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Lipid biomarkers of microorganism and vegetation preserved in penguin droppings record historical changes in the West Antarctic climate and environment. n-Alkanes, fatty acids and coprostanols have been determined in sediment core AD6 from penguin droppings in Ardley Island, West Antarctica, using GC or GC/MS/SIM. For n-alkanes, the main carbon number was nC 23 with single-peak pattern, ΣC...
The diatom flora in a 164 cm long sediment core obtained from Jiaozhou Bay (Yellow Sea, China) was analyzed in order to trace the response of diatoms to environmental changes over the past 100 years. The sediment core was dated by 210 Pb and 137 Cs and represented approximately 100 years (1899–2001 A.D.). The flora was mainly composed of centric diatoms (59–96%). The concentration...
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