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  • PANGAEA  (16)
  • Wiley-Blackwell  (1)
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  • 11
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    Unknown
    Contents of organic compounds in sediments from DSDP Legs 1 and 4
    PANGAEA
    In:  Supplement to: Aizenshtat, Z; Baedecker, M J; Kaplan, I R (1973): Distribution and diagenesis of organic compounds in JOIDES sediment from Gulf of Mexico and western Atlantic. Geochimica et Cosmochimica Acta, 37(8), 1881-1898, https://doi.org/10.1016/0016-7037(73)90147-6
    Details
    Publication Date: 2023-06-27
    Description: Fifteen sediment samples were studied from five drill sites recovered by the Glomar Challenger on Legs I and IV in the Gulf of Mexico and western Atlantic. This study concentrated on compounds derived from biogenic precursors, namely: (1) hydrocarbons, (2) fatty acids, (3) pigments and (4) amino acids. Carbon isotope (dC13) data [values 〈(-26)‰, relative to PDB], long-chain n-alkyl hydrocarbons (〉〉C27) with odd carbon numbered molecules dominating even carbon numbered species, and presence of perylene proved useful as possible indicators for terrigenous contributions to the organic matter in some samples. Apparently land-derived organic matter can be transported for distances over 1000 km into the ocean and their source still recognized. The study was primarily designed to investigate: (i) the sources of the organic matter present in the sediment, (ii) their stability with time of accumulation and (iii) the conditions necessary for in situ formation of new compounds.
    Keywords: 1-2; 1-3; 1-6; 1-6A; 4-26; 4-27; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Gulf of Mexico/KNOLL; Gulf of Mexico/PLAIN; Leg1; Leg4; North Atlantic/CONT RISE; North Atlantic/RIDGE; North Atlantic/TROUGH
    Type: Dataset
    Format: application/zip, 10 datasets
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    DATA PANGAEA
  • 12
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    (Table 2, page 887) Trace constituents of interstitial water, DSDP Leg 7, from large volume ( about 100 ml) squeezing (Cores 62A-12, 65-9, 66-7) (1971)
    PANGAEA
    In:  Supplement to: Presley, Bobby J; Kaplan, I R (1971): Interstitial Water Chemistry: Deep Sea Drilling Project, Leg 7. In: Winterer, E.L.; et al., Initial Reports of the Deep Sea Drilling Project, 7, Initial Reports of the Deep Sea Drilling Project, 7, U.S. Government Printing Office, VII, 883-887, https://doi.org/10.2973/dsdp.proc.7.113.1971
    Details
    Publication Date: 2023-08-28
    Description: The interstitial water received at UCLA from Leg 7 (Guam to Hawaii) consisted of forty-two samples of approximately 5 milliliters each, three samples of approximately 10 milliliters each, and three samples of approximately 100 milliliters each. These pore waters had been squeezed from sediments consisting primarily of biogenic ooze, and had been collected at five different drilling sites along the route. High cobalt value were observed at Site 66 and were accompanied by a relatively high manganese concentration, but more normal iron, nickel and copper concentrations. This apparent cobalt enrichment could not be explained at the time of procedure. The line Islands area were Site 66 is situated was later notoriously known for its high Co values in manganese crust deposits (see, He, G., Ma, W., Song, C., Yang, S., Zhu, B., Yao, H., Jiang, X., Cheng, Y., 2011. Distribution characteristics of seamount cobalt-rich ferromanganese crusts and the determination of the size of areas for exploration and exploitation. Acta Oceanologica Sinica 30, 63–75. doi:10.1007/s13131-011-0120-9).
    Keywords: 7-62A; 7-65; 7-66; Atomic absorption spectrometry (AAS); Cobalt; Comment; Copper; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; Event label; Glomar Challenger; Identification; Iron; Leg7; Manganese; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Pacific/BASIN; North Pacific/RIDGE; Sample code/label; Sediment type; Silicon
    Type: Dataset
    Format: text/tab-separated-values, 30 data points
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    DATA PANGAEA
  • 13
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    (Table 1) Organic geochemical results for the samples from DSDP Hole 41-368 (1987)
    PANGAEA
    In:  Supplement to: Simoneit, Bernd R T; Brenner, Shmuel; Peters, K E; Kaplan, I R (1978): Thermal alteration of Cretaceous black shale by basaltic intrusions in the Eastern Atlantic. Nature, 273(5663), 501-504, https://doi.org/10.1038/273501a0
    Details
    Publication Date: 2024-02-03
    Description: DSDP site 41–368 in the eastern Atlantic represents an unusual locality, where the behaviour of a short column of organic-rich shale can be studied in relation to the steep thermal gradient imposed by basaltic intrusions. This study indicates that the dominant effects on the measured parameters of the organic matter were thermal and that compositional variations in the original matter were minor in comparison.
