沉积学报2012，Vol.30Issue(5)：983-990,8.
柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究
Carbon and Hydrogen Isotopic Composition of Individual n-Alkanes for Crude Oil from North Margin of Qaidam Basin
摘要
Abstract
Using GC/C/MS on-line carbon isotope analysis technique, we obtained the carbon and hydrogen isotopic composition of individual n-alkanes for crude oil from different tectonic belts of the north margin of Qaidam Basin. The carbon and hydrogen isotopic composition of n-alkanes for crude oil samples can be used to analyze genetic type of crude oil and oil-source correlation. The analytical results indicate that the 8t3C and 8D values of n-alkanes in soluble organic matter ranging between -36%0--25%0 and -180%o ~-110%o, respectively. Through comparing, it is found that there exist significant differences between the carbon and hydrogen isotopic composition of n-alkanes for crude oil from different tectonic belts. By the combination of ~13Cn.alk (-30%0), 8Dn.,lk (-140%o), and distribution pattern isotopic curve, the carbon and hydrogen isotopic composition can be divided into different distribution patterns. Using these patterns can discriminate hydrocarbon ~eneration material and sedimentary anvlranrnant关键词
单体正构烷烃/碳同位素/氢同位素/生物标记化合物/柴达木盆地北缘Key words
n-alkanes/carbon isotopes/hydrogen isotopes/biological markers/north margin of Qaidam Basin分类
天文与地球科学引用本文复制引用
张明峰,妥进才,吴陈君,张小军,郭力军..柴达木盆地北缘原油中单体正构烷烃的碳、氢同位素组成研究[J].沉积学报,2012,30(5):983-990,8.基金项目
国家自然科学基金项目 （）
中科院重要方向项目 （）
中科院“西部之光”人才培养西部博士项目联合资助. （）
