在碳同位素组成上具深源碳特征。
The composition of carbon isotope has the characteristics of carbon of deep seated source.
即不同金管之间气态烃的相对含量和碳同位素组成差异很小。
The proportional and carbon isotopic compositions of hydrocarbon and non-hydrocarbon gases are almost identical among these gold capsules.
从而为利用深海沉积有机质碳同位素组成研究古气候变迁提供了依据。
Such a study provides a basis for understanding palaeoclimate shifts by investigation of organic carbon isotopic composition in the deep sea sediments.
同时也证明了生排烃过程不影响正构烷烃单体碳同位素组成曲线的形状；
The distribution pattern of the carbon isotopic compositions of the individual n-alkanes shows almost no change during this process.
根据碳同位素组成和稀有气体同位素组成分析，认为研究区不存在纯的幔源气。
As the gases from different origins were interacted and mixed for along time, their composition, isotope constitution were complicated.
原油碳同位素研究表明，西部原油碳同位素组成和变化主要受沉积环境的控制。
Carbon isotopic studies show that sedimentary environments mainly control carbon isotopic compositions and variations of the western Qaidam oils.
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。
They are different from each other in toluene contents, the carbon isotope composition of ethane and the nitrogen and mercury vapor contents, etc.
一般认为，任何植物体的碳同位素组成主要与光合作用的C3和C4两种碳固定途径有关。
It is generally accepted that the carbon isotopic composition of plant material is correlated with C3 and C4 pathways of carbon fixation in photosynthesis.
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。
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).
因为如果是那样的话，阳光将会被转换成大量的碳、氧原子保存到石灰岩中的碳酸钙里，而事实却是，岩层的同位素组成（Isotopic composition）中没有留下任何蛛丝马迹。
They would leave subtle clues in the isotopic composition of the limestone by shifting the ratios of light to heavy carbon and oxygen atoms in its calcium carbonate.
根据片钠铝石稳定同位素组成，对比分析片钠铝石的碳来源。
The origin of dawsonite is emphatically contrasted and analyzed by stable isotope composition of dawsonite.
测定了某些地质样品的碳、氧同位素组成，并对其在地质上的应用作了解释。
Carbon and oxygen isotope compositions of some geological samples have been measured and its application to geology has been interpreted in this paper.
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。
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.
天然气的组分和碳、氢同位素组成特征研究表明塔里木盆地已发现的天然气均为热解气。
Research on chemical components and isotope composition of carbon and hydrogen of natural gases from the Tarim basin shows that all discovered gases in this basin are thermogenic.
根据含矿层序中的碳、氧同位素组成和稀土元素(REE)模式，认为大宝山矿床是海底热事件的结果。
Based on the carbon and oxygen isotopic composition and rare earth element (REE) patterns, the origin of the Dabaoshan deposit is considered to be related to the sea-floor thermal events.
根据碳同位素与氦同位素以及气组成分析，表明该区所产天然气为典型的生物甲烷气。
According to the results of carbon and helium isotopic analyses and gas component analysis, it is thought that the natural gas produced in the region belongs to a typical biogenic methane gas.
海相碳酸盐岩中的碳、氧同位素组成及其演化特征分析是古气候、古海洋环境研究的一种常用手段。
The carbon and oxygen isotope composition and its evolution of Marine carbonate rock is commonly means to the study of the ancient climate and ancient Marine environment.
通过对我国陆相成因天然气碳、氢同位素研究，探讨其同位素组成特征及其意义，从而为各种成因类型天然气的勘探开发提供了有益的信息。
Studies of the C and H isotopic composition of natural gases of continental origin will provide valuable information on the prospecting and development of natural gases of different genetic types.
用硫、碳和铅同位素组成说明成矿物质的复杂来源。
The isotopic composition of lead, sulphur and carbon demonstrate a complex source of ore forming material.
对凹凸棒石粘土矿床矿物碳、氢、氧稳定同位素组成提出新的解释，认识同位素组成变化与古环境的关系。
The stable isotope of hydrogen, oxygen and carbon are reinterpreted. The relationship between isotope constituent and paleoenvironment is understood.
在中国的主要沙漠和戈壁等粉尘源区采集了地表沙或土壤（统称为表土）样品，分析了样品的碳酸盐含量和碳酸盐的碳氧同位素组成。
Surface soil samples were collected in the deserts and Gobi regions of China. The carbonate content and carbon and oxygen isotopic composition were analyzed.
碳、氧同位素组成指示碳来源于壳幔混合。
Composition of carbon and oxygen isotope indicates that origin of carbon comes from mixture of the crust and mantle.
通过辽西义县盆地上白垩统义县组湖相碳酸盐岩碳氧稳定同位素组成，分析了赋存热河生物群的义县盆地湖湘沉积环境。
The present study made a detailed carbon and oxygen stable isotope analysis on the lacustrine carbonates from the Lower Cretaceous Yixian Formation, Yixian, western Liaoning, NE China.
测定了某些地质样品的碳、氧同位素组成，并对其在地质上的应用作了解释。
Carbon and oxygen isotope compositions of some geological samples have been measured and its application to geology has been interpreted in this pa...
测定了某些地质样品的碳、氧同位素组成，并对其在地质上的应用作了解释。
Carbon and oxygen isotope compositions of some geological samples have been measured and its application to geology has been interpreted in this pa...
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