    Keywords: 41-368; Calcium carbonate; Carbon, organic, total; Carbon, total; Deep Sea Drilling Project; Depth, bottom/max; Depth, relative; DEPTH, sediment/rock; Depth, top/min; Depth, uncorrected; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Hydrocarbon yield, S2 per unit sediment mass; Hydrogen/Carbon ratio; Kerogen, Ro; Leg41; Nitrogen/Carbon ratio; North Atlantic/CONT RISE; Number; Pristane/Phytane ratio; Sample code/label; δ13C, kerogen; δ Deuterium
    Type: Dataset
    Format: text/tab-separated-values, 236 data points
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    DATA PANGAEA
  • 14
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    (Table 2) Results of kerogen and asphaltene analyses of samples from DSDP Hole 41-368 (1981)
    PANGAEA
    Details
    Publication Date: 2024-02-03
    Keywords: 41-368; Carbon/Nitrogen ratio; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analyser CHNS; Glomar Challenger; Hydrogen/Carbon ratio; Isotope ratio mass spectrometry; Kerogen, Ro; Leg41; North Atlantic/CONT RISE; Sample code/label; Yield; δ13C; δ34S, total; δ Deuterium
    Type: Dataset
    Format: text/tab-separated-values, 159 data points
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  • 15
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    (Table 1) Results of elemental and stable isotope analyses and lipid compositions of samples from DSDP Hole 41-368 (1981)
    PANGAEA
    Details
    Publication Date: 2024-02-03
    Keywords: 41-368; Calcium carbonate; Carbon, inorganic, total; Carbon, organic, total; Carbon/Nitrogen ratio; Carbon Preference Index; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Distance; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analyser CHNS; Fatty acid esters; Feature; Gas chromatography; Glomar Challenger; Hydrocarbons; Isotope ratio mass spectrometry; Leg41; Lipids, total; Nitrogen, total; North Atlantic/CONT RISE; Pristane/Phytane ratio; Sample code/label; Sulfur, total; δ13C
    Type: Dataset
    Format: text/tab-separated-values, 423 data points
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  • 16
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    Elemental and isotope compositions of lipids, kerogens and asphaltenes from samples of DSDP Hole 41-368 (1981)
    PANGAEA
    In:  Supplement to: Simoneit, Bernd R T; Brenner, Shmuel; Peters, K E; Kaplan, I R (1981): Thermal alteration of Cretaceous black shale by diabase intrusions in the eastern Atlantic - II. Effects on bitumen and kerogen. Geochimica et Cosmochimica Acta, 45(9), 1581-1602, https://doi.org/10.1016/0016-7037(81)90287-8
    Details
    Publication Date: 2024-02-03
    Description: The thermal effects of three (one major and two minor) Miocene diabase intrusions on Cretaceous black shales from DSDP site 41-368 have been analyzed. A concentration gradient was observed, especially for the hydrocarbons, decreasing towards the major intrusion and between the three sills. The thermally-altered samples in the proximity of and between the sills contained elemental sulfur and an excess of thermally-derived pristane over phytane. whereas, the unaltered sediments contained no elemental sulfur, and more phytane than pristane. A maximum yield of the extractable hydrocarbons was observed at a depth of 7 m below the major sill. Two classes of molecular markers were present in this bitumen suite. The first was sesqui-, di- and triterpenoids and steranes. which could be correlated with both terrigenous and autochthonous sources. They were geologically mature and showed no significant changes due to the thermal stress. The second class was found in the altered samples, which contained only polynuclear aromatic hydrocarbons with low alkyl substitution and sulfur and oxygen heterocyclic aromatic compounds. These compounds were derived from pyrolytic reactions during the thermal event. Kerogen was isolated from all of these samples, but only traces of humic substances were present. The H/C, N/C, d13C, d34S and dD all exhibit the expected effects of thermal stress. The kerogen becomes more aromatized and richer in 13C, 34S and D in the proximity of and between the sills. Maturation trends were also measured by the vitrinite reflectance and electron spin resonance, where the thermal stress could be correlated with an elevated country rock temperature and an increased degree of aromaticity. The effects of in situ thermal stress on the organic-rich shales resulted in the generation and expulsion of petroliferous material from the vicinity of the sills.
    Keywords: 41-368; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg41; North Atlantic/CONT RISE
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 17
    Electronic Resource
    Electronic Resource
    Evaluation of isotope ratio (IR) mass spectrometry for the study of drug metabolism (1985)
    Chichester : Wiley-Blackwell
    Biological Mass Spectrometry 12 (1985), S. 502-506 
    Details
    ISSN: 1052-9306
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Isotope ratio (IR) mass spectrometry was evaluated for the study of drug metabolism and balance using 13C,15N2- labelled antipyrine (AP) as a test drug. Rats were given 40 mg kg-1 (13C, 15N2)AP intraperitoneally. Breath, urine, faeces and blood were collected. Except for breath, samples were combusted in sealed quartz tubes. The resulting CO2 and N2 were analysed for excess 13C and 15N, relative to pre-dose samples, by IR mass spectrometry. In addition, blood levels of AP and cumulative excretion of urinary AP metabolites were determined by gas chromatography/mass spectrometry/selected ion monitoring (GC/MS/SIM) and high-performance liquid chromatography (HPLC) respectively. Excess 13C and 15N levels in blood were comparable with observed levels of AP, and urinary recoveries of 13C (42%) were in good agreement with those calculated from HPLC data (45%). N-Demethylation, one of the important pathways of AP metabolism, was most rapidly determined by excess 13CO2 excretion in breath (8%). The IR mass spectral analysis complemented gas chromatographic/mass spectrum and HPLC analyses, and was less complex.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bms.1200120911
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    Paper (German National Licenses)
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