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  • 1
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Trull, Tom W; Bray, S; Manganini, Steven J; Honjo, Susumu; Francois, Roger (2001): Moored sediment trap measurements of carbon export in the Subantarctic and Polar Frontal Zones of the Southern Ocean, south of Australia. Journal of Geophysical Research: Oceans, 106(C12), 31489-31510, https://doi.org/10.1029/2000JC000308
    Publication Date: 2023-05-12
    Description: Sediment trap moorings were deployed from September 21, 1997 through February 21, 1998 at three locations south of Australia along 140°E: at -47°S in the central Subantarctic Zone (SAZ) with traps at 1060, 2050, and 3850 m depth, at -51°S in the Subantarctic Front with one trap at 3080 m, and at -54°S in the Polar Frontal Zone (PFZ) with traps at 830 and 1580 m. Particle fluxes were high at all the sites (18-32 g/m**2/yr total mass and 0.5-1.4 g organic carbon/m**2/yr at -1000 m, assuming minimal flux outside the sampled summer period). These values are similar to other Southern Ocean results and to the median estimated for the global ocean by Lampitt and Antia [1997], and emphasize that the Southern Ocean exports considerable carbon to the deep sea despite its 'high-nutrient, low chlorophyll' characteristics. The SAZ site was dominated by carbonate (〉50% of total mass) and the PFZ site by biogenic silica (〉50% of total mass). Both sites exhibited high export in spring and late summer, with an intervening low flux period in December. For the 153 day collection period, particulate organic carbon export was somewhat higher in all the traps in the SAZ (range 0.57-0.84 gC/m**2) than in the PFZ (range 0.31-0.53), with an intermediate value observed at the SAF (0.60). The fraction of surface organic carbon export (estimated from seasonal nutrient depletion, Lourey and Trull [2001]) reaching 1000 m was indistinguishable in the SAZ and PFZ, despite different algal communities.
    Keywords: Australian JGOFS Projects; OZGOFS
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 2
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Kloster, Michael; Rigual-Hernandez, Andrés S; Armand, Leanne K; Kauer, Gerhard; Trull, Tom W; Beszteri, Bánk (2019): Temporal changes in size distributions of the Southern Ocean diatom Fragilariopsis kerguelensis through high-throughput microscopy of sediment trap samples. Diatom Research, https://doi.org/10.1080/0269249X.2019.1626770
    Publication Date: 2023-01-30
    Description: Morphometric measurements of Fragilariopsis kerguelensis valves from a two-year time series covering the period from November 2002 to October 2004 collected by a sediment trap at 800m below the ocean surface which was moored near 54° S 140° E in ca. 2300 m water depth, close to the top of the Australia-Antarctica mid-ocean ridge.
    Keywords: Australia-Antarctica_mid-ocean_ridge; Morphometry; SHERPA; Trap; TRAP; valve size distribution
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 3
    Publication Date: 2023-01-30
    Keywords: Australia-Antarctica_mid-ocean_ridge; Morphometry; SHERPA; Trap; TRAP; valve size distribution
    Type: Dataset
    Format: application/zip, 15.3 MBytes
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  • 4
    Publication Date: 2023-01-30
    Keywords: Australia-Antarctica_mid-ocean_ridge; DEPTH, water; File format; File name; File size; Morphometry; SHERPA; Trap; TRAP; Uniform resource locator/link to file; valve size distribution
    Type: Dataset
    Format: text/tab-separated-values, 172 data points
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  • 5
    Publication Date: 2023-05-12
    Keywords: 09AR97/98; Aluminium, flux; AU9701_SAF51; Aurora Australis; Australian JGOFS Projects; Biogenic silica, flux; Calculated; Calculated, see reference(s); Carbon, inorganic, particulate, flux; Carbon, inorganic, particulate, flux per day; Carbon, organic, particulate, flux; DATE/TIME; DEPTH, water; Duration, number of days; Element analyser CHN; Lithogenic, flux; Nitrogen, organic, particulate, flux; Opal, flux; OZGOFS; Total, flux per year; Total mass, flux per day; Trap, sediment; TRAPS
    Type: Dataset
    Format: text/tab-separated-values, 139 data points
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  • 6
    Publication Date: 2023-05-12
    Keywords: 09AR97/98; Aluminium, flux; AU9701_SAZ47; Aurora Australis; Australian JGOFS Projects; Biogenic silica, flux; Calculated; Calculated, see reference(s); Carbon, inorganic, particulate, flux; Carbon, inorganic, particulate, flux per day; Carbon, organic, particulate, flux; DATE/TIME; DEPTH, water; Duration, number of days; Element analyser CHN; Lithogenic, flux; Nitrogen, organic, particulate, flux; Opal, flux; OZGOFS; Total, flux per year; Total mass, flux per day; Trap, sediment; TRAPS
    Type: Dataset
    Format: text/tab-separated-values, 472 data points
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  • 7
    Publication Date: 2023-05-12
    Keywords: 09AR97/98; Aluminium, flux; AU9701_PFZ54; Aurora Australis; Australian JGOFS Projects; Biogenic silica, flux; Calculated; Calculated, see reference(s); Carbon, inorganic, particulate, flux; Carbon, inorganic, particulate, flux per day; Carbon, organic, particulate, flux; DATE/TIME; DEPTH, water; Duration, number of days; Element analyser CHN; Lithogenic, flux; Nitrogen, organic, particulate, flux; Opal, flux; OZGOFS; Total, flux per year; Total mass, flux per day; Trap, sediment; TRAPS
    Type: Dataset
    Format: text/tab-separated-values, 306 data points
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  • 8
    facet.materialart.
