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
  • 2010-2014
  • 2000-2004  (9)
  • 2004  (9)
Document type
Keywords
Publisher
Years
  • 2010-2014
  • 2000-2004  (9)
Year
  • 1
    facet.materialart.
    Unknown
    (Table 1) Bulk parameters and alkenone-based SST estimates from surface sediments, Southeast Atlantic (2004)
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: Anker24; Anker26; BC; Box corer; Calculated; Calculated from UK'37 (Müller et al, 1998); Carbon, organic, marine matter; Carbon, organic, terrestrial matter; Carbon, organic, total; DEPTH, sediment/rock; Element analyser, Fisons NA 1500 NCS; Elevation of event; Event label; GeoB; Geosciences, University of Bremen; Grab; GRAB; LATITUDE; LONGITUDE; Mass spectrometer Finnigan Delta Plus; NIOZ89; Sea surface temperature, annual mean; Southeast Atlantic; T89-10; T89-11; T89-12; T89-13; T89-14; T89-15; T89-16; T89-17; T89-19; T89-20; T89-21; T89-22; T89-23; T89-24; T89-25; T89-28; T89-30; T89-31; T89-32; T89-33; T89-34; T89-35; T89-36; T89-40; T89-41; T89-42-1; T89-47; Tyro; δ13C, organic carbon
    Type: Dataset
    Format: text/tab-separated-values, 143 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    (Table 2) 14C ages of samples from box and piston cores used to calculate accumulation rates for surface sediments, Southeast Atlantic (2004)
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: Accumulation rate, mass; Age, 14C AMS; Age, comment; Age, dated; Age, dated standard deviation; Age model; Age model in radiocarbon 14C ages; BC; Box corer; Calculated; DEPTH, sediment/rock; Elevation of event; Event label; GeoB; Geosciences, University of Bremen; LATITUDE; LONGITUDE; NIOZ89; Southeast Atlantic; T89-10; T89-11; T89-12; T89-13; T89-14; T89-15; T89-16; T89-17; T89-19; T89-20; T89-21; T89-22; T89-23; T89-24; T89-25; T89-28; T89-30; T89-31; T89-32; T89-33; T89-34; T89-35; T89-36; T89-40; T89-41; T89-42-1; T89-47; Tyro
    Type: Dataset
    Format: text/tab-separated-values, 145 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 3
    facet.materialart.
    Unknown
    Age determination of Southeast Atlantic sediment cores (2004)
    PANGAEA
    In:  Supplement to: Versteegh, Gerard J M; Schefuß, Enno; Dupont, Lydie M; Marret, Fabienne; Sinninghe Damsté, Jaap S; Jansen, J H Fred (2004): Taraxerol and Rhizophora pollen as proxies for tracking past mangrove ecosystems. Geochimica et Cosmochimica Acta, 68(3), 411-422, https://doi.org/10.1016/S0016-7037(03)00456-3
    Details
    Publication Date: 2023-10-21
    Description: Angola Basin and Cape Basin (southeast Atlantic) surface sediments and sediment cores show that maxima in the abundance of taraxerol (relative to other land-derived lipids) covary with maxima in the relative abundance of pollen from the mangrove tree genus Rhizophora and that in the surface sediments offshore maxima in the relative abundance of taraxerol occur at latitudes with abundant coastal mangrove forests. Together with the observation that Rhizophora mangle and Rhizophora racemosa leaves are extraordinarily rich in taraxerol, this strongly indicates that taraxerol can be used as a lipid biomarker for mangrove input to the SE Atlantic. The proxy-environment relations for taraxerol and Rhizophora pollen down-core show that increased taraxerol and Rhizophora pollen abundances occur during transgressions and periods with a humid climate. These environmental changes modify the coastal erosion and sedimentation patterns, enhancing the extent of the mangrove ecosystem and/or the transport of mangrove organic matter offshore. Analyses of mid-Pleistocene sediments show that interruption of the pattern of taraxerol maxima during precession minima occurs almost only during periods of low obliquity. This demonstrates the complex environmental response of the interaction between precession-related humidity cycles and obliquity-related sea-level changes on mangrove input.
    Keywords: GeoB; Geosciences, University of Bremen; NIOZ89; PC; Piston corer; SFB261; South Atlantic in Late Quaternary: Reconstruction of Budget and Currents; Southeast Atlantic; T89-16; T89-16-PC; Tyro
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 4
    facet.materialart.
