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Copelin, E C; Larter, S R (1983): (Table 1) Organic geochemistry at DSDP Leg 71 Holes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.815222, Supplement to: Copelin, EC; Larter, SR (1983): Chemical characterization of aromatic hydrocarbons, kerogen, and humic acids in Deep Sea Drilling Project Leg 71 Cores. In: Ludwig, WJ; Krasheninnikov, VA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 71, 1045-1049, https://doi.org/10.2973/dsdp.proc.71.140.1983

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Abstract:
Forty-three core samples from Sites 511 through 514 of DSDP Leg 71 were analyzed geochemically. The black shales at the bottom of Hole 511, in the basin province of the Falkland Plateau, contain an average of 1590 ppm extractable organic matter (EOM) and 120 ppm hydrocarbons. Whereas molecular type-carbon number distributions of mono- and polynuclear aromatic hydrocarbons and their sulphur and oxygen analogues in the black shale "aromatic hydrocarbon" fractions are very similar to those of many crude oils, other data - gas chromatography (GC) fingerprint, pyrolysis GC, visual kerogen analysis, H/C ratio - suggest the black shale section is thermally immature. Together, these observations imply that many of the hydrocarbons were deposited with the original sediments or are diagenetic products of other biological compounds. Pyrograms of the humic acid and kerogen fractions from the black shale interval are typical of geopolymers derived from marine algal material. It appears that these humic acids and kerogens are derived from the same lipid stock.
Project(s):
Coverage:
Median Latitude: -48.417420 * Median Longitude: -32.790380 * South-bound Latitude: -51.004700 * West-bound Longitude: -46.971700 * North-bound Latitude: -46.046200 * East-bound Longitude: -24.640000
Date/Time Start: 1980-01-15T00:00:00 * Date/Time End: 1980-02-08T00:00:00
Minimum DEPTH, sediment/rock: 4.1 m * Maximum DEPTH, sediment/rock: 627.0 m
Event(s):
71-511  * Latitude: -51.004700 * Longitude: -46.971700 * Date/Time: 1980-01-15T00:00:00 * Elevation: -2589.0 m * Penetration: 632 m * Recovery: 384.4 m * Location: South Atlantic/PLATEAU * Campaign: Leg71 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 68 cores; 616.5 m cored; 14.5 m drilled; 62.4 % recovery
71-512  * Latitude: -49.869800 * Longitude: -40.845200 * Date/Time: 1980-01-22T00:00:00 * Elevation: -1846.0 m * Penetration: 77.9 m * Recovery: 67 m * Location: South Atlantic/BANK * Campaign: Leg71 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 77.3 m cored; 0 m drilled; 86.6 % recovery
71-513  * Latitude: -47.583200 * Longitude: -24.640000 * Date/Time: 1980-02-02T00:00:00 * Elevation: -4373.0 m * Penetration: 94.5 m * Recovery: 56.7 m * Location: South Atlantic/FLANK * Campaign: Leg71 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 9 cores; 85 m cored; 9.5 m drilled; 66.7 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEvent
Latitude of eventLatitude
Longitude of eventLongitude
Elevation of eventElevationm
Sample code/labelSample labelCopelin, E CDSDP/ODP/IODP sample designation
DEPTH, sediment/rockDepth sedmGeocode – mbsf
Organic matter, extractableEOMmg/kgCopelin, E Csee reference(s)
HydrocarbonsHCµg/gCopelin, E CGas chromatography
Humic acidHum acmg/gCopelin, E CPyrolysis gas chromatographyHumic acids were not purified by dialysis; empty cells = not isolated
10 HydrocarbonsHC%Copelin, E CGas chromatographyExtractable organic matter
11 Saturated hydrocarbon fractionSat HC%Copelin, E CGas chromatographyExtractable organic matter
12 AromaticsAromatics%Copelin, E CMass spectrometryExtractable organic matter
13 Organic matterOM%Copelin, E Csee reference(s)Extractable; O-heterocyclic compounds
14 AsphaltenesAsphaltenes%Copelin, E CChromatographicExtractable organic matter
Size:
371 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Event

Latitude

Longitude

Elevation [m]

Sample label

Depth sed [m]

EOM [mg/kg]

HC [µg/g]

