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Sulphur can influence the carbon isotopes of gaseous hydrocarbon. 单质硫还会影响气态烃碳同位素组成。
The cracking gas from oil is very different from the cracking gas from kerogen in components and carbon isotopes. 原油二次裂解生成的天然气与干酪根初次裂解生成的天然气在组分特征和碳同位素特征上存在明显的差异。
TSR is also a reason for the partial reversal trend of carbon isotopes in some regions. 同时，在局部地区硫酸盐热还原（TSR）也可引起碳同位素组成的局部倒转。
A more promising technique for early detection focuses on changes in carbon isotopes in carbon dioxide. 有一种较被看好的预先侦测技术，是以二氧化碳中碳同位素的变化做为分析重点。
With the development in modern testing and analyzing techniques, carbon isotopes have been used widely in oil and gas geochemistry. 随着现代分析测试技术的提高,碳同位素在油气地球化学中的应用也越来越广泛。
On the basis of gas ingredients and carbon isotopes, the carbondioxide gas in Jiyang basin is from mantle volcanic magma. 根据二氧化碳气田气体组分和碳同位素分析，认为济阳坳陷二氧化碳气的成因为幔源-火山岩浆型。
The oils in Guantao Formation of this area have been classified based on the analysis of carbon isotopes of group composition and the biomarkers. 应用族组成碳同位素和生物标志化合物相结合的分析方法,对该区馆陶组的原油进行了分类,并进行了精细油源对比。
In this paper, method of quantity calculation of mixed|source natural gas is established based on composition and carbon isotopes of methane and ethane. 利用天然气中甲烷和乙烷的组成及碳同位素值,建立了不同来源天然气混合的定量计算方法。
They are characterized by different characters of component, carbon isotopes, light hydrocarbons and the different distribution regions and series of strata. 不同类型的天然气，其组分、碳同位素和轻烃特征各异，并且分布区域和层系也表现出差异性。
And by measuring the carbon isotopes in French fries, University of Hawaii researchers found that one oil tops all others as the choice to fry fries in: corn oil. 夏威夷大学的科学家测量了炸薯条中的碳同位素，发现有一种油的出镜率遥遥领先：玉米油。
On the basis of analysising chemical composition, carbon isotopes of natural gases and inclusions in volcanic rock, the authors discover that abiogenic natural gases exist in Xujiaweizi area. 通过对徐家围子地区天然气组分、同位素资料以及气体包裹体资料的综合分析认为，该地区存在无机成因天然气。
The oxygen and carbon isotopes in biogenic carbonate have been extensively used in paleoclimate and paleoenvironment studies. 生物壳体碳酸盐的稳定氧、碳同位素已经被大量地应用在古气候、古环境研究中。
Based on analysing the chemical composition and carbon isotopes of natural gases,mult-genetic gases have been founded in Changde gas field,such as organic gases and inorganic gases. 通过对昌德气田中天然气的化学组分和碳同位素的分析发现，该区天然气的成因类型很复杂，既有有机成因天然气，又有无机成因天然气。
These neutrons react with nitrogen nuclei, giving out a proton and producing the active carbon isotope 14. 这些中子跟氮元素的核子产生反应，释放出一个质子并产生出活性碳同位素14。
Methane and ethane carbon isotopes are clearly heavier, especially ethane carbon isotope shows that it is characteristic of the coal? 甲、乙烷碳同位素值明显偏重 ,尤其是乙烷碳同位素值反映其为煤成气的特征。
stable oxygen and carbon isotopes 碳氧同位素
These neutrons react with nitrogen nuclei,giving out a proton and producing the active carbon isotope 14. 这些中子跟氮元素的核子产生反应，释放出一个质子并产生出活性碳同位素14。
The carbon isotopic age by 14C of Krish cultural layer of this settlement is about 6650+50 y. BP or 5600-1480 y. 这些地区Krish文化层的~(14)C同位素年代为6650+/-50年,或者公元前5600-1480年。
Carbon isotope techniques can be used to study the allocation and turnover of recently photosynthesized C. 植物近期光合C分结构性C和代谢C；
Its methane carbon isotope is heavier than -40‰ , ethane carbon isotope is heavier than -28‰ . 其甲烷碳同位素值均大于-40‰,乙烷碳同位素值大于-28‰。