    Unknown
    (Table 2) Age assessment T89-16, 14C dates and their calibration, Southeast Atlantic (2004)
    PANGAEA
    Details
    Publication Date: 2023-10-21
    Keywords: Age, 14C AMS; Age, dated; Age, dated, range, maximum; Age, dated, range, minimum; Age, dated standard deviation; DEPTH, sediment/rock; GeoB; Geosciences, University of Bremen; NIOZ89; PC; Piston corer; SFB261; South Atlantic in Late Quaternary: Reconstruction of Budget and Currents; Southeast Atlantic; T89-16; T89-16-PC; Tyro
    Type: Dataset
    Format: text/tab-separated-values, 70 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 5
    facet.materialart.
    Unknown
    (TAble 3) Spline interpolated ages of T89-16 sediment samples used for lipid analyses, Southeast Atlantic (2004)
    PANGAEA
    Details
    Publication Date: 2023-10-21
    Keywords: Age, 14C AMS; Age, dated; DEPTH, sediment/rock; GeoB; Geosciences, University of Bremen; NIOZ89; PC; Piston corer; SFB261; South Atlantic in Late Quaternary: Reconstruction of Budget and Currents; Southeast Atlantic; T89-16; T89-16-PC; Tyro
    Type: Dataset
    Format: text/tab-separated-values, 23 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 6
    facet.materialart.
    Unknown
    (Table 4) Lipid biomarker concentrations from surface sediments, Southeast Atlantic (2004)
    PANGAEA
    Details
    Publication Date: 2023-11-30
    Keywords: 24-Ethylcholest-5-en-3beta-ol per unit sediment mass; 4alpha,23,24-Trimethyl-5alpha-cholest-22E-en-3beta-ol per unit sediment mass; Alkenone per unit sediment mass; Anker24; Anker26; BC; Box corer; C40 biphytanediols per unit sediment mass; Cholesterol per unit sediment mass; Delta 22-cholesterol per unit sediment mass; DEPTH, sediment/rock; Diatomsterol per unit sediment mass; Elevation of event; Event label; Gas chromatography; Gas chromatography - Mass spectrometry (GC-MS); GeoB; Geosciences, University of Bremen; Grab; GRAB; Latitude of event; Loliolide per unit sediment mass; Long-chain fatty acids C24+C26+C28 per unit sediment mass; Longitude of event; n-Alkanol long chain alcohols C24+C26+C28 per unit sediment mass; NIOZ89; Southeast Atlantic; stigmasta-5,24(28)-dien-3-ol per unit sediment mass; Sum C28-C32 diols per unit sediment mass; T89-10; T89-11; T89-12; T89-13; T89-14; T89-15; T89-16; T89-17; T89-19; T89-20; T89-21; T89-22; T89-23; T89-25; T89-28; T89-30; T89-31; T89-32; T89-33; T89-34; T89-35; T89-36; T89-40; T89-41; T89-42-1; T89-47; Tyro
    Type: Dataset
    Format: text/tab-separated-values, 303 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 7
    facet.materialart.
    Unknown
    Tropical Atlantic SST during the mid-Pleistocene transition (MPT) of ODP Hole 175-1077B (2004)
    PANGAEA
    In:  Supplement to: Schefuß, Enno; Sinninghe Damsté, Jaap S; Jansen, J H Fred (2004): Forcing of tropical Atlantic sea surface temperatures during the mid-Pleistocene transition. Paleoceanography, 19, PA4029, https://doi.org/10.1029/2003PA000892
    Details
    Publication Date: 2024-01-09
    Description: We compare a new mid-Pleistocene sea surface temperature (SST) record from the eastern tropical Atlantic to changes in continental ice volume, orbital insolation, Atlantic deepwater ventilation, and Southern Ocean front positions to resolve forcing mechanisms of tropical Atlantic SST during the mid-Pleistocene transition (MPT). At the onset of the MPT, a strong tropical cooling occurred. The change from a obliquity- to a eccentricity-dominated cyclicity in the tropical SST took place at about 650 kyr BP. In orbital cycles, tropical SST changes significantly preceded continental ice-volume changes but were in phase with movements of Southern Ocean fronts. After the onset of large-amplitude 100-kyr variations, additional late glacial warming in the eastern tropical Atlantic was caused by enhanced return flow of warm waters from the western Atlantic driven by strong trade winds. Pronounced 80-kyr variations in tropical SST occurred during the MPT, in phase with and likely directly forced by transitional continental ice-volume variations. During the MPT, a prominent anomalous long-term tropical warming occurred, likely generated by extremely northward displaced Southern Ocean fronts. While the overall pattern of global climate variability during the MPT was determined by changes in mean state and frequency of continental ice volume variations, tropical Atlantic SST variations were primarily driven by early changes in Subantarctic sea-ice extent and coupled Southern Ocean frontal positions.
