| 盐湖相低熟油脂肪酸的组成与分布特征 |
| |
| 引用本文： | 张松林,崔明中,李振西,王有孝,范璞.盐湖相低熟油脂肪酸的组成与分布特征[J].沉积学报,1999,17(1):130-155. |
| |
| 作者姓名： | 张松林 崔明中 李振西 王有孝 范璞 |
| |
| 作者单位： | 1.西北师范大学地理系,兰州 730070; |
| |
| 摘 要： | 对泌阳凹陷碱性盐湖相、舞阳凹陷盐湖相、襄城凹陷膏盐湖相、南阳凹陷淡水湖相低熟油脂肪酸组成和分布特征进行了分析与研究。结果表明这些不同盐湖相的低熟原油的脂肪酸为丰度不同的饱和正构酸、不饱和正构酸、少量异构酸、类异戊二烯酸及脂肪酸乙酯系列化合物。脂肪酸的组成和分布反映了原始有机质的来源。
|
| 关 键 词： | 低熟油 脂肪酸 脂肪酸乙脂 盐湖相 |
| 收稿时间： | 1998-11-11 |
| 修稿时间： | 1998-11-11 |
Composition and Distribution Features of Fatty Acids in Salt-Lake Immature Oils |
| |
| Zhang Songlin,Cui Mingzhong,Li Zhenxi,Wang Youxiao,Fan Pu.Composition and Distribution Features of Fatty Acids in Salt-Lake Immature Oils[J].Acta Sedimentologica Sinica,1999,17(1):130-155. |
| |
| Authors: | Zhang Songlin Cui Mingzhong Li Zhenxi Wang Youxiao Fan Pu |
| |
| Institution: | 1.Department of Geography,Northwest Normal University,Lanzhou 730070;2.Lanzhou Institute of Geology,Chinese Academy of Sciences,Lanzhou 730000 |
| |
| Abstract: | The relative high abundance and important hydrocabon-generating potentiality of fatty acids in geological bodios make it necessary to investigate the composition、distrbution and presence of fatty acids in various geological bodies.The composition and distribution features of fatty acids in immature oils of diferent sedimentary environments,sach the alkaline salt lake facies in the Migang depression, Halite salt lake facies in the Wayang depression,ggpsum salt lake facies in the Xiangcheng depression and fresh water lake facies in the Nanyang depression were analysed and investigated. As a result,the fatty acids in immature oils of various salt tale depressions are compased of saturated n-fatty acids,unsaturated n-fatty acids,branched fatty acids, isoprenoid fatty acids and fatty acid ethyl eslers with different abundances The carbon number of fatty acids is between C12 to C30 major at C16 and C18 and the short-chain homologumes are predominant with a strong even／odd predommance,The unsaturated n-fatty acids are mainly composed of C16:1△9 C18:1△9 and C18:1△11 fatty acids,and the UFA／TFA values ranged between 0.013 to 0.091(average values:0.042).The branched fatty acids are composed of C15、C17 iso-anteiso-fatty acids and C14～C21 isoprenoid fatty acids (except for C18).Thes results and the low C16／C18、C18:1 values indicate that the source materials of the immature oils are mainly bacteria、algae and the bacteriol alternated products of higher plants and aquaticorganisms.Thas,the composition and distribution features of fatty acids in immature oils can be used to explain the sources of primary organic matter in these various deperssions.On the other hand,the C11～C25 ethyl esters of fatty acids with laoer even／odd prodominance fourd in various sedimentary environments clemonstrate that the fatty acids can present as esters in geological bodies. |
| |
| Keywords: | immature oil fatty acids ethyl ester of fatty acid salt lake facies |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《沉积学报》浏览原始摘要信息 |
| 点击此处可从《沉积学报》下载免费的PDF全文 |
|
