Repeta Daniel J 1990 Concentrations of beta-carotene, astaxanthin, canthaxanthin, and diatoxanthine of ODP Leg 112 samples (Table 2) dataset https://doi.org/10.1594/PANGAEA.753777 Repeta Daniel J 1990 Carotenoid diagenesis in Pleistocene to Miocene sediments from the Peru Margin book chapter In: Suess, E; von Huene, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program) 112 https://doi.org/10.2973/odp.proc.sr.112.157.1990 567-572 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. -79.95582999999999 -77.95767000000001 -11.0635 -8.9915 -78.72855666666663 -10.343886666666668 1986-11-01T07:00:00 1986-11-22T08:45:00 -458.0 -162.0 ODP Ocean Drilling Program https://www-odp.tamu.edu:443/ Ocean Drilling Program, Texas A&M University ODP http://www-odp.tamu.edu/ https://ror.org/01f5ytq51 112-679C -11.0635 -78.27217 South Pacific Ocean -458.0 1986-11-01T07:00:00 1986-11-01T12:45:00 Leg112 Leg112 1986-10-20T00:00:00 1986-10-20 1986-12-25T00:00:00 1986-12-25 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Suess, Erwin Suess, Erwin von Huene, Roland von Huene, Roland doi:10.2973/odp.proc.ir.112.1988 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 75.5 m 69.78 m 8 cores; 75.5 m cored; 0 m drilled; 92.4 % recovery 112-681C -10.97666 -77.95767 South Pacific Ocean -162.0 1986-11-08T13:15:00 1986-11-08T18:00:00 Leg112 Leg112 1986-10-20T00:00:00 1986-10-20 1986-12-25T00:00:00 1986-12-25 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Suess, Erwin Suess, Erwin von Huene, Roland von Huene, Roland doi:10.2973/odp.proc.ir.112.1988 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 91.4 m 86.24 m 10 cores; 91.4 m cored; 0 m drilled; 94.4 % recovery 112-684C -8.9915 -79.95583 South Pacific Ocean -438.0 1986-11-21T20:30:00 1986-11-22T08:45:00 Leg112 Leg112 1986-10-20T00:00:00 1986-10-20 1986-12-25T00:00:00 1986-12-25 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Suess, Erwin Suess, Erwin von Huene, Roland von Huene, Roland doi:10.2973/odp.proc.ir.112.1988 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL 115 m 56.23 m 13 cores; 115 m cored; 0 m drilled; 48.9 % recovery 85 CC-BY-3.0 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/ Event label Event Event Sample code/label Sample label DSDP/ODP/IODP sample designation hdl:10013/epic.27914.d001 Repeta Daniel J Sample label Sample mass Samp m g Mass M http://dbpedia.org/resource/Mass Repeta Daniel J dry weight Samp m [g] beta-Carotene, beta,beta-Carotene, per unit sediment mass bb-Car/sed µg/g hdl:10013/epic.32183.d001 beta-carotene http://purl.obolibrary.org/obo/CHEBI_17579 Repeta Daniel J bb-Car/sed [µg/g] Astaxanthin, per unit sediment mass Asta/sed µg/g astaxanthin http://purl.obolibrary.org/obo/CHEBI_40968 Repeta Daniel J Asta/sed [µg/g] Canthaxanthin, per unit sediment mass Cantha/sed µg/g canthaxanthin http://purl.obolibrary.org/obo/CHEBI_3362 Repeta Daniel J # = traces Cantha/sed [µg/g] Diatoxanthin, per unit sediment mass Diato/sed µg/g diatoxanthin https://pubchem.ncbi.nlm.nih.gov/compound/6440986 Repeta Daniel J Diato/sed [µg/g] supplement citable author34261 basis5 campaign3397801 campaign84 event13372 event13380 event13386 geocode1599 geocode1600 geocode1601 geocode8128 inst34 license101 method10974 method5059 param4914 param7010 param790 param91503 param94025 param94026 pi34261 project3 ref33020 term1074139 term1074142 term21005 term2577225 term39255 term43892