    Keywords: 175-1077B; AGE; Alkenone, unsaturation index UK'37; Benguela Current, South Atlantic Ocean; Calculated from C37 alkenones (Brassell et al., 1986); Calculated from C37 alkenones (Prahl & Wakeham, 1987); Center for Marine Environmental Sciences; Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Intercore correlation; Joides Resolution; Leg175; MARUM; Ocean Drilling Program; ODP; Sample code/label; Sea surface temperature, annual mean
    Type: Dataset
    Format: text/tab-separated-values, 856 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 8
    facet.materialart.
    Unknown
    Accumulation rates of plant-wax-derived long-chain C25 to C35 odd-numbered n-alkanes and δ¹³C values of the n-C31 alkane of ODP Hole 175-1077B (2004)
    PANGAEA
    In:  Supplement to: Schefuß, Enno; Schouten, Stefan; Jansen, J H Fred; Sinninghe Damsté, Jaap S (2003): African vegetation controlled by tropical sea surface temperatures in the mid-Pleistocene period. Nature, 422(6930), 418-421, https://doi.org/10.1038/nature01500
    Details
    Publication Date: 2024-02-14
    Description: The dominant forcing factors for past large-scale changes in vegetation are widely debated. Changes in the distribution of C4 plants-adapted to warm, dry conditions and low atmospheric CO2 concentrations (Collatz et al., 1998, doi:10.1007/s004420050468) -have been attributed to marked changes in environmental conditions, but the relative impacts of changes in aridity, temperature (Pagani et al., 1999, doi:10.1126/science.285.5429.876; Huang et al., 2001, doi:10.1126/science.1060143) and CO2 concentration (Cerling et al., 1993, doi:10.1038/361344a0; Kuypers et al., 1999, doi:10.1038/20659) are not well understood. Here, we present a record of African C4 plant abundance between 1.2 and 0.45 million years ago, derived from compound-specific carbon isotope analyses of wind-transported terrigenous plant waxes. We find that large-scale changes in African vegetation are linked closely to sea surface temperatures in the tropical Atlantic Ocean. We conclude that, in the mid-Pleistocene, changes in atmospheric moisture content - driven by tropical sea surface temperature changes and the strength of the African monsoon - controlled aridity on the African continent, and hence large-scale vegetation changes.
    Keywords: 175-1077B; Accumulation rate, mass; AGE; Benguela Current, South Atlantic Ocean; Calculated, see reference(s); Carbon Preference Index, n-Alkanes (C25-C33); Depth, composite; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Gas chromatography - Mass spectrometry (GC-MS); GeoB; Geosciences, University of Bremen; Intercore correlation; Joides Resolution; Leg175; n-Alkane, average chain length; n-Alkane, C31/(C29+C31) ratio; n-Alkane C25-C35, flux; n-Alkane C29, δ13C; n-Alkane C31, δ13C; n-Alkane C4 plant, reference to C29; n-Alkane C4 plant, reference to C31; Ocean Drilling Program; ODP; Sample code/label; Sum n-alkanes C25-C35; Sum odd numbered n-alkanes C25-C35; Sum odd numbered n-alkanes C25-C35, flux
    Type: Dataset
    Format: text/tab-separated-values, 2492 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
  • 9
    facet.materialart.
    Unknown
    (Table 5) n-Alkane concentrations and δ¹³C values of n-alkanes from surface sediments, Southeast Atlantic (2004)
    PANGAEA
    Details
    Publication Date: 2024-02-14
    Keywords: Anker24; Anker26; BC; Box corer; Calculated, see reference(s); Carbon Preference Index, n-Alkanes (C27-C33); DEPTH, sediment/rock; Elevation of event; Event label; Gas chromatography - Mass spectrometry (GC-MS); GeoB; Geosciences, University of Bremen; Grab; GRAB; Latitude of event; Longitude of event; n-Alkane C24, δ13C; n-Alkane C29, δ13C; n-Alkane C31, δ13C; n-Alkane C4 plant; n-Alkane weighted mean, δ13C; NIOZ89; see reference(s); Southeast Atlantic; Sum odd numbered n-alkanes C25-C35; T89-10; T89-11; T89-12; T89-13; T89-14; T89-15; T89-16; T89-17; T89-19; T89-21; T89-22; T89-23; T89-24; T89-25; T89-28; T89-30; T89-31; T89-33; T89-35; T89-36; T89-40; T89-47; Tyro
    Type: Dataset
    Format: text/tab-separated-values, 211 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...