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  • 1
    Digitale Medien
    Digitale Medien
    Analyses of organic particulates from Boston Harbor by thermal distillation-pyrolysis (1983)
    s.l. : American Chemical Society
    Environmental science & technology 17 (1983), S. 292-298 
    Details
    ISSN: 1520-5851
    Quelle: ACS Legacy Archives
    Thema: Chemie und Pharmazie , Energietechnik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1021/es00111a010
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  • 2
    Digitale Medien
    Digitale Medien
    Volatile C 1 –C 8 organic compounds in macroalgae (1982)
    [s.l.] : Nature Publishing Group
    Nature 299 (1982), S. 50-52 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Four species of seaweeds, Ulva lactuca, Ascophyllum nodosum, Gracilaria tikvahiae and Hypnea musciformis were grown in 1,700-1 aerated tanks using circulating seawater. The macroalgae (grown and maintained by J. Ryther of Woods Hole Oceanographic Institute) were selected because of their ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/299050a0
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  • 3
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    Unbekannt
    Concentrations of interstitial water, methane, and other sediment components related to microorganisms at DSDP Holes 96-618 and 96-619
    PANGAEA
    In:  Supplement to: Whelan, Jean K; Oremland, Ronald S; Tarafa, Martha; Smith, Richard; Howarth, Robert; Lee, Cindy (1986): Evidence for sulfate-reducing and methane-producing microorganisms in sediments from Sites 618, 619, and 622. In: Bouma, AH; Coleman, JM; Meyer, AW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 96, 767-775, https://doi.org/10.2973/dsdp.proc.96.147.1986
    Details
    Publikationsdatum: 2023-05-12
    Beschreibung: Radiolabeled products were formed from labeled substrates during anaerobic incubation of sediments from Sites 618, 619, and 622. One set of experiments formed 14CO2, 14CH4, and 35SH2 from 2-14C-acetate and 35S-sulfate; a second set formed 14CH4 from 14C-methylamine or 14C-trimethylamine. Levels of 14CO2 and 35S2 formed were two to three orders of magnitude greater than 14CH4. Production of 14CH4 by Deep Sea Drilling Project (DSDP) sediments was four to five orders of magnitude less than that formed by anoxic San Francisco Bay sediment. However, incubation of Site 622 sediment slurries under H2 demonstrated production of small quantities of CH4. These results indicate that DSDP sediments recovered from 4 to 167 m sub-bottom (age 85,000-110,000 yr.) harbor potential microbial activity which includes sulfate reducers and methanogens. Analysis of pore waters from these DSDP sites indicates that bacterial substrates (acetate, methylated amines) were present.
    Schlagwort(e): Deep Sea Drilling Project; DSDP
    Materialart: Dataset
    Format: application/zip, 2 datasets
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  • 4
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    Pyrolyzable carbon, temperature maximum, production index and lithology for DSDP Leg 96 holes
    PANGAEA
    In:  Supplement to: Whelan, Jean K; Tarafa, Martha (1986): Organic matter in Leg 96 sediments: Characterization by pyrolysis. In: Bouma, AH; Coleman, JM; Meyer, AW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 96, 757-766, https://doi.org/10.2973/dsdp.proc.96.146.1986
    Details
    Publikationsdatum: 2023-05-12
    Beschreibung: Sediments from Deep Sea Drilling Project Sites 615, 617, 618, 619, and 620-623 were subjected to pyrolysis. The sediments are immature with respect to petroleum generation as determined by production index values of less than 0.1 and Tmax values of 460-480°C. The amount of pyrolyzable organic matter was moderately low as compared to typical petroleum source rocks. The immature organic matter present does not appear to contain a significant proportion of woody material as shown by the low gas-generating potential. Typical overbank sediments from Sites 617 and 620 generally show higher P2 values (500-800 µg hydrocarbon per g dry weight sediment) than typical channel-fill sediments from Sites 621 and 622 (P2 = 450-560 µg/g). Tmax for both types of sediment remained very constant (462-468 °C) with a slight elevation (+ 15°C) occurring in samples containing lignite. The highest P2 values occurred in sections described as turbidites. Very low P2 values (about 50 µg/g) occurred in sands. P2 values for shallower sections of basin Sites 618 and 619 tended to be higher (900-1000 µg/g) and decreased in deeper, more terrigenous sections of Site 619. Preliminary experiments indicate that microbiological degradation of sediment organic matter causes a decrease in P2. Pyrolyzable organic matter from lower fan Site 623 appears to increase with depth in two different sediment sequences (40-85 and 95-125 m sub-bottom). Organic matter type, as shown by pyrolysis capillary gas chromatography (GC) patterns, was generally the same throughout the well, with much more scatter occurring in the deepest sections (130-155 m sub-bottom). One major and two minor organic matter types could be recognized in both fan and basin sites drilled on Leg 96.
