Repeta, Daniel J (1990): Concentrations of beta-carotene, astaxanthin, canthaxanthin, and diatoxanthine of ODP Leg 112 samples (Table 2) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.753777, Supplement to: Repeta, DJ (1990): Carotenoid diagenesis in Pleistocene to Miocene sediments from the Peru Margin. In: Suess, E; von Huene, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 112, 567-572, https://doi.org/10.2973/odp.proc.sr.112.157.1990
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Published: 1990 (exact date unknown) • DOI registered: 2010-12-15
Abstract:
The quantitative distribution of carotenoids in sediments of Pleistocene to Miocene age from the Peru upwelling area is reported. Major pigments include beta-carotene, diatoxanthin, caroteno-3,3'-diols from phytoplankton, astaxanthin and canthaxanthin from crustaceans, and spheroidenone from bacteria. beta-carotene epoxides are major consituents, representing transformation products in the degradation of beta-carotene to low molecular weight compounds. The absolute abundance of carotenoids reflects bottom-water oxicity at the time of deposition; highest concentrations of carotenoids were observed in laminated muds deposited within the oxygen-minimum zone, with reduced or negligible concentrations of pigments observed in bioturbated sequences deposited during periods of well-oxygenated bottom water. beta-carotene, the most abundant pigment in recently deposited sediments, slowly degrades through a sequence of transformation reactions initiated by epoxidation. The 4,4' dioxo-carotenoids, which are unable to form 5,6-epoxides, have been preferentially preserved in these sediments.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -10.343887 * Median Longitude: -78.728557 * South-bound Latitude: -11.063500 * West-bound Longitude: -79.955830 * North-bound Latitude: -8.991500 * East-bound Longitude: -77.957670
Date/Time Start: 1986-11-01T07:00:00 * Date/Time End: 1986-11-22T08:45:00
Minimum Elevation: -458.0 m * Maximum Elevation: -162.0 m
Event(s):
112-679C * Latitude: -11.063500 * Longitude: -78.272170 * Date/Time Start: 1986-11-01T07:00:00 * Date/Time End: 1986-11-01T12:45:00 * Elevation: -458.0 m * Penetration: 75.5 m * Recovery: 69.78 m * Location: South Pacific Ocean * Campaign: Leg112 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 75.5 m cored; 0 m drilled; 92.4 % recovery
112-681C * Latitude: -10.976660 * Longitude: -77.957670 * Date/Time Start: 1986-11-08T13:15:00 * Date/Time End: 1986-11-08T18:00:00 * Elevation: -162.0 m * Penetration: 91.4 m * Recovery: 86.24 m * Location: South Pacific Ocean * Campaign: Leg112 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 91.4 m cored; 0 m drilled; 94.4 % recovery
112-684C * Latitude: -8.991500 * Longitude: -79.955830 * Date/Time Start: 1986-11-21T20:30:00 * Date/Time End: 1986-11-22T08:45:00 * Elevation: -438.0 m * Penetration: 115 m * Recovery: 56.23 m * Location: South Pacific Ocean * Campaign: Leg112 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 13 cores; 115 m cored; 0 m drilled; 48.9 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | Repeta, Daniel J | DSDP/ODP/IODP sample designation | ||
| 3 | Sample mass | Samp m | g | Repeta, Daniel J | dry weight | |
| 4 | beta-Carotene, beta,beta-Carotene, per unit sediment mass | bb-Car/sed | µg/g | Repeta, Daniel J | ||
| 5 | Astaxanthin, per unit sediment mass | Asta/sed | µg/g | Repeta, Daniel J | ||
| 6 | Canthaxanthin, per unit sediment mass | Cantha/sed | µg/g | Repeta, Daniel J | # = traces | |
| 7 | Diatoxanthin, per unit sediment mass | Diato/sed | µg/g | Repeta, Daniel J |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
85 data points