Baturin, Gleb N; Kochenov, A V; Petelin, Veniamin P (1970): (Table 1) Results of X-ray radiographic analyses of authigenic phosphorites from the Southwest Africa shelf [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.775530, Supplement to: Baturin, GN et al. (1970): Phosphorite formation on the shelf of the Southwest Africa. Litologiya i Poleznyye Iskopaemyye (Lithology and Mineral Resources), 5(3), 15-26
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Abstract:
In the biologically productive area on the Southwest Africa shelf a current process of diagenetic phosphorite formation occurs. Remains of phytoplankton are the main source of phosphorus in host bottom sediments. Phosphorus concentrates in nodules due to its redistribution in bottom sediments and precipitation from interstitial waters. Accumulation of the phosphate nodules, as well as of scattered fish bone debris in sediments occurs at sudden change in hydrological conditions and removal of fine sediment fractions due to increased bottom currents or during transgressions.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: -22.483667 * Median Longitude: 13.982000 * South-bound Latitude: -22.990000 * West-bound Longitude: 13.746667 * North-bound Latitude: -21.816667 * East-bound Longitude: 14.326667
Date/Time Start: 1968-05-01T00:00:00 * Date/Time End: 1968-05-01T00:00:00
Minimum Elevation: -148.0 m * Maximum Elevation: -76.0 m
Event(s):
AK3-144 * Latitude: -22.945000 * Longitude: 13.803333 * Date/Time: 1968-05-01T00:00:00 * Elevation: -148.0 m * Campaign: AKU3 * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)
AK3-152 * Latitude: -22.680000 * Longitude: 14.326667 * Date/Time: 1968-05-01T00:00:00 * Elevation: -76.0 m * Campaign: AKU3 * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)
AK3-160 * Latitude: -21.986667 * Longitude: 13.853333 * Date/Time: 1968-05-01T00:00:00 * Elevation: -92.0 m * Campaign: AKU3 * Basis: Akademik Kurchatov * Method/Device: Grab (GRAB)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Longitude of event | Longitude | ||||
| 3 | Latitude of event | Latitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | Sample type | Samp type | Baturin, Gleb N | |||
| 6 | Phosphorus pentoxide | P2O5 | % | Baturin, Gleb N | X-ray radiography | |
| 7 | a - lattice parameter | a | 10-8 cm | Baturin, Gleb N | X-ray radiography | |
| 8 | c - lattice parameter | c | 10-8 cm | Baturin, Gleb N | X-ray radiography | |
| 9 | Line definition | Line def | Baturin, Gleb N | X-ray radiography |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
40 data points
Data
| 1 Event | 2 Longitude | 3 Latitude | 4 Elevation [m] | 5 Samp type | 6 P2O5 [%] | 7 a [10-8 cm] | 8 c [10-8 cm] | 9 Line def |
|---|---|---|---|---|---|---|---|---|
| AK3-144 | 13.803 | -22.945 | -148 | phosphatized cast of a gastropod | 9.304 | 6.878 | well-defined | |
| AK3-152 | 14.327 | -22.680 | -76 | Loose phosphate nodule | 27.88 | 9.314 | 6.868 | well-defined |
| AK3-152 | 14.327 | -22.680 | -76 | Granular phosphatic nodule | 30.18 | 9.314 | 6.876 | well-defined |
| AK3-152 | 14.327 | -22.680 | -76 | same | 29.62 | 9.309 | 6.872 | well-defined |
| AK3-152 | 14.327 | -22.680 | -76 | dense lithified fecal lump | 31.64 | 9.309 | 6.874 | well-defined |
| AK3-152 | 14.327 | -22.680 | -76 | brown dense nodule | 32.74 | 9.314 | 6.872 | well-defined |
| AK3-160 | 13.853 | -21.987 | -92 | same | 31.16 | 9.314 | 6.868 | well-defined |
| AK3-161 | 13.747 | -21.817 | -98 | Granular phosphatic nodule | 31.08 | weak | ||
| AK3-209 | 14.180 | -22.990 | -120 | Loose fecal lump | 27.53 | very weak |