), 35-43, Oceanology, 43(1), 30-39
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Published: 2003 (exact date unknown) • DOI registered: 2011-07-27
Abstract:
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.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: -7.013327 * Median Longitude: 10.251663 * South-bound Latitude: -25.266667 * West-bound Longitude: -79.650000 * North-bound Latitude: 41.233333 * East-bound Longitude: 133.800000
Minimum Elevation: -2130.0 m * Maximum Elevation: -78.0 m
Event(s):
AK-1215 * Latitude: -17.416667 * Longitude: 11.483333 * Elevation: -150.0 m * Location: Namibian shelf * Method/Device: Trawl net (TRAWL)
AK4-250 * Latitude: -21.133300 * Longitude: -70.366700 * Elevation: -150.0 m * Location: Chile shelf * Campaign: AKU4 * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | Location of event | Location | ||||
| 6 | Sample code/label | Sample label | Baturin, Gleb N | |||
| 7 | Sample type | Samp type | Baturin, Gleb N | |||
| 8 | Phosphorus pentoxide | P2O5 | % | Baturin, Gleb N | Wet chemistry | |
| 9 | Aluminium | Al | % | Baturin, Gleb N | Wet chemistry | |
| 10 | Carbon dioxide | CO2 | % | Baturin, Gleb N | Wet chemistry | |
| 11 | Carbon, organic, total | TOC | % | Baturin, Gleb N | Wet chemistry | |
| 12 | Sulfur in sulfate | S SO4 | mg/kg | Baturin, Gleb N | Wet chemistry | |
| 13 | Sulfur of pyrite | S Py | mg/kg | Baturin, Gleb N | Wet chemistry | |
| 14 | Sulfur, organic | S org | % | Baturin, Gleb N | Wet chemistry | total |
| 15 | Sulfur, elemental | S° | % | Baturin, Gleb N | Wet chemistry | |
| 16 | Sulfur, total | TS | % | Baturin, Gleb N | Wet chemistry | |
| 17 | Barium | Ba | mg/kg | Baturin, Gleb N | Wet chemistry | |
| 18 | Iron | Fe | % | Baturin, Gleb N | Wet chemistry | |
| 19 | Iron in pyrite | Fe Py | % | Baturin, Gleb N | Calculated | calculated from S pyr |
| 20 | Iron | Fe | % | Baturin, Gleb N | Calculated | excessive (Fe ex = Fe - Fe pyr) |
| 21 | Iron/Aluminium ratio | Fe/Al | Baturin, Gleb N | Calculated | ||
| 22 | Ratio | Ratio | Baturin, Gleb N | Calculated | S SO4 / S pyr | |
| 23 | Ratio | Ratio | Baturin, Gleb N | Calculated | Fe ex / Fe pyr |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
389 data points