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  • 175-1078C; Benguela Current, South Atlantic Ocean; DRILL; Drilling/drill rig; Joides Resolution; Leg175; Ocean Drilling Program; ODP  (3)
  • 108-658; 108-658A; 108-658B; Canarias Sea; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg108; Ocean Drilling Program; ODP  (1)
  • 108-658; Abies; Acalypha; Acanthaceae; Acer; AGE; Alchornea; Alnus; Amaranthaceae/Chenopodiaceae; Antidesma-type; Apiaceae; Apocynaceae; Arecaceae; Artemisia; Asphodelus; Balanites; Betula; Bignoniaceae; Blepharis; Bombax; Boraginaceae; Boscia; Boswellia; Brassicaceae; Bridelia; Calligonum; Campanulaceae; Canarias Sea; Capparidaceae; Caryophyllaceae; Cassia-type; Cedrus; Celastraceae; Celtis; Chrozophora; Cistaceae; Combretaceae; Commiphora; COMPCORE; Compositae Liguliflorae; Compositae Tubuliflorae; Compositae Vernonieae; Composite Core; Convolvulus (Africa); Corylus; Counting, palynology; Croton; Cucurbitaceae; Cyperaceae; Depth, composite; Diospyros; Empetrum; Ephedra; Ericaceae; Erodium; Euphorbia; Euphorbiaceae undifferentiated; Fagus; Fern spores; Fern spores indeterminata; Filipendula; Gaertnera; Grewia; Gymnocarpos; Gypsophila; Heliotropium; Hygrophila-type; Hymenocardia; Hypoestes type; Indeterminata; Indigofera-type; Iridaceae; Isoberlinia-type; Isoetes; Jatropha; Joides Resolution; Justicia-type; Lamiaceae; Lannea; Leea; Leg108; Leguminosae; Liliaceae; Macaranga; Malvaceae; Marker, added; Marker, found; Mimosaceae; Mitracarpus; Moltkia; Myrica; Neurada; Nitraria; Nyctaginaceae; Ocean Drilling Program; ODP; Olea; Oleaceae; Paronychia; Persicaria senegalensis-type; Phillyrea; Phyllanthus; Picea; Pinus; Plantago; Plumbaginaceae undifferentiated; Poaceae; Polycarpaea-type; Polycarpon; Polygala; Psydrax-type subcordata; Pteris; Pterocarpus; Quercus; Ranunculaceae; Rhizophora; Rhus; Rosaceae; Rubiaceae undifferentiated; Rumex; Rutaceae; Sagina; Salvadora persica; Sample code/label; Sapium-type; Sapotaceae/Meliaceae; Spermacoce; Sterculiaceae; Tamarix; Thalictrum; Thymelaeaceae; Tilia; Tribulus; Typha; Uapaca; Volume; Zanthoxylum; Ziziphus; Zygophyllum  (1)
Document type
Keywords
Publisher
Years
  • 1
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    Pollen and spore counts for the upper 10 meter of ODP Site 108-658, Brunhes Chron (2019)
    PANGAEA
    Details
    Publication Date: 2024-03-06
    Keywords: 108-658; Abies; Acalypha; Acanthaceae; Acer; AGE; Alchornea; Alnus; Amaranthaceae/Chenopodiaceae; Antidesma-type; Apiaceae; Apocynaceae; Arecaceae; Artemisia; Asphodelus; Balanites; Betula; Bignoniaceae; Blepharis; Bombax; Boraginaceae; Boscia; Boswellia; Brassicaceae; Bridelia; Calligonum; Campanulaceae; Canarias Sea; Capparidaceae; Caryophyllaceae; Cassia-type; Cedrus; Celastraceae; Celtis; Chrozophora; Cistaceae; Combretaceae; Commiphora; COMPCORE; Compositae Liguliflorae; Compositae Tubuliflorae; Compositae Vernonieae; Composite Core; Convolvulus (Africa); Corylus; Counting, palynology; Croton; Cucurbitaceae; Cyperaceae; Depth, composite; Diospyros; Empetrum; Ephedra; Ericaceae; Erodium; Euphorbia; Euphorbiaceae undifferentiated; Fagus; Fern spores; Fern spores indeterminata; Filipendula; Gaertnera; Grewia; Gymnocarpos; Gypsophila; Heliotropium; Hygrophila-type; Hymenocardia; Hypoestes type; Indeterminata; Indigofera-type; Iridaceae; Isoberlinia-type; Isoetes; Jatropha; Joides Resolution; Justicia-type; Lamiaceae; Lannea; Leea; Leg108; Leguminosae; Liliaceae; Macaranga; Malvaceae; Marker, added; Marker, found; Mimosaceae; Mitracarpus; Moltkia; Myrica; Neurada; Nitraria; Nyctaginaceae; Ocean Drilling Program; ODP; Olea; Oleaceae; Paronychia; Persicaria senegalensis-type; Phillyrea; Phyllanthus; Picea; Pinus; Plantago; Plumbaginaceae undifferentiated; Poaceae; Polycarpaea-type; Polycarpon; Polygala; Psydrax-type subcordata; Pteris; Pterocarpus; Quercus; Ranunculaceae; Rhizophora; Rhus; Rosaceae; Rubiaceae undifferentiated; Rumex; Rutaceae; Sagina; Salvadora persica; Sample code/label; Sapium-type; Sapotaceae/Meliaceae; Spermacoce; Sterculiaceae; Tamarix; Thalictrum; Thymelaeaceae; Tilia; Tribulus; Typha; Uapaca; Volume; Zanthoxylum; Ziziphus; Zygophyllum
