Chemical composition in phosphate materials from the ocean floor


Content, distribution patterns, and speciation of Cl in phosphorites and bone phosphate from the ocean floor, as well as in a set of samples from the land are studied. Total Cl content varies from 0.05 to 4.25% in phosphorites and from 2.48 to 2.75% in recent phosphate-bearing sediments. Recent phosphorites are enriched in Cl relative to ancient ones. Bound Cl content (not extractable by washing), which increases with lithification, varies from 0.17 to 0.60% in ocean and land phosphorites and from 0.02% to 1.30% in bone phosphate. Na content in most samples is higher relative to Na of NaCl due to its incorporation into the crystal lattice of apatite. However, the opposite relationship is observed in some samples indicating partial Cl incorporation into the anion complex of phosphate. Behavior of Cl in phosphorites from the present-day ocean floor is controlled by early diagenetic processes, whereas the role of weathering, catagenesis, and hydrogeological factors may be crucial for phosphorites on continents.

Supplement to: Baturin, Gleb N (2005): Chlorine in phosphorites and bone phosphate from oceanic and marine deposits. Translated from Litologiya i Poleznye Iskopaemye, 2005, 1, 65-77, Lithology and Mineral Resources, 40(1), 56-67

Related Identifier IsSupplementTo
Metadata Access
Creator Baturin, Gleb N
Publisher PANGAEA
Contributor P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow
Publication Year 2005
Rights Creative Commons Attribution 3.0 Unported;
OpenAccess true
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 3 datasets
Discipline Earth System Research
Spatial Coverage (-77.870W, -35.820S, 140.201E, 32.120N); Agulhas Plateau; Namibian shelf; Chile shelf; off Peru; Atlantic Ocean; Peru shelf; Central Basin, Pacific Ocean; Manihiki Plateau, Pacific Ocean
Temporal Coverage Begin 1961-11-01T00:00:00Z
Temporal Coverage End 1986-01-19T00:00:00Z