Niebler, Hans-Stefan; Hubberten, Hans-Wolfgang; Gersonde, Rainer (1999): Fig. 1. Delta 18O values of planktic formaminifera in surface sediment samples from the South Atlantic Ocean. PANGAEA, https://doi.org/10.1594/PANGAEA.55882, Supplement to: Niebler, H-S et al. (1999): Oxygen Isotope Values of Planktic Foraminifera: A Tool for the Reconstruction of Surface Water Stratification. In: Fischer, G & Wefer, G (eds.), Use of Proxies in Paleoceanography - Examples from the South Atlantic, Springer, Berlin, Heidelberg, 165-189
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
The d18Ocalcite composition of planktic foraminiferal shells in 59 samples collected from surface sediments between 34°S (south-eastern Subtropical Gyre) and 56°S (Antarctic Zone of the Antarctic Circumpolar Current) and additionally from 20°S (Walvis Ridge) in the South Atlantic Ocean documents the apparent calcification depth of 24 planktic foraminiferal taxa. Based on the d18Ocalcite signal of their shells, four depth related groups of foraminifera are distinguished, calcifying in a depth between 0 and 50 m (Sphaeroidinella dehiscens, Pulleniatina obliquiloculata, Orbulina bilobata, Globigerinoides sacculifer (with and without sac), Globigerinella aequilateralis, Globigerinoides ruber (white), Globigerina bulloides); 0 and 200 m (Globigerinoides conglobatus, Orbulina universa, Neogloboquadrina dutertrei, Turborotalita quinqueloba, Neogloboquadrina pachyderma (dextral and sinistral)); 100 and 250 m (Globorotalia tumida, Globorotalia menardii, Globigerinella calida, Globorotalia inflata); and deeper than 250 m (Globorotalia hirsuta, Globorotalia scitula, Globorotalia crassaformis, Globorotalia truncatulinoides (dextral and sinistral)). We propose a method to reconstruct temperature gradients between various depths in the water column, but most specifically between 30 m and 250 m, using the d18Ocalcite composition of foraminiferal calcite. Changes in past sea-surface water stratification in the temperate southern South Atlantic Ocean and in the Antarctic Circumpolar Current can be reconstructed in particular with G. bulloides, G. truncatulinoides and G. inflata. Modern temperature gradients between 30 m and 250 m water depth are reconstructed accurately within a range between 1.7 and 9.4 °C with a correlation coefficient of 0.77 and a standard deviation of ±1.3 °C.
Project(s):
Coverage:
Median Latitude: -45.249456 * Median Longitude: -3.936011 * South-bound Latitude: -55.615000 * West-bound Longitude: -59.096700 * North-bound Latitude: -20.119000 * East-bound Longitude: 17.364600
Date/Time Start: 1988-03-12T10:28:00 * Date/Time End: 1992-11-22T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
PS1654-1 (PS12/557) * Latitude: -50.162333 * Longitude: 5.766333 * Date/Time: 1988-03-12T10:28:00 * Elevation: -3763.0 m * Penetration: 0.45 m * Recovery: 0.45 m * Location: Atlantic Indik Ridge * Campaign: ANT-VI/3 (PS12) * Basis: Polarstern * Method/Device: Giant box corer (GKG)
PS1750-7 (PS16/262) * Latitude: -42.695000 * Longitude: 12.183333 * Date/Time: 1989-11-04T05:47:00 * Elevation: -4709.0 m * Penetration: 0.08 m * Recovery: 0.08 m * Location: Van Heesen Ridge * Campaign: ANT-VIII/3 (PS16) * Basis: Polarstern * Method/Device: MultiCorer (MUC)
PS1751-2 (PS16/267) * Latitude: -44.498333 * Longitude: 10.481000 * Date/Time: 1989-11-04T21:28:00 * Elevation: -4802.0 m * Penetration: 0.3 m * Recovery: 0.3 m * Location: Agulhas Basin * Campaign: ANT-VIII/3 (PS16) * Basis: Polarstern * Method/Device: MultiCorer (MUC)
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Event label | Event | ||||
2 | LATITUDE | Latitude | Geocode | |||
3 | LONGITUDE | Longitude | Geocode | |||
4 | Elevation of event | Elevation | m | |||
5 | DEPTH, sediment/rock | Depth | m | Geocode | ||
6 | Size fraction | Fraction | Niebler, Hans-Stefan | |||
7 | Globigerina bulloides, δ18O | G. bulloides δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
8 | Globigerinella aequilateralis, δ18O | G. aequilateralis δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
9 | Globigerinella calida, δ18O | G. calida δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
10 | Globigerinita glutinata, δ18O | G. glutinata δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
11 | Globigerinoides conglobatus, δ18O | G. conglobatus δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
12 | Globigerinoides ruber white, δ18O | G. ruber w δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
13 | Globigerinoides sacculifer, δ18O | G. sacculifer δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
14 | Globigerinoides sacculifer sac, δ18O | G. sacculifer sac δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
15 | Globorotalia crassaformis, δ18O | G. crassaf. δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
16 | Globorotalia hirsuta, δ18O | G. hirsuta δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
17 | Globorotalia inflata, δ18O | G. inflata δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
18 | Globorotalia menardii, δ18O | G. menardii δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
19 | Globorotalia scitula, δ18O | G. scitula δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
20 | Globorotalia truncatulinoides dextral, δ18O | G. truncatulinoides d δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
21 | Globorotalia truncatulinoides sinistral, δ18O | G. truncatulinoides s δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
22 | Globorotalia tumida, δ18O | G. tumida δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
23 | Neogloboquadrina dutertrei, δ18O | N. dutertrei δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
24 | Neogloboquadrina pachyderma dextral, δ18O | N. pachyderma d δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
25 | Neogloboquadrina pachyderma sinistral, δ18O | N. pachyderma s δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
26 | Orbulina bilobata, δ18O | O. bilobata δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
27 | Orbulina universa, δ18O | O. universa δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
28 | Pulleniatina obliquiloculata, δ18O | P. obliqu. δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
29 | Sphaeroidinella dehiscens, δ18O | S. dehiscens δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 | |
30 | Turborotalita quinqueloba, δ18O | T. quinqueloba δ18O | ‰ PDB | Niebler, Hans-Stefan | Mass spectrometer Finnigan MAT 251 |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
541 data points