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  • 1
    Book
    Book
    Pelagic, hemipelagic and turbidite deposition in the Arabian Sea during the late quaternary : unravelling the signals of eolian and fluvial sediment supply as functions of tectonics, sea-level and climate change by means of end-member modelling of siliciclastic grain-size distributions = Pelagische, hemipelagische en turbidiet sedimentatie in de Arabische Zee gedurende het laat kwartair (1999)
    Utrecht : Univ.
    Details Availability
    Keywords: Dissertation ; Report ; Aufsatzsammlung ; Hochschulschrift ; Arabisches Meer ; Meeressediment ; Quartär ; Arabisches Meer ; Sedimentation ; Klimaänderung ; Quartär ; Arabisches Meer ; Sedimentation ; Eustatische Meeresspiegelschwankung ; Quartär ; Arabisches Meer ; Sedimentation ; Tektonik ; Quartär
    Type of Medium: Book
    Pages: 192 S. , graph. Darst.
    ISBN: 9057440261
    Series Statement: Geologica ultraiectina 168
    Language: English
    Note: Zugl.: Utrecht, Univ., Diss., 1999
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  • 2
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    Radiocarbon dates, grain size measurements and selected foraminifera analysis from sediment cores AvH248260-2 and AvH248260-1, Ameralik Fjord, SW Greenland
    PANGAEA
    In:  Supplement to: Møller, H S; Jensen, Sven; Kuijpers, Antoon; Aagaard-Sørensen, Steffen; Seidenkrantz, Marit-Solveig; Prins, Maarten Arnoud; Endler, Rudolf; Mikkelsen, Naja (2006): Late-Holocene environment and climatic changes in Ameralik Fjord, southwest Greenland: evidence from the sedimentary record. The Holocene, 16(5), 685-695, https://doi.org/10.1191/0959683606hl963rp
    Details
    Publication Date: 2023-05-12
    Description: Sedimentological and geochemical (XRF) data together with information from diatom and benthic foraminiferal records of a 3.5 m long gravity core from Ameralik Fjord, southern West Greenland, is used for reconstructing late-Holocene environmental changes in this area. The changes are linked to large-scale North Atlantic ocean and climate variability. AMS 14C-dating of benthic foraminifera indicates that the sediment core records the last 4400 years and covers the termination of the Holocene Thermal Maximum (HTM). The late HTM (4.4 3.2 ka BP) is characterized by high accumulation rates of fine (silty) sediments related to strong meltwater discharge from the Inland Ice. The HTM benthic foraminiferal fauna demonstrates the presence of well-ventilated, saline bottom water originating from inflow of subsurface West Greenland Current water of Atlantic (Irminger Sea) origin. The hydrographic conditions were further characterized by limited sea ice probably related to a mild and relatively windy winter climate. After 3.2 ka BP lower fine-grained sedimentation rates, but a larger input from sea-ice rafted or aeolian coarse material prevailed. This can be related to colder atmospheric conditions with a decreased meltwater discharge and more widespread sea-ice cover in the fjord.
    Keywords: Ameralik Fjord; AvH248260-2; GC; Gravity corer
    Type: Dataset
    Format: application/zip, 4 datasets
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    DATA PANGAEA
  • 3
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    Mean annula temperature reconstruction for East Asia
    PANGAEA
    In:  Supplement to: Peterse, Francien; Prins, Maarten Arnoud; Beets, Christiaan J; Troelstra, Simon; Zheng, Hongbo; Gu, Zhaoyan; Schouten, Stefan; Sinninghe Damsté, Jaap S (2011): Decoupled warming and monsoon precipitation in East Asia over the last deglaciation. Earth and Planetary Science Letters, 301(1-2), 256-264, https://doi.org/10.1016/j.epsl.2010.11.010
    Details
    Publication Date: 2023-05-12
    Description: Our understanding of the continental climate development in East Asia is mainly based on loess-paleosol; sequences and summer monsoon precipitation reconstructions based on oxygen isotopes (?18O) of stalagmites from several Chinese caves. Based on these records, it is thought that East Asian Summer Monsoon (EASM) precipitation generally follows Northern Hemisphere (NH) summer insolation. However, not much is known about the magnitude and timing of deglacial warming on the East Asian continent. In this study we reconstruct continental air temperatures for central China covering the last 34,000 yr, based on the distribution of fossil branched tetraether membrane lipids of soil bacteria in a loess-paleosol sequence from the Mangshan loess plateau. The results indicate that air temperature varied in phase with NH summer insolation, and that the onset of deglacial warming at ~19 kyr BP is parallel in timing with other continental records from e.g. Antarctica, southern Africa and South-America. The air temperature increased from ~15 °C at the onset of the warming to a maximum of ~27 °C in the early Holocene (~12 kyr BP), in agreement with the temperature increase inferred from e.g. pollen and phytolith data, and permafrost limits in central China. Comparison of the tetraether membrane lipid-derived temperature record with loess-paleosol proxy records and stalagmite ?18O records shows that the strengthening of EASM precipitation lagged that of deglacial warming by ca. 3 kyr. Moreover, intense soil formation in the loess deposits, caused by substantial increases in summer monsoon precipitation, only started around 12 kyr BP (ca. 7 kyr lag). Our results thus show that the intensification of EASM precipitation unambiguously lagged deglacial warming and NH summer insolation, and may contribute to a better understanding of the mechanisms controlling ice age terminations.
