Tambiev, Sergey B (1979): Contents of P2O5, Corg, Sr, and Ba in phosphorites and host sediments from the Atlantic and Pacific oceans [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.755309, Supplement to: Tambiev, SB (1979): Strontium and barium in the formation of oceanic phosphorites. Oceanology, 19(2), 171-175
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Abstract:
Sr contents in phosphorites on shelves of the Southwest Africa, and of Chile and Peru increase with degree of their lithification, from 0.05 to 0.28% and from 0.13 to 0.16% respectively. Phosphorites from Pacific submarine seamounts have the average Sr content 0.11%, and bone phosphate from Pacific floor 0.13%. Shelf phosphorites are characterized by high correlation coefficients between Sr and P2O5 (R = +0.82) and constant Sr/P2O5 ratio (0.0084). In phosphorites from submarine sea-mounts and in bones from the ocean floor Sr/P2O5 ratio is only a little higher than a half of that in shelf phosphorites. This indicates specific and different genesis of phosphorites from submarine mountains. Ba content in recent phosphorites from the shelf of the Southwest Africa changes with increasing degree of lithification. At first their Ba contents rise from 0.031 to 0.188%, then they diminish to 0.016%, and thereafter again increase to 0.070%. This is due to successive predominance of one of the following processes going in different directions: co-precipitation with phosphate gels or formation of true separate Ba phase, loss of phosphate in crystallization and "self-purification" of concentrations, and surface adsorption. In Peru-Chile shelf phosphorites the average Ba content is 0.017%, in phosphorites from Pacific seamounts 0.192%, and in fossilized bones 0.010%.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: -15.065073 * Median Longitude: 132.479050 * South-bound Latitude: -22.667000 * West-bound Longitude: 13.967000 * North-bound Latitude: 32.283300 * East-bound Longitude: -70.366700
Date/Time Start: 1970-06-01T00:00:00 * Date/Time End: 1970-08-18T00:00:00
Event(s):
AK4-250 * Latitude: -21.133300 * Longitude: -70.366700 * Elevation: -150.0 m * Location: Chile shelf * Campaign: AKU4 * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)
DM8-546 * Latitude: -9.800000 * Longitude: -79.400000 * Elevation: -560.0 m * Location: Peru shelf * Campaign: DM8 * Basis: Dmitry Mendeleev * Method/Device: Grab (GRAB)
DM8-553 * Latitude: -9.233300 * Longitude: -79.650000 * Elevation: -300.0 m * Location: Peru shelf * Campaign: DM8 * Basis: Dmitry Mendeleev * Method/Device: Grab (GRAB)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
6 datasets
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Datasets listed in this publication series
- Tambiev, SB (1979): (Table 1a) Contents of P2O5, Corg, Sr, and Ba in phosphorites and host oozes of the Southwest African shelf at Station ML26_2046. https://doi.org/10.1594/PANGAEA.755301
- Tambiev, SB (1979): (Table 1b) Contents of P2O5, Corg, Sr, and Ba in phosphorites and host oozes of the Southwest African shelf at Station ML26_2047. https://doi.org/10.1594/PANGAEA.755302
- Tambiev, SB (1979): (Table 1c) Contents of P2O5, Corg, Sr, and Ba in phosphorites and host oozes of the Southwest African shelf at Station ML26_2048. https://doi.org/10.1594/PANGAEA.755303
- Tambiev, SB (1979): (Table 2a) Contents of P2O5, Sr, and Ba in phosphorites from the Chile shelf. https://doi.org/10.1594/PANGAEA.755304
- Tambiev, SB (1979): (Table 2b) Contents of P2O5, Sr, and Ba in phosphorites from the Peru shelf. https://doi.org/10.1594/PANGAEA.755305
- Tambiev, SB (1979): (Table 2c) Contents of P2O5, Sr, and Ba in phosphorites from Pacific seamounts. https://doi.org/10.1594/PANGAEA.755306