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  • 2000-2004  (1,022)
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  • 1
    Publication Date: 2023-03-03
    Keywords: Alkenone, C37, flux; Alkenone, C37:3+C37:2; Alkenone, C37 normalized to total organic carbon; Alkenone, unsaturation index UK'37; Calculated; Calculated, see reference(s); Calculated from C37 alkenones (Prahl & Wakeham, 1987); Calculated from UK'37 (Prahl et al., 1988); Center for Marine Environmental Sciences; DATE/TIME; Date/time end; DEPTH, water; Duration, number of days; EA8; EA8_trap; Gas chromatography; Heptatriaconta-15E,22E-dien-2-one; Heptatriaconta-8E,15E,22E-trien-2-one; MARUM; Sample code/label; Sea surface temperature, annual mean; SFB261; South Atlantic in Late Quaternary: Reconstruction of Budget and Currents; Trap, sediment; TRAPS
    Type: Dataset
    Format: text/tab-separated-values, 200 data points
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2023-03-03
    Keywords: Alkenone, C37, flux; Alkenone, C37:3+C37:2; Alkenone, C37 normalized to total organic carbon; Alkenone, unsaturation index UK'37; Calculated; Calculated, see reference(s); Calculated from C37 alkenones (Prahl & Wakeham, 1987); Calculated from UK'37 (Prahl et al., 1988); Center for Marine Environmental Sciences; DATE/TIME; Date/time end; DEPTH, water; Duration, number of days; Gas chromatography; Heptatriaconta-15E,22E-dien-2-one; Heptatriaconta-8E,15E,22E-trien-2-one; MARUM; Sample code/label; Sea surface temperature, annual mean; SFB261; South Atlantic in Late Quaternary: Reconstruction of Budget and Currents; Trap; TRAP; Walvis Ridge, Southeast Atlantic Ocean; WR4_trap
    Type: Dataset
    Format: text/tab-separated-values, 200 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2023-07-10
    Keywords: 175-1082A; AGE; Alkenone, C37:3+C37:2; Alkenone, unsaturation index UK'37; Benguela Current, South Atlantic Ocean; Calculated from C37 alkenones (Prahl & Wakeham, 1987); Calculated from UK'37 (Müller et al, 1998); Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; Gas chromatography; GeoB; Geosciences, University of Bremen; Heptatriaconta-15E,22E-dien-2-one; Heptatriaconta-8E,15E,22E-trien-2-one; Intercore correlation; Joides Resolution; Leg175; Sample code/label; Sea surface temperature, annual mean
    Type: Dataset
    Format: text/tab-separated-values, 1792 data points
    Location Call Number Limitation Availability
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  • 4
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    PANGAEA
    In:  Supplement to: Jahn, Britta; Donner, Barbara; Müller, Peter J; Röhl, Ursula; Schneider, Ralph R; Wefer, Gerold (2003): Pleistocene variations in dust input and marine productivity in the northern Benguela Current: Evidence of evolution of global glacial-interglacial cycles. Palaeogeography, Palaeoclimatology, Palaeoecology, 193(3-4), 515-533, https://doi.org/10.1016/S0031-0182(03)00264-5
    Publication Date: 2024-01-09
    Description: We infer variations in paleoproductivity and eolian input at ODP Site 1082 in the Walvis Basin from stable oxygen isotope compositions of the planktonic foraminifera Globorotalia inflata, total organic carbon mass accumulation rates (TOC MAR), and X-ray fluorescence analyses of Fe content. The most pronounced paleoclimatic changes correspond to the time at about 0.9 Ma, when glacial conditions in the northern hemisphere (NH) led to the onset of pronounced 100-kyr glacial-interglacial cycles. We used Fe intensity as a proxy for eolian terrigenous input, and TOC MAR as a paleoproductivity indicator. Paleoproductivity and eolian input show generally higher-amplitude variations of glacial-interglacial cyclicity from 1.5 to 0.58 Ma, indicating pronounced variations in upwellingfavorable winds in this area. At 0.58 Ma, paleoproductivity and eolian input shifted abruptly to lower-amplitude variations with a periodicity of 100 kyr while delta18O values show a trend toward more negative isotope values for the past 0.65 Myr. Especially during glacial periods, oxygen isotope values indicate increasingly warmer sea-surface temperatures toward the end of the Pleistocene. To evaluate the relative influences of NH glaciation and southern hemisphere (SH) insolation as potential forcing mechanisms for variations of eolian input and productivity in the northern Benguela system, we filtered our proxy records at orbital frequencies. The filtered records of Fe intensity and TOC MAR indicate a strong influence of the 100-kyr and 41-kyr frequency bands, supporting our assumption that strong ice buildup in the NH is the dominant trigger for climate changes on the continent and probably in trade-wind intensity. SH insolation and low-latitude precession-related insolation changes were important for paleoproductivity variations in the northern Benguela system, modifying the nutrient supply by southern ocean intermediate waters and the zonal direction of upwelling-inducing trades by the African monsoon system, respectively.