    Keywords: NIOZ_UU; NIOZ Royal Netherlands Institute for Sea Research, and Utrecht University
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 4
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    Planktic foraminifera fauna and stable isotope from sediment core DS97-2P and GS06-144 sampled at the Reykjanes Ridge (2019)
    PANGAEA
    In:  Supplement to: Perner, Kerstin; Moros, Matthias; Jansen, Eystein; Kuijpers, Antoon; Troelstra, Simon; Prins, Maarten Arnoud (2018): Subarctic Front migration at the Reykjanes Ridge during the mid- to late Holocene: evidence from planktic foraminifera. Boreas, 47(1), 175-188, https://doi.org/10.1111/bor.12263
    Details
    Publication Date: 2023-01-30
    Description: Expansion of fresh and sea-ice loaded surface waters from the Arctic Ocean into the sub-polar North Atlantic is suggested to modulate the northward heat transport within the North Atlantic Current (NAC). The Reykjanes Ridge south of Iceland is a suitable area to reconstruct changes in the mid- to late Holocene fresh and sea-ice loaded surface water expansion, which is marked by the Subarctic Front (SAF). Here, shifts in the location of the SAF result from the interaction of freshwater expansion and inflow of warmer and saline (NAC) waters to the Ridge. Using planktic foraminiferal assemblage and concentration data from a marine sediment core on the eastern Reykjanes Ridge elucidates SAF location changes and thus, changes in the water-mass composition (upper ~200 m) during the last c. 5.8 ka BP. Our foraminifer data highlight a late Holocene shift (at c. 3.0 ka BP) in water-mass composition at the Reykjanes Ridge, which reflects the occurrence of cooler and fresher surface waters when compared to the mid-Holocene. We document two phases of SAF presence at the study site: from (i) c. 5.5 to 5.0 ka BP and (ii) c. 2.7 to 1.5 ka BP. Both phases are characterized by marked increases in the planktic foraminiferal concentration, which coincides with freshwater expansions and warm subsurface water conditions within the sub-polar North Atlantic. We link the SAF changes, from c. 2.7 to 1.5 ka BP, to a strengthening of the East Greenland Current and awarming in the NAC, as identified by various studies underlying these two currents. From c. 1.5 ka BP onwards, we record a prominent subsurface cooling and continued occurrence of fresh and sea-ice loaded surface waters at the study site. This implies that the SAF migrated to the southeast of our core site during the last millennium.
    Keywords: GREENClim; Holocene; planktic foraminifera; Reykjanes Ridge; Stable isotopes; Subarctic Front
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 5
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    Tab. 1: Radiocarbon ages of samples from the Canadian archipelago (2011)
    PANGAEA
    In:  Supplement to: Mudie, Peta J; Rochon, André; Prins, Maarten Arnoud; Soenarjo, Donny; Troelstra, Simon; Levac, Elisabeth; Scott, David B; Roncaglia, Lucia; Kuijpers, Antoon (2006): Late Pleistocene-Holocene marine geology of nares strait Region: palaeoceanography from foraminifera and dinoflagellate cysts, sedimentology and stable isotopes. Polarforschung, 74(1-3), 169-183, hdl:10013/epic.29931.d001
    Details
    Publication Date: 2023-02-12
    Description: A sediment-sampling program was carried out in the Nares Strait region during the Nares 2001 Expedition to obtain cores for high-resolution palaeoceanographic studies of late Pleistocene-Holocene climate change. Long cores (〉4 m) were obtained from basins near Coburg Island, Jones Sound, John Richardson Fiord off Kane Basin, and in northeastern Hall Basin. Short cores and grab samples were taken on shelves east and west of northern Smith Sound and in Kennedy Channel. Detailed studies of sediment texture, stable isotopes, microfossils and palynomorphs were made on the longest cores from Jones Sound and Hall Basin at the southern and northern ends of the Nares Strait region.
