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  • 81-552; 81-552A; 81-553A; 81-554; 81-555; Ageprofile Datum Description; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg81; Longitude of event; North Atlantic/PLATEAU; Sample code/label; Sample code/label 2  (1)
  • Alexandrium tamarense; Ataxiodinium choane; Bitectatodinium spongium; Bitectatodinium tepikiense; Brigantedinium spp.; Calculated; Caspidinium rugosum; Center for Marine Environmental Sciences; Chlorophyll a, interpolated; Cryodinium meridianum; Dalella chathamensis; DEPTH, sediment/rock; Dinoflagellate cyst; Dinoflagellate cyst, reworked; Dissolved oxygen, in water, interpolated; Dubridinium caperatum; Echinidinium aculeatum; Echinidinium bispiniformum; Echinidinium delicatum; Echinidinium granulatum; Echinidinium karaense; Echinidinium spp.; Echinidinium transparantum; Glaphyrocysta semitecta; Gymnodinium catenatum; Gymnodinium nolleri; Impagidinium aculeatum; Impagidinium caspienense; Impagidinium pallidum; Impagidinium paradoxum; Impagidinium patulum; Impagidinium plicatum; Impagidinium sphaericum; Impagidinium strialatum; Impagidinium variaseptum; Impagidinium velorum; Islandinium cezare; Islandinium minutum; LATITUDE; Lejeunecysta oliva; Lejeunecysta sabrina; Lingulodinium machaerophorum; LONGITUDE; MARUM; Nematosphaeropsis labyrinthus; Nitrate, in water, interpolated; Operculodinium centrocarpum; Operculodinium israelianum; Operculodinium janduchenei; Operculodinium longispinigerum; Operculodinium spp.; Pentapharsodinium dalei; Peridinium ponticum; Phosphate, in water, interpolated; Polykrikos kofoidii; Polykrikos schwarzii; Polykrikos var. arctica; Polysphaeridium zoharyi; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Protoperidiniaceae; Protoperidinium americanum; Protoperidinium monospinum; Pyxidinopsis psilata; Pyxidinopsis reticulata; Quinquecuspis concreta; Reference/source; Selenopemphix antarctica; Selenopemphix nephroides; Selenopemphix quanta; Spiniferites bentori; Spiniferites cruciformis; Spiniferites delicatus; Spiniferites elongatus; Spiniferites lazus; Spiniferites membranaceus; Spiniferites mirabilis; Spiniferites pachydermus; Spiniferites ramosus; Spiniferites spp.; SPP1158; Station label; Stelladinium robustum; Stelladinium stellatum; Tectatodinium pellitum; Temperature, annular; Temperature, autumn; Temperature, spring; Temperature, summer; Temperature, winter; Trinovantedinium applanatum; Tuberculodinium vancampoae; Uniform resource locator/link to file; Votadinium calvum; Votadinium spinosum; Xandarodinium xanthum  (1)
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  • 1
    facet.materialart.
    Unknown
    (Table 1) Microfossil events at DSDP Leg 81 Holes
    PANGAEA
    In:  Supplement to: Backman, Jan; Westberg-Smith, M J; Baldauf, Jack G; Brown, S; Bukry, David; Edwards, Lucy; Harland, Rex; Huddlestun, P (1984): Biostratigraphy of Leg 81 sediments - A high latitude record. In: Roberts, DG; Schnittker, D; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 81, 855-860, https://doi.org/10.2973/dsdp.proc.81.136.1984
    Details
    Publication Date: 2023-06-27
    Description: Leg 81 of the DSDP drilled four sites in a small area on the southwest flank of the Rockall Plateau. The biostratigraphy of the cores is based on six groups of microfossils: calcareous nannofossils, diatoms, dinoflagellates, planktonic foraminifers, radiolarians, and silicoflagellates. A good magnetostratigraphic record covering the interval from the top of the Brunhes to the Gauss/Gilbert boundary was obtained from one of the sites. Since magnetostratigraphy was not available for the older part of the section, it was not possible to estimate whether biostratigraphic indications in sediments older than 3.4 m.y. are diachronous or synchronous from low to high latitudes. The biostratigraphic resolution is generally low for any single group, but higher resolution can be attained by using all available microfossil groups. A composite list of biostratigraphic events (mainly Neogene) is presented.
