Data Description

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Citation:
Steph, S et al. (2014): (Table 1) Stable oxygen isotope ratios of planktonic foraminifera in Carribean core top samples and calculated habitat depth. doi:10.1594/PANGAEA.833686,
Supplement to: Steph, Silke; Tiedemann, Ralf; Prange, Matthias; Groeneveld, Jeroen; Nürnberg, Dirk; Reuning, L; Schulz, Michael; Haug, Gerald H (2006): Changes in Caribbean surface hydrography during the Pliocene shoaling of the Central American Seaway. Paleoceanography, 21(4), PA4221, doi:10.1029/2004PA001092
Abstract:
Pliocene d18O records of shallow and deep dwelling planktonic foraminifers from the Caribbean (Ocean Drilling Program sites 999 and 1000), the tropical east Pacific (sites 1241 and 851), and the Atlantic (site 925, Ceara Rise, and site 1006, western Great Bahama Bank) were used to examine Atlantic-Caribbean-Pacific atmospheric and oceanic linkages associated with the progressive closure of the Central American Seaway (5.5-3 Ma). Comparisons indicate the development of an inner-Caribbean salinity gradient in the mixed layer and salinity changes on precessional periodicities after 4.4 Ma (site 1000), when the Pacific-Caribbean throughflow became significantly restricted. The high-amplitude variability in salinity is also observed at site 1006, monitoring the Caribbean outflow into the Atlantic. Comparisons of Caribbean and Atlantic planktonic d18O records suggest the North Atlantic subtropical gyre as a major source for high-salinity surface waters. Precession-induced variations in the volume transport of Pacific surface water masses through the Panamanian Seaway are considered a main factor to explain the Caribbean salinity minima. Results from a coupled climate model point to changes in the El Niño-Southern Oscillation state as a potential trigger for changes in the amount of Pacific inflow into the Caribbean.
Project(s):
Coverage:
Median Latitude: 16.395637 * Median Longitude: -68.426655 * South-bound Latitude: 13.836583 * West-bound Longitude: -74.349700 * North-bound Latitude: 21.324333 * East-bound Longitude: -59.282333
Minimum DEPTH, sediment/rock: 0.0 m * Maximum DEPTH, sediment/rock: 0.0 m
Event(s):
SO164-01-3 * * Latitude: 13.836583 * Longitude: -74.150467 * Date/Time Start: 2002-05-26T13:22:00 * Date/Time End: 2002-05-26T15:19:00 * Elevation Start: -4025.7 m * Elevation End: -4025.0 m * Penetration: 0.25 m * Location: Columbia Basin * * Campaign: SO164 (RASTA/GOLDFLOS) * * Basis: Sonne * * Device: MultiCorer *
SO164-02-3 * * Latitude: 15.304833 * Longitude: -72.784333 * Date/Time Start: 2002-05-27T14:37:00 * Date/Time End: 2002-05-27T15:50:00 * Elevation Start: -2977.0 m * Elevation End: -2980.0 m * Penetration: 0.41 m * Location: Columbia Basin * * Campaign: SO164 (RASTA/GOLDFLOS) * * Basis: Sonne * * Device: MultiCorer *
SO164-03-3 * * Latitude: 16.540000 * Longitude: -72.205167 * Date/Time Start: 2002-05-28T08:07:00 * Date/Time End: 2002-05-28T09:11:00 * Penetration: 0.38 m * Location: Beata Ridge * * Campaign: SO164 (RASTA/GOLDFLOS) * * Basis: Sonne * * Device: MultiCorer *
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Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEventMetadata
2LATITUDE *LatitudeGeocode
3LONGITUDE *LongitudeGeocode
4Elevation of eventElevationmMetadata
5DEPTH, sediment/rock *DepthmGeocode
6Globigerinoides sacculifer, d18O *G. sacculifer d18Oper mil PDBSteph, Silke *Mass spectrometer Finnigan MAT 252 *without sac-like final chamber, size fraction 315-400 µm
7Habitat depth *HDmSteph, Silke *Calculated *Globigerinoides sacculifer
8Globorotalia crassaformis, d18O *G. crassaf. d18Oper mil PDBSteph, Silke *Mass spectrometer Finnigan MAT 252 *size fraction 315-400 µm
9Habitat depth *HDmSteph, Silke *Calculated *Globorotalia crassaformis
License:
Size:
52 data points

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