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  • 146-893; 202-1233; COMPCORE; Composite Core; Joides Resolution; Leg146; Leg202; North Pacific Ocean; Ocean Drilling Program; ODP; South-East Pacific  (1)
  • 146-893A; AGE; Alexandrium tamarense, flux; Brigantedinium sp., flux; Counting, dinoflagellate cysts; DEPTH, sediment/rock; Dinoflagellate autotrophic, flux; Dinoflagellates, heterotrophic, flux; Dinoflagellate total, flux; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Dubridinium sp., flux; Echinidinium aculeatum, flux; Echinidinium sp., flux; Foraminiferal organic linings, flux; Halodinium sp., flux; Heterosigma akashiwo, flux; Hexasterias problematica, flux; Impagidinium aculeatum, flux; Impagidinium pallidum, flux; Impagidinium paradoxum, flux; Impagidinium sp., flux; Islandinium brevispinosum, flux; Islandinium cezare, flux; Islandinium minutum, flux; Joides Resolution; Leg146; Lejeunecysta oliva, flux; Lingulodinium machaerophorum, flux; Mandibles, flux; Nematosphaeropsis labyrinthus, flux; North Pacific Ocean; Ocean Drilling Program; ODP; Operculodinium centrocarpum, flux; Pediastrum sp., flux; Pentapharsodinium dalei, flux; Pollen, flux; pollen analytical standard techniques (Faegri & Iversen, 1989, Textbook Pollen); Polykrikos kofoidii, flux; Polykrikos schwarzii, flux; Protoperidinium americanum, flux; Pyxidinopsis reticulata, flux; Quinquecuspis concreta, flux; Radiosperma corbiferum, flux; Sample code/label; Selenopemphix nephroides, flux; Selenopemphix quanta, flux; Spiniferites bulloideus, flux; Spiniferites membranaceus, flux; Spiniferites mirabilis, flux; Spiniferites ramosus, flux; Spiniferites sp., flux; Tectatodinium pellitum, flux; Trinovantedinium applanatum, flux; Trinovantedinium variabile, flux; Undetermined taxa, flux; Votadinium calvum, flux; Votadinium spinosum, flux  (1)
Document type
Keywords
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  • 1
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    Unknown
    Dinoflagellate cyst accumulation rates of ODP Hole 146-893A from Santa Barbara Basin (2006)
    PANGAEA
    In:  Supplement to: Pospelova, Vera; Pedersen, Thomas F; de Vernal, Anne (2006): Dinoflagellate cysts as indicators of climatic and oceanographic changes during the past 40 kyr in the Santa Barbara Basin, southern California. Paleoceanography, 21(2), PA2010, https://doi.org/10.1029/2005PA001251
    Details
    Publication Date: 2024-01-09
    Description: The dinoflagellate cyst record from Ocean Drilling Program Hole 893A, Santa Barbara Basin, southern California, is examined at millennial-scale resolution for the past 40 kyr. Changes in cyst abundance, composition of cyst assemblages, and their diversity reflect major shifts in climate and ocean circulation in the region over this time interval. Throughout the sequence, dinoflagellate cyst assemblages are dominated by heterotrophic dinoflagellates. Brigantedinium spp. and other upwelling-related taxa such as Echinidinium and Protoperidinium americanum are abundant, indicating the continued influence of coastal upwelling on the basin during the late Quaternary. A significant increase in cyst accumulation rates is seen during the Holocene and, to a lesser extent, during shorter warming events such as Bolling/Allerod and Dansgaard-Oeschger interstadials, implying enhanced marine productivity during these periods. Cyst diversity is high during the Holocene. An increase in abundance of cysts produced by autotrophic dinoflagellates in the late Holocene suggests enhanced input of warm, nutrient-rich waters. In contrast, cyst assemblages from the Last Glacial Maximum exhibit a relatively low diversity and an increase in the cysts of heterotrophic dinoflagellates, in particular Selenopemphix nephroides. The presence of this taxon in association with Brigantedinium spp. implies substantial cooling of surface waters in the Santa Barbara Basin at that time.