    Keywords: 81-552; 81-552A; 81-553A; 81-554; 81-555; Ageprofile Datum Description; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg81; Longitude of event; North Atlantic/PLATEAU; Sample code/label; Sample code/label 2
    Type: Dataset
    Format: text/tab-separated-values, 406 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Geographic distribution of dinoflagellate cysts in surface sediments (2013)
    PANGAEA
    Details
    Publication Date: 2023-12-07
    Description: Dinoflagellate cysts are useful for reconstructing upper water conditions. For adequate reconstructions detailed information is required about the relationship between modern day environmental conditions and the geographic distribution of cysts in sediments. This Atlas summarises the modern global distribution of 71 organicwalled dinoflagellate cyst species. The synthesis is based on the integration of literature sources together with data of 2405 globally distributed surface sediment samples that have been preparedwith a comparable methodology and taxonomy. The distribution patterns of individual cyst species are being comparedwith environmental factors that are knownto influence dinoflagellate growth, gamete production, encystment, excystment and preservation of their organic-walled cysts: surface water temperature, salinity, nitrate, phosphate, chlorophyll-a concentrations and bottom water oxygen concentrations. Graphs are provided for every species depicting the relationship between seasonal and annual variations of these parameters and the relative abundance of the species. Results have been compared with previously published records; an overview of the ecological significance as well as information about the seasonal production of each individual species is presented. The relationship between the cyst distribution and variation in the aforementioned environmental parameters was analysed by performing a canonical correspondence analysis. All tested variables showed a positive relationship on the 99% confidence level. Sea-surface temperature represents the parameter corresponding to the largest amount of variance within the dataset (40%) followed by nitrate, salinity, phosphate and bottom-water oxygen concentration, which correspond to 34%, 33%, 25% and 24% of the variance, respectively. Characterisations of selected environments as well as a discussion about how these factors could have influenced the final cyst yield in sediments are included.
    Keywords: Alexandrium tamarense; Ataxiodinium choane; Bitectatodinium spongium; Bitectatodinium tepikiense; Brigantedinium spp.; Calculated; Caspidinium rugosum; Center for Marine Environmental Sciences; Chlorophyll a, interpolated; Cryodinium meridianum; Dalella chathamensis; DEPTH, sediment/rock; Dinoflagellate cyst; Dinoflagellate cyst, reworked; Dissolved oxygen, in water, interpolated; Dubridinium caperatum; Echinidinium aculeatum; Echinidinium bispiniformum; Echinidinium delicatum; Echinidinium granulatum; Echinidinium karaense; Echinidinium spp.; Echinidinium transparantum; Glaphyrocysta semitecta; Gymnodinium catenatum; Gymnodinium nolleri; Impagidinium aculeatum; Impagidinium caspienense; Impagidinium pallidum; Impagidinium paradoxum; Impagidinium patulum; Impagidinium plicatum; Impagidinium sphaericum; Impagidinium strialatum; Impagidinium variaseptum; Impagidinium velorum; Islandinium cezare; Islandinium minutum; LATITUDE; Lejeunecysta oliva; Lejeunecysta sabrina; Lingulodinium machaerophorum; LONGITUDE; MARUM; Nematosphaeropsis labyrinthus; Nitrate, in water, interpolated; Operculodinium centrocarpum; Operculodinium israelianum; Operculodinium janduchenei; Operculodinium longispinigerum; Operculodinium spp.; Pentapharsodinium dalei; Peridinium ponticum; Phosphate, in water, interpolated; Polykrikos kofoidii; Polykrikos schwarzii; Polykrikos var. arctica; Polysphaeridium zoharyi; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Protoperidiniaceae; Protoperidinium americanum; Protoperidinium monospinum; Pyxidinopsis psilata; Pyxidinopsis reticulata; Quinquecuspis concreta; Reference/source; Selenopemphix antarctica; Selenopemphix nephroides; Selenopemphix quanta; Spiniferites bentori; Spiniferites cruciformis; Spiniferites delicatus; Spiniferites elongatus; Spiniferites lazus; Spiniferites membranaceus; Spiniferites mirabilis; Spiniferites pachydermus; Spiniferites ramosus; Spiniferites spp.; SPP1158; Station label; Stelladinium robustum; Stelladinium stellatum; Tectatodinium pellitum; Temperature, annular; Temperature, autumn; Temperature, spring; Temperature, summer; Temperature, winter; Trinovantedinium applanatum; Tuberculodinium vancampoae; Uniform resource locator/link to file; Votadinium calvum; Votadinium spinosum; Xandarodinium xanthum
    Type: Dataset
    Format: text/tab-separated-values, 230152 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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