    Type: Dataset
    Format: text/tab-separated-values, 17415 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Palynology of ODP Site 108-658 (1989)
    PANGAEA
    In:  Supplement to: Dupont, Lydie M; Beug, Hans-Jürgen; Stalling, H; Tiedemann, Ralf (1989): First palynological results from ODP Site 658 at 21°N west off Africa: pollen as climate indicators. In: Ruddiman, W; Sarnthein, M; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 108, 93-111, https://doi.org/10.2973/odp.proc.sr.108.174.1989
    Details
    Publication Date: 2024-01-09
    Description: Ocean Drilling Program Site 658 at 21°N off northwest Africa has a high sedimentation rate and a high concentration of pollen grains and is thus very suitable for detailed pollen analysis. The time scale for the upper 100 m (the last 670 k.y.) of Site 658 is based on biostratigraphic data and isotope stratigraphy. The pollen record has been divided into 34 zones. These are classified into 7 zone types covering a range from very arid to rather humid conditions. The sequence shows a long-term climatic decline: strong glacial stages were found only after 480 k.y. and strong interglacial stages only before 280 k.y. The Site 658 record correlates well with a terrestrial sequence from northern Greece, although both records differ in their response to global climatic change. Spectral analysis shows a 100- and a 42-k.y. period in the curves of pollen brought in by the northwest trade winds and only a 42-k.y. period in the curves of pollen mostly transported by the African Easterly Jet. A 31-k.y. period is found in the curves for Ephedra and Chenopodiaceae-Amaranthaceae. In addition, Ephedra shows a 54-k.y. period.
    Keywords: 108-658; 108-658A; 108-658B; Canarias Sea; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg108; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 5 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    AMS radiocarbon dates and pollen analysis of ODP Hole 175-1078C (2008)
    PANGAEA
    In:  Supplement to: Dupont, Lydie M; Behling, Hermann; Kim, Jung-Hyun (2008): Thirty thousand years of vegetation development and climate change in Angola (Ocean Drilling Program Site 1078). Climate of the Past, 4, 107-124, https://doi.org/10.5194/cp-4-107-2008
    Details
    Publication Date: 2024-01-09
    Description: ODP Site 1078 situated under the coast of Angola provides the first record of the vegetation history for Angola. The upper 11 m of the core covers the past 30 thousand years, which has been analysed palynologically in decadal to centennial resolution. Alkenone sea surface temperature estimates were analysed in centennial resolution. We studied sea surface temperatures and vegetation development during full glacial, deglacial, and interglacial conditions. During the glacial the vegetation in Angola was very open consisting of grass and heath lands, deserts and semi-deserts, which suggests a cool and dry climate. A change to warmer and more humid conditions is indicated by forest expansion starting in step with the earliest temperature rise in Antarctica, 22 thousand years ago. We infer that around the period of Heinrich Event 1, a northward excursion of the Angola Benguela Front and the Congo Air Boundary resulted in cool sea surface temperatures but rain forest remained present in the northern lowlands of Angola. Rain forest and dry forest area increase 15 thousand years ago. During the Holocene, dry forests and Miombo woodlands expanded. Also in Angola globally recognised climate changes at 8 thousand and 4 thousand years ago had an impact on the vegetation. During the past 2 thousand years, savannah vegetation became dominant.
