The substance composition of sterols in the sediments from the Chukchi Sea,the Bering Sea and global climatic significance

作     者：卢冰 扈传昱 潘建明 薛斌 姚梅 

作者机构：Laboratory of Marine Ecosystem and Biogeochemistry State Oceanic Adminastration Hangzhou 310012 China 

出 版 物：《Chinese Journal of Polar Science》 (极地研究（英文版）)

年 卷 期：2006年第17卷第1期

页      面：9-19页

学科分类：070704[理学-海洋地质] 07[理学] 0707[理学-海洋科学] 

基　　金：Thank team members of Chinese First Arctic Research Expedition for their collecting and providing sediment samples 

主　　题：the Chukchi Sea the Bering Sea biological indicator sterols substance composition. 

摘      要：The compounds of sterols such as C27 ,C2s ,C29 and C30 are recorded from C-8 core of the Chukchi Sea. The double bond position is located at 5-, 5,22 as well as 22-,24-. The compound of sterols such as C27 ,C28 ,C29 are recorded from B2-9 core of the Bering Sea. The double bond position is located at 5-, 5, 22 as well as 22. The composition characteristics of sterols indicate that the substance is mainly contributed by the terrigenous origin and marine silicate organisms. The results are also suggest that the record of abnormal sterols from the surface sediments （2 -0 era）in the Chukchi Sea and the Bering Sea represent the period from 1980s to the late 1990s. The strong signal of the Arctic warming is preserved in the sediments, which indicates the eco - environmental change responding to climatic effect of circumjacent.