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  • 2000-2004  (22)
Document type
Keywords
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Palaeo-oceanography Deepwater variability in the Holocene epoch (2003)
    [s.l.] : Nature Publishing Group
    Nature 422 (2003), S. 277-277 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The conversion of surface water to deep water in the North Atlantic results in the release of heat from the ocean to the atmosphere, which may have amplified millennial-scale climate variability during glacial times and could even have contributed to the past 11,700 years of relatively mild ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/422277b
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Stable isotope ratios of Cibicidoides wuellerstorfi of sediment core V24-253 (2000)
    PANGAEA
    Details
    Publication Date: 2023-09-01
    Keywords: Cibicidoides wuellerstorfi, δ13C; Cibicidoides wuellerstorfi, δ18O; DEPTH, sediment/rock; Mass spectrometer Finnigan MAT 252; PC; Piston corer; V24; V24-253; Vema
    Type: Dataset
    Format: text/tab-separated-values, 58 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    (Table 2) Trace metal ratios of various benthic foraminifera shells (2002)
    PANGAEA
    In:  Supplement to: Marchitto, Thomas M; Oppo, Delia W; Curry, William B (2002): Paired benthic foraminiferal Cd/Ca and Zn/Ca evidence for a greatly increased presence of Southern Ocean Water in the glacial North Atlantic. Paleoceanography, 17(3), 10-1-10-18, https://doi.org/10.1029/2000PA000598
    Details
    Publication Date: 2024-01-09
    Description: Benthic foraminiferal d13C and Cd/Ca studies suggest that deep Atlantic circulation during the Last Glacial Maximum was very different from today, with high-nutrient (low d13C, high Cd) deep Southern Ocean Water (SOW) penetrating far into the North Atlantic. However, if some glacial d13C values are biased by productivity artifacts and/or air-sea exchange processes, then the existing d13C data may be consistent with the continual dominance of North Atlantic Deep Water (NADW). Cibicidoides wuellerstorfi Cd/Ca results presented here indicate that the glacial North Atlantic was strongly enriched in dissolved Cd below ~2500 m depth. If NADW formation was still vigorous relative to SOW formation, these data could be explained by either increased preformed nutrient levels in the high-latitude North Atlantic or by increased organic matter remineralization within lower NADW. High glacial Zn/Ca values in the same samples, however, are best explained by a substantially increased mixing with Zn-rich SOW. The cause was most likely a partial replacement of NADW by less dense Glacial North Atlantic Intermediate Water. This reorganization also lowered deep North Atlantic [CO3]2- concentrations by perhaps 10 to 15 µmol/kg.
    Keywords: 162-980; Cadmium/Calcium ratio; Calcium; CH8X; CHN82-04; CHN82-11; CHN82-15; CHN82-20; Comment; COMPCORE; Composite Core; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Elevation of event; Epoch; Event label; Jean Charcot; Joides Resolution; Latitude of event; Leg162; Longitude of event; Manganese/Calcium ratio; Ocean Drilling Program; ODP; PC; Piston corer; South Atlantic Ocean; Species; V28; V28-73; V29; V29-193; V29-202; V29-204; Vema; Zinc/Calcium ratio
    Type: Dataset
    Format: text/tab-separated-values, 445 data points
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    DATA PANGAEA
  • 4
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    Stable carbon and oxygen isotope ratios of Cibicidoides wuellerstorfi in the 500 to 1000 kyr section of ODP Site 162-980 in the subpolar North Atlantic (2000)
    PANGAEA
    Details
    Publication Date: 2024-03-02
    Keywords: 162-980; AGE; Cibicidoides wuellerstorfi, δ13C; Cibicidoides wuellerstorfi, δ18O; COMPCORE; Composite Core; DEPTH, sediment/rock; Joides Resolution; Leg162; Mass spectrometer VG Micromass Prism; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 1162 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Age model of ODP Site 162-980 in the subpolar North Atlantic (2000)
    PANGAEA
    Details
    Publication Date: 2024-03-02
    Keywords: 162-980; Age model; COMPCORE; Composite Core; DEPTH, sediment/rock; Joides Resolution; Leg162; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 48 data points
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    DATA PANGAEA
  • 6
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    Age determination and stable isotope record of ODP Hole 162-980B (2003)
    PANGAEA
    In:  Supplement to: Oppo, Delia W; McManus, Jerry F; Cullen, James L (2003): Palaeo-oceanography: Deepwater variability in the Holocene epoch. Nature, 422(6929), 277-277, https://doi.org/10.1038/422277b
    Details
    Publication Date: 2024-03-02
    Description: The conversion of surface water to deep water in the North Atlantic results in the release of heat from the ocean to the atmosphere, which may have amplified millennial-scale climate variability during glacial times (Broecker et al., 1990, doi:10.1029/PA005i004p00469) and could even have contributed to the past 11,700 years of relatively mild climate (known as the Holocene epoch) (Bond et al., 2001, doi:10.1126/science.1065680; Alley et al., 1997, doi:10.1130/0091-7613(1997)025〈0483:HCIAPW〉2.3.CO;2; Keigwin and Boyle, 2000, doi:10.1073/pnas.97.4.1343). Here we investigate changes in the carbon-isotope composition of benthic foraminifera throughout the Holocene and find that deep-water production varied on a centennial-millennial timescale. These variations may be linked to surface and atmospheric events that hint at a contribution to climate change over this period.