    Schlagwort(e): Deep Sea Drilling Project; DSDP
    Materialart: Dataset
    Format: application/zip, 2 datasets
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  • 5
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    (Table 1) Pyrolyzable carbon, temperature maximum and lithology for Leg 96 holes
    PANGAEA
    Details
    Publikationsdatum: 2023-06-27
    Schlagwort(e): 96-615; 96-617; 96-618; 96-618A; 96-619; 96-620; 96-621; 96-622; Carbon, organic, pyrolysable; Carbon, organic, pyrolysable, standard deviation; Carbon analyser, LECO; Deep Sea Drilling Project; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Gulf of Mexico; Gulf of Mexico/BASIN; Gulf of Mexico/FAN; Latitude of event; Leg96; Longitude of event; Pyrolysis temperature maximum; Pyrolysis temperature maximum, standard deviation; Sample code/label; see reference(s); Type
    Materialart: Dataset
    Format: text/tab-separated-values, 297 data points
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  • 6
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    (Table 3) Pyrolysis Pi capillary gas chromatography patterns and percentage organic carbon for Leg 96 holes
    PANGAEA
    Details
    Publikationsdatum: 2023-06-27
    Schlagwort(e): 96-615; 96-618A; 96-619; 96-621; 96-623; Carbon, organic, pyrolysable; Carbon, organic, pyrolysable, cappillary pattern; Carbon, organic, pyrolysable, standard deviation; Carbon, organic, total; Carbon analyser, LECO; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Gulf of Mexico; Gulf of Mexico/BASIN; Gulf of Mexico/FAN; Latitude of event; Leg96; Longitude of event; Production index, S1/(S1+S2); Production index, S1/(S1+S2), standard deviation; Pyrolysis temperature maximum; Pyrolysis temperature maximum, standard deviation; Rock eval pyrolysis (Behar et al., 2001); Sample code/label; see reference(s)
    Materialart: Dataset
    Format: text/tab-separated-values, 184 data points
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  • 7
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    (Table 1) Concentrations of interstitial water, methane, and other sediment components at DSDP Hole 96-619
    PANGAEA
    Details
    Publikationsdatum: 2023-06-27
    Schlagwort(e): 96-619; Acetate; Acetate, standard deviation; Carbon, organic, total; Carbon, organic, total, standard deviation; Deep Sea Drilling Project; DEPTH, sediment/rock; Dimethylamine, dissolved; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Gulf of Mexico; Leg96; Methane; Monomethylamine; Sample code/label; see reference(s); Sulfate; Trimethylamine
    Materialart: Dataset
    Format: text/tab-separated-values, 123 data points
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  • 8
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    Unbekannt
    (Table 2) Concentrations of interstitial water, methanes, and other sediment components at DSDP Hole 96-618
    PANGAEA
    Details
    Publikationsdatum: 2023-06-27
    Schlagwort(e): 96-618; Acetate; Acetate, standard deviation; Carbon, organic, total; Carbon, organic, total, standard deviation; Deep Sea Drilling Project; DEPTH, sediment/rock; Dimethylamine, dissolved; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Gulf of Mexico/BASIN; Leg96; Methane; Monomethylamine; Sample code/label; see reference(s); Sulfate; Trimethylamine
    Materialart: Dataset
    Format: text/tab-separated-values, 33 data points
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  • 9
    facet.materialart.
    Unbekannt
    (Table 1) Organic carbon and epoch at DSDP Hole 93-605
    PANGAEA
    Details
    Publikationsdatum: 2023-06-27
    Schlagwort(e): 93-605; Carbon, organic, total; Carbon analyser, LECO; Comment; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Epoch; Glomar Challenger; Leg93; North Atlantic; Sample code/label; Visual description
    Materialart: Dataset
    Format: text/tab-separated-values, 44 data points
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  • 10
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    Epoch, organic carbon and compounds at DSDP Holes 93-605 and 95-613
    PANGAEA
    In:  Supplement to: Tarafa, Martha; Whelan, Jean K; Mountain, Gregory S (1987): Sediment slumps in the Middle and Lower Eocene of Deep Sea Drilling Project Holes 605 and 613: Chemical detection by pyrolysis techniques. In: Poag, CW; Watts, AB; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 95, 661-669, https://doi.org/10.2973/dsdp.proc.95.129.1987
    Details
    Publikationsdatum: 2023-05-12
    Beschreibung: Twenty-four sediment samples from DSDP Holes 605 (Leg 93) and 613 (Leg 95) on the New Jersey continental rise were analyzed by pyrolysis-gas chromatography. Twelve of these samples were also analyzed by pyrolysis-gas chromatography/mass spectrometry. The degree of preservation of sediment organic matter, as determined by these techniques, helped to distinguish slumped sediments from sediments that have not moved from their original place of deposition. Total levels of pyrolyzable organic material, as determined from pyrolysis-gas chromatography, were low in sediments that were not slumped, indicating that the organic material is highly degraded. Nitrogen- and oxygen-containing compounds were the primary compounds detected by gas chromatography/mass spectrometry (GCMS) analysis of the pyrolyzate of non-slumped sediments. Smaller amounts of aromatic compounds and branched alkanes were also present in some of these samples. In contrast, slumped sediments showed larger amounts of pyrolyzable organic matter, as determined from pyrolysis-gas chromatography, and better preservation of alkyl chains in the sediment organic matter, as suggested by the presence of n-alkanes in GCMS analysis of the pyrolyzate. Better preservation of the organic matter in slumped sediments can be attributed to more moderate bioturbation by bottom-dwelling organisms at the original deposition site.
    Schlagwort(e): Deep Sea Drilling Project; DSDP
    Materialart: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
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