摘要
研究了西伯利亚、东欧及阿拉伯板块的上元古界原油的物理-化学性质及烃类组分。现已查明,前寒武纪原油除了具有显生宙原油的许多特点外,还具有一些特殊的特性。所研究的前寒武纪原油富含^(12)C轻质同位素。主要含脂肪族成分,其中正构烷烃占主导地位。根据西伯利亚地台原油中所含的烃类生物标志化合物的成分,将其划分为4组,其中2组在东欧地台和阿拉伯地台也是相似的。这些原油的差异与前寒武纪海洋中局部生态凹地中最古老的原核生物脂类和最简单的真核生物脂类的特殊生物化学有关。
The physical and chemical properties and the hydrocarbon compositions of Epiproterozoic crude oils in Siberian, East European and Arabian plates are studied. It is found that the Precambrian crude is of some special features besides natures of phanerobiotic crude, that is, it contains abundant ^12C light isotope, and in its aliphatic composition dominates normal paraffin hydrocarbons. According to hydrocarbon biomarker composition of crude in Siberian platform, the crude can be divided into four groups, of which two groups are also found in East European and Arabian platforms. The study shows that the difference of crude properties among these platforms is related to the most primary prokaryote lipoid in local ecologic sag of Precambrian ocean and the simplest eukaryote lipoid in biochemistry.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2005年第5期594-604,共11页
Xinjiang Petroleum Geology
