Citation:

0146-6380(92)90131-G

Name: Chromatographic fractionation of bitumen from sediments and presence of glycerol ethers in immature sediments (Table 2)
Published: 1992
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Alkanes having unusual saturated isoprenoidal and methyl-branched structures have been isolated from the bitumen of several sediments. The methanogenic biomarkers 2,6,10,15,19-pentamethyleicosane and squalane were found in sediments which also contained bacteriogenic glycerol ethers. However, in one ether-containing sediment, 2,6,10,13,17,21-hexamethyldocosane was tentatively identified and this compound was found in place of the established alkane biomarkers. Other hydrocarbons found were regular C21 and C23 isoprenoid alkanes, compounds which cannot be derived from phytol; two isoprenoids of the type 3,7,11…-polymethylalkane, previously reported only in petroleums; 8-methylheptadecane, a probable biomarker for cyanobacteria and a number of its homologs and other methyl-branched alkanes. Ubiquitous branched-chain alkylbenzenes and a homology of trimethylalkylbenzenes were also isolated. Most, or all, of the compounds reported here are probably not catagenetic products but may represent direct algal or bacterial bioinputs.

Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Median Latitude: 36.298200 * Median Longitude: 143.576480 * South-bound Latitude: 23.708000 * West-bound Longitude: 29.613700 * North-bound Latitude: 42.099000 * East-bound Longitude: -84.516200

Date/Time Start: 1975-05-30T00:00:00 * Date/Time End: 1980-12-29T00:00:00

Minimum DEPTH, sediment/rock: 70 m * Maximum DEPTH, sediment/rock: 979 m

Event(s):

42-380 * Latitude: 42.099000 * Longitude: 29.613700 * Date/Time: 1975-05-30T00:00:00 * Elevation: -2107.0 m * Penetration: 370.5 m * Recovery: 168.3 m * Location: Black Sea * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 38 cores; 357 m cored; 13.5 m drilled; 47.1 % recovery

42-380A * Latitude: 42.099000 * Longitude: 29.613700 * Date/Time: 1975-05-30T00:00:00 * Elevation: -2107.0 m * Penetration: 1083 m * Recovery: 422 m * Location: Black Sea * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 78 cores; 727.5 m cored; 19 m drilled; 58 % recovery

57-440B * Latitude: 39.735500 * Longitude: 143.929000 * Date/Time: 1977-11-10T00:00:00 * Elevation: -4509.0 m * Penetration: 814 m * Recovery: 402.3 m * Location: North Pacific/TRENCH * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 71 cores; 674.5 m cored; 0 m drilled; 59.6 % recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Sample code/label	Sample label		Vella, Alfred J	DSDP/ODP/IODP sample designation
3	DEPTH, sediment/rock	Depth sed	m			Geocode
4	Epoch	Epoch		Vella, Alfred J
5	Lithology/composition/facies	Lithology		Vella, Alfred J
6	Carbon, organic, total	TOC	%	Vella, Alfred J
7	Organic matter, extractable of total organic carbon	EOM ex/TOC	mg/g	Vella, Alfred J
8	Hexane	n-C6	%	Vella, Alfred J
9	Benzene	C6H6	%	Vella, Alfred J
10	Chloroform extract	Chlf	%	Vella, Alfred J
11	Methanol	CH4O	%	Vella, Alfred J
12	Glycerol ethers	Glyc ether		Vella, Alfred J		+ = present, - = absent

License:

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

Size:

100 data points

Data

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

1 Event	2 Sample label	3 Depth sed [m]	4 Epoch	5 Lithology	6 TOC [%]	7 EOM ex/TOC [mg/g]	8 n-C6 [%]	9 C6H6 [%]	10 Chlf [%]	11 CH4O [%]	12 Glyc ether
42-380	42-380-19-5	178	Pleistocene	calcareous mudstone	0.80	262	2.7	1.5	0.8	95.0	+
42-380	42-380-53-4	821	Pliocene	calcareous marl	2.00	225	2.2	16.0	1.8	80.0	+
42-380A	42-380A-70-1	979	Upper Miocene	dolomitic shale	1.10	148	3.1	6.7	2.2	88.0	+
57-440B	57-440B-3-5	166	Lower Pleistocene	claystone	0.98	171	3.4	8.4	5.1	83.1	+
57-440B	57-440B-68-2	779	Upper Miocene	diatom clay	1.00	156	5.2	4.1	27.0	63.7	+
63-467	63-467-8-5	70	Quaternary	diatom clay	1.90	170	1.6	5.4	3.4	89.6	+
63-467	63-467-13-4	116	Late Pliocene	calcareous clay	3.70	148	1.0	5.9	2.8	90.3	+
63-467	63-467-41-4	381	Early Pliocene	nannafossil clay	3.00	75	1.5	7.6	2.0	88.9	+
63-467	63-467-97-2	911	Middle Miocene	calcareous clay	2.42	165	3.0	13.5	6.5	77.0	+
77-535	77-535-66-2	600	Lower Cretaceous	argill. limestone	2.69	100	4.0	8.7	1.5	85.8	-