Molecular organic geochemistry of or

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(guān)鍵詞： Arctic   Ornithogenic Sediment   biomarkers   sitosterol   alkanols   fatty acids