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  • 1
    Electronic Resource
    Electronic Resource
    Quantitative thin-layer chromatography of sedimentary organic matter (1981)
    s.l. : American Chemical Society
    Analytical chemistry 53 (1981), S. 914-916 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00229a044
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Preparative fractionation of petroleum heavy ends by ion exchange chromatography (1984)
    s.l. : American Chemical Society
    Analytical chemistry 56 (1984), S. 313-315 
    Details
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ac00266a049
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Organic geochemistry of Cretaceous black shales at DSDP Hole 75-530A
    PANGAEA
    In:  Supplement to: Deroo, Gerard; Herbin, Jean-Paul; Huc, Alain Y (1984): Organic geochemistry of Cretaceous black shales from Deep Sea Drilling Project Site 530, Leg 75, eastern South Atlantic. In: Hay, WW; Sibuet, J-C; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 75, 983-999, https://doi.org/10.2973/dsdp.proc.75.130.1984
    Details
    Publication Date: 2023-06-27
    Description: Five-hundred ten meters of Cretaceous sediments were drilled north of the Walvis escarpment in Hole 530A during Leg 75. An immature stage of evolution for organic matter can be assigned to all the samples studied. Black shales are interbedded with red and green claystone in the bottom sedimentary unit, Unit 8, which is of Coniacian to late Albian age. The richest organic carbon contents and petroleum potentials occur in the black shales. Detrital organic matter is present throughout the various members of a sequence, mixed with largely oxidized organic matter in the gray and green claystone or marlstone members on both sides. Detrital organic matter also characterizes the black streaks observed in the claystones. Vertical discontinuities in organic matter distribution are assigned to slumping. Several types of black shales can be identified, according to their content of detrital organic matter, the more detrital black levels corresponding to the Albian-Cenomanian period. Cyclic variations of organic matter observed for a sequence can occur for a set of sequences and even for some consecutive sets of sequences. Climatic factors are proposed to account for the cyclic sedimentation and distribution of organic matter for every sequence that includes a black bed.
    Keywords: 75-530A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg75; South Atlantic/RIDGE
    Type: Dataset
    Format: application/zip, 5 datasets
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    DATA PANGAEA
  • 4
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    C1-C8 hydrocarbons in marine sediments
    PANGAEA
    In:  Supplement to: Whelan, Jean K; Hunt, John M; Jasper, John P; Huc, Alain Y (1984): Migration of C1-C8 hydrocarbons in marine sediment. Organic Geochemistry, 6, 683-694, https://doi.org/10.1016/0146-6380(84)90089-5
    Details
    Publication Date: 2023-06-27
    Description: Light hydrocarbon (C1-C8) profiles are compared for three wells of varying maturities: two immature DSDP wells (Site 397 near the Canary Islands and Site 530A near the Walvis Ridge in the south-east Atlantic) and a mature well, the East Cameron well in the Texas Gulf Coast. Primary migration of C1 and C2 appears to be occurring in all of the sedimentary rocks examined. Primary migration of C3+ components becomes important only as fine-grained sedimentary rocks enter the catagenetic hydrocarbon generation zone or over short distances in more permeable sections. Lateral migration along bedding planes was more important than vertical migration in sedimentary rocks of all maturities. The lightest (methane, ethane and propane gases) hydrocarbon show greater fractionation than do the C4-C8 alkanes which generally show minimal fractionation during the migrational process. Subsurface diffusion coefficients for these p.p.b. quantities of C2-C5 alkanes from immature sediments from DSDP Site 530 are estimated to be several orders of magnitude less than values reported in the literature for diffusion of much larger amounts of these compounds from mature water wet sediments into air or sandstones. Since our calculations suggest light hydrocarbons are present in amounts less than their reported solubilities in pure water at 25°C, we postulate that the sediment organic matter has a substantial effect on retarding the movement of these light hydrocarbons.
