Molecular organic geochemistry of ornithogenic sediment from Svalbard, Arctic

The molecular biomarker compositions of the ornithogenic sediments (YN), from Svalbard, Arctic were investigated. The results showed that n-alkanes had a bimodal pattern and their odd-even preference was not obvious. The alkanes contained unresolved complex mixtures (UCM) and relatively high levels of pristine and retene, indicating pollution from the nearby coal mines. The n-alkanols in the sediments had even-to-odd preference, and they might originate mainly from modern biota. Sistosterol, the main sterol in herbivores feces, was the dominant sterol, indicating that sitosterol might be a good biomarker of input from the birds feces in the sediments. The fatty acids of the sediments showed acid. The α-hydroxyl acids and ω-hydroxyl fatty acids were also detected in the sediments. In summary, the organic matters in the YN sediments were from the adjacent coal mines, bird feces, and plants.

作 者： Wang Jianjun Sun Liguang   作者單位： Wang Jianjun(Institute of Polar Environment, University of Science and Technology of China, Hefei 230026, China;Key Laboratory of Global Change and Marine-Atmospheric Chemistry, TIO, SOA, Xiamen 361005, China)

Sun Liguang(Institute of Polar Environment, University of Science and Technology of China, Hefei 230026, China) 

刊 名： 極地研究（英文版）  英文刊名： CHINESE JOURNAL OF POLAR SCIENCE  年，卷(期)： 2009 20(1)  分類號： P4  關鍵詞： Arctic   Ornithogenic Sediment   biomarkers   sitosterol   alkanols   fatty acids