    Keywords: 175-1082A; 175-1082B; 175-1082C; Benguela Current, South Atlantic Ocean; DRILL; Drilling/drill rig; GeoB; Geosciences, University of Bremen; Joides Resolution; Leg175; Ocean Drilling Program; ODP; XRF core scanner
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Limitation Availability
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  • 5
    Publication Date: 2024-01-09
    Keywords: 108-657A; Canarias Sea; Carbon/Nitrogen ratio; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Hydrogen index, mass HC, per unit mass total organic carbon; Joides Resolution; Leg108; Ocean Drilling Program; ODP; Rock eval pyrolysis (Behar et al., 2001); Sample code/label; δ13C, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 14 data points
    Location Call Number Limitation Availability
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  • 6
    Publication Date: 2024-01-09
    Keywords: 175-1082A; Benguela Current, South Atlantic Ocean; Calcium; Copper; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; GeoB; Geosciences, University of Bremen; Intercore correlation; Iron; Joides Resolution; Leg175; Manganese; Ocean Drilling Program; ODP; Potassium; Sample code/label; Strontium; Titanium; X-ray fluorescence core scanner (XRF); XRF core scanner
    Type: Dataset
    Format: text/tab-separated-values, 54002 data points
    Location Call Number Limitation Availability
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  • 7
    Publication Date: 2024-01-09
    Keywords: 175-1082A; AGE; Age, comment; Benguela Current, South Atlantic Ocean; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; GeoB; Geosciences, University of Bremen; Globorotalia inflata, δ13C; Globorotalia inflata, δ18O; Intercore correlation; Joides Resolution; Leg175; Mass spectrometer Finnigan MAT 251; Ocean Drilling Program; ODP; Sample code/label; XRF core scanner
    Type: Dataset
    Format: text/tab-separated-values, 2210 data points
    Location Call Number Limitation Availability
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  • 8
    Publication Date: 2024-01-09
    Keywords: 175-1082B; Benguela Current, South Atlantic Ocean; Calcium; Copper; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; GeoB; Geosciences, University of Bremen; Intercore correlation; Iron; Joides Resolution; Leg175; Manganese; Ocean Drilling Program; ODP; Potassium; Sample code/label; Strontium; Titanium; X-ray fluorescence core scanner (XRF); XRF core scanner
    Type: Dataset
    Format: text/tab-separated-values, 17612 data points
    Location Call Number Limitation Availability
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  • 9
    Publication Date: 2024-01-09
    Keywords: 175-1082C; Benguela Current, South Atlantic Ocean; Calcium carbonate; Carbon, organic, total; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Element analyser CHN; Element analyser CHN, LECO; GeoB; Geosciences, University of Bremen; Intercore correlation; Joides Resolution; Leg175; Ocean Drilling Program; ODP; Sample code/label
    Type: Dataset
    Format: text/tab-separated-values, 520 data points
    Location Call Number Limitation Availability
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  • 10
    Publication Date: 2024-01-09
    Keywords: 175-1078C; AGE; Alkenone, unsaturation index UK'37; Benguela Current, South Atlantic Ocean; Calculated from C37 alkenones (Prahl & Wakeham, 1987); Calculated from UK'37 (Müller et al, 1998); Center for Marine Environmental Sciences; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg175; MARUM; Ocean Drilling Program; ODP; Sample code/label; Sea surface temperature, annual mean
    Type: Dataset
    Format: text/tab-separated-values, 309 data points
    Location Call Number Limitation Availability
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