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Data Publisher for Earth & Environmental Science

Trimonis, Egidius S; Os'kina, Natalia S; Barteneva, Leili I (1988): Age of bottom sediments from the South Atlantic Rise as indicated by 14C data for stations of R/V Professor Shtokman [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.758746, Supplement to: Trimonis, ES et al. (1988): Late Quaternary sedimentation on the South Atlantic Ridge. Oceanology, 28(1), 76-82

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Abstract:
Sedimentation of pelagic biogenic coccolithic-foraminiferal sediments predominates in the section of the South Atlantic ridge between 20° and 30°S. Sedimentation rate and thickness of Late Quaternary sediments differ in the rift valley, the crestal section of the ridge, its flanks and transform faults. Holocene and layers representing the most recent and pen¬ultimate continental glaciations and the last interglacial are distinguishable in the late Quaternary profile. During their development, changes in the mean annual sea surface temperature in the tropical zone of the South Atlantic were minimal, i.e. 1-2°C.
Project(s):
Coverage:
Median Latitude: -25.482875 * Median Longitude: -13.107000 * South-bound Latitude: -29.648000 * West-bound Longitude: -13.972000 * North-bound Latitude: -20.321000 * East-bound Longitude: -12.096000
Minimum DEPTH, sediment/rock: 0.065 m * Maximum DEPTH, sediment/rock: 0.525 m
Event(s):
PSh-830  * Latitude: -20.321000 * Longitude: -12.181000 * Elevation: -3380.0 m * Location: South Atlantic * Method/Device: Gravity corer (GC)
PSh-832  * Latitude: -22.768000 * Longitude: -12.096000 * Elevation: -3350.0 m * Location: South Atlantic * Method/Device: Gravity corer (GC)
PSh-834  * Latitude: -23.237000 * Longitude: -13.094000 * Elevation: -3200.0 m * Location: South Atlantic * Method/Device: Gravity corer (GC)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEvent
Latitude of eventLatitude
Longitude of eventLongitude
Elevation of eventElevationm
Area/localityAreaTrimonis, Egidius S
DEPTH, sediment/rockDepth sedmGeocode
Depth, top/minDepth topmTrimonis, Egidius S
Depth, bottom/maxDepth botmTrimonis, Egidius S
Age, datedAge datedkaTrimonis, Egidius SAge, 14C benzol synthesis
10 Age, standard deviationAge std dev±Trimonis, Egidius SCalculated
Size:
40 data points

Data

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Event

Latitude

Longitude

Elevation [m]

Area

Depth sed [m]

Depth top [m]

Depth bot [m]

Age dated [ka]
10 
Age std dev [±]
PSh-830 -20.321-12.181-3380western crest of the rift0.0750.050.108.1400.13
PSh-832 -22.768-12.096-3350eastern flank of the rift zone0.0650.050.089.0300.13
PSh-834 -23.237-13.094-3200eastern flank of the rift zone0.0750.050.1015.0000.24
PSh-839 -24.843-13.887-4400fault valley0.5250.500.5533.4000.73
PSh-841 -27.194-13.972-3710fault valley0.0750.050.109.3000.12
PSh-842 -27.080-13.548-3095rift valley0.0750.050.1015.8500.50
PSh-844 -28.772-13.144-3370rift valley0.0750.050.108.5000.15
PSh-846 -29.648-12.934-3940fault valley0.0750.050.1014.0000.15