    Keywords: Age, cultural; Age, dated; Age, dated material; Age, dated standard deviation; Age, radiocarbon; Calendar age; Coburg Island, Jones Sound, Canada; DEPTH, sediment/rock; Event label; GC; Gravity corer; LSSL2001-006PC; LSSL2001-79PC; Mass; northeastern Hall Basin, Canada; Sample, optional label/labor no; δ13C
    Type: Dataset
    Format: text/tab-separated-values, 61 data points
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  • 6
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    Stable isotope analysis from sediment core DS97-2P and GS06-144 sampled at the Reykjanes Ridge (2019)
    PANGAEA
    Details
    Publication Date: 2023-02-12
    Keywords: AGE; DS97-2P; Event label; Globigerina bulloides, δ18O; Globorotalia inflata, δ18O; GREENClim; GS06-144-04; Holocene; Isotope ratio mass spectrometry; MUC; MultiCorer; Neogloboquadrina incompta, δ18O; North Atlantic; PC; Piston corer; PL97; planktic foraminifera; Professor Logachev; Reykjanes Ridge; Stable isotopes; Subarctic Front
    Type: Dataset
    Format: text/tab-separated-values, 516 data points
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  • 7
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    Planktic foraminifera fauna assemblages and concentrations from sediment core DS97-2P and GS06-144 sampled at the Reykjanes Ridge (2019)
    PANGAEA
    Details
    Publication Date: 2023-02-12
    Keywords: AGE; Calculated; Counting; DEPTH, sediment/rock; DS97-2P; Event label; Foraminifera, planktic; Globigerina bulloides; Globigerinita glutinata; Globigerinita uvula; Globorotalia inflata; Globorotalia scitula; Globorotalia truncatulinoides; GREENClim; GS06-144-04; Holocene; MUC; MultiCorer; Neogloboquadrina incompta; Neogloboquadrina pachyderma; North Atlantic; Orbulina universa; PC; Piston corer; PL97; planktic foraminifera; Professor Logachev; Reykjanes Ridge; Stable isotopes; Subarctic Front; Turborotalita quinqueloba dextral; Turborotalita quinqueloba sinistral
    Type: Dataset
    Format: text/tab-separated-values, 2250 data points
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  • 8
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    (Figure 2) Age model analysis from sediment core AvH248260-2, Ameralik Fjord, SW Greenland
    PANGAEA
    Details
    Publication Date: 2023-05-12
    Keywords: Age model; Ameralik Fjord; AvH248260-2; DEPTH, sediment/rock; Depth, sediment revised; GC; Gravity corer
    Type: Dataset
    Format: text/tab-separated-values, 1388 data points
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  • 9
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    Age determination and clay content of sediment core GeoB5804-4
    PANGAEA
    In:  Supplement to: Arz, Helge Wolfgang; Lamy, Frank; Pätzold, Jürgen; Müller, Peter J; Prins, Maarten Arnoud (2003): Mediterranean Moisture Source for an Early-Holocene Humid Period in the Northern Red Sea. Science, 300(5616), 118-121, https://doi.org/10.1126/science.1080325
    Details
    Publication Date: 2023-06-27
    Description: Paleosalinity and terrigenous sediment input changes reconstructed on two sediment cores from the northernmost Red Sea were used to infer hydrological changes at the southern margin of the Mediterranean climate zone during the Holocene. Between approximately 9.25 and 7.25 thousand years ago, about 3 per mil reduced surface water salinities and enhanced fluvial sediment input suggest substantially higher rainfall and freshwater runoff, which thereafter decreased to modern values. The northern Red Sea humid interval is best explained by enhancement and southward extension of rainfall from Mediterranean sources, possibly involving strengthened early-Holocene Arctic Oscillation patterns and a regional monsoon-type circulation induced by increased land-sea temperature contrasts. We conclude that Afro-Asian monsoonal rains did not cross the subtropical desert zone during the early to mid-Holocene.
    Keywords: Center for Marine Environmental Sciences; GeoB5804-4; Gravity corer (Kiel type); Gulf of Aqaba; M44/3; MARUM; Meteor (1986); SL
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 10
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    (Fig. 3) Terrigeneous components of sediment core MD96-2094
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: AGE; Aridity index; Calculated from end members; CALYPSO; Calypso Corer; DEPTH, sediment/rock; End member; Grain size, LASER Particle Sizer; IMAGES; IMAGES II; International Marine Global Change Study; Marion Dufresne (1995); MD105; MD962094; MD96-2094; Median, grain size; Outer Walvis Ridge; Wind, relative intensity
    Type: Dataset
    Format: text/tab-separated-values, 2567 data points
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