Citation:

dsdp.proc.61.119.1981

Name: (Table 1) Sample description, carbon and tetrapyrrole pigments at DSDP Hole 61-462
Published: 1981
License: https://creativecommons.org/licenses/by/3.0/

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Published: 1981 (exact date unknown) • DOI registered: 2013-10-29

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Abstract:

Six core-samples from DSDP/IPOD Site 462 in the Central Nauru Basin were examined for tetrapyrrole pigment content. Samples ranged from Pliocene to middle Cretaceous, and were recovered from 25 to 551 meters sub-bottom.

The fate of chlorophyll in an open ocean environment was to be the prime objective of this study. Leg 61 is viewed as an extension of tetrapyrrole pigment studies in the western and southwestern Pacific which included the Japan Trench sites of Legs 56-57 (Louda et al., in press; Baker and Louda, in press a), the Shikoku Basin and Daito Ridge sites of Leg 58 (Baker and Louda, 1980), and the Mariana Basin and Trench sites of Leg 60 (Baker and Louda, in press b). Throughout these studies, we have detected tetrapyrrole pigments which by their quantity and quality could be related to the overall productivity of overlying waters, depositional environments, and certain geologic events, such as reworking. The more-oceanic position of Site 462 and suspected turbidite deposition in the deep ocean basin in which it is situated seemed favorable for relating rate of pigment loss to oxic diagenesis.

Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Latitude: 7.237500 * Longitude: 165.030500

Date/Time Start: 1978-05-28T00:00:00 * Date/Time End: 1978-05-28T00:00:00

Minimum DEPTH, sediment/rock: 25.0 m * Maximum DEPTH, sediment/rock: 550.5 m

Event(s):

61-462 * Latitude: 7.237500 * Longitude: 165.030500 * Date/Time: 1978-05-28T00:00:00 * Elevation: -5181.0 m * Penetration: 617 m * Recovery: 386 m * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 70 cores; 627.4 m cored; 0 m drilled; 61.5 % recovery

Comment:

Sediment depth is given in mbsf. Empty cells mean no data.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Sample code/label	Sample label		Baker, Earl W	DSDP/ODP/IODP sample designation
2	DEPTH, sediment/rock	Depth sed	m			Geocode
3	Stage	Stage		Baker, Earl W
4	Lithology/composition/facies	Lithology		Baker, Earl W
5	Carbon, organic, total	TOC	%	Baker, Earl W		From DSDP on-shore laboratory results for sediment size, carbon/carbonate; nearest sample.
6	Carbon, organic, total	TOC	%	Baker, Earl W		From Phillips Petroleum, Bartlesville, Oklahoma (K. S. Schorno); same sample.
7	Compounds	Comp		Baker, Earl W		Tetrapyrrole pigments; Free-base porphyrin detected by acid extraction and dication fluorescence. (Limit of detection: 5 ppb with 100-g sample size)

License:

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

Size:

35 data points

Data

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

1 Sample label	2 Depth sed [m]	3 Stage	4 Lithology	5 TOC [%] (From DSDP on-shore laboratory...)	6 TOC [%] (From Phillips Petroleum, Bart...)	7 Comp (Tetrapyrrole pigments; Free-b...)
61-462-3-4	25.0	Pleistocene/Pliocene	Yellow-brown radiolarian ooze	0.133	0.16	None
61-462-7-5	64.5	Upper Pliocene	Gray-white nannofossil-foraminiferal ooze	0.034	0.07	None
61-462-17-4	158.0	Lower Miocene	Gray-orange nannofossil ooze	0.032		None
61-462-49-4	462.0	Maestrichtian	Greenish black siltstone-limestone	0.048	0.19	None
61-462-54-2	511.0	Campanian	Light olive-gray limestone	0.030	0.07	Trace, free-base porphyrin
61-462-59-1	550.5	Middle Cretaceous	Pale brown zeolitic mudstone	0.032	0.04	None