Citation:

dsdp.proc.63.132.1981

Name: (Table 1) C1 - C8 volatile compounds in sediments from DSDP Leg 63 Holes
Published: 1981
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Low-temperature diagenetic reactions (less than 50°C) are held responsible for the generation of small amounts of C1-C8 hydrocarbons (less than 100 ng hydrocarbon/g dry weight of sediment) at outer continental shelf Deep Sea Drilling Project Sites 468 and 469 (sub-bottom depths 415 m and 454 m, respectively). In contrast, Site 471 shows an exponential rise in hydrocarbon yields at depths greater than 500 meters. The high yields of C4-C8 hydrocarbons (up to 30 ng hydrocarbon/g dry weight of sediment) in this area of high geothermal and volcanic activity suggest the penetration of an active petroleum-generating zone. Similar arguments apply to Site 467, where relatively high levels (up to 3 µg hydrocarbon/g dry weight sediment) occurred in very shallow (250-600 m) sediments.

Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Median Latitude: 31.037820 * Median Longitude: -118.805880 * South-bound Latitude: 23.482200 * West-bound Longitude: -120.757800 * North-bound Latitude: 33.849500 * East-bound Longitude: -112.496300

Date/Time Start: 1978-10-10T00:00:00 * Date/Time End: 1978-11-08T00:00:00

Minimum DEPTH, sediment/rock: 7.8 m * Maximum DEPTH, sediment/rock: 967.0 m

Event(s):

63-467 * Latitude: 33.849500 * Longitude: -120.757800 * Date/Time: 1978-10-10T00:00:00 * Elevation: -2128.0 m * Penetration: 1041.5 m * Recovery: 399.1 m * Location: North Pacific/GAP * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 100 cores; 946.5 m cored; 38 m drilled; 42.2 % recovery

63-468 * Latitude: 32.617200 * Longitude: -120.117800 * Date/Time: 1978-10-21T00:00:00 * Elevation: -1849.0 m * Penetration: 241 m * Recovery: 81 m * Location: North Pacific/ESCARPMENT * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 25 cores; 237.5 m cored; 0 m drilled; 34.1 % recovery

63-468B * Latitude: 32.623500 * Longitude: -120.109200 * Date/Time: 1978-10-21T00:00:00 * Elevation: -1737.0 m * Penetration: 415.5 m * Recovery: 103.1 m * Location: North Pacific/ESCARPMENT * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 37 cores; 351.5 m cored; 0 m drilled; 29.3 % recovery

Comment:

