Concentrations of beta-carotene, astaxanthin, canthaxanthin, and diatoxanthine of ODP Leg 112 samples (Table 2), supplement to: Repeta, Daniel J (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

Daniel J Repeta
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...
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