    Keywords: 63-467; 64-481A; 75-530A; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg63; Leg64; Leg75; North Pacific/GAP; North Pacific/Gulf of California/BASIN; South Atlantic/RIDGE
    Type: Dataset
    Format: application/zip, 2 datasets
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  • 5
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    Geochemistry of organic carbon at DSDP Sites 75-530 and 75-532
    PANGAEA
    In:  Supplement to: Meyers, Philip A; Brassell, Simon C; Huc, Alain Y (1984): Geochemistry of organic carbon in South Atlantic sediments from Deep Sea Drilling Project Leg 75. In: Hay, WW; Sibuet, J-C; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 75, 967-981, https://doi.org/10.2973/dsdp.proc.75.129.1984
    Details
    Publication Date: 2023-06-27
    Description: CHN analyses of sediments and rocks sampled during DSDP Leg 75 in the South Atlantic have provided concentrations of organic carbon and atomic C/N ratios of organic matter from two sites. High values of organic carbon were measured in sediments deposited during Neogene and Cretaceous times at Site 530 in the Angola Basin; sediments deposited at other times contain less than 0.5% organic carbon. Development of the Benguela Current and associated upwelling-supported biological productivity is recorded in late Miocene to Holocene sediments which contain 1 to 7% organic carbon. These sediments include debris flows and turbidites composed of predominantly biogenic materials originally deposited on the Walvis Ridge and on the African continental margin. Organic-carbon-rich black shales containing up to 17% organic carbon occur in late Albian to Coniacian turbidite sequences. These Cretaceous black shale layers are commonly several centimeters thick and are separated by bioturbated fine-grained organic-carbon-poor turbidites which are usually much thicker. At Site 532 on the Walvis Ridge, biogenic sediments deposited between late Miocene and Holocene times contain 1 to 9% organic carbon. Fluctuations in the intensity of high biological productivity associated with the Benguela Current are preserved in alternating light and dark layers of sediments. C/N ratios of organic matter in sediments from both sites are typical of marine sources
    Keywords: 75-530; 75-530_Site; 75-530A; 75-530B; 75-532; 75-532_Site; 75-532B; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Leg75; South Atlantic; South Atlantic/RIDGE
    Type: Dataset
    Format: application/zip, 4 datasets
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  • 6
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    (Table 3) Descriptions and organic contents of sediment at DSDP Site 75-532
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 75-532; 75-532B; Calcium carbonate; Calculated, see reference(s); Carbon, organic, total; Carbon/Nitrogen ratio; Carbonate bomb (Müller & Gastner, 1971); Deep Sea Drilling Project; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analyzer CHN (Hewlett-Packard 185-B); Epoch; Event label; Glomar Challenger; Leg75; Sample code/label; see reference(s); South Atlantic
    Type: Dataset
    Format: text/tab-separated-values, 911 data points
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  • 7
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    (Table 4) Organic matter contents and paleoproductivities at DSDP Site 75-530
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 75-530_Site; Age, maximum/old; Age, minimum/young; Calculated; Carbon, organic, total; Carbon, organic, total, maximum; Carbon, organic, total, minimum; Carbon/Nitrogen ratio; COMPCORE; Composite Core; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Description; DSDP; Element analyzer CHN (Hewlett-Packard 185-B); Glomar Challenger; Leg75; Lithologic unit/sequence; Paleoproductivity as carbon; PP calculated (Müller & Suess, 1979); Replicates; Sedimentation rate; see reference(s); South Atlantic/RIDGE
    Type: Dataset
    Format: text/tab-separated-values, 178 data points
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  • 8
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    (Table 5) Organic matter contents and paleoproductivities at DSDP Site 75-532
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 75-532_Site; Calculated; Carbon, organic, total; Carbon, organic, total, maximum; Carbon, organic, total, minimum; Carbon/Nitrogen ratio; Ceratium geniculatum; COMPCORE; Composite Core; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Description; DSDP; Element analyzer CHN (Hewlett-Packard 185-B); Glomar Challenger; Leg75; Lithologic unit/sequence; Paleoproductivity as carbon; PP calculated (Müller & Suess, 1979); Replicates; Sedimentation rate; see reference(s); South Atlantic
    Type: Dataset
    Format: text/tab-separated-values, 42 data points
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  • 9
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    (Table 2) Descriptions and organic contents of sediment at DSDP Site 75-530
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 75-530; 75-530A; 75-530B; Calcium carbonate; Calculated, see reference(s); Carbon, organic, total; Carbon/Nitrogen ratio; Carbonate bomb (Müller & Gastner, 1971); Deep Sea Drilling Project; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analyzer CHN (Hewlett-Packard 185-B); Elevation of event; Epoch; Event label; Glomar Challenger; Latitude of event; Leg75; Longitude of event; Sample code/label; see reference(s); South Atlantic/RIDGE
    Type: Dataset
    Format: text/tab-separated-values, 1103 data points
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  • 10
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    (Table 1) Carbon, and pyrolysis at DSDP Core 75-530A-101
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 75-530A; Carbon, organic, total; Carbon, pyrolysis mineral; Carbon dioxide yield, S3 per unit sediment mass; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Element analyser CHN, LECO; Glomar Challenger; Hydrocarbon per unit sediment; Hydrogen index, mass HC, per unit mass total organic carbon; Leg75; Oxygen index, mass CO2, per unit mass total organic carbon; Pyrolysis temperature maximum; Rock eval pyrolysis (Espitalié et al. 1977); Sample code/label; South Atlantic/RIDGE
    Type: Dataset
    Format: text/tab-separated-values, 568 data points
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