Chemical composition of smectite-bearing basal metalliferous sediments from DSDP Leg 9
| Cobertura |
MEDIAN LATITUDE: -0.240150 * MEDIAN LONGITUDE: -127.391000 * SOUTH-BOUND LATITUDE: -0.962000 * WEST-BOUND LONGITUDE: -133.228300 * NORTH-BOUND LATITUDE: 0.481700 * EAST-BOUND LONGITUDE: -121.553700 * DATE/TIME START: 1969-12-15T00:00:00 * DATE/TIME END: 1970-01-04T00:00:00 |
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| Data(s) |
06/10/1978
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| Resumo |
The mineralogy and P, Fe and Mn contents of basal metalliferous and nonmetalliferous sediments of two Deep Sea Drilling Project cores (Sites 77 and 80) were investigated. When compared with superjacent nonmetalliferous material, basal metalliferous sediments are significantly enriched in P, Fe and Mn. Among the phases present in the metalliferous sediment samples are a poorly-crystalline Fe-rich smectite and X-ray amorphous Fe oxyhydroxides. P is associated primarily with the oxyhydroxides. Adsorption of phosphate on smectite does not seem to play any role in the uptake of P by metalliferous sediments. An estimate of the removal of P by on- and off-ridge metallogenic deposition suggests that this process strongly affects the overall geochemical balance of phosphorus in the World Ocean. |
| Formato |
application/zip, 2 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.705150 doi:10.1594/PANGAEA.705150 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Bloch, Salman (1978): Phosphorus distribution in smectite-bearing basal metalliferous sediments. Chemical Geology, 22, 353-359, doi:10.1016/0009-2541(78)90042-6 |
| Palavras-Chave | #9-77B; 9-80; Atomic absorption spectrometry (AAS), Perkin-Elmer; CaCO3; Calcium carbonate; Deep Sea Drilling Project; Depth; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Fe; Fe frac; Glomar Challenger; Iron; Iron, fractionated; Label; Leg9; Manganese; Manganese, fractionated; Mn; Mn frac; North Pacific/HILL; ODP sample designation; oxide-associated (extracted by the acid-reducing agent); P; Phosphorus; Sample code/label; silicate-associated (insoluble in the acid-reducing agent); South Pacific/VALLEY; X-ray fluorescence (XRF) |
| Tipo |
Dataset |