    Keywords: 175-1078C; Benguela Current, South Atlantic Ocean; DRILL; Drilling/drill rig; Joides Resolution; Leg175; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Planktonic foraminifera Mg/Ca paleotemperatures and oxygen isotopes of ODP Hole 175-1078C (2011)
    PANGAEA
    In:  Supplement to: Hessler, Ines; Steinke, Stephan; Groeneveld, Jeroen; Dupont, Lydie M; Wefer, Gerold (2011): Impact of abrupt climate change in the tropical southeast Atlantic during Marine Isotope Stage (MIS) 3. Paleoceanography, 26, PA4209, https://doi.org/10.1029/2011PA002118
    Details
    Publication Date: 2024-01-09
    Description: High resolution planktonic foraminifera Mg/Ca paleotemperatures and oxygen isotopes of seawater of Ocean Drilling Program (ODP) Site 1078 (off Angola) have been reconstructed and reveal insights into the seasonal thermal evolution of the Angola Current (AC), the Angola-Benguela Front (ABF), and the Benguela Current (BC) during the last glacial (50-23.5 ka BP). Special emphasis is put on time intervals possibly associated with the North Atlantic Heinrich Stadials (HS), which are thought to lead to an accumulation of heat in the South Atlantic due to a reduction of the Atlantic Meridional Overturning Circulation (AMOC). Within dating uncertainties, Globigerinoides ruber (pink) Mg/Ca-based sea surface temperature (SST) estimates that represent southern hemisphere summer surface conditions show several warming episodes that coincide with North Atlantic HS, thus supporting the concept of the bipolar thermal seesaw. In contrast, the Mg/Ca-based temperatures of Globigerina bulloides, representing the SST of the ABF/BC system during southern hemisphere winter, show no obvious response to the North Atlantic HS in the study area. We suggest that surface water cooling during the winter season is due to enhanced upwelling or upwelling of colder water masses which has most likely mitigated a warming of the ABF/BC system during HS. We further speculate that the seasonal asymmetry in our SST record results from seasonal differences in the dominance of atmospheric and oceanic teleconnections during periods of northern high latitude cooling.
    Keywords: 175-1078C; Benguela Current, South Atlantic Ocean; DRILL; Drilling/drill rig; Joides Resolution; Leg175; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    High-resolution pollen record of ODP Hole 175-1078C (2012)
    PANGAEA
    In:  Supplement to: Hessler, Ines; Dupont, Lydie M; Handiani, Dian Noor; Paul, André; Merkel, Ute; Wefer, Gerold (2012): Masked millennial-scale climate variations in South West Africa during the last glaciation. Climate of the Past, 8(2), 841-853, https://doi.org/10.5194/cp-8-841-2012
    Details
    Publication Date: 2024-01-09
    Description: To address the connection between tropical African vegetation development and high-latitude climate change we present a high-resolution pollen record from ODP Site 1078 (off Angola) covering the period 50-10 ka BP. Although several tropical African vegetation and climate reconstructions indicate an impact of Heinrich Stadials (HSs) in Southern Hemisphere Africa, our vegetation record shows no response. Model simulations conducted with an Earth System Model of Intermediate Complexity including a dynamical vegetation component provide one possible explanation. Because both precipitation and evaporation increased during HSs and their effects nearly cancelled each other, there was a negligible change in moisture supply. Consequently, the resulting climatic response to HSs might have been too weak to noticeably affect the vegetation composition in the study area. Our results also show that the response to HSs in southern tropical Africa neither equals nor mirrors the response to abrupt climate change in northern Africa.
    Keywords: 175-1078C; Benguela Current, South Atlantic Ocean; DRILL; Drilling/drill rig; Joides Resolution; Leg175; Ocean Drilling Program; ODP
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
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