The carbon isotope value distribution of ethane in the Tarim Basin.
图4塔里木盆地天然气乙烷碳同位素分布图fig。
Cracked gas in high-temperature causes methane carbon isotope to heavy.
高温裂解气的生成造成甲烷碳同位素变重的假象。
Carbon isotope in soil carbonates is an important paleoclimate data carrier.
土壤碳酸盐中碳稳定同位素是记录古气候变化信息的重要载体。
The composition of carbon isotope has the characteristics of carbon of deep seated source.
在碳同位素组成上具深源碳特征。
Carbon isotopes show a pattern, but it is somewhat more difficult to interpret than the oxygen isotope pattern.
碳同位素显示的格局，但它是较为困难的解释比氧同位素模式。
The isotope tracer method presents the advanced method of carbon isotope, nitrogen isotope, oxygen isotope and Pb tracer.
同位素示踪法着重阐述了较先进的碳、氮、氧和铅同位素的示踪。
The gases are characterized by rich light carbon isotope in methane and rich heavy carbon isotope in heavy hydrocarbons (C_2, -C_4).
该区的煤成气以甲烷碳同位素偏轻、重烃气体碳同位素偏重为特征；
According to analysis of natural gas ingredient and CH4 carbon isotope, it is proven that the natural gas of this area is superficial.
根据天然气成分分析和CH4碳同位素资料，论证了该区天然气为浅层天然气。
The wax content of the crude oil is high, its methane carbon isotope could be reversed, indicating its multi-stage pool-forming origin.
油气藏含蜡量高，甲烷碳同位素具反转现象，说明其为多期成藏的产物。
The carbon isotope shifts during Upper Permian in the South China drop gradually, and such phenomena may correspond to sea level change.
华南晚二叠世的碳同位素变化曲线是逐渐降低的，与全球海平面变化趋势相一致。
The value of carbon isotope in coalbed methane (CBM) helps depict some useful information related to CBM gas pool forming and development.
煤层气甲烷碳同位素值记录了煤层气成藏和开发过程中的一些有用信息。
And as growing grapes absorb carbon dioxide, they take in trace amounts of the heavier carbon isotope-which eventually show up in the wine.
生长中的葡萄会吸收二氧化碳，也就会吸收微量质量更重的碳同位素，这种吸收最终会在酒中表现出来。
Authigenic carbonate oxygen and carbon isotope evidence in lake sediment is an important proxy to reflect lake environment and climatic change.
湖泊自生碳酸盐碳氧同位素变化是反映内陆湖泊水环境与气候环境的重要指标。
They are different from each other in toluene contents, the carbon isotope composition of ethane and the nitrogen and mercury vapor contents, etc.
二者在甲苯、乙烷的碳同位素组成，氮气和汞蒸气含量等方面存在着一定的差异。
Stable carbon isotope analysis is a rapid and reliable technique developed in recent years and may reveal many processes of carbon dynamics in plants.
植物稳定碳同位素技术是近年兴起的一项快速、可靠的技术。
The application value of traditional method to explore the oil and gas source using carbon isotope was bounded by the type and maturity of source rock.
利用气体碳同位素探索油气来源的传统方法由于受源岩类型、源岩成熟度等因素的影响，其实际应用受到很大的限制。
A study of 16 dinosaur eggshell fossils in the Late Cretaceous from Xixia Basin, Henan Province, using microscopic and carbon isotope method has been made.
利用显微镜和碳同位素分析法对采自河南西峡盆地晚白垩世的16枚恐龙蛋化石进行了研究。
The environment change reflected by authigenic oxygen and carbon isotope coincides with the environment change in north of China and China sea in the same period.
安固里淖自生碳酸盐碳氧同位素反映的环境变化与我国北方地区的全新世环境以及海平面的变化基本一致。
The research of carbon isotope of methane has important significance for the clarification and origin of the coal-formed gas as well as for the resource estimation.
甲烷碳同位素的研究对煤成气的分类、成因及资源评价均有重要意义。
A naturally radioactive carbon isotope with atomic mass 4 and half-life 5,780 years, used in determining the age of ancient organic, geologic, or archaeological specimens.
一种碳的天然放射性同位素，原子量为4，半衰期为5，780年，用于测定古代生物标本，地质标本或考古遗迹的标本的年代。
The carbon isotope correlation between ethane in the natural gases and source rock kerogens shows that the gases in the reservoirs were mainly derived from Permian strata.
天然气乙烷碳同位素与各层系烃源岩干酪根碳同位素值对比结果揭示普光气田天然气主要来自二叠系烃源层。
The malleabilities of various types of gas are discussed in this paper according to the carbon isotope characteristics of the gas in reservoir and gas from gas source rock.
文中还通过储层中的天然气与气源岩生成天然气之碳同位素特征的分析对比，对各类天然气的展布特征进行了探讨。
Hydrocarbon source rocks by carbon isotope analysis results showed that with the increase of carbon isotope, ethane maturity turns heavy, just smaller influenced than methane.
烃源岩热解气碳同位素分析结果表明，随成熟度增大，乙烷碳同位素随之变重，只是受影响的程度比甲烷小。
This paper analyzes the genesis of the CO2 of the southern part of Songliao Basin using carbon isotope chart of natural gas starting with the distribution characteristic of CO2.
从CO2分布特征入手，利用其天然气碳同位素图版分析了松辽盆地南部CO2成因类型；
With the application of hydrogen and oxygen isotopes(2H, 3H and 18O) and carbon isotope(14C), the recharge and renewability of confined water in Yinchuan Plain have been analyzed.
利用地下水氢氧同位素（2H、3H和18O）和碳同位素（14C）方法，分析银川平原承压水的补给更新能力。
Based on the characteristics of carbon isotope and components of gas in this field, it is believed that the gas is unlikely a mixture of biogas and the lower thermogenesis natural gas.
基于该气田天然气的组成和碳同位素特征认为，该气田的天然气也不可能是生物气与下部热成因天然气混合的产物。
Using GC/C/MS online carbon isotope analytic technic, abundant imforma- tion about single molecular carbon isotope composition can be taken from micro-samples(chromatographical scale).
MS在线碳同位素分析技术，能够从微量样品（色谱量级）中获得丰富的单分子碳同位素组成信息。
The surface hydrocarbon anomalies in the area was caused by oil and gas activities in deep part, according to the analysis and judgement using the carbon isotope and hydrocarbon ratio.
根据甲烷碳同位素法和烃类比值法分析判断该区地表烃类异常主要由深部油气活动所产生。
The kinetic model of carbon isotope fractionation may have difference in the different basin, which lies on gas source condition, accumulation history and sedimentary-tectonics history.
碳同位素分馏动力学模型在不同盆地会存在差异，不仅取决于气源条件，还与聚集历史、沉积-构造史有关。
The kinetic model of carbon isotope fractionation may have difference in the different basin, which lies on gas source condition, accumulation history and sedimentary-tectonics history.
碳同位素分馏动力学模型在不同盆地会存在差异，不仅取决于气源条件，还与聚集历史、沉积-构造史有关。
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