Citation:

dsdp.proc.93.155.1987

Name: (Table 1) Organic carbon, hydrogen and oxygen index and hydrocarbons at DSDP Hole 93-603B
Published: 1987
License: https://creativecommons.org/licenses/by/3.0/

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Published: 1987 (exact date unknown) • DOI registered: 2012-10-30

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Abstract:

C2-C8 hydrocarbon concentrations (about 35 compounds identified, including saturated, aromatic, and olefinic compounds) from 27 shipboard-sealed, deep-frozen core samples of DSDP Hole 603B off the east coast of North America were determined by a gas-stripping/thermovaporization method. Total yields representing the hydrocarbons dissolved in the pore water and adsorbed on the mineral surfaces of the sediments vary from 22 to 2400 ng/g of dryweight sediment. Highest yields are measured in the two black shale samples of Core 603B-34 (hydrogen index of 360 and 320 mg/g Corg, respectively). In organic-carbon-normalized units these samples have hydrocarbon contents of 12,700 and 21,500 ng/g Corg, respectively, indicating the immaturity of their kerogens. Unusually high organic-carbonnormalized yields are associated with samples that are extremely lean in organic carbon. It is most likely that they are enriched by small amounts of migrated light hydrocarbons. This applies even to those samples with high organic-carbon contents (1.3-2.2%) of Sections 603B-28-4, 603B-29-1, 603B-49-2, and 603B-49-3, because they have an extremely low hydrocarbon potential (hydrogen index between 40 and 60 mg/g Corg). Nearly all samples were found to be contaminated by varying amounts of acetone that is used routinely in large quantities on board ship during core-cutting procedures. Therefore, 48 samples from the original set of 75 collected had to be excluded from the present study.

Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Latitude: 35.495200 * Longitude: -70.028500

Date/Time Start: 1983-05-05T00:00:00 * Date/Time End: 1983-05-05T00:00:00

Minimum DEPTH, sediment/rock: 910.97 m * Maximum DEPTH, sediment/rock: 1443.31 m

Event(s):

93-603B * Latitude: 35.495200 * Longitude: -70.028500 * Date/Time: 1983-05-05T00:00:00 * Elevation: -4633.0 m * Penetration: 1576.2 m * Recovery: 485.6 m * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 74 cores; 674.6 m cored; 0 m drilled; 72 % recovery

Comment:

Sediment depth is given in mbsf. ?0 = value uncertain due to peak overlapping, #0 = value below or near detection limit.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Sample code/label	Sample label		Schaefer, Rainer G	DSDP/ODP/IODP sample designation
2	DEPTH, sediment/rock	Depth sed	m			Geocode
3	Lithology/composition/facies	Lithology		Schaefer, Rainer G	Visual description
4	Carbon, organic, total	TOC	%	Schaefer, Rainer G	Carbon analyser, LECO
5	Hydrogen index, mass HC, per unit mass total organic carbon	HI, HC/TOC	mg/g	Schaefer, Rainer G	Rock eval pyrolysis (Behar et al., 2001)
6	Oxygen index, mass CO2, per unit mass total organic carbon	OI, CO2/TOC	mg/g	Schaefer, Rainer G	Rock eval pyrolysis (Behar et al., 2001)
7	Pyrolysis temperature maximum	Tmax	°C	Schaefer, Rainer G	Rock eval pyrolysis (Behar et al., 2001)
8	Ethene, per unit sediment mass	C2H4/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
9	Ethane, per unit sediment mass	C2H6/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
10	Propene, per unit sediment mass	C3H6/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
11	Propane, per unit sediment mass	C3H8/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
12	Isobutane, per unit sediment mass	i-C4H10/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
13	Isobutane, per unit sediment mass	i-C4H10/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method	including 1-butene
14	n-Butane, per unit sediment mass	n-C4H10/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
15	Isopentane, per unit sediment mass	i-C5H12/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
16	n-Pentane, per unit sediment mass	n-C5H12/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
17	2,2-Dimethylbutane, per unit sediment mass	2,2 DMB/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
18	Cyclopentane, per unit sediment mass	C5H10/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
19	2,3-Dimethylbutane, per unit sediment mass	2,3 DMB/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
20	2-Methylpentane, per unit sediment mass	i-C6H14/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
21	3-Methylpentane, per unit sediment mass	3-Methylpentane/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
22	n-Hexane, per unit sediment mass	n-C6H14/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
23	Methylcyclopentane, per unit sediment mass	MCP/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method	including 2,2-dimethylpentane
24	2,4-Dimethylpentane, per unit sediment mass	2,4 DMP/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
25	Benzene, per unit sediment mass	C6H6/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
26	Cyclohexane, per unit sediment mass	C6H14/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
27	2-Methylhexane, per unit sediment mass	i-C7H16/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
28	2,3-Dimethylpentane, per unit sediment mass	2,3 DMP/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method	including 1,1-dimethylcyclopentane
29	3-Methylhexane, per unit sediment mass	3-Methylhexane/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
30	1,cis-3-Dimethylcyclopentane, per unit sediment mass	1, cis-3 DMCP/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
31	1 trans-3-Dimethylcyclopentane, per unit sediment mass	1 trans-3 DMCP/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
32	1 trans-2-Dimethylcyclopentane, per unit sediment mass	1 trans-2 DMCP/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
33	n-Heptane, per unit sediment mass	n-C7/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
34	1,cis-2-Dimethylcyclopentane, per unit sediment mass	1, cis-2 DMCP/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
35	Methylcyclohexane, per unit sediment mass	C7H14/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
36	2,5-Dimethylhexane, per unit sediment mass	C8H18/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
37	Ethylcyclopentane, per unit sediment mass	C7H14/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
38	1,trans-2,cis-4-trimethylcyclopentane, per unit sediment mass	C8H16/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
39	1,trans-2,cis-3-trimethylcyclopentane, per unit sediment mass	C8H16/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
40	Toluene, per unit sediment mass	C6H5CH3/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method
41	n-Octane, per unit sediment mass	n-C8/sed	ng/g	Schaefer, Rainer G	Combined gas-stripping/thermovaporization method

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

1026 data points

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Datasets with similar metadata

Katz, BJ (1987): (Table 2) Organic carbon and hydrocarbons at DSDP Hole 93-603B. https://doi.org/10.1594/PANGAEA.789188
Dean, WE; Arthur, MA (1987): (Table 9) Calcium carbonate, organic carbon, hydrogen and oxygen index and Q-mode factor at DSDP Hole 93-603B. https://doi.org/10.1594/PANGAEA.789161
Joyce, RM; van Vleet, ES (1987): Lithology, stage, organic carbon, δ¹³C, hydrocarbons and fatty acids at DSDP Hole 93-603B. https://doi.org/10.1594/PANGAEA.789250