    Keywords: 162-980B; DRILL; Drilling/drill rig; Joides Resolution; Leg162; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: application/zip, 2 datasets
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    DATA PANGAEA
  • 7
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    Stable isotop record of sediments across MIS 5 and Termination II (2001)
    PANGAEA
    In:  Supplement to: Oppo, Delia W; Keigwin, Lloyd D; McManus, Jerry F; Cullen, James L (2001): Persistent suborbital climate variability in marine isotope stage 5 and termination II. Paleoceanography, 16(3), 280-292, https://doi.org/10.1029/2000PA000527
    Details
    Publication Date: 2024-03-02
    Description: New surface water records from two high sedimentation rate sites, located in the western subtropical North Atlantic near the axis of the Gulf Stream, provide clear evidence of suborbital climate variations through marine isotope stage (MIS) 5 persisting even into the warm peak of the interglaciation (substage 5e). We found that the amplitude of suborbital climate oscillations did not vary significantly for the whole of MIS 5, implying that ice volume has little or no influence on the amplitude of suborbital climate variability in this region. Although some records suggest that longer suborbital variations (4-10 kyr) during MIS 5 are linked to deepwater changes, none of the existing records is of sufficient resolution to assess if a linkage occurred for oscillations shorter than 4 kyr. However, when examined in conjunction with published data from the Norwegian Sea, new evidence from the subpolar North Atlantic suggests that coupled surface-deepwater oscillations occurred during the penultimate deglaciation. This supports the hypothesis that during glacial and deglacial times, ocean-ice interactions and deepwater variability amplify suborbital climate change at higher latitudes. We suggest that during the penultimate deglaciation the North Atlantic deepwater source varied between Nordic Sea and open North Atlantic locations, in parallel with surface temperature oscillations.
    Keywords: Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 12 datasets
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    DATA PANGAEA
  • 8
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    (Table S2) Stable carbon and oxygen isotope record of Cibicidoides wuellerstorfi of ODP Hole 162-980B (2003)
    PANGAEA
    Details
    Publication Date: 2024-03-02
    Keywords: 162-980B; Age model; Cibicidoides wuellerstorfi, δ13C; Cibicidoides wuellerstorfi, δ18O; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg162; Ocean Drilling Program; ODP; Sample code/label; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 349 data points
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    DATA PANGAEA
  • 9
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    (Table 1) Age determination of subtropical South Atlantic sediment cores (2003)
    PANGAEA
    Details
    Publication Date: 2024-03-02
    Keywords: 0103GGC; Age, 14C AMS; Age, 14C calibrated, CALIB (Stuiver & Reimer, 1993); Age, dated; Age, dated material; Age, dated standard error; Calendar age; DEPTH, sediment/rock; EN120; EN120-1GGC; Endeavor; Event label; GC; GGC; Giant gravity corer; Gravity corer; KN159-5; Knorr; KNR159-36; KNR159-5; KNR159-5-36GGC; Laboratory code/label; OC205-02; OC205-02_0103GGC; Oceanus; Oceanus205-02; Providence Channel; Reference/source; South Atlantic Ocean; Western Atlantic
    Type: Dataset
    Format: text/tab-separated-values, 222 data points
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    DATA PANGAEA
  • 10
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    Stable isotopic composition of Cibicidoides wuellerstorfi of ODP Hole 162-980 (2001)
    PANGAEA
    Details
    Publication Date: 2024-03-02
    Keywords: 162-980; AGE; Cibicidoides wuellerstorfi, δ13C; Cibicidoides wuellerstorfi, δ18O; COMPCORE; Composite Core; DEPTH, sediment/rock; Isotope ratio mass spectrometry; Joides Resolution; Leg162; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 164 data points
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    DATA PANGAEA
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