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  • 207-1259; Branched and isoprenoid tetraether index; Calcium carbonate; Carbon, organic, total; Carbon, organic, total, standard deviation; COMPCORE; Composite Core; Depth, composite; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Isotope ratio mass spectrometry; Isotopic event; Joides Resolution; Leg207; Ocean Drilling Program; ODP; Positive-ion thermal-ionization mass spectrometry; Sample, optional label/labor no; Sample code/label; Sea surface temperature, annual mean; Sea surface temperature, standard deviation; South Atlantic Ocean; Tetraether index of 86 carbon atoms; Time zone; δ13C; δ13C, standard deviation  (1)
  • Ancient haptophytes  (1)
  • Arctic Ocean; Area/locality; AWIPEV; AWIPEV_based; Barents Sea; Carbon, organic, total; Carbon, organic, total, standard deviation; Carbon, total; Carbon, total, standard deviation; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Event label; LA07/9; Lance; Latitude of event; Lilliehookbreen-1; Lilliehookbreen-2; Lithology/composition/facies; Longitude of event; Mitra-Peninsula-1; Mitra-Peninsula-2; Mitra-Peninsula-3; Mitra-Peninsula-4; Mitra-Peninsula-5; MUC; MULT; MultiCorer; Multiple investigations; NIOZ_UU; NIOZ Royal Netherlands Institute for Sea Research, and Utrecht University; Nitrogen, total; Nitrogen, total, standard deviation; NP-07-13-08; NP-07-13-09; NP-07-13-10; NP-07-13-11; NP-07-13-13; NP-07-13-14; NP-07-13-15; NP-07-13-16; NP-07-13-21; NP-07-13-23; NP-07-13-24; NP-07-13-25; NP-07-13-26; NP-07-13-30; NP-07-13-31; NP-07-13-32; NP-07-13-33; NP-07-13-34; NP-07-13-35; NP-07-13-36; NP-07-13-40; NP-07-13-41; NP-07-13-42; NP-07-13-44; NP-07-13-46; NP-07-13-47; NP-07-13-48; NP-07-13-49; NP-07-13-50; NP-07-13-51; NP-07-13-52; NP-07-13-53; NP-07-13-55; NP-07-13-60; NP-07-13-61; NP-07-13-64; Ny-Alesund-1; Ny-Alesund-2; Ny-Alesund-3; Ny-Alesund-4; Spitsbergen; δ13C, organic carbon; δ13C, organic carbon, standard deviation  (1)
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  • 1
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    Unknown
    Geochemistry of Arctic marine sediments
    PANGAEA
    In:  Supplement to: Kim, Jung-Hyun; Peterse, Francien; Willmott, Verónica; Klitgaard-Kristensen, Dorthe; Baas, Marianne; Schouten, Stefan; Sinninghe Damsté, Jaap S (2011): Large ancient organic matter contributions to Arctic marine sediments (Svalbard). Limnology and Oceanography, 56(4), 1463-1474, https://doi.org/10.4319/lo.2011.56.4.1463
    Details
    Publication Date: 2023-05-12
    Description: Soils, fine-grained ice-rafted detritus (IRD), coals, and marine surface sediments in the Arctic realm (Svalbard) were collected in 2007 and 2008 to characterize organic matter (OM) sources in Arctic marine sediments. Bulk geochemical (C:N ratio and stable carbon isotopic composition) parameters suggest a predominant marine contribution to sedimentary OM. The branched and isoprenoid tetraether index (a proxy of soil OM input) indicates that soil OM contribution to the marine sediments is minor. However, the presence of retene (used as an indicator for coal-derived OM), the low carbon preference index and the average chain length of n-alkanes, and the depleted bulk radiocarbon content (D14C value) suggest that ancient OM of both coal-derived and mature IRD-derived OM is being buried in the Kongsfjord-Krossfjord system of Svalbard in the high Arctic. The relatively low retene concentrations in the marine surface sediments other than those in close vicinity of Ny Ålesund, previously a coal-mining town, indicated that input of IRD-derived OM was predominantly responsible for the generally low D14C value. We applied three-end-member models based on D14C and retene and n-alkane concentration data to disentangle relative coal-derived, IRD-derived, and marine OM proportions to sedimentary OM. Sediments were comprised on average 2% ± 4% of coal-derived OM, 37% ± 17% of IRD-derived OM, and 61% ± 18% of marine OM with higher IRD-derived OM deposit in the Kongsvegen glacier front. Our results highlight the important role of ancient OM on carbon dynamics in Arctic environments, in particular for benthic food webs.
