/* DATA DESCRIPTION:
Citation:	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
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) (URI: https://www-odp.tamu.edu:443/)
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 (URI: https://www-odp.tamu.edu:443/resolutn.html) * 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 (URI: https://www-odp.tamu.edu:443/resolutn.html) * 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 (URI: https://www-odp.tamu.edu:443/resolutn.html) * METHOD/DEVICE: Drilling/drill rig (DRILL) * COMMENT: 13 cores; 115 m cored; 0 m drilled; 48.9 % recovery
Parameter(s):	Event label (Event)
	Sample code/label (Sample label) * PI: Repeta, Daniel J * METHOD/DEVICE: DSDP/ODP/IODP sample designation (URI: hdl:10013/epic.27914.d001)
	Sample mass [g] (Samp m) * PI: Repeta, Daniel J * COMMENT: dry weight
	beta-Carotene, beta,beta-Carotene, per unit sediment mass [µg/g] (bb-Car/sed) * PI: Repeta, Daniel J
	Astaxanthin, per unit sediment mass [µg/g] (Asta/sed) * PI: Repeta, Daniel J
	Canthaxanthin, per unit sediment mass [µg/g] (Cantha/sed) * PI: Repeta, Daniel J * COMMENT: # = traces
	Diatoxanthin, per unit sediment mass [µg/g] (Diato/sed) * PI: Repeta, Daniel J
License:	Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/)
Size:	85 data points
*/
Event	Sample label	Samp m [g]	bb-Car/sed [µg/g]	Asta/sed [µg/g]	Cantha/sed [µg/g]	Diato/sed [µg/g]
112-679C	112-679C-2H-5,11-12	3.94	28.00	2.10	1.70	1.50
112-679C	112-679C-3H-6,3-4	6.18	30.40	3.20	2.20	1.34
112-679C	112-679C-4H-6,54-55	6.03	6.50	1.50	0.90	0.83
112-679C	112-679C-5H-1,104-105	6.40	13.60	3.60	2.20	0.96
112-679C	112-679C-6H-1,32-33	1.47	8.00	9.10	4.70	
112-679C	112-679C-7H-2,116-117	5.48	1.30	1.10	0.60	0.14
112-679C	112-679C-8H-1,12-13	5.58	1.30	1.60	0.60	
112-681C	112-681C-1H-3,11-11.5	1.11	54.10		#0.00	
112-681C	112-681C-2H-5,103-103.5	0.92	45.40	0.40		0.18
112-681C	112-681C-3H-6,17.5-18.0	1.46	57.40	2.80	0.66	1.10
112-681C	112-681C-4H-2,110-110.5	0.76	30.90	0.26	0.14	
112-681C	112-681C-5H-2,50-50.5	2.45	0.90	0.19	0.04	0.02
112-681C	112-681C-9H-4,21-21.5	7.59				
112-681C	112-681C-10H-3,0-0.5	2.16	0.67	0.62	0.11	
112-684C	112-684C-1H-3,50-51	2.01	48.20	12.90	6.00	19.00
112-684C	112-684C-12X-2,21-27	3.03	0.12	5.40	0.60	5.40