GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Data  (3)
  • 09070100; ANTARES-I_KBE3; ANTARES-I_KTB11; ANTARES-I_KTB13; ANTARES-I_KTB16; ANTARES-I_KTB19; ANTARES-I_KTB21; ANTARES-I_KTB5; ANTARES-I_KTB6; ANTARES-I,35MF75_1; Carbon/Nitrogen ratio; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Event label; Latitude of event; Longitude of event; Marion Dufresne (1972); MD75; MUC; MultiCorer; Nathaniel B. Palmer; NBP9604; NBP9604-02-2; Southern Ocean  (1)
  • 4.5BC53; 4BC51; 5.5BC58; 5BC37; 6BC74; Accumulation rate, calcium carbonate; Accumulation rate, non carbonate; BC; BC22; BC36; BC56; BC63; Box corer; Calcium carbonate; Density, dry bulk; DEPTH, sediment/rock; Elevation of event; Event label; Latitude of event; Longitude of event; Ontong Java Plateau; PC; Piston corer; RC10; RC10-139; RC12; RC12-121; RC12-124; RC17; RC17-176; RC17-181; RC17-183; Robert Conrad; Sedimentation rate; V19; V19-97; V19-99; V24; V24-108; V24-109; V28; V28-237; V32; V32-173; Vema  (1)
  • Age, 14C AMS; Age, dated; Age, dated standard deviation; Bottom water temperature; Cibicidoides pachyderma, Magnesium/Calcium ratio; DEPTH, sediment/rock; Elevation of event; Estimated; Event label; Florida Strait; Inductively coupled plasma - mass spectrometry (ICP-MS); KN166-2; Knorr; KNR166-2; KNR166-2-103; KNR166-2-11; KNR166-2-110; KNR166-2-112; KNR166-2-118; KNR166-2-121; KNR166-2-123; KNR166-2-125; KNR166-2-13; KNR166-2-134; KNR166-2-138; KNR166-2-16; KNR166-2-19; KNR166-2-22; KNR166-2-28; KNR166-2-5; KNR166-2-50; KNR166-2-53; KNR166-2-55; KNR166-2-62; KNR166-2-68; KNR166-2-72; KNR166-2-76; KNR166-2-79; KNR166-2-84; KNR166-2-89; KNR166-2-92; KNR166-2-94; KNR166-2-97; Laboratory code/label; Latitude of event; Longitude of event; Magnesium/Calcium ratio, standard deviation; MUC; MultiCorer; Reference/source; Salinity; Δ carbonate ion content  (1)
Document type
  • Data  (3)
Source
Keywords
Publisher
Years
  • 1
    facet.materialart.
    Unknown
    (Table 1) Mg/Ca ratios of Cibicidoides pachyderma and age determination of core top sediments from the Florida Straits
    PANGAEA
    In:  Supplement to: Marchitto, Thomas M; Bryan, Sean P; Curry, William B; McCorkle, Daniel C (2007): Mg/Ca temperature calibration for the benthic foraminifer Cibicidoides pachyderma. Paleoceanography, 22(1), PA1203, https://doi.org/10.1029/2006PA001287
    Details
    Publication Date: 2023-06-27
    Description: The recent development of foraminiferal Mg/Ca as a paleotemperature proxy has enabled the extraction of global ice volume and local salinity from the more traditional paleotemperature proxy d18O. The benthic foraminiferal genus Cibicidoides is widely used in paleoceanographic reconstructions because of its epifaunal habitat and cosmopolitan distribution, and it has received early attention in Mg/Ca work. However, existing temperature calibrations for Cibicidoides rely heavily on C. pachyderma core top data from one location, Little Bahamas Bank, where authigenic processes and/or reworking may result in elevated warm water Mg/Ca values. Here we present new C. pachyderma Mg/Ca data from a series of 29 high-quality multicore tops collected in the Florida Straits, spanning a temperature range of 5.8-18.6°C. In contrast to previous calibrations, we find no evidence for a strongly exponential response to temperature. The data are best explained by a linear relationship, with a sensitivity of 0.12 mmol/mol per °C.