Sediment depth is given in mbsf. Empty cells = not determined.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Latitude of event	Latitude
3	Longitude of event	Longitude
4	Elevation of event	Elevation	m
5	Sample code/label	Sample label		Whelan, Jean K	DSDP/ODP/IODP sample designation
6	DEPTH, sediment/rock	Depth sed	m			Geocode
7	Lithology/composition/facies	Lithology		Whelan, Jean K
8	Epoch	Epoch		Whelan, Jean K
9	Methane per unit sediment mass	CH4/sed	µg/g	Whelan, Jean K	see reference(s)
10	Ethane per unit sediment mass	C2H6/sed	ng/g	Whelan, Jean K	see reference(s)
11	Propane per unit sediment mass	C3H8/sed	ng/g	Whelan, Jean K	see reference(s)
12	Isobutane per unit sediment mass	i-C4H10/sed	ng/g	Whelan, Jean K	see reference(s)
13	n-Butane per unit sediment mass	n-C4H10/sed	ng/g	Whelan, Jean K	see reference(s)
14	2,2-Dimethylpropane per unit sediment mass	2,2 DMP/sed	ng/g	Whelan, Jean K	see reference(s)
15	Isopentane per unit sediment mass	i-C5H12/sed	ng/g	Whelan, Jean K	see reference(s)
16	n-Pentane per unit sediment mass	n-C5H12/sed	ng/g	Whelan, Jean K	see reference(s)
17	Cyclopentane per unit sediment mass	C5H10/sed	ng/g	Whelan, Jean K	see reference(s)
18	2,2-Dimethylbutane per unit sediment mass	2,2 DMB/sed	ng/g	Whelan, Jean K	see reference(s)
19	2,3-Dimethylbutane per unit sediment mass	2,3 DMB/sed	ng/g	Whelan, Jean K	see reference(s)
20	2-Methylpentane per unit sediment mass	i-C6H14/sed	ng/g	Whelan, Jean K	see reference(s)
21	3-Methylpentane per unit sediment mass	3-Methylpentane/sed	ng/g	Whelan, Jean K	see reference(s)
22	n-Hexane per unit sediment mass	n-C6H14/sed	ng/g	Whelan, Jean K	see reference(s)
23	Methylcyclopentane per unit sediment mass	MCP/sed	ng/g	Whelan, Jean K	see reference(s)
24	2,2-Dimethylpentane per unit sediment mass	2,2 DMP/sed	ng/g	Whelan, Jean K	see reference(s)
25	Benzene per unit sediment mass	C6H6/sed	ng/g	Whelan, Jean K	see reference(s)
26	2,4-Dimethylpentane per unit sediment mass	2,4 DMP/sed	ng/g	Whelan, Jean K	see reference(s)
27	2,2,3-trimethylbutane per unit sediment mass	2,2,3-TMB/sed	ng/g	Whelan, Jean K	see reference(s)
28	Cyclohexane per unit sediment mass	C6H14/sed	ng/g	Whelan, Jean K	see reference(s)
29	3,3-Dimethylpentane per unit sediment mass	3,3 DMP/sed	ng/g	Whelan, Jean K	see reference(s)
30	1,1-Dimethylcyclopentane per unit sediment mass	1,1 DMCP/sed	ng/g	Whelan, Jean K	see reference(s)
31	2-Methylhexane per unit sediment mass	i-C7H16/sed	ng/g	Whelan, Jean K	see reference(s)
32	2,3-Dimethylpentane per unit sediment mass	2,3 DMP/sed	ng/g	Whelan, Jean K	see reference(s)
33	1,cis-3-Dimethylcyclopentane per unit sediment mass	1, cis-3 DMCP/sed	ng/g	Whelan, Jean K	see reference(s)	+ 3-Methylhexane
34	1 trans-3-Dimethylcyclopentane per unit sediment mass	1 trans-3 DMCP/sed	ng/g	Whelan, Jean K	see reference(s)
35	1 trans-2-Dimethylcyclopentane per unit sediment mass	1 trans-2 DMCP/sed	ng/g	Whelan, Jean K	see reference(s)
36	3-Ethylpentane per unit sediment mass	3-Ethylpentane/sed	ng/g	Whelan, Jean K	see reference(s)
37	n-Heptane per unit sediment mass	n-C7/sed	ng/g	Whelan, Jean K	see reference(s)
38	1,cis-2-Dimethylcyclopentane per unit sediment mass	1, cis-2 DMCP/sed	ng/g	Whelan, Jean K	see reference(s)
39	Methylcyclohexane per unit sediment mass	C7H14/sed	ng/g	Whelan, Jean K	see reference(s)
40	2,2-dimethylhexane per unit sediment mass	C8H18/sed	ng/g	Whelan, Jean K	see reference(s)
41	Ethylcyclopentane per unit sediment mass	C7H14/sed	ng/g	Whelan, Jean K	see reference(s)
42	2,5-Dimethylhexane per unit sediment mass	C8H18/sed	ng/g	Whelan, Jean K	see reference(s)
43	2,4-dimethylhexane per unit sediment mass	2,4-DMH/sed	ng/g	Whelan, Jean K	see reference(s)
44	Toluene per unit sediment mass	C6H5CH3/sed	ng/g	Whelan, Jean K	see reference(s)	#1 = small as determined by GCMS
45	1,1,3-trimethylpentane per unit sediment mass	1,1,3-TMP/sed	ng/g	Whelan, Jean K	see reference(s)
46	2,3,4-trimethylpentane per unit sediment mass	234TMP/sed	ng/g	Whelan, Jean K	see reference(s)
47	1,1,2-trimethylpentane per unit sediment mass	1,1,2-TMP/sed	ng/g	Whelan, Jean K	see reference(s)
48	1-cis-2-trans-4-trimethylcyclopentane per unit sediment mass	1C2T4TMCP/sed	ng/g	Whelan, Jean K	see reference(s)
49	1-cis-2-trans-3-trimethylcyclopentane per unit sediment mass	1C2T3TMCP/sed	ng/g	Whelan, Jean K	see reference(s)
50	3-Methylheptane per unit sediment mass	3-Mhept/sed	ng/g	Whelan, Jean K	see reference(s)
51	1,1-Dimethylcyclohexane per unit sediment mass	1,1-DMCH/sed	ng/g	Whelan, Jean K	see reference(s)
52	1-trans-4-dimethylcyclohexane per unit sediment mass	C8H16/sed	ng/g	Whelan, Jean K	see reference(s)
53	1-trans-2-dimethylcyclohexane per unit sediment mass	1T2DMCH/sed	ng/g	Whelan, Jean K	see reference(s)
54	1-cis-2-dimethylcyclohexane per unit sediment mass	1C2DMCH/sed	ng/g	Whelan, Jean K	see reference(s)
55	n-Octane per unit sediment mass	n-C8/sed	ng/g	Whelan, Jean K	see reference(s)
56	1-cis-2-dimethylcyclohexane per unit sediment mass	1C2DMCH/sed	ng/g	Whelan, Jean K	see reference(s)
57	Ethylbenzene per unit sediment mass	C8H10/sed	ng/g	Whelan, Jean K	see reference(s)	Or C8-cycloalkane
58	Cyclohexane per unit sediment mass	C6H14/sed	ng/g	Whelan, Jean K	see reference(s)
59	1,3-Dimethylcyclopentene per unit sediment mass	1,3-DMCP/sed	ng/g	Whelan, Jean K	see reference(s)
60	1,trans-2,cis-4-trimethylcyclopentane per unit sediment mass	C8H16/sed	ng/g	Whelan, Jean K	see reference(s)	Coelutes with toluene and was identified by GCMS
61	Carbon, organic, total	TOC	%	Whelan, Jean K	see reference(s)
62	Carbon, total	TC	%	Whelan, Jean K	see reference(s)
63	C1 hydrocarbons	C1	ng/g	Whelan, Jean K	see reference(s)
64	C2+C3 hydrocarbons per unit sediment mass	C2+C3/sed	ng/g	Whelan, Jean K	see reference(s)
65	C4-C7 hydrocarbons per unit sediment mass	C4 - C7/sed	ng/g	Whelan, Jean K	see reference(s)
66	C8 hydrocarbons per unit sediment mass	C8/sed	ng/g	Whelan, Jean K	see reference(s)

License:

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

Size:

1626 data points

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