    Keywords: Arctic Ocean; Area/locality; AWIPEV; AWIPEV_based; Barents Sea; Carbon, organic, total; Carbon, organic, total, standard deviation; Carbon, total; Carbon, total, standard deviation; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Event label; LA07/9; Lance; Latitude of event; Lilliehookbreen-1; Lilliehookbreen-2; Lithology/composition/facies; Longitude of event; Mitra-Peninsula-1; Mitra-Peninsula-2; Mitra-Peninsula-3; Mitra-Peninsula-4; Mitra-Peninsula-5; MUC; MULT; MultiCorer; Multiple investigations; NIOZ_UU; NIOZ Royal Netherlands Institute for Sea Research, and Utrecht University; Nitrogen, total; Nitrogen, total, standard deviation; NP-07-13-08; NP-07-13-09; NP-07-13-10; NP-07-13-11; NP-07-13-13; NP-07-13-14; NP-07-13-15; NP-07-13-16; NP-07-13-21; NP-07-13-23; NP-07-13-24; NP-07-13-25; NP-07-13-26; NP-07-13-30; NP-07-13-31; NP-07-13-32; NP-07-13-33; NP-07-13-34; NP-07-13-35; NP-07-13-36; NP-07-13-40; NP-07-13-41; NP-07-13-42; NP-07-13-44; NP-07-13-46; NP-07-13-47; NP-07-13-48; NP-07-13-49; NP-07-13-50; NP-07-13-51; NP-07-13-52; NP-07-13-53; NP-07-13-55; NP-07-13-60; NP-07-13-61; NP-07-13-64; Ny-Alesund-1; Ny-Alesund-2; Ny-Alesund-3; Ny-Alesund-4; Spitsbergen; δ13C, organic carbon; δ13C, organic carbon, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 488 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    (Table DR2) Geochemical data, paleo-sea surface temperatures reconstructed by TEX86 paleothermometry and time intervals differentiated based thereon at ODP Site 207-1259 (2007)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 207-1259; Branched and isoprenoid tetraether index; Calcium carbonate; Carbon, organic, total; Carbon, organic, total, standard deviation; COMPCORE; Composite Core; Depth, composite; DEPTH, sediment/rock; DSDP/ODP/IODP sample designation; Isotope ratio mass spectrometry; Isotopic event; Joides Resolution; Leg207; Ocean Drilling Program; ODP; Positive-ion thermal-ionization mass spectrometry; Sample, optional label/labor no; Sample code/label; Sea surface temperature, annual mean; Sea surface temperature, standard deviation; South Atlantic Ocean; Tetraether index of 86 carbon atoms; Time zone; δ13C; δ13C, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 410 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Unknown
    Ancient DNA derived from alkenone-biosynthesizing haptophytes and other algae in Holocene sediments from the Black Sea (2010)
    American Geophysical Union
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © American Geophysical Union, 2006. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Paleoceanography 21 (2006): PA1005, doi:10.1029/2005PA001188.
    Description: Holocene sea surface temperatures (SST) of the Black Sea have been reconstructed using sedimentary C37 unsaturated alkenones assumed to be derived from the coccolithophorid haptophyte Emiliania huxleyi, whose fossil coccoliths are an important constituent of the unit I sediments. However, alkenones can also be biosynthesized by haptophyte species that do not produce microscopic recognizable coccoliths. A species-specific identification of haptophytes is important in such U 37 K′-based past SST reconstructions since different species have different alkenone-SST calibrations. We showed that 18S rDNA of E. huxleyi made up only a very small percentage (less than 0.8%) of the total eukaryotic 18S rDNA within the up to 3600-year-old fossil record obtained from the depocenter (〉2000 m) of the Black Sea. The predominant fossil 18S rDNA was derived from dinoflagellates (Gymnodinium spp.), which are predominant members of the summer phytoplankton bloom in the modern Black Sea. Using a polymerase chain reaction/denaturing gradient gel electrophoresis method selective for haptophytes, we recovered substantial numbers of a preserved 458-base-pair (bp)-long 18S rDNA fragment of E. huxleyi from the Holocene Black Sea sediments. Additional fossil haptophyte sequences were not detected, indicating that the E. huxleyi alkenone-SST calibration can be applied for at least the last ∼3600 years. The ancient E. huxleyi DNA was well protected against degradation since the DNA/alkenone ratio did not significantly decrease throughout the whole sediment core and 20% of ∼2700-year-old fossil E. huxleyi DNA was still up to 23,000 base pairs long. We showed that fossil DNA offers great potential to study the Holocene paleoecology and paleoenvironment of anoxic deep-sea settings in unprecedented detail.
    Description: This work was supported by a grant from the Netherlands Organization for Scientific Research (NWO) (Open Competition Program 813.13.001 to M.J.L.C.) and NSF grant OCE0117824 to S.G.W., which we greatly appreciate.
    Keywords: Fossil DNA ; DGGE ; Paleoecology ; Holocene ; Black Sea ; Ancient haptophytes
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
    Location Call Number Limitation Availability
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    PAPER (OA)
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