    Keywords: 146-893A; AGE; Alexandrium tamarense, flux; Brigantedinium sp., flux; Counting, dinoflagellate cysts; DEPTH, sediment/rock; Dinoflagellate autotrophic, flux; Dinoflagellates, heterotrophic, flux; Dinoflagellate total, flux; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Dubridinium sp., flux; Echinidinium aculeatum, flux; Echinidinium sp., flux; Foraminiferal organic linings, flux; Halodinium sp., flux; Heterosigma akashiwo, flux; Hexasterias problematica, flux; Impagidinium aculeatum, flux; Impagidinium pallidum, flux; Impagidinium paradoxum, flux; Impagidinium sp., flux; Islandinium brevispinosum, flux; Islandinium cezare, flux; Islandinium minutum, flux; Joides Resolution; Leg146; Lejeunecysta oliva, flux; Lingulodinium machaerophorum, flux; Mandibles, flux; Nematosphaeropsis labyrinthus, flux; North Pacific Ocean; Ocean Drilling Program; ODP; Operculodinium centrocarpum, flux; Pediastrum sp., flux; Pentapharsodinium dalei, flux; Pollen, flux; pollen analytical standard techniques (Faegri & Iversen, 1989, Textbook Pollen); Polykrikos kofoidii, flux; Polykrikos schwarzii, flux; Protoperidinium americanum, flux; Pyxidinopsis reticulata, flux; Quinquecuspis concreta, flux; Radiosperma corbiferum, flux; Sample code/label; Selenopemphix nephroides, flux; Selenopemphix quanta, flux; Spiniferites bulloideus, flux; Spiniferites membranaceus, flux; Spiniferites mirabilis, flux; Spiniferites ramosus, flux; Spiniferites sp., flux; Tectatodinium pellitum, flux; Trinovantedinium applanatum, flux; Trinovantedinium variabile, flux; Undetermined taxa, flux; Votadinium calvum, flux; Votadinium spinosum, flux
    Type: Dataset
    Format: text/tab-separated-values, 2302 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Occurrence of Selenopemphix undulata sp. nov in late Quaternary sediments of the Pacific Ocean (2011)
    PANGAEA
    In:  Supplement to: Verleye, Thomas; Pospelova, Vera; Mertens, Kenneth Neil; Louwye, Stephen (2011): The geographical distribution and (palaeo)ecology of Selenopemphix undulata sp. nov., a new late Quaternary dinoflagellate cyst from the Pacific Ocean. Marine Micropaleontology, 78(3-4), 65-83, https://doi.org/10.1016/j.marmicro.2010.10.001
    Details
    Publication Date: 2024-01-09
    Description: Detailed palynological studies in the northeast (NE) Pacific, Strait of Georgia (BC, Canada), southeast (SE) Pacific and northwest Pacific (Dongdo Bay, South Korea) resulted in the recognition of the new dinoflagellate cyst species Selenopemphix undulata sp. nov. This species is restricted to cool temperate to sub-polar climate zones, where it is found in highest relative abundances in highly productive non- to reduced upwelling regions with an annual mean sea-surface temperature (aSST) below 16 °C and an annual mean sea-surface salinity (aSSS) between 20 and 35 psu. Those observations are in agreement with the late Quaternary fossil records from Santa Barbara Basin (ODP 893; 34°N) and offshore Chile (ODP 1233; 41°S), where this species thrived during the last glacial. This period was characterised by high nutrient availability and the absence of species favouring upwelling conditions. The indirect dependence of S. undulata sp. nov. abundances on nutrient availability during reduced or non-upwelling periods is expressed by the synchronous fluctuations with diatom abundances, since the distribution and growth rates of the latter are directly related with the availability of macronutrients in the surface waters.
    Keywords: 146-893; 202-1233; COMPCORE; Composite Core; Joides Resolution; Leg146; Leg202; North Pacific Ocean; Ocean Drilling Program; ODP; South-East Pacific
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
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