Hum ac [mg/g]
10 
HC [%]
11 
Sat HC [%]
12 
Aromatics [%]
13 
OM [%]
14 
Asphaltenes [%]
71-511 -51.0047-46.9717-258971-511-3-4,120-130/13520.5177240.64314954640
71-511-51.0047-46.9717-258971-511-6-3,120-130/13547.5130141.18011924940
71-511-51.0047-46.9717-258971-511-9-5,120-130/13579.01531510645733
71-511-51.0047-46.9717-258971-511-16-1,120-130/135139.5245351.750141043749
71-511-51.0047-46.9717-258971-511-18-1,120-130/135158.5142251.580181444834
71-511-51.0047-46.9717-258971-511-24-4,120-130/135210.538220.234581048348
71-511-51.0047-46.9717-258971-511-28-5,120-130/135231.04327625012317
71-511-51.0047-46.9717-258971-511-31-5,120-130/135259.52411010.682424114513
71-511-51.0047-46.9717-258971-511-34-5,120-130/135288.061190.3073112194227
71-511-51.0047-46.9717-258971-511-37-1,120-130/135310.5151750.214504373515
71-511-51.0047-46.9717-258971-511-40-4,120-130/135343.5124140.12611381772
71-511-51.0047-46.9717-258971-511-43-4,120-130/135372.079220.122292543239
71-511-51.0047-46.9717-258971-511-46-2,120-130/135397.53121683632923
71-511-51.0047-46.9717-258971-511-49-4,120-130/135429.019130.0007020501515
71-511-51.0047-46.9717-258971-511-52-5,120-130/135459.01474733143320
71-511-51.0047-46.9717-258971-511-55-4,120-130/135486.01590.1556238242315
71-511-51.0047-46.9717-258971-511-58-3,120-130/135513.04814302643337
71-511-51.0047-46.9717-258971-511-60-5,120-130/135535.020172060.12710553159
71-511-51.0047-46.9717-258971-511-62-5,120-130/135554.024681230.8925324649
71-511-51.0047-46.9717-258971-511-64-4,120-130/135571.51411920.2827434053
71-511-51.0047-46.9717-258971-511-66-4,120-130/135590.519391680.0719635635
71-511-51.0047-46.9717-258971-511-68-2,120-130/135606.5978630.5987344251
71-511-51.0047-46.9717-258971-511-70-3,120-130/135627.0727700.14010645040
71-512 -49.8698-40.8452-184671-512-3-2,120-130/1359.013129221753048
71-512-49.8698-40.8452-184671-512-9-2,120-130/13533.94314322933929
71-512-49.8698-40.8452-184671-512-15-2,120-130/13558.9276211745425
71-513 -47.5832-24.6400-437371-513-4-4,120-130/13534.09325272524627
71-513-47.5832-24.6400-437371-513-9-5,120-130/13583.04222524843018
71-513A -47.5832-24.6400-437371-513A-2-6,120-130/13575.0140470.265333124522
71-513A-47.5832-24.6400-437371-513A-5-4,120-130/135110.091220.129241774630
71-513A-47.5832-24.6400-437371-513A-8-3,120-130/135137.096240.180252055223
71-513A-47.5832-24.6400-437371-513A-12-3,120-130/135175.032150.089463882925
71-513A-47.5832-24.6400-437371-513A-15-6,120-130/135208.042235523322718
71-513A-47.5832-24.6400-437371-513A-17-4,120-130/135224.0166403373327
71-513A-47.5832-24.6400-437371-513A-20-2,120-130/135249.395540.1725744133112
71-513A-47.5832-24.6400-437371-513A-28-3,120-130/135327.050160.420322843632
71-513A-47.5832-24.6400-437371-513A-31-6,120-130/135360.02590.060333033928
71-514 -46.0462-26.8550-431871-514-2-2,120-130/1354.13482244.21064568315
71-514-46.0462-26.8550-431871-514-8-2,120-130/13530.6105373523124322
71-514-46.0462-26.8550-431871-514-14-2,120-130/13557.0200143.8008715438
71-514-46.0462-26.8550-431871-514-20-2,120-130/13583.41691911745237
71-514-46.0462-26.8550-431871-514-26-2,120-130/135109.81762011925732
71-514-46.0462-26.8550-431871-514-32-2,120-130/135136.2871113856027