    Unknown
    PANGAEA
    In:  Supplement to: Meyers, Philip A; Trull, Tom W; Kawka, Orest E (1984): Organic geochemical comparison of Cretaceous green and black claystones from Hole 530A in the Angola Basin. In: Hay, WW; Sibuet, J-C; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 75, 1009-1018, https://doi.org/10.2973/dsdp.proc.75.132.1984
    Publication Date: 2023-06-27
    Description: Three pairs of Upper Cretaceous black shales and adjacent green claystones from Hole 530A were analyzed to compare types and amounts of organic matter and lipids and to seek information about their environments of deposition. The organic-carbon-rich black shales have C/N ratios nearly seven times those of the organic-carbon-lean green claystones. The lipid content of organic matter in the black shales is about ten times less than in adjacent green layers. Organic matter in both types of rocks is thermally immature, and distributions of alkanoic acids, alkanols, sterols, and alkanes contain large amounts of terrigenous components. Pristane/phytane ratios of less than one suggest that younger Turonian sediments were laid down under anoxic conditions, but ratios greater than one suggest that older Turonian Cenomanian deposits accumulated in a more oxic environment. Closely bedded green and black layers have very similar types of lipid distributions and differ primarily in concentrations, although black shales contain somewhat larger amounts of terrigenous lipid components. Geochemical and stratigraphic evidence suggests much of the organic matter in these samples originated on the African continental margin and was transported to the Angola Basin by turbidity flow. Rapid reburial of organic-carbon-rich sediments led to formation of the black shales.
    Keywords: 75-530A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg75; South Atlantic/RIDGE
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 9
    Publication Date: 2023-06-27
    Keywords: 75-530A; Calcium carbonate; Calculated; Carbon, organic, total; Carbon/Nitrogen ratio; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analyzer CHN (Hewlett-Packard 185-B); Glomar Challenger; Leg75; Lithology/composition/facies; Sample code/label; South Atlantic/RIDGE; Stage
    Type: Dataset
    Format: text/tab-separated-values, 36 data points
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  • 10
    Publication Date: 2023-06-27
    Keywords: -; 75-530A; Carbon Preference Index; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Fatty acids, per unit mass total organic carbon; Fatty acids, total per unit sediment mass; Glomar Challenger; Hydrocarbon, per unit mass total organic carbon; Hydrocarbon per unit sediment; Leg75; Lipids; Lithology/composition/facies; n-Alkane, per unit mass total organic carbon; n-Alkane, total per unit sediment mass; n-Alkanoic acid, per unit mass total organic carbon; n-Alkanoic acid, total per unit sediment mass; n-Alkanol, per unit mass total organic carbon; n-Alkanol, total per unit sediment mass; n-C26/n-C16 alkanoic acids ratio; Pristane/n-heptadecane ratio; Pristane/Phytane ratio; Ratio; Sample code/label; see reference(s); South Atlantic/RIDGE; Sterols, per unit mass total organic carbon; Sterols per unit sediment mass
    Type: Dataset
    Format: text/tab-separated-values, 250 data points
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