    Keywords: Age, 14C AMS; Age, dated; Age, dated standard deviation; Bottom water temperature; Cibicidoides pachyderma, Magnesium/Calcium ratio; DEPTH, sediment/rock; Elevation of event; Estimated; Event label; Florida Strait; Inductively coupled plasma - mass spectrometry (ICP-MS); KN166-2; Knorr; KNR166-2; KNR166-2-103; KNR166-2-11; KNR166-2-110; KNR166-2-112; KNR166-2-118; KNR166-2-121; KNR166-2-123; KNR166-2-125; KNR166-2-13; KNR166-2-134; KNR166-2-138; KNR166-2-16; KNR166-2-19; KNR166-2-22; KNR166-2-28; KNR166-2-5; KNR166-2-50; KNR166-2-53; KNR166-2-55; KNR166-2-62; KNR166-2-68; KNR166-2-72; KNR166-2-76; KNR166-2-79; KNR166-2-84; KNR166-2-89; KNR166-2-92; KNR166-2-94; KNR166-2-97; Laboratory code/label; Latitude of event; Longitude of event; Magnesium/Calcium ratio, standard deviation; MUC; MultiCorer; Reference/source; Salinity; Δ carbonate ion content
    Type: Dataset
    Format: text/tab-separated-values, 182 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    (Table 3) Accumulation rates of surface sediments from the Ontong Java Plateau
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 4.5BC53; 4BC51; 5.5BC58; 5BC37; 6BC74; Accumulation rate, calcium carbonate; Accumulation rate, non carbonate; BC; BC22; BC36; BC56; BC63; Box corer; Calcium carbonate; Density, dry bulk; DEPTH, sediment/rock; Elevation of event; Event label; Latitude of event; Longitude of event; Ontong Java Plateau; PC; Piston corer; RC10; RC10-139; RC12; RC12-121; RC12-124; RC17; RC17-176; RC17-181; RC17-183; Robert Conrad; Sedimentation rate; V19; V19-97; V19-99; V24; V24-108; V24-109; V28; V28-237; V32; V32-173; Vema
    Type: Dataset
    Format: text/tab-separated-values, 105 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 3
    facet.materialart.
    Unknown
    CN of diatom-bound organic matter in surface sediments (1999)
    PANGAEA
    In:  Supplement to: Sigman, Daniel M; Altabet, Mark A; Francois, Roger; McCorkle, Daniel C; Gaillard, Jean-Francois (1999): The isotopic composition of diatom-bound nitrogen in Southern Ocean sediments. Paleoceanography, 14(2), 118-134, https://doi.org/10.1029/1998PA900018
    Details
    Publication Date: 2024-07-01
    Description: Treatment of diatom microfossils from Southern Ocean sediments with hot perchloric acid leaves a "diatom-bound" N fraction which is 0-4 per mil lower in d15N than the bulk sediment, typically 3 per mil lower in recent Antarctic diatom ooze. Results from Southern Ocean surface sediments indicate that early diagenetic changes in bulk sediment N content and d15N are not reflected in diatom-bound N, suggesting that diatom-bound N is physically protected from early diagenesis by the microfossil matrix. A meridional transect of multicores from the Indian sector of the Southern Ocean shows a northward increase in the d15N of diatom-bound N, suggesting that diatom-bound d15N, like bulk sedimentary d15N, varies with nitrate utilization in the overlying surface waters. The d15N of diatom-bound N is 3-4 per mil higher in glacial age Antarctic sediments than in Holocene sediments, supporting the hypothesis, previously based on bulk sediment d15N, that nitrate utilization in the surface Antarctic was higher during the last ice age. While there are important uncertainties, the inferred range of utilization changes could potentially explain the entire ~80 ppm amplitude of observed glacial/interglacial variations in atmospheric CO2.
    Keywords: 09070100; ANTARES-I_KBE3; ANTARES-I_KTB11; ANTARES-I_KTB13; ANTARES-I_KTB16; ANTARES-I_KTB19; ANTARES-I_KTB21; ANTARES-I_KTB5; ANTARES-I_KTB6; ANTARES-I,35MF75_1; Carbon/Nitrogen ratio; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Event label; Latitude of event; Longitude of event; Marion Dufresne (1972); MD75; MUC; MultiCorer; Nathaniel B. Palmer; NBP9604; NBP9604-02-2; Southern Ocean
    Type: Dataset
    Format: text/